ipu3: Backport to freescale commit

commit ad19aef4a80094221b1b826185aea924627e8642

ENGR00155140 ipuv3: add support of power suspend/resume

add support of power suspend/resume.
because IPU has issue of restore current buffer register,
this code only work for single buffer mode.

Signed-off-by: Jason Chen <b02280@freescale.com>
diff --git a/arch/arm/plat-mxc/include/mach/ipu-v3.h b/arch/arm/plat-mxc/include/mach/ipu-v3.h
index 713ee9f..8ef0dd3 100644
--- a/arch/arm/plat-mxc/include/mach/ipu-v3.h
+++ b/arch/arm/plat-mxc/include/mach/ipu-v3.h
@@ -16,737 +16,6 @@
 #ifndef __MACH_IPU_V3_H_
 #define __MACH_IPU_V3_H_
 
-#include <linux/ipu.h>
-
-/*  IPU Pixel format definitions */
-/*  Four-character-code (FOURCC) */
-#define fourcc(a, b, c, d)\
-	 (((__u32)(a)<<0)|((__u32)(b)<<8)|((__u32)(c)<<16)|((__u32)(d)<<24))
-
-/*!
- * @name IPU Pixel Formats
- *
- * Pixel formats are defined with ASCII FOURCC code. The pixel format codes are
- * the same used by V4L2 API.
- */
-
-/*! @{ */
-/*! @name Generic or Raw Data Formats */
-/*! @{ */
-#define IPU_PIX_FMT_GENERIC fourcc('I', 'P', 'U', '0')	/*!< IPU Generic Data */
-#define IPU_PIX_FMT_GENERIC_32 fourcc('I', 'P', 'U', '1')	/*!< IPU Generic Data */
-#define IPU_PIX_FMT_LVDS666 fourcc('L', 'V', 'D', '6')	/*!< IPU Generic Data */
-#define IPU_PIX_FMT_LVDS888 fourcc('L', 'V', 'D', '8')	/*!< IPU Generic Data */
-/*! @} */
-/*! @name RGB Formats */
-/*! @{ */
-#define IPU_PIX_FMT_RGB332  fourcc('R', 'G', 'B', '1')	/*!<  8  RGB-3-3-2    */
-#define IPU_PIX_FMT_RGB555  fourcc('R', 'G', 'B', 'O')	/*!< 16  RGB-5-5-5    */
-#define IPU_PIX_FMT_RGB565  fourcc('R', 'G', 'B', 'P')	/*!< 1 6  RGB-5-6-5   */
-#define IPU_PIX_FMT_RGB666  fourcc('R', 'G', 'B', '6')	/*!< 18  RGB-6-6-6    */
-#define IPU_PIX_FMT_BGR666  fourcc('B', 'G', 'R', '6')	/*!< 18  BGR-6-6-6    */
-#define IPU_PIX_FMT_BGR24   fourcc('B', 'G', 'R', '3')	/*!< 24  BGR-8-8-8    */
-#define IPU_PIX_FMT_RGB24   fourcc('R', 'G', 'B', '3')	/*!< 24  RGB-8-8-8    */
-#define IPU_PIX_FMT_GBR24   fourcc('G', 'B', 'R', '3')	/*!< 24  GBR-8-8-8    */
-#define IPU_PIX_FMT_BGR32   fourcc('B', 'G', 'R', '4')	/*!< 32  BGR-8-8-8-8  */
-#define IPU_PIX_FMT_BGRA32  fourcc('B', 'G', 'R', 'A')	/*!< 32  BGR-8-8-8-8  */
-#define IPU_PIX_FMT_RGB32   fourcc('R', 'G', 'B', '4')	/*!< 32  RGB-8-8-8-8  */
-#define IPU_PIX_FMT_RGBA32  fourcc('R', 'G', 'B', 'A')	/*!< 32  RGB-8-8-8-8  */
-#define IPU_PIX_FMT_ABGR32  fourcc('A', 'B', 'G', 'R')	/*!< 32  ABGR-8-8-8-8 */
-/*! @} */
-/*! @name YUV Interleaved Formats */
-/*! @{ */
-#define IPU_PIX_FMT_YUYV    fourcc('Y', 'U', 'Y', 'V')	/*!< 16 YUV 4:2:2 */
-#define IPU_PIX_FMT_UYVY    fourcc('U', 'Y', 'V', 'Y')	/*!< 16 YUV 4:2:2 */
-#define IPU_PIX_FMT_YVYU    fourcc('Y', 'V', 'Y', 'U')  /*!< 16 YVYU 4:2:2 */
-#define IPU_PIX_FMT_VYUY    fourcc('V', 'Y', 'U', 'Y')  /*!< 16 VYYU 4:2:2 */
-#define IPU_PIX_FMT_Y41P    fourcc('Y', '4', '1', 'P')	/*!< 12 YUV 4:1:1 */
-#define IPU_PIX_FMT_YUV444  fourcc('Y', '4', '4', '4')	/*!< 24 YUV 4:4:4 */
-#define IPU_PIX_FMT_VYU444  fourcc('V', '4', '4', '4')	/*!< 24 VYU 4:4:4 */
-/* two planes -- one Y, one Cb + Cr interleaved  */
-#define IPU_PIX_FMT_NV12    fourcc('N', 'V', '1', '2') /* 12  Y/CbCr 4:2:0  */
-/*! @} */
-/*! @name YUV Planar Formats */
-/*! @{ */
-#define IPU_PIX_FMT_GREY    fourcc('G', 'R', 'E', 'Y')	/*!< 8  Greyscale */
-#define IPU_PIX_FMT_YVU410P fourcc('Y', 'V', 'U', '9')	/*!< 9  YVU 4:1:0 */
-#define IPU_PIX_FMT_YUV410P fourcc('Y', 'U', 'V', '9')	/*!< 9  YUV 4:1:0 */
-#define IPU_PIX_FMT_YVU420P fourcc('Y', 'V', '1', '2')	/*!< 12 YVU 4:2:0 */
-#define IPU_PIX_FMT_YUV420P fourcc('I', '4', '2', '0')	/*!< 12 YUV 4:2:0 */
-#define IPU_PIX_FMT_YUV420P2 fourcc('Y', 'U', '1', '2')	/*!< 12 YUV 4:2:0 */
-#define IPU_PIX_FMT_YVU422P fourcc('Y', 'V', '1', '6')	/*!< 16 YVU 4:2:2 */
-#define IPU_PIX_FMT_YUV422P fourcc('4', '2', '2', 'P')	/*!< 16 YUV 4:2:2 */
-/*! @} */
-
-/* IPU Driver channels definitions.	*/
-/* Note these are different from IDMA channels */
-#define IPU_MAX_CH	32
-#define _MAKE_CHAN(num, v_in, g_in, a_in, out) \
-	((num << 24) | (v_in << 18) | (g_in << 12) | (a_in << 6) | out)
-#define _MAKE_ALT_CHAN(ch)		(ch | (IPU_MAX_CH << 24))
-#define IPU_CHAN_ID(ch)			(ch >> 24)
-#define IPU_CHAN_ALT(ch)		(ch & 0x02000000)
-#define IPU_CHAN_ALPHA_IN_DMA(ch)	((uint32_t) (ch >> 6) & 0x3F)
-#define IPU_CHAN_GRAPH_IN_DMA(ch)	((uint32_t) (ch >> 12) & 0x3F)
-#define IPU_CHAN_VIDEO_IN_DMA(ch)	((uint32_t) (ch >> 18) & 0x3F)
-#define IPU_CHAN_OUT_DMA(ch)		((uint32_t) (ch & 0x3F))
-#define NO_DMA 0x3F
-#define ALT	1
-/*!
- * Enumeration of IPU logical channels. An IPU logical channel is defined as a
- * combination of an input (memory to IPU), output (IPU to memory), and/or
- * secondary input IDMA channels and in some cases an Image Converter task.
- * Some channels consist of only an input or output.
- */
-typedef enum {
-	CHAN_NONE = -1,
-	MEM_ROT_ENC_MEM = _MAKE_CHAN(1, 45, NO_DMA, NO_DMA, 48),
-	MEM_ROT_VF_MEM = _MAKE_CHAN(2, 46, NO_DMA, NO_DMA, 49),
-	MEM_ROT_PP_MEM = _MAKE_CHAN(3, 47, NO_DMA, NO_DMA, 50),
-
-	MEM_PRP_ENC_MEM = _MAKE_CHAN(4, 12, 14, 17, 20),
-	MEM_PRP_VF_MEM = _MAKE_CHAN(5, 12, 14, 17, 21),
-	MEM_PP_MEM = _MAKE_CHAN(6, 11, 15, 18, 22),
-
-	MEM_DC_SYNC = _MAKE_CHAN(7, 28, NO_DMA, NO_DMA, NO_DMA),
-	MEM_DC_ASYNC = _MAKE_CHAN(8, 41, NO_DMA, NO_DMA, NO_DMA),
-	MEM_BG_SYNC = _MAKE_CHAN(9, 23, NO_DMA, 51, NO_DMA),
-	MEM_FG_SYNC = _MAKE_CHAN(10, 27, NO_DMA, 31, NO_DMA),
-
-	MEM_BG_ASYNC0 = _MAKE_CHAN(11, 24, NO_DMA, 52, NO_DMA),
-	MEM_FG_ASYNC0 = _MAKE_CHAN(12, 29, NO_DMA, 33, NO_DMA),
-	MEM_BG_ASYNC1 = _MAKE_ALT_CHAN(MEM_BG_ASYNC0),
-	MEM_FG_ASYNC1 = _MAKE_ALT_CHAN(MEM_FG_ASYNC0),
-
-	DIRECT_ASYNC0 = _MAKE_CHAN(13, NO_DMA, NO_DMA, NO_DMA, NO_DMA),
-	DIRECT_ASYNC1 = _MAKE_CHAN(14, NO_DMA, NO_DMA, NO_DMA, NO_DMA),
-
-	CSI_MEM0 = _MAKE_CHAN(15, NO_DMA, NO_DMA, NO_DMA, 0),
-	CSI_MEM1 = _MAKE_CHAN(16, NO_DMA, NO_DMA, NO_DMA, 1),
-	CSI_MEM2 = _MAKE_CHAN(17, NO_DMA, NO_DMA, NO_DMA, 2),
-	CSI_MEM3 = _MAKE_CHAN(18, NO_DMA, NO_DMA, NO_DMA, 3),
-
-	CSI_MEM = CSI_MEM0,
-
-	CSI_PRP_ENC_MEM = _MAKE_CHAN(19, NO_DMA, NO_DMA, NO_DMA, 20),
-	CSI_PRP_VF_MEM = _MAKE_CHAN(20, NO_DMA, NO_DMA, NO_DMA, 21),
-
-	MEM_VDI_PRP_VF_MEM_P = _MAKE_CHAN(21, 8, 14, 17, 21),
-	MEM_VDI_PRP_VF_MEM = _MAKE_CHAN(22, 9, 14, 17, 21),
-	MEM_VDI_PRP_VF_MEM_N = _MAKE_CHAN(23, 10, 14, 17, 21),
-
-	MEM_PP_ADC = CHAN_NONE,
-	ADC_SYS2 = CHAN_NONE,
-
-} ipu_channel_t;
-
-/*!
- * Enumeration of types of buffers for a logical channel.
- */
-typedef enum {
-	IPU_OUTPUT_BUFFER = 0,	/*!< Buffer for output from IPU */
-	IPU_ALPHA_IN_BUFFER = 1,	/*!< Buffer for input to IPU */
-	IPU_GRAPH_IN_BUFFER = 2,	/*!< Buffer for input to IPU */
-	IPU_VIDEO_IN_BUFFER = 3,	/*!< Buffer for input to IPU */
-	IPU_INPUT_BUFFER = IPU_VIDEO_IN_BUFFER,
-	IPU_SEC_INPUT_BUFFER = IPU_GRAPH_IN_BUFFER,
-} ipu_buffer_t;
-
-#define IPU_PANEL_SERIAL		1
-#define IPU_PANEL_PARALLEL		2
-
-/*!
- * Enumeration of ADC channel operation mode.
- */
-typedef enum {
-	Disable,
-	WriteTemplateNonSeq,
-	ReadTemplateNonSeq,
-	WriteTemplateUnCon,
-	ReadTemplateUnCon,
-	WriteDataWithRS,
-	WriteDataWoRS,
-	WriteCmd
-} mcu_mode_t;
-
-/*!
- * Enumeration of ADC channel addressing mode.
- */
-typedef enum {
-	FullWoBE,
-	FullWithBE,
-	XY
-} display_addressing_t;
-
-/*!
- * Union of initialization parameters for a logical channel.
- */
-typedef union {
-	struct {
-		uint32_t csi;
-		uint32_t mipi_id;
-		bool mipi_en;
-		bool interlaced;
-	} csi_mem;
-	struct {
-		uint32_t in_width;
-		uint32_t in_height;
-		uint32_t in_pixel_fmt;
-		uint32_t out_width;
-		uint32_t out_height;
-		uint32_t out_pixel_fmt;
-		uint32_t csi;
-	} csi_prp_enc_mem;
-	struct {
-		uint32_t in_width;
-		uint32_t in_height;
-		uint32_t in_pixel_fmt;
-		uint32_t out_width;
-		uint32_t out_height;
-		uint32_t out_pixel_fmt;
-		uint32_t outh_resize_ratio;
-		uint32_t outv_resize_ratio;
-	} mem_prp_enc_mem;
-	struct {
-		uint32_t in_width;
-		uint32_t in_height;
-		uint32_t in_pixel_fmt;
-		uint32_t out_width;
-		uint32_t out_height;
-		uint32_t out_pixel_fmt;
-	} mem_rot_enc_mem;
-	struct {
-		uint32_t in_width;
-		uint32_t in_height;
-		uint32_t in_pixel_fmt;
-		uint32_t out_width;
-		uint32_t out_height;
-		uint32_t out_pixel_fmt;
-		bool graphics_combine_en;
-		bool global_alpha_en;
-		bool key_color_en;
-		uint32_t csi;
-	} csi_prp_vf_mem;
-	struct {
-		uint32_t in_width;
-		uint32_t in_height;
-		uint32_t in_pixel_fmt;
-		uint32_t out_width;
-		uint32_t out_height;
-		uint32_t out_pixel_fmt;
-		bool graphics_combine_en;
-		bool global_alpha_en;
-		bool key_color_en;
-		display_port_t disp;
-		uint32_t out_left;
-		uint32_t out_top;
-	} csi_prp_vf_adc;
-	struct {
-		uint32_t in_width;
-		uint32_t in_height;
-		uint32_t in_pixel_fmt;
-		uint32_t out_width;
-		uint32_t out_height;
-		uint32_t out_pixel_fmt;
-		uint32_t outh_resize_ratio;
-		uint32_t outv_resize_ratio;
-		bool graphics_combine_en;
-		bool global_alpha_en;
-		bool key_color_en;
-		uint32_t in_g_pixel_fmt;
-		uint8_t alpha;
-		uint32_t key_color;
-		bool alpha_chan_en;
-		ipu_motion_sel motion_sel;
-		enum v4l2_field field_fmt;
-	} mem_prp_vf_mem;
-	struct {
-		uint32_t temp;
-	} mem_prp_vf_adc;
-	struct {
-		uint32_t temp;
-	} mem_rot_vf_mem;
-	struct {
-		uint32_t in_width;
-		uint32_t in_height;
-		uint32_t in_pixel_fmt;
-		uint32_t out_width;
-		uint32_t out_height;
-		uint32_t out_pixel_fmt;
-		uint32_t outh_resize_ratio;
-		uint32_t outv_resize_ratio;
-		bool graphics_combine_en;
-		bool global_alpha_en;
-		bool key_color_en;
-		uint32_t in_g_pixel_fmt;
-		uint8_t alpha;
-		uint32_t key_color;
-		bool alpha_chan_en;
-	} mem_pp_mem;
-	struct {
-		uint32_t temp;
-	} mem_rot_mem;
-	struct {
-		uint32_t in_width;
-		uint32_t in_height;
-		uint32_t in_pixel_fmt;
-		uint32_t out_width;
-		uint32_t out_height;
-		uint32_t out_pixel_fmt;
-		bool graphics_combine_en;
-		bool global_alpha_en;
-		bool key_color_en;
-		display_port_t disp;
-		uint32_t out_left;
-		uint32_t out_top;
-	} mem_pp_adc;
-	struct {
-		uint32_t di;
-		bool interlaced;
-		uint32_t in_pixel_fmt;
-		uint32_t out_pixel_fmt;
-	} mem_dc_sync;
-	struct {
-		uint32_t temp;
-	} mem_sdc_fg;
-	struct {
-		uint32_t di;
-		bool interlaced;
-		uint32_t in_pixel_fmt;
-		uint32_t out_pixel_fmt;
-		bool alpha_chan_en;
-	} mem_dp_bg_sync;
-	struct {
-		uint32_t temp;
-	} mem_sdc_bg;
-	struct {
-		uint32_t di;
-		bool interlaced;
-		uint32_t in_pixel_fmt;
-		uint32_t out_pixel_fmt;
-		bool alpha_chan_en;
-	} mem_dp_fg_sync;
-	struct {
-		uint32_t di;
-	} direct_async;
-	struct {
-		display_port_t disp;
-		mcu_mode_t ch_mode;
-		uint32_t out_left;
-		uint32_t out_top;
-	} adc_sys1;
-	struct {
-		display_port_t disp;
-		mcu_mode_t ch_mode;
-		uint32_t out_left;
-		uint32_t out_top;
-	} adc_sys2;
-} ipu_channel_params_t;
-
-/*!
- * Enumeration of IPU interrupt sources.
- */
-enum ipu_irq_line {
-	IPU_IRQ_CSI0_OUT_EOF = 0,
-	IPU_IRQ_CSI1_OUT_EOF = 1,
-	IPU_IRQ_CSI2_OUT_EOF = 2,
-	IPU_IRQ_CSI3_OUT_EOF = 3,
-	IPU_IRQ_VDI_P_IN_EOF = 8,
-	IPU_IRQ_VDI_C_IN_EOF = 9,
-	IPU_IRQ_VDI_N_IN_EOF = 10,
-	IPU_IRQ_PP_IN_EOF = 11,
-	IPU_IRQ_PRP_IN_EOF = 12,
-	IPU_IRQ_PRP_GRAPH_IN_EOF = 14,
-	IPU_IRQ_PP_GRAPH_IN_EOF = 15,
-	IPU_IRQ_PRP_ALPHA_IN_EOF = 17,
-	IPU_IRQ_PP_ALPHA_IN_EOF = 18,
-	IPU_IRQ_PRP_ENC_OUT_EOF = 20,
-	IPU_IRQ_PRP_VF_OUT_EOF = 21,
-	IPU_IRQ_PP_OUT_EOF = 22,
-	IPU_IRQ_BG_SYNC_EOF = 23,
-	IPU_IRQ_BG_ASYNC_EOF = 24,
-	IPU_IRQ_FG_SYNC_EOF = 27,
-	IPU_IRQ_DC_SYNC_EOF = 28,
-	IPU_IRQ_FG_ASYNC_EOF = 29,
-	IPU_IRQ_FG_ALPHA_SYNC_EOF = 31,
-
-	IPU_IRQ_FG_ALPHA_ASYNC_EOF = 33,
-	IPU_IRQ_DC_READ_EOF = 40,
-	IPU_IRQ_DC_ASYNC_EOF = 41,
-	IPU_IRQ_DC_CMD1_EOF = 42,
-	IPU_IRQ_DC_CMD2_EOF = 43,
-	IPU_IRQ_DC_MASK_EOF = 44,
-	IPU_IRQ_PRP_ENC_ROT_IN_EOF = 45,
-	IPU_IRQ_PRP_VF_ROT_IN_EOF = 46,
-	IPU_IRQ_PP_ROT_IN_EOF = 47,
-	IPU_IRQ_PRP_ENC_ROT_OUT_EOF = 48,
-	IPU_IRQ_PRP_VF_ROT_OUT_EOF = 49,
-	IPU_IRQ_PP_ROT_OUT_EOF = 50,
-	IPU_IRQ_BG_ALPHA_SYNC_EOF = 51,
-	IPU_IRQ_BG_ALPHA_ASYNC_EOF = 52,
-
-	IPU_IRQ_DP_SF_START = 448 + 2,
-	IPU_IRQ_DP_SF_END = 448 + 3,
-	IPU_IRQ_BG_SF_END = IPU_IRQ_DP_SF_END,
-	IPU_IRQ_DC_FC_0 = 448 + 8,
-	IPU_IRQ_DC_FC_1 = 448 + 9,
-	IPU_IRQ_DC_FC_2 = 448 + 10,
-	IPU_IRQ_DC_FC_3 = 448 + 11,
-	IPU_IRQ_DC_FC_4 = 448 + 12,
-	IPU_IRQ_DC_FC_6 = 448 + 13,
-	IPU_IRQ_VSYNC_PRE_0 = 448 + 14,
-	IPU_IRQ_VSYNC_PRE_1 = 448 + 15,
-
-	IPU_IRQ_COUNT
-};
-
-/*!
- * Bitfield of Display Interface signal polarities.
- */
-typedef struct {
-	unsigned datamask_en:1;
-	unsigned int_clk:1;
-	unsigned interlaced:1;
-	unsigned odd_field_first:1;
-	unsigned clksel_en:1;
-	unsigned clkidle_en:1;
-	unsigned data_pol:1;	/* true = inverted */
-	unsigned clk_pol:1;	/* true = rising edge */
-	unsigned enable_pol:1;
-	unsigned Hsync_pol:1;	/* true = active high */
-	unsigned Vsync_pol:1;
-} ipu_di_signal_cfg_t;
-
-/*!
- * Bitfield of CSI signal polarities and modes.
- */
-
-typedef struct {
-	unsigned data_width:4;
-	unsigned clk_mode:3;
-	unsigned ext_vsync:1;
-	unsigned Vsync_pol:1;
-	unsigned Hsync_pol:1;
-	unsigned pixclk_pol:1;
-	unsigned data_pol:1;
-	unsigned sens_clksrc:1;
-	unsigned pack_tight:1;
-	unsigned force_eof:1;
-	unsigned data_en_pol:1;
-	unsigned data_fmt;
-	unsigned csi;
-	unsigned mclk;
-} ipu_csi_signal_cfg_t;
-
-/*!
- * Enumeration of CSI data bus widths.
- */
-enum {
-	IPU_CSI_DATA_WIDTH_4,
-	IPU_CSI_DATA_WIDTH_8,
-	IPU_CSI_DATA_WIDTH_10,
-	IPU_CSI_DATA_WIDTH_16,
-};
-
-/*!
- * Enumeration of CSI clock modes.
- */
-enum {
-	IPU_CSI_CLK_MODE_GATED_CLK,
-	IPU_CSI_CLK_MODE_NONGATED_CLK,
-	IPU_CSI_CLK_MODE_CCIR656_PROGRESSIVE,
-	IPU_CSI_CLK_MODE_CCIR656_INTERLACED,
-	IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_DDR,
-	IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_SDR,
-	IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_DDR,
-	IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_SDR,
-};
-
-enum {
-	IPU_CSI_MIPI_DI0,
-	IPU_CSI_MIPI_DI1,
-	IPU_CSI_MIPI_DI2,
-	IPU_CSI_MIPI_DI3,
-};
-
-typedef enum {
-	RGB,
-	YCbCr,
-	YUV
-} ipu_color_space_t;
-
-/*!
- * Enumeration of ADC vertical sync mode.
- */
-typedef enum {
-	VsyncNone,
-	VsyncInternal,
-	VsyncCSI,
-	VsyncExternal
-} vsync_t;
-
-typedef enum {
-	DAT,
-	CMD
-} cmddata_t;
-
-/*!
- * Enumeration of ADC display update mode.
- */
-typedef enum {
-	IPU_ADC_REFRESH_NONE,
-	IPU_ADC_AUTO_REFRESH,
-	IPU_ADC_AUTO_REFRESH_SNOOP,
-	IPU_ADC_SNOOPING,
-} ipu_adc_update_mode_t;
-
-/*!
- * Enumeration of ADC display interface types (serial or parallel).
- */
-enum {
-	IPU_ADC_IFC_MODE_SYS80_TYPE1,
-	IPU_ADC_IFC_MODE_SYS80_TYPE2,
-	IPU_ADC_IFC_MODE_SYS68K_TYPE1,
-	IPU_ADC_IFC_MODE_SYS68K_TYPE2,
-	IPU_ADC_IFC_MODE_3WIRE_SERIAL,
-	IPU_ADC_IFC_MODE_4WIRE_SERIAL,
-	IPU_ADC_IFC_MODE_5WIRE_SERIAL_CLK,
-	IPU_ADC_IFC_MODE_5WIRE_SERIAL_CS,
-};
-
-enum {
-	IPU_ADC_IFC_WIDTH_8,
-	IPU_ADC_IFC_WIDTH_16,
-};
-
-/*!
- * Enumeration of ADC display interface burst mode.
- */
-enum {
-	IPU_ADC_BURST_WCS,
-	IPU_ADC_BURST_WBLCK,
-	IPU_ADC_BURST_NONE,
-	IPU_ADC_BURST_SERIAL,
-};
-
-/*!
- * Enumeration of ADC display interface RW signal timing modes.
- */
-enum {
-	IPU_ADC_SER_NO_RW,
-	IPU_ADC_SER_RW_BEFORE_RS,
-	IPU_ADC_SER_RW_AFTER_RS,
-};
-
-/*!
- * Bitfield of ADC signal polarities and modes.
- */
-typedef struct {
-	unsigned data_pol:1;
-	unsigned clk_pol:1;
-	unsigned cs_pol:1;
-	unsigned rs_pol:1;
-	unsigned addr_pol:1;
-	unsigned read_pol:1;
-	unsigned write_pol:1;
-	unsigned Vsync_pol:1;
-	unsigned burst_pol:1;
-	unsigned burst_mode:2;
-	unsigned ifc_mode:3;
-	unsigned ifc_width:5;
-	unsigned ser_preamble_len:4;
-	unsigned ser_preamble:8;
-	unsigned ser_rw_mode:2;
-} ipu_adc_sig_cfg_t;
-
-/*!
- * Enumeration of ADC template commands.
- */
-enum {
-	RD_DATA,
-	RD_ACK,
-	RD_WAIT,
-	WR_XADDR,
-	WR_YADDR,
-	WR_ADDR,
-	WR_CMND,
-	WR_DATA,
-};
-
-/*!
- * Enumeration of ADC template command flow control.
- */
-enum {
-	SINGLE_STEP,
-	PAUSE,
-	STOP,
-};
-
-
-/*Define template constants*/
-#define     ATM_ADDR_RANGE      0x20	/*offset address of DISP */
-#define     TEMPLATE_BUF_SIZE   0x20	/*size of template */
-
-/*!
- * Define to create ADC template command entry.
- */
-#define ipu_adc_template_gen(oc, rs, fc, dat) (((rs) << 29) | ((fc) << 27) | \
-			((oc) << 24) | (dat))
-
-typedef struct {
-	u32 reg;
-	u32 value;
-} ipu_lpmc_reg_t;
-
-#define IPU_LPMC_REG_READ       0x80000000L
-
-#define CSI_MCLK_VF  1
-#define CSI_MCLK_ENC 2
-#define CSI_MCLK_RAW 4
-#define CSI_MCLK_I2C 8
-
-struct ipu_soc;
-/* Common IPU API */
-struct ipu_soc *ipu_get_soc(int id);
-int32_t ipu_init_channel(struct ipu_soc *ipu, ipu_channel_t channel, ipu_channel_params_t *params);
-void ipu_uninit_channel(struct ipu_soc *ipu, ipu_channel_t channel);
-
-static inline bool ipu_can_rotate_in_place(ipu_rotate_mode_t rot)
-{
-#ifdef CONFIG_MXC_IPU_V3D
-	return (rot < IPU_ROTATE_HORIZ_FLIP);
-#else
-	return (rot < IPU_ROTATE_90_RIGHT);
-#endif
-}
-
-int32_t ipu_init_channel_buffer(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
-				uint32_t pixel_fmt,
-				uint16_t width, uint16_t height,
-				uint32_t stride,
-				ipu_rotate_mode_t rot_mode,
-				dma_addr_t phyaddr_0, dma_addr_t phyaddr_1,
-				dma_addr_t phyaddr_2,
-				uint32_t u_offset, uint32_t v_offset);
-
-int32_t ipu_update_channel_buffer(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
-				  uint32_t bufNum, dma_addr_t phyaddr);
-
-int32_t ipu_update_channel_offset(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
-				uint32_t pixel_fmt,
-				uint16_t width, uint16_t height,
-				uint32_t stride,
-				uint32_t u, uint32_t v,
-				uint32_t vertical_offset, uint32_t horizontal_offset);
-
-int32_t ipu_select_buffer(struct ipu_soc *ipu, ipu_channel_t channel,
-			  ipu_buffer_t type, uint32_t bufNum);
-int32_t ipu_select_multi_vdi_buffer(struct ipu_soc *ipu, uint32_t bufNum);
-
-int32_t ipu_link_channels(struct ipu_soc *ipu, ipu_channel_t src_ch, ipu_channel_t dest_ch);
-int32_t ipu_unlink_channels(struct ipu_soc *ipu, ipu_channel_t src_ch, ipu_channel_t dest_ch);
-
-int32_t ipu_is_channel_busy(struct ipu_soc *ipu, ipu_channel_t channel);
-int32_t ipu_check_buffer_ready(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
-		uint32_t bufNum);
-void ipu_clear_buffer_ready(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
-		uint32_t bufNum);
-uint32_t ipu_get_cur_buffer_idx(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type);
-int32_t ipu_enable_channel(struct ipu_soc *ipu, ipu_channel_t channel);
-int32_t ipu_disable_channel(struct ipu_soc *ipu, ipu_channel_t channel, bool wait_for_stop);
-int32_t ipu_swap_channel(struct ipu_soc *ipu, ipu_channel_t from_ch, ipu_channel_t to_ch);
-
-int32_t ipu_enable_csi(struct ipu_soc *ipu, uint32_t csi);
-int32_t ipu_disable_csi(struct ipu_soc *ipu, uint32_t csi);
-
-int ipu_lowpwr_display_enable(void);
-int ipu_lowpwr_display_disable(void);
-
-void ipu_enable_irq(struct ipu_soc *ipu, uint32_t irq);
-void ipu_disable_irq(struct ipu_soc *ipu, uint32_t irq);
-void ipu_clear_irq(struct ipu_soc *ipu, uint32_t irq);
-int ipu_request_irq(struct ipu_soc *ipu, uint32_t irq,
-		    irqreturn_t(*handler) (int, void *),
-		    uint32_t irq_flags, const char *devname, void *dev_id);
-void ipu_free_irq(struct ipu_soc *ipu, uint32_t irq, void *dev_id);
-bool ipu_get_irq_status(struct ipu_soc *ipu, uint32_t irq);
-void ipu_set_csc_coefficients(struct ipu_soc *ipu, ipu_channel_t channel, int32_t param[][3]);
-
-/* two stripe calculations */
-struct stripe_param{
-	unsigned int input_width; /* width of the input stripe */
-	unsigned int output_width; /* width of the output stripe */
-	unsigned int input_column; /* the first column on the input stripe */
-	unsigned int output_column; /* the first column on the output stripe */
-	unsigned int idr;
-	/* inverse downisizing ratio parameter; expressed as a power of 2 */
-	unsigned int irr;
-	/* inverse resizing ratio parameter; expressed as a multiple of 2^-13 */
-};
-int ipu_calc_stripes_sizes(const unsigned int input_frame_width,
-				unsigned int output_frame_width,
-				const unsigned int maximal_stripe_width,
-				const unsigned long long cirr,
-				const unsigned int equal_stripes,
-				u32 input_pixelformat,
-				u32 output_pixelformat,
-				struct stripe_param *left,
-				struct stripe_param *right);
-
-/* SDC API */
-int32_t ipu_init_sync_panel(struct ipu_soc *ipu, int disp,
-			    uint32_t pixel_clk,
-			    uint16_t width, uint16_t height,
-			    uint32_t pixel_fmt,
-			    uint16_t h_start_width, uint16_t h_sync_width,
-			    uint16_t h_end_width, uint16_t v_start_width,
-			    uint16_t v_sync_width, uint16_t v_end_width,
-			    uint32_t v_to_h_sync, ipu_di_signal_cfg_t sig);
-
-void ipu_uninit_sync_panel(struct ipu_soc *ipu, int disp);
-
-int32_t ipu_disp_set_window_pos(struct ipu_soc *ipu, ipu_channel_t channel, int16_t x_pos,
-				int16_t y_pos);
-int32_t ipu_disp_get_window_pos(struct ipu_soc *ipu, ipu_channel_t channel, int16_t *x_pos,
-				int16_t *y_pos);
-int32_t ipu_disp_set_global_alpha(struct ipu_soc *ipu, ipu_channel_t channel, bool enable,
-				  uint8_t alpha);
-int32_t ipu_disp_set_color_key(struct ipu_soc *ipu, ipu_channel_t channel, bool enable,
-			       uint32_t colorKey);
-int32_t ipu_disp_set_gamma_correction(struct ipu_soc *ipu, ipu_channel_t channel, bool enable,
-				int constk[], int slopek[]);
-
-int ipu_init_async_panel(struct ipu_soc *ipu, int disp, int type, uint32_t cycle_time,
-			 uint32_t pixel_fmt, ipu_adc_sig_cfg_t sig);
-void ipu_disp_direct_write(struct ipu_soc *ipu, ipu_channel_t channel, u32 value, u32 offset);
-void ipu_reset_disp_panel(struct ipu_soc *ipu);
-
-/* CMOS Sensor Interface API */
-int32_t ipu_csi_init_interface(struct ipu_soc *ipu, uint16_t width, uint16_t height,
-			       uint32_t pixel_fmt, ipu_csi_signal_cfg_t sig);
-
-int32_t ipu_csi_get_sensor_protocol(struct ipu_soc *ipu, uint32_t csi);
-
-int32_t ipu_csi_enable_mclk(struct ipu_soc *ipu, int src, bool flag, bool wait);
-
-static inline int32_t ipu_csi_enable_mclk_if(struct ipu_soc *ipu, int src, uint32_t csi,
-		bool flag, bool wait)
-{
-	return ipu_csi_enable_mclk(ipu, csi, flag, wait);
-}
-
-int ipu_csi_read_mclk_flag(void);
-
-void ipu_csi_flash_strobe(bool flag);
-
-void ipu_csi_get_window_size(struct ipu_soc *ipu, uint32_t *width, uint32_t *height, uint32_t csi);
-
-void ipu_csi_set_window_size(struct ipu_soc *ipu, uint32_t width, uint32_t height, uint32_t csi);
-
-void ipu_csi_set_window_pos(struct ipu_soc *ipu, uint32_t left, uint32_t top, uint32_t csi);
-
-uint32_t bytes_per_pixel(uint32_t fmt);
-
 struct ipuv3_fb_platform_data {
 	char				disp_dev[32];
 	u32				interface_pix_fmt;
diff --git a/drivers/mxc/ipu3/ipu_calc_stripes_sizes.c b/drivers/mxc/ipu3/ipu_calc_stripes_sizes.c
index c4e5b40..8c13a36 100644
--- a/drivers/mxc/ipu3/ipu_calc_stripes_sizes.c
+++ b/drivers/mxc/ipu3/ipu_calc_stripes_sizes.c
@@ -21,7 +21,6 @@
 
 #include <linux/module.h>
 #include <linux/ipu.h>
-#include <mach/ipu-v3.h>
 #include <asm/div64.h>
 
 #define BPP_32 0
diff --git a/drivers/mxc/ipu3/ipu_capture.c b/drivers/mxc/ipu3/ipu_capture.c
index 26b8b15..88b1a39 100644
--- a/drivers/mxc/ipu3/ipu_capture.c
+++ b/drivers/mxc/ipu3/ipu_capture.c
@@ -94,9 +94,10 @@
 		cfg_param.force_eof << CSI_SENS_CONF_FORCE_EOF_SHIFT |
 		cfg_param.data_en_pol << CSI_SENS_CONF_DATA_EN_POL_SHIFT;
 
-	_ipu_get(ipu);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	ipu_csi_write(ipu, csi, data, CSI_SENS_CONF);
 
@@ -135,10 +136,11 @@
 			ipu_csi_write(ipu, csi, 0x40596, CSI_CCIR_CODE_2);
 			ipu_csi_write(ipu, csi, 0xFF0000, CSI_CCIR_CODE_3);
 		} else {
+			spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 			dev_err(ipu->dev, "Unsupported CCIR656 interlaced "
 					"video mode\n");
-			_ipu_unlock(ipu, &lock_flags);
-			_ipu_put(ipu);
+			if (!ipu->clk_enabled)
+				clk_disable(ipu->ipu_clk);
 			return -EINVAL;
 		}
 		_ipu_csi_ccir_err_detection_enable(ipu, csi);
@@ -163,9 +165,10 @@
 	dev_dbg(ipu->dev, "CSI_ACT_FRM_SIZE = 0x%08X\n",
 		ipu_csi_read(ipu, csi, CSI_ACT_FRM_SIZE));
 
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
-	_ipu_put(ipu);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 
 	return 0;
 }
@@ -253,17 +256,19 @@
 	uint32_t reg;
 	unsigned long lock_flags;
 
-	_ipu_get(ipu);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	reg = ipu_csi_read(ipu, csi, CSI_ACT_FRM_SIZE);
 	*width = (reg & 0xFFFF) + 1;
 	*height = (reg >> 16 & 0xFFFF) + 1;
 
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
-	_ipu_put(ipu);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 EXPORT_SYMBOL(ipu_csi_get_window_size);
 
@@ -279,15 +284,17 @@
 {
 	unsigned long lock_flags;
 
-	_ipu_get(ipu);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	ipu_csi_write(ipu, csi, (width - 1) | (height - 1) << 16, CSI_ACT_FRM_SIZE);
 
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
-	_ipu_put(ipu);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 EXPORT_SYMBOL(ipu_csi_set_window_size);
 
@@ -304,18 +311,20 @@
 	uint32_t temp;
 	unsigned long lock_flags;
 
-	_ipu_get(ipu);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	temp = ipu_csi_read(ipu, csi, CSI_OUT_FRM_CTRL);
 	temp &= ~(CSI_HSC_MASK | CSI_VSC_MASK);
 	temp |= ((top << CSI_VSC_SHIFT) | (left << CSI_HSC_SHIFT));
 	ipu_csi_write(ipu, csi, temp, CSI_OUT_FRM_CTRL);
 
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
-	_ipu_put(ipu);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 EXPORT_SYMBOL(ipu_csi_set_window_pos);
 
@@ -329,10 +338,21 @@
 void _ipu_csi_horizontal_downsize_enable(struct ipu_soc *ipu, uint32_t csi)
 {
 	uint32_t temp;
+	unsigned long lock_flags;
+
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	temp = ipu_csi_read(ipu, csi, CSI_OUT_FRM_CTRL);
 	temp |= CSI_HORI_DOWNSIZE_EN;
 	ipu_csi_write(ipu, csi, temp, CSI_OUT_FRM_CTRL);
+
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 
 /*!
@@ -345,10 +365,21 @@
 void _ipu_csi_horizontal_downsize_disable(struct ipu_soc *ipu, uint32_t csi)
 {
 	uint32_t temp;
+	unsigned long lock_flags;
+
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	temp = ipu_csi_read(ipu, csi, CSI_OUT_FRM_CTRL);
 	temp &= ~CSI_HORI_DOWNSIZE_EN;
 	ipu_csi_write(ipu, csi, temp, CSI_OUT_FRM_CTRL);
+
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 
 /*!
@@ -361,10 +392,21 @@
 void _ipu_csi_vertical_downsize_enable(struct ipu_soc *ipu, uint32_t csi)
 {
 	uint32_t temp;
+	unsigned long lock_flags;
+
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	temp = ipu_csi_read(ipu, csi, CSI_OUT_FRM_CTRL);
 	temp |= CSI_VERT_DOWNSIZE_EN;
 	ipu_csi_write(ipu, csi, temp, CSI_OUT_FRM_CTRL);
+
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 
 /*!
@@ -377,14 +419,25 @@
 void _ipu_csi_vertical_downsize_disable(struct ipu_soc *ipu, uint32_t csi)
 {
 	uint32_t temp;
+	unsigned long lock_flags;
+
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	temp = ipu_csi_read(ipu, csi, CSI_OUT_FRM_CTRL);
 	temp &= ~CSI_VERT_DOWNSIZE_EN;
 	ipu_csi_write(ipu, csi, temp, CSI_OUT_FRM_CTRL);
+
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 
 /*!
- * _ipu_csi_set_test_generator
+ * ipu_csi_set_test_generator
  *
  * @param	ipu		ipu handler
  * @param	active       1 for active and 0 for inactive
@@ -395,10 +448,16 @@
  * @param	pixel_clk   desired pixel clock frequency in Hz
  * @param       csi          csi 0 or csi 1
  */
-void _ipu_csi_set_test_generator(struct ipu_soc *ipu, bool active, uint32_t r_value,
+void ipu_csi_set_test_generator(struct ipu_soc *ipu, bool active, uint32_t r_value,
 	uint32_t g_value, uint32_t b_value, uint32_t pix_clk, uint32_t csi)
 {
 	uint32_t temp;
+	unsigned long lock_flags;
+
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	temp = ipu_csi_read(ipu, csi, CSI_TST_CTRL);
 
@@ -417,7 +476,13 @@
 			(b_value << CSI_TEST_GEN_B_SHIFT);
 		ipu_csi_write(ipu, csi, temp, CSI_TST_CTRL);
 	}
+
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
+EXPORT_SYMBOL(ipu_csi_set_test_generator);
 
 /*!
  * _ipu_csi_ccir_err_detection_en
@@ -431,10 +496,15 @@
 {
 	uint32_t temp;
 
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
 	temp = ipu_csi_read(ipu, csi, CSI_CCIR_CODE_1);
 	temp |= CSI_CCIR_ERR_DET_EN;
 	ipu_csi_write(ipu, csi, temp, CSI_CCIR_CODE_1);
 
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 
 /*!
@@ -449,10 +519,15 @@
 {
 	uint32_t temp;
 
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
 	temp = ipu_csi_read(ipu, csi, CSI_CCIR_CODE_1);
 	temp &= ~CSI_CCIR_ERR_DET_EN;
 	ipu_csi_write(ipu, csi, temp, CSI_CCIR_CODE_1);
 
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 
 /*!
@@ -469,12 +544,18 @@
 {
 	uint32_t temp;
 	int retval = 0;
+	unsigned long lock_flags;
 
 	if (di_val > 0xFFL) {
 		retval = -EINVAL;
 		goto err;
 	}
 
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
+
 	temp = ipu_csi_read(ipu, csi, CSI_MIPI_DI);
 
 	switch (num) {
@@ -502,6 +583,9 @@
 		retval = -EINVAL;
 	}
 
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 err:
 	return retval;
 }
@@ -522,18 +606,27 @@
 {
 	uint32_t temp;
 	int retval = 0;
+	unsigned long lock_flags;
 
 	if (max_ratio > 5) {
 		retval = -EINVAL;
 		goto err;
 	}
 
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
+
 	temp = ipu_csi_read(ipu, csi, CSI_SKIP);
 	temp &= ~(CSI_MAX_RATIO_SKIP_ISP_MASK | CSI_SKIP_ISP_MASK);
 	temp |= (max_ratio << CSI_MAX_RATIO_SKIP_ISP_SHIFT) |
 		(skip << CSI_SKIP_ISP_SHIFT);
 	ipu_csi_write(ipu, csi, temp, CSI_SKIP);
 
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 err:
 	return retval;
 }
@@ -556,12 +649,18 @@
 {
 	uint32_t temp;
 	int retval = 0;
+	unsigned long lock_flags;
 
 	if (max_ratio > 5 || id > 3) {
 		retval = -EINVAL;
 		goto err;
 	}
 
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
+
 	temp = ipu_csi_read(ipu, csi, CSI_SKIP);
 	temp &= ~(CSI_MAX_RATIO_SKIP_SMFC_MASK | CSI_ID_2_SKIP_MASK |
 			CSI_SKIP_SMFC_MASK);
@@ -570,6 +669,10 @@
 			(skip << CSI_SKIP_SMFC_SHIFT);
 	ipu_csi_write(ipu, csi, temp, CSI_SKIP);
 
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 err:
 	return retval;
 }
@@ -627,6 +730,12 @@
 void _ipu_smfc_set_wmc(struct ipu_soc *ipu, ipu_channel_t channel, bool set, uint32_t level)
 {
 	uint32_t temp;
+	unsigned long lock_flags;
+
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	temp = ipu_smfc_read(ipu, SMFC_WMC);
 
@@ -672,6 +781,10 @@
 	}
 
 	ipu_smfc_write(ipu, temp, SMFC_WMC);
+
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 
 /*!
@@ -685,6 +798,9 @@
 void _ipu_smfc_set_burst_size(struct ipu_soc *ipu, ipu_channel_t channel, uint32_t bs)
 {
 	uint32_t temp;
+	unsigned long lock_flags;
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	temp = ipu_smfc_read(ipu, SMFC_BS);
 
@@ -710,6 +826,8 @@
 	}
 
 	ipu_smfc_write(ipu, temp, SMFC_BS);
+
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 }
 
 /*!
diff --git a/drivers/mxc/ipu3/ipu_common.c b/drivers/mxc/ipu3/ipu_common.c
index fb06f56..3e099d9 100644
--- a/drivers/mxc/ipu3/ipu_common.c
+++ b/drivers/mxc/ipu3/ipu_common.c
@@ -30,11 +30,11 @@
 #include <linux/irqdesc.h>
 #include <linux/ipu.h>
 #include <linux/clk.h>
+#include <linux/clkdev.h>
 #include <mach/clock.h>
 #include <mach/hardware.h>
+#include <mach/ipu-v3.h>
 #include <mach/devices-common.h>
-#include <asm/cacheflush.h>
-#include <linux/delay.h>
 
 #include "ipu_prv.h"
 #include "ipu_regs.h"
@@ -112,10 +112,156 @@
 	return 0;
 }
 
+static inline struct ipu_soc *pixelclk2ipu(struct clk *clk)
+{
+	struct ipu_soc *ipu;
+	struct clk *base = clk - clk->id;
+
+	ipu = container_of(base, struct ipu_soc, pixel_clk[0]);
+
+	return ipu;
+}
+
+static unsigned long _ipu_pixel_clk_get_rate(struct clk *clk)
+{
+	struct ipu_soc *ipu = pixelclk2ipu(clk);
+	u32 div = ipu_di_read(ipu, clk->id, DI_BS_CLKGEN0);
+	if (div == 0)
+		return 0;
+	return  (clk_get_rate(clk->parent) * 16) / div;
+}
+
+static unsigned long _ipu_pixel_clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	u32 div;
+	u32 parent_rate = clk_get_rate(clk->parent) * 16;
+	/*
+	 * Calculate divider
+	 * Fractional part is 4 bits,
+	 * so simply multiply by 2^4 to get fractional part.
+	 */
+	div = parent_rate / rate;
+
+	if (div < 0x10)            /* Min DI disp clock divider is 1 */
+		div = 0x10;
+	if (div & ~0xFEF)
+		div &= 0xFF8;
+	else {
+		/* Round up divider if it gets us closer to desired pix clk */
+		if ((div & 0xC) == 0xC) {
+			div += 0x10;
+			div &= ~0xF;
+		}
+	}
+	return parent_rate / div;
+}
+
+static int _ipu_pixel_clk_set_rate(struct clk *clk, unsigned long rate)
+{
+	struct ipu_soc *ipu = pixelclk2ipu(clk);
+	u32 div = (clk_get_rate(clk->parent) * 16) / rate;
+	unsigned long lock_flags;
+
+	/* Round up divider if it gets us closer to desired pix clk */
+	if ((div & 0xC) == 0xC) {
+		div += 0x10;
+		div &= ~0xF;
+	}
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
+	ipu_di_write(ipu, clk->id, div, DI_BS_CLKGEN0);
+
+	/* Setup pixel clock timing */
+	/* FIXME: needs to be more flexible */
+	/* Down time is half of period */
+	ipu_di_write(ipu, clk->id, (div / 16) << 16, DI_BS_CLKGEN1);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+
+	return 0;
+}
+
+static int _ipu_pixel_clk_enable(struct clk *clk)
+{
+	struct ipu_soc *ipu = pixelclk2ipu(clk);
+	u32 disp_gen = ipu_cm_read(ipu, IPU_DISP_GEN);
+	disp_gen |= clk->id ? DI1_COUNTER_RELEASE : DI0_COUNTER_RELEASE;
+	ipu_cm_write(ipu, disp_gen, IPU_DISP_GEN);
+
+	return 0;
+}
+
+static void _ipu_pixel_clk_disable(struct clk *clk)
+{
+	struct ipu_soc *ipu = pixelclk2ipu(clk);
+
+	u32 disp_gen = ipu_cm_read(ipu, IPU_DISP_GEN);
+	disp_gen &= clk->id ? ~DI1_COUNTER_RELEASE : ~DI0_COUNTER_RELEASE;
+	ipu_cm_write(ipu, disp_gen, IPU_DISP_GEN);
+}
+
+static int _ipu_pixel_clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	struct ipu_soc *ipu = pixelclk2ipu(clk);
+	unsigned long lock_flags;
+	u32 di_gen;
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
+	di_gen = ipu_di_read(ipu, clk->id, DI_GENERAL);
+	if (parent == ipu->ipu_clk)
+		di_gen &= ~DI_GEN_DI_CLK_EXT;
+	else if (!IS_ERR(ipu->di_clk[clk->id]) && parent == ipu->di_clk[clk->id])
+		di_gen |= DI_GEN_DI_CLK_EXT;
+	else {
+		spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+		return -EINVAL;
+	}
+
+	ipu_di_write(ipu, clk->id, di_gen, DI_GENERAL);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	return 0;
+}
+
+#ifdef CONFIG_CLK_DEBUG
+#define __INIT_CLK_DEBUG(n)	.name = #n,
+#else
+#define __INIT_CLK_DEBUG(n)
+#endif
 static int __devinit ipu_clk_setup_enable(struct ipu_soc *ipu,
 		struct platform_device *pdev)
 {
 	struct imx_ipuv3_platform_data *plat_data = pdev->dev.platform_data;
+	static struct clk ipu_pixel_clk[] = {
+		{
+			__INIT_CLK_DEBUG(pixel_clk_0)
+				.id = 0,
+			.get_rate = _ipu_pixel_clk_get_rate,
+			.set_rate = _ipu_pixel_clk_set_rate,
+			.round_rate = _ipu_pixel_clk_round_rate,
+			.set_parent = _ipu_pixel_clk_set_parent,
+			.enable = _ipu_pixel_clk_enable,
+			.disable = _ipu_pixel_clk_disable,
+		},
+		{
+			__INIT_CLK_DEBUG(pixel_clk_1)
+				.id = 1,
+			.get_rate = _ipu_pixel_clk_get_rate,
+			.set_rate = _ipu_pixel_clk_set_rate,
+			.round_rate = _ipu_pixel_clk_round_rate,
+			.set_parent = _ipu_pixel_clk_set_parent,
+			.enable = _ipu_pixel_clk_enable,
+			.disable = _ipu_pixel_clk_disable,
+		},
+	};
+	static struct clk_lookup ipu_lookups[] = {
+		{
+			.dev_id = NULL,
+			.con_id = "pixel_clk_0",
+		},
+		{
+			.dev_id = NULL,
+			.con_id = "pixel_clk_1",
+		},
+	};
 	char ipu_clk[] = "ipu1_clk";
 	char di0_clk[] = "ipu1_di0_clk";
 	char di1_clk[] = "ipu1_di1_clk";
@@ -156,6 +302,174 @@
 	return 0;
 }
 
+#if 0
+static void ipu_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
+	const int int_reg[] = { 1, 2, 3, 4, 11, 12, 13, 14, 15, 0 };
+	u32 status;
+	int i, line;
+
+	for (i = 0;; i++) {
+		if (int_reg[i] == 0)
+			break;
+
+		status = ipu_cm_read(ipu, IPU_INT_STAT(int_reg[i]));
+		status &= ipu_cm_read(ipu, IPU_INT_CTRL(int_reg[i]));
+
+		while ((line = ffs(status))) {
+			line--;
+			status &= ~(1UL << line);
+			line += ipu->irq_start + (int_reg[i] - 1) * 32;
+			generic_handle_irq(line);
+		}
+
+	}
+}
+
+static void ipu_err_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
+	const int int_reg[] = { 5, 6, 9, 10, 0 };
+	u32 status;
+	int i, line;
+
+	for (i = 0;; i++) {
+		if (int_reg[i] == 0)
+			break;
+
+		status = ipu_cm_read(ipu, IPU_INT_STAT(int_reg[i]));
+		status &= ipu_cm_read(ipu, IPU_INT_CTRL(int_reg[i]));
+
+		while ((line = ffs(status))) {
+			line--;
+			status &= ~(1UL << line);
+			line += ipu->irq_start + (int_reg[i] - 1) * 32;
+			generic_handle_irq(line);
+		}
+
+	}
+}
+
+static void ipu_ack_irq(struct irq_data *d)
+{
+	struct ipu_soc *ipu = irq_data_get_irq_chip_data(d);
+	unsigned int irq = d->irq - ipu->irq_start;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ipu->ipu_lock, flags);
+	ipu_cm_write(ipu, 1 << (irq % 32), IPU_INT_STAT(irq / 32 + 1));
+	spin_unlock_irqrestore(&ipu->ipu_lock, flags);
+}
+
+static void ipu_unmask_irq(struct irq_data *d)
+{
+	struct ipu_soc *ipu = irq_data_get_irq_chip_data(d);
+	unsigned int irq = d->irq - ipu->irq_start;
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&ipu->ipu_lock, flags);
+	reg = ipu_cm_read(ipu, IPU_INT_CTRL(irq / 32 + 1));
+	reg |= 1 << (irq % 32);
+	ipu_cm_write(ipu, reg, IPU_INT_CTRL(irq / 32 + 1));
+	spin_unlock_irqrestore(&ipu->ipu_lock, flags);
+}
+
+static void ipu_mask_irq(struct irq_data *d)
+{
+	struct ipu_soc *ipu = irq_data_get_irq_chip_data(d);
+	unsigned int irq = d->irq - ipu->irq_start;
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&ipu->ipu_lock, flags);
+	reg = ipu_cm_read(ipu, IPU_INT_CTRL(irq / 32 + 1));
+	reg &= ~(1 << (irq % 32));
+	ipu_cm_write(ipu, reg, IPU_INT_CTRL(irq / 32 + 1));
+	spin_unlock_irqrestore(&ipu->ipu_lock, flags);
+}
+
+static struct irq_chip ipu_irq_chip = {
+	.name = "IPU",
+	.irq_ack = ipu_ack_irq,
+	.irq_mask = ipu_mask_irq,
+	.irq_unmask = ipu_unmask_irq,
+};
+
+static void __devinit ipu_irq_setup(struct ipu_soc *ipu)
+{
+	int i;
+
+	for (i = ipu->irq_start; i < ipu->irq_start + MX5_IPU_IRQS; i++) {
+		irq_set_chip_and_handler(i, &ipu_irq_chip, handle_level_irq);
+		set_irq_flags(i, IRQF_VALID);
+		irq_set_chip_data(i, ipu);
+	}
+
+	irq_set_chained_handler(ipu->irq_sync, ipu_irq_handler);
+	irq_set_handler_data(ipu->irq_sync, ipu);
+	irq_set_chained_handler(ipu->irq_err, ipu_err_irq_handler);
+	irq_set_handler_data(ipu->irq_err, ipu);
+}
+
+int ipu_request_irq(struct ipu_soc *ipu, unsigned int irq,
+		irq_handler_t handler, unsigned long flags,
+		const char *name, void *dev)
+{
+	return request_irq(ipu->irq_start + irq, handler, flags, name, dev);
+}
+EXPORT_SYMBOL_GPL(ipu_request_irq);
+
+void ipu_enable_irq(struct ipu_soc *ipu, unsigned int irq)
+{
+	return enable_irq(ipu->irq_start + irq);
+}
+EXPORT_SYMBOL_GPL(ipu_disable_irq);
+
+void ipu_disable_irq(struct ipu_soc *ipu, unsigned int irq)
+{
+	return disable_irq(ipu->irq_start + irq);
+}
+EXPORT_SYMBOL_GPL(ipu_disable_irq);
+
+void ipu_free_irq(struct ipu_soc *ipu, unsigned int irq, void *dev_id)
+{
+	free_irq(ipu->irq_start + irq, dev_id);
+}
+EXPORT_SYMBOL_GPL(ipu_free_irq);
+
+static irqreturn_t ipu_completion_handler(int irq, void *dev)
+{
+	struct completion *completion = dev;
+
+	complete(completion);
+	return IRQ_HANDLED;
+}
+
+int ipu_wait_for_interrupt(struct ipu_soc *ipu, int interrupt, int timeout_ms)
+{
+	DECLARE_COMPLETION_ONSTACK(completion);
+	int ret;
+
+	ret = ipu_request_irq(ipu, interrupt, ipu_completion_handler,
+			0, NULL, &completion);
+	if (ret) {
+		dev_err(ipu->dev,
+			"ipu request irq %d fail\n", interrupt);
+		return ret;
+	}
+
+	ret = wait_for_completion_timeout(&completion,
+			msecs_to_jiffies(timeout_ms));
+
+	ipu_free_irq(ipu, interrupt, &completion);
+
+	return ret > 0 ? 0 : -ETIMEDOUT;
+}
+EXPORT_SYMBOL_GPL(ipu_wait_for_interrupt);
+#endif
+
 struct ipu_soc *ipu_get_soc(int id)
 {
 	if (id >= MXC_IPU_MAX_NUM)
@@ -163,29 +477,6 @@
 	else
 		return &(ipu_array[id]);
 }
-EXPORT_SYMBOL_GPL(ipu_get_soc);
-
-void _ipu_lock(struct ipu_soc *ipu, unsigned long *flags)
-{
-	spin_lock_irqsave(&ipu->spin_lock, *flags);
-}
-
-void _ipu_unlock(struct ipu_soc *ipu, unsigned long *flags)
-{
-	spin_unlock_irqrestore(&ipu->spin_lock, *flags);
-}
-
-void _ipu_get(struct ipu_soc *ipu)
-{
-	if (ipu->ipu_use_count++ == 0)
-		clk_enable(ipu->ipu_clk);
-}
-
-void _ipu_put(struct ipu_soc *ipu)
-{
-	if (--ipu->ipu_use_count == 0)
-		clk_disable(ipu->ipu_clk);
-}
 
 /*!
  * This function is called by the driver framework to initialize the IPU
@@ -210,8 +501,7 @@
 	ipu = &ipu_array[pdev->id];
 	memset(ipu, 0, sizeof(struct ipu_soc));
 
-	spin_lock_init(&ipu->spin_lock);
-	mutex_init(&ipu->mutex_lock);
+	spin_lock_init(&ipu->ipu_lock);
 
 	g_ipu_hw_rev = plat_data->rev;
 
@@ -448,12 +738,15 @@
 
 	dev_dbg(ipu->dev, "init channel = %d\n", IPU_CHAN_ID(channel));
 
-	_ipu_get(ipu);
+	if (ipu->clk_enabled == false) {
+		ipu->clk_enabled = true;
+		clk_enable(ipu->ipu_clk);
+	}
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	if (ipu->channel_init_mask & (1L << IPU_CHAN_ID(channel))) {
-		dev_warn(ipu->dev, "Warning: channel already initialized %d\n",
+		dev_err(ipu->dev, "Warning: channel already initialized %d\n",
 			IPU_CHAN_ID(channel));
 	}
 
@@ -703,7 +996,7 @@
 	ipu_cm_write(ipu, ipu_conf, IPU_CONF);
 
 err:
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	return ret;
 }
 EXPORT_SYMBOL(ipu_init_channel);
@@ -716,17 +1009,17 @@
  */
 void ipu_uninit_channel(struct ipu_soc *ipu, ipu_channel_t channel)
 {
+	unsigned long lock_flags;
 	uint32_t reg;
 	uint32_t in_dma, out_dma = 0;
 	uint32_t ipu_conf;
-	unsigned long lock_flags;
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	if ((ipu->channel_init_mask & (1L << IPU_CHAN_ID(channel))) == 0) {
 		dev_err(ipu->dev, "Channel already uninitialized %d\n",
 			IPU_CHAN_ID(channel));
-		_ipu_unlock(ipu, &lock_flags);
+		spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 		return;
 	}
 
@@ -740,7 +1033,7 @@
 		dev_err(ipu->dev,
 			"Channel %d is not disabled, disable first\n",
 			IPU_CHAN_ID(channel));
-		_ipu_unlock(ipu, &lock_flags);
+		spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 		return;
 	}
 
@@ -875,6 +1168,8 @@
 		break;
 	}
 
+	ipu->channel_init_mask &= ~(1L << IPU_CHAN_ID(channel));
+
 	if (ipu->ic_use_count == 0)
 		ipu_conf &= ~IPU_CONF_IC_EN;
 	if (ipu->vdi_use_count == 0) {
@@ -901,11 +1196,12 @@
 
 	ipu_cm_write(ipu, ipu_conf, IPU_CONF);
 
-	ipu->channel_init_mask &= ~(1L << IPU_CHAN_ID(channel));
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
-	_ipu_unlock(ipu, &lock_flags);
-
-	_ipu_put(ipu);
+	if (ipu_conf == 0) {
+		clk_disable(ipu->ipu_clk);
+		ipu->clk_enabled = false;
+	}
 
 	WARN_ON(ipu->ic_use_count < 0);
 	WARN_ON(ipu->vdi_use_count < 0);
@@ -971,10 +1267,10 @@
 				dma_addr_t phyaddr_2,
 				uint32_t u, uint32_t v)
 {
+	unsigned long lock_flags;
 	uint32_t reg;
 	uint32_t dma_chan;
 	uint32_t burst_size;
-	unsigned long lock_flags;
 
 	dma_chan = channel_2_dma(channel, type);
 	if (!idma_is_valid(dma_chan))
@@ -1007,8 +1303,6 @@
 		return -EINVAL;
 	}
 
-	_ipu_lock(ipu, &lock_flags);
-
 	/* Build parameter memory data for DMA channel */
 	_ipu_ch_param_init(ipu, dma_chan, pixel_fmt, width, height, stride, u, v, 0,
 			   phyaddr_0, phyaddr_1, phyaddr_2);
@@ -1041,8 +1335,10 @@
 		_ipu_ch_param_set_block_mode(ipu, dma_chan);
 	} else if (_ipu_is_dmfc_chan(dma_chan)) {
 		burst_size = _ipu_ch_param_get_burst_size(ipu, dma_chan);
+		spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 		_ipu_dmfc_set_wait4eot(ipu, dma_chan, width);
 		_ipu_dmfc_set_burst_size(ipu, dma_chan, burst_size);
+		spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	}
 
 	if (_ipu_disp_chan_is_interlaced(ipu, channel) ||
@@ -1064,81 +1360,13 @@
 		_ipu_smfc_set_burst_size(ipu, channel, burst_size-1);
 	}
 
-	/* AXI-id */
-	if (idma_is_set(ipu, IDMAC_CHA_PRI, dma_chan)) {
-		unsigned reg = IDMAC_CH_LOCK_EN_1;
-		uint32_t value = 0;
-		if (cpu_is_mx53()) {
-			_ipu_ch_param_set_axi_id(ipu, dma_chan, 0);
-			switch (dma_chan) {
-			case 5:
-				value = 0x3;
-				break;
-			case 11:
-				value = 0x3 << 2;
-				break;
-			case 12:
-				value = 0x3 << 4;
-				break;
-			case 14:
-				value = 0x3 << 6;
-				break;
-			case 15:
-				value = 0x3 << 8;
-				break;
-			case 20:
-				value = 0x3 << 10;
-				break;
-			case 21:
-				value = 0x3 << 12;
-				break;
-			case 22:
-				value = 0x3 << 14;
-				break;
-			case 23:
-				value = 0x3 << 16;
-				break;
-			case 27:
-				value = 0x3 << 18;
-				break;
-			case 28:
-				value = 0x3 << 20;
-				break;
-			case 45:
-				reg = IDMAC_CH_LOCK_EN_2;
-				value = 0x3 << 0;
-				break;
-			case 46:
-				reg = IDMAC_CH_LOCK_EN_2;
-				value = 0x3 << 2;
-				break;
-			case 47:
-				reg = IDMAC_CH_LOCK_EN_2;
-				value = 0x3 << 4;
-				break;
-			case 48:
-				reg = IDMAC_CH_LOCK_EN_2;
-				value = 0x3 << 6;
-				break;
-			case 49:
-				reg = IDMAC_CH_LOCK_EN_2;
-				value = 0x3 << 8;
-				break;
-			case 50:
-				reg = IDMAC_CH_LOCK_EN_2;
-				value = 0x3 << 10;
-				break;
-			default:
-				break;
-			}
-			value |= ipu_idmac_read(ipu, reg);
-			ipu_idmac_write(ipu, value, reg);
-		} else
-			_ipu_ch_param_set_axi_id(ipu, dma_chan, 1);
-	}
+	if (idma_is_set(ipu, IDMAC_CHA_PRI, dma_chan) && !cpu_is_mx53()
+		&& !cpu_is_mx6q())
+		_ipu_ch_param_set_high_priority(ipu, dma_chan);
 
 	_ipu_ch_param_dump(ipu, dma_chan);
 
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 	if (phyaddr_2 && g_ipu_hw_rev >= 2) {
 		reg = ipu_cm_read(ipu, IPU_CHA_DB_MODE_SEL(dma_chan));
 		reg &= ~idma_mask(dma_chan);
@@ -1174,8 +1402,7 @@
 				IPU_CHA_CUR_BUF(dma_chan));
 
 	}
-
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
 	return 0;
 }
@@ -1203,13 +1430,12 @@
 {
 	uint32_t reg;
 	int ret = 0;
-	uint32_t dma_chan = channel_2_dma(channel, type);
 	unsigned long lock_flags;
-
+	uint32_t dma_chan = channel_2_dma(channel, type);
 	if (dma_chan == IDMA_CHAN_INVALID)
 		return -EINVAL;
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	if (bufNum == 0)
 		reg = ipu_cm_read(ipu, IPU_CHA_BUF0_RDY(dma_chan));
@@ -1223,8 +1449,7 @@
 	else
 		ret = -EACCES;
 
-	_ipu_unlock(ipu, &lock_flags);
-
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	return ret;
 }
 EXPORT_SYMBOL(ipu_update_channel_buffer);
@@ -1275,13 +1500,13 @@
 				uint32_t vertical_offset, uint32_t horizontal_offset)
 {
 	int ret = 0;
-	uint32_t dma_chan = channel_2_dma(channel, type);
 	unsigned long lock_flags;
+	uint32_t dma_chan = channel_2_dma(channel, type);
 
 	if (dma_chan == IDMA_CHAN_INVALID)
 		return -EINVAL;
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	if ((ipu_cm_read(ipu, IPU_CHA_BUF0_RDY(dma_chan)) & idma_mask(dma_chan)) ||
 	    (ipu_cm_read(ipu, IPU_CHA_BUF1_RDY(dma_chan)) & idma_mask(dma_chan)) ||
@@ -1293,7 +1518,7 @@
 		_ipu_ch_offset_update(ipu, dma_chan, pixel_fmt, width, height, stride,
 				      u, v, 0, vertical_offset, horizontal_offset);
 
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	return ret;
 }
 EXPORT_SYMBOL(ipu_update_channel_offset);
@@ -1322,7 +1547,7 @@
 		return -EINVAL;
 
 	/* Mark buffer to be ready. */
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 	if (bufNum == 0)
 		ipu_cm_write(ipu, idma_mask(dma_chan),
 			     IPU_CHA_BUF0_RDY(dma_chan));
@@ -1332,7 +1557,7 @@
 	else
 		ipu_cm_write(ipu, idma_mask(dma_chan),
 			     IPU_CHA_BUF2_RDY(dma_chan));
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	return 0;
 }
 EXPORT_SYMBOL(ipu_select_buffer);
@@ -1357,12 +1582,12 @@
 	unsigned long lock_flags;
 
 	/* Mark buffers to be ready. */
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 	if (bufNum == 0)
 		ipu_cm_write(ipu, mask_bit, IPU_CHA_BUF0_RDY(dma_chan));
 	else
 		ipu_cm_write(ipu, mask_bit, IPU_CHA_BUF1_RDY(dma_chan));
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	return 0;
 }
 EXPORT_SYMBOL(ipu_select_multi_vdi_buffer);
@@ -1395,13 +1620,13 @@
 int32_t ipu_link_channels(struct ipu_soc *ipu, ipu_channel_t src_ch, ipu_channel_t dest_ch)
 {
 	int retval = 0;
+	unsigned long lock_flags;
 	uint32_t fs_proc_flow1;
 	uint32_t fs_proc_flow2;
 	uint32_t fs_proc_flow3;
 	uint32_t fs_disp_flow1;
-	unsigned long lock_flags;
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	fs_proc_flow1 = ipu_cm_read(ipu, IPU_FS_PROC_FLOW1);
 	fs_proc_flow2 = ipu_cm_read(ipu, IPU_FS_PROC_FLOW2);
@@ -1576,7 +1801,7 @@
 	ipu_cm_write(ipu, fs_disp_flow1, IPU_FS_DISP_FLOW1);
 
 err:
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	return retval;
 }
 EXPORT_SYMBOL(ipu_link_channels);
@@ -1598,13 +1823,13 @@
 int32_t ipu_unlink_channels(struct ipu_soc *ipu, ipu_channel_t src_ch, ipu_channel_t dest_ch)
 {
 	int retval = 0;
+	unsigned long lock_flags;
 	uint32_t fs_proc_flow1;
 	uint32_t fs_proc_flow2;
 	uint32_t fs_proc_flow3;
 	uint32_t fs_disp_flow1;
-	unsigned long lock_flags;
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	fs_proc_flow1 = ipu_cm_read(ipu, IPU_FS_PROC_FLOW1);
 	fs_proc_flow2 = ipu_cm_read(ipu, IPU_FS_PROC_FLOW2);
@@ -1707,7 +1932,7 @@
 	ipu_cm_write(ipu, fs_disp_flow1, IPU_FS_DISP_FLOW1);
 
 err:
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	return retval;
 }
 EXPORT_SYMBOL(ipu_unlink_channels);
@@ -1752,19 +1977,19 @@
 int32_t ipu_enable_channel(struct ipu_soc *ipu, ipu_channel_t channel)
 {
 	uint32_t reg;
+	unsigned long lock_flags;
 	uint32_t ipu_conf;
 	uint32_t in_dma;
 	uint32_t out_dma;
 	uint32_t sec_dma;
 	uint32_t thrd_dma;
-	unsigned long lock_flags;
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	if (ipu->channel_enable_mask & (1L << IPU_CHAN_ID(channel))) {
 		dev_err(ipu->dev, "Warning: channel already enabled %d\n",
 			IPU_CHAN_ID(channel));
-		_ipu_unlock(ipu, &lock_flags);
+		spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 		return -EACCES;
 	}
 
@@ -1846,7 +2071,7 @@
 
 	ipu->channel_enable_mask |= 1L << IPU_CHAN_ID(channel);
 
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
 	return 0;
 }
@@ -1899,14 +2124,16 @@
  * 				ready state.
  *
  */
-void _ipu_clear_buffer_ready(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
+void ipu_clear_buffer_ready(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
 		uint32_t bufNum)
 {
+	unsigned long lock_flags;
 	uint32_t dma_ch = channel_2_dma(channel, type);
 
 	if (!idma_is_valid(dma_ch))
 		return;
 
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 	ipu_cm_write(ipu, 0xF0300000, IPU_GPR); /* write one to clear */
 	if (bufNum == 0)
 		ipu_cm_write(ipu, idma_mask(dma_ch),
@@ -1918,18 +2145,18 @@
 		ipu_cm_write(ipu, idma_mask(dma_ch),
 				IPU_CHA_BUF2_RDY(dma_ch));
 	ipu_cm_write(ipu, 0x0, IPU_GPR); /* write one to set */
-}
-
-void ipu_clear_buffer_ready(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
-		uint32_t bufNum)
-{
-	unsigned long lock_flags;
-	_ipu_lock(ipu, &lock_flags);
-	_ipu_clear_buffer_ready(ipu, channel, type, bufNum);
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 }
 EXPORT_SYMBOL(ipu_clear_buffer_ready);
 
+static irqreturn_t disable_chan_irq_handler(int irq, void *dev_id)
+{
+	struct completion *comp = dev_id;
+
+	complete(comp);
+	return IRQ_HANDLED;
+}
+
 /*!
  * This function disables a logical channel.
  *
@@ -1945,22 +2172,24 @@
 int32_t ipu_disable_channel(struct ipu_soc *ipu, ipu_channel_t channel, bool wait_for_stop)
 {
 	uint32_t reg;
+	unsigned long lock_flags;
 	uint32_t in_dma;
 	uint32_t out_dma;
 	uint32_t sec_dma = NO_DMA;
 	uint32_t thrd_dma = NO_DMA;
 	uint16_t fg_pos_x, fg_pos_y;
-	unsigned long lock_flags;
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	if ((ipu->channel_enable_mask & (1L << IPU_CHAN_ID(channel))) == 0) {
 		dev_err(ipu->dev, "Channel already disabled %d\n",
 			IPU_CHAN_ID(channel));
-		_ipu_unlock(ipu, &lock_flags);
+		spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 		return -EACCES;
 	}
 
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+
 	/* Get input and output dma channels */
 	out_dma = channel_2_dma(channel, IPU_OUTPUT_BUFFER);
 	in_dma = channel_2_dma(channel, IPU_VIDEO_IN_BUFFER);
@@ -1968,10 +2197,8 @@
 	if ((idma_is_valid(in_dma) &&
 		!idma_is_set(ipu, IDMAC_CHA_EN, in_dma))
 		&& (idma_is_valid(out_dma) &&
-		!idma_is_set(ipu, IDMAC_CHA_EN, out_dma))) {
-		_ipu_unlock(ipu, &lock_flags);
+		!idma_is_set(ipu, IDMAC_CHA_EN, out_dma)))
 		return -EINVAL;
-	}
 
 	if (ipu->sec_chan_en[IPU_CHAN_ID(channel)])
 		sec_dma = channel_2_dma(channel, IPU_GRAPH_IN_BUFFER);
@@ -1980,12 +2207,11 @@
 		thrd_dma = channel_2_dma(channel, IPU_ALPHA_IN_BUFFER);
 	}
 
-	_ipu_unlock(ipu, &lock_flags);
 	if ((channel == MEM_BG_SYNC) || (channel == MEM_FG_SYNC) ||
 	    (channel == MEM_DC_SYNC)) {
 		if (channel == MEM_FG_SYNC) {
-			_ipu_disp_get_window_pos(ipu, channel, &fg_pos_x, &fg_pos_y);
-			_ipu_disp_set_window_pos(ipu, channel, 0, 0);
+			ipu_disp_get_window_pos(ipu, channel, &fg_pos_x, &fg_pos_y);
+			ipu_disp_set_window_pos(ipu, channel, 0, 0);
 		}
 
 		_ipu_dp_dc_disable(ipu, channel, false);
@@ -2016,9 +2242,8 @@
 			idma_is_set(ipu, IDMAC_CHA_BUSY, sec_dma)) ||
 			(ipu->thrd_chan_en[IPU_CHAN_ID(channel)] &&
 			idma_is_set(ipu, IDMAC_CHA_BUSY, thrd_dma))) {
-			uint32_t irq = 0xffffffff;
+			uint32_t ret, irq = 0xffffffff;
 			DECLARE_COMPLETION_ONSTACK(disable_comp);
-			int timeout = 50;
 
 			if (idma_is_set(ipu, IDMAC_CHA_BUSY, out_dma))
 				irq = out_dma;
@@ -2038,22 +2263,23 @@
 
 			dev_err(ipu->dev, "warning: channel %d busy, need wait\n", irq);
 
-			ipu_cm_write(ipu, IPUIRQ_2_MASK(irq),
-					IPUIRQ_2_STATREG(irq));
-			while ((ipu_cm_read(ipu, IPUIRQ_2_STATREG(irq)) &
-						IPUIRQ_2_MASK(irq)) == 0) {
-				msleep(10);
-				timeout -= 10;
-				if (timeout <= 0) {
+			ret = ipu_request_irq(ipu, irq, disable_chan_irq_handler, 0, NULL, &disable_comp);
+			if (ret < 0) {
+				dev_err(ipu->dev, "irq %d in use\n", irq);
+				break;
+			} else {
+				ret = wait_for_completion_timeout(&disable_comp, msecs_to_jiffies(200));
+				ipu_free_irq(ipu, irq, &disable_comp);
+				if (ret == 0) {
 					ipu_dump_registers(ipu);
 					dev_err(ipu->dev, "warning: disable ipu dma channel %d during its busy state\n", irq);
 					break;
 				}
 			}
-
 		}
 	}
-	_ipu_lock(ipu, &lock_flags);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	if ((channel == MEM_BG_SYNC) || (channel == MEM_FG_SYNC) ||
 	    (channel == MEM_DC_SYNC)) {
@@ -2101,29 +2327,29 @@
 
 	ipu->channel_enable_mask &= ~(1L << IPU_CHAN_ID(channel));
 
-	if (channel == MEM_FG_SYNC)
-		_ipu_disp_set_window_pos(ipu, channel, fg_pos_x, fg_pos_y);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
 	/* Set channel buffers NOT to be ready */
 	if (idma_is_valid(in_dma)) {
-		_ipu_clear_buffer_ready(ipu, channel, IPU_VIDEO_IN_BUFFER, 0);
-		_ipu_clear_buffer_ready(ipu, channel, IPU_VIDEO_IN_BUFFER, 1);
-		_ipu_clear_buffer_ready(ipu, channel, IPU_VIDEO_IN_BUFFER, 2);
+		ipu_clear_buffer_ready(ipu, channel, IPU_VIDEO_IN_BUFFER, 0);
+		ipu_clear_buffer_ready(ipu, channel, IPU_VIDEO_IN_BUFFER, 1);
+		ipu_clear_buffer_ready(ipu, channel, IPU_VIDEO_IN_BUFFER, 2);
 	}
 	if (idma_is_valid(out_dma)) {
-		_ipu_clear_buffer_ready(ipu, channel, IPU_OUTPUT_BUFFER, 0);
-		_ipu_clear_buffer_ready(ipu, channel, IPU_OUTPUT_BUFFER, 1);
+		ipu_clear_buffer_ready(ipu, channel, IPU_OUTPUT_BUFFER, 0);
+		ipu_clear_buffer_ready(ipu, channel, IPU_OUTPUT_BUFFER, 1);
 	}
 	if (ipu->sec_chan_en[IPU_CHAN_ID(channel)] && idma_is_valid(sec_dma)) {
-		_ipu_clear_buffer_ready(ipu, channel, IPU_GRAPH_IN_BUFFER, 0);
-		_ipu_clear_buffer_ready(ipu, channel, IPU_GRAPH_IN_BUFFER, 1);
+		ipu_clear_buffer_ready(ipu, channel, IPU_GRAPH_IN_BUFFER, 0);
+		ipu_clear_buffer_ready(ipu, channel, IPU_GRAPH_IN_BUFFER, 1);
 	}
 	if (ipu->thrd_chan_en[IPU_CHAN_ID(channel)] && idma_is_valid(thrd_dma)) {
-		_ipu_clear_buffer_ready(ipu, channel, IPU_ALPHA_IN_BUFFER, 0);
-		_ipu_clear_buffer_ready(ipu, channel, IPU_ALPHA_IN_BUFFER, 1);
+		ipu_clear_buffer_ready(ipu, channel, IPU_ALPHA_IN_BUFFER, 0);
+		ipu_clear_buffer_ready(ipu, channel, IPU_ALPHA_IN_BUFFER, 1);
 	}
 
-	_ipu_unlock(ipu, &lock_flags);
+	if (channel == MEM_FG_SYNC)
+		ipu_disp_set_window_pos(ipu, channel, fg_pos_x, fg_pos_y);
 
 	return 0;
 }
@@ -2148,7 +2374,7 @@
 		return -EINVAL;
 	}
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 	ipu->csi_use_count[csi]++;
 
 	if (ipu->csi_use_count[csi] == 1) {
@@ -2158,7 +2384,7 @@
 		else
 			ipu_cm_write(ipu, reg | IPU_CONF_CSI1_EN, IPU_CONF);
 	}
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	return 0;
 }
 EXPORT_SYMBOL(ipu_enable_csi);
@@ -2182,8 +2408,9 @@
 		return -EINVAL;
 	}
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 	ipu->csi_use_count[csi]--;
+
 	if (ipu->csi_use_count[csi] == 0) {
 		reg = ipu_cm_read(ipu, IPU_CONF);
 		if (csi == 0)
@@ -2191,7 +2418,7 @@
 		else
 			ipu_cm_write(ipu, reg & ~IPU_CONF_CSI1_EN, IPU_CONF);
 	}
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	return 0;
 }
 EXPORT_SYMBOL(ipu_disable_csi);
@@ -2256,17 +2483,18 @@
 	uint32_t reg;
 	unsigned long lock_flags;
 
-	_ipu_get(ipu);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
 
-	spin_lock_irqsave(&ipu->spin_lock, lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	reg = ipu_cm_read(ipu, IPUIRQ_2_CTRLREG(irq));
 	reg |= IPUIRQ_2_MASK(irq);
 	ipu_cm_write(ipu, reg, IPUIRQ_2_CTRLREG(irq));
 
-	spin_unlock_irqrestore(&ipu->spin_lock, lock_flags);
-
-	_ipu_put(ipu);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 EXPORT_SYMBOL(ipu_enable_irq);
 
@@ -2283,17 +2511,18 @@
 	uint32_t reg;
 	unsigned long lock_flags;
 
-	_ipu_get(ipu);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
 
-	spin_lock_irqsave(&ipu->spin_lock, lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	reg = ipu_cm_read(ipu, IPUIRQ_2_CTRLREG(irq));
 	reg &= ~IPUIRQ_2_MASK(irq);
 	ipu_cm_write(ipu, reg, IPUIRQ_2_CTRLREG(irq));
 
-	spin_unlock_irqrestore(&ipu->spin_lock, lock_flags);
-
-	_ipu_put(ipu);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 EXPORT_SYMBOL(ipu_disable_irq);
 
@@ -2307,11 +2536,13 @@
  */
 void ipu_clear_irq(struct ipu_soc *ipu, uint32_t irq)
 {
-	_ipu_get(ipu);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
 
 	ipu_cm_write(ipu, IPUIRQ_2_MASK(irq), IPUIRQ_2_STATREG(irq));
 
-	_ipu_put(ipu);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 }
 EXPORT_SYMBOL(ipu_clear_irq);
 
@@ -2329,11 +2560,13 @@
 {
 	uint32_t reg;
 
-	_ipu_get(ipu);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
 
 	reg = ipu_cm_read(ipu, IPUIRQ_2_STATREG(irq));
 
-	_ipu_put(ipu);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 
 	if (reg & IPUIRQ_2_MASK(irq))
 		return true;
@@ -2371,12 +2604,12 @@
 
 	BUG_ON(irq >= IPU_IRQ_COUNT);
 
-	spin_lock_irqsave(&ipu->spin_lock, lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	if (ipu->irq_list[irq].handler != NULL) {
 		dev_err(ipu->dev,
 			"handler already installed on irq %d\n", irq);
-		spin_unlock_irqrestore(&ipu->spin_lock, lock_flags);
+		spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 		return -EINVAL;
 	}
 
@@ -2385,7 +2618,7 @@
 	ipu->irq_list[irq].dev_id = dev_id;
 	ipu->irq_list[irq].name = devname;
 
-	spin_unlock_irqrestore(&ipu->spin_lock, lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
 	ipu_enable_irq(ipu, irq);	/* enable the interrupt */
 
@@ -2484,20 +2717,22 @@
 	int from_dma = channel_2_dma(from_ch, IPU_INPUT_BUFFER);
 	int to_dma = channel_2_dma(to_ch, IPU_INPUT_BUFFER);
 
-	_ipu_lock(ipu, &lock_flags);
-
 	/* enable target channel */
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
+
 	reg = ipu_idmac_read(ipu, IDMAC_CHA_EN(to_dma));
 	ipu_idmac_write(ipu, reg | idma_mask(to_dma), IDMAC_CHA_EN(to_dma));
 
 	ipu->channel_enable_mask |= 1L << IPU_CHAN_ID(to_ch);
 
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+
 	/* switch dp dc */
-	_ipu_unlock(ipu, &lock_flags);
 	_ipu_dp_dc_disable(ipu, from_ch, true);
-	_ipu_lock(ipu, &lock_flags);
 
 	/* disable source channel */
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
+
 	reg = ipu_idmac_read(ipu, IDMAC_CHA_EN(from_dma));
 	ipu_idmac_write(ipu, reg & ~idma_mask(from_dma), IDMAC_CHA_EN(from_dma));
 	ipu_cm_write(ipu, idma_mask(from_dma), IPU_CHA_CUR_BUF(from_dma));
@@ -2506,11 +2741,11 @@
 
 	ipu->channel_enable_mask &= ~(1L << IPU_CHAN_ID(from_ch));
 
-	_ipu_clear_buffer_ready(ipu, from_ch, IPU_VIDEO_IN_BUFFER, 0);
-	_ipu_clear_buffer_ready(ipu, from_ch, IPU_VIDEO_IN_BUFFER, 1);
-	_ipu_clear_buffer_ready(ipu, from_ch, IPU_VIDEO_IN_BUFFER, 2);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
-	_ipu_unlock(ipu, &lock_flags);
+	ipu_clear_buffer_ready(ipu, from_ch, IPU_VIDEO_IN_BUFFER, 0);
+	ipu_clear_buffer_ready(ipu, from_ch, IPU_VIDEO_IN_BUFFER, 1);
+	ipu_clear_buffer_ready(ipu, from_ch, IPU_VIDEO_IN_BUFFER, 2);
 
 	return 0;
 }
@@ -2591,6 +2826,12 @@
 	return false;
 }
 
+void ipu_set_csc_coefficients(struct ipu_soc *ipu, ipu_channel_t channel, int32_t param[][3])
+{
+	_ipu_dp_set_csc_coefficients(ipu, channel, param);
+}
+EXPORT_SYMBOL(ipu_set_csc_coefficients);
+
 static int ipu_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct imx_ipuv3_platform_data *plat_data = pdev->dev.platform_data;
diff --git a/drivers/mxc/ipu3/ipu_disp.c b/drivers/mxc/ipu3/ipu_disp.c
index 9867d57..12e36e2 100644
--- a/drivers/mxc/ipu3/ipu_disp.c
+++ b/drivers/mxc/ipu3/ipu_disp.c
@@ -26,7 +26,6 @@
 #include <linux/io.h>
 #include <linux/ipu.h>
 #include <linux/clk.h>
-#include <linux/err.h>
 #include <asm/atomic.h>
 #include <mach/clock.h>
 #include "ipu_prv.h"
@@ -46,141 +45,6 @@
 #define DC_DISP_ID_SERIAL	2
 #define DC_DISP_ID_ASYNC	3
 
-static inline struct ipu_soc *pixelclk2ipu(struct clk *clk)
-{
-	struct ipu_soc *ipu;
-	struct clk *base = clk - clk->id;
-
-	ipu = container_of(base, struct ipu_soc, pixel_clk[0]);
-
-	return ipu;
-}
-
-static unsigned long _ipu_pixel_clk_get_rate(struct clk *clk)
-{
-	struct ipu_soc *ipu = pixelclk2ipu(clk);
-	u32 div = ipu_di_read(ipu, clk->id, DI_BS_CLKGEN0);
-	if (div == 0)
-		return 0;
-	return  (clk_get_rate(clk->parent) * 16) / div;
-}
-
-static unsigned long _ipu_pixel_clk_round_rate(struct clk *clk, unsigned long rate)
-{
-	u32 div, div1;
-	u32 parent_rate = clk_get_rate(clk->parent) * 16;
-	/*
-	 * Calculate divider
-	 * Fractional part is 4 bits,
-	 * so simply multiply by 2^4 to get fractional part.
-	 */
-	div = parent_rate / rate;
-
-	if (div < 0x10)            /* Min DI disp clock divider is 1 */
-		div = 0x10;
-	if (div & ~0xFEF)
-		div &= 0xFF8;
-	else {
-		div1 = div & 0xFE0;
-		if ((parent_rate / div1 - parent_rate / div) < rate / 4)
-			div = div1;
-		else
-			div &= 0xFF8;
-	}
-	return parent_rate / div;
-}
-
-static int _ipu_pixel_clk_set_rate(struct clk *clk, unsigned long rate)
-{
-	struct ipu_soc *ipu = pixelclk2ipu(clk);
-	u32 div = (clk_get_rate(clk->parent) * 16) / rate;
-
-	ipu_di_write(ipu, clk->id, div, DI_BS_CLKGEN0);
-
-	/* Setup pixel clock timing */
-	/* FIXME: needs to be more flexible */
-	/* Down time is half of period */
-	ipu_di_write(ipu, clk->id, (div / 16) << 16, DI_BS_CLKGEN1);
-
-	return 0;
-}
-
-static int _ipu_pixel_clk_enable(struct clk *clk)
-{
-	struct ipu_soc *ipu = pixelclk2ipu(clk);
-	u32 disp_gen = ipu_cm_read(ipu, IPU_DISP_GEN);
-	disp_gen |= clk->id ? DI1_COUNTER_RELEASE : DI0_COUNTER_RELEASE;
-	ipu_cm_write(ipu, disp_gen, IPU_DISP_GEN);
-
-	return 0;
-}
-
-static void _ipu_pixel_clk_disable(struct clk *clk)
-{
-	struct ipu_soc *ipu = pixelclk2ipu(clk);
-
-	u32 disp_gen = ipu_cm_read(ipu, IPU_DISP_GEN);
-	disp_gen &= clk->id ? ~DI1_COUNTER_RELEASE : ~DI0_COUNTER_RELEASE;
-	ipu_cm_write(ipu, disp_gen, IPU_DISP_GEN);
-}
-
-static int _ipu_pixel_clk_set_parent(struct clk *clk, struct clk *parent)
-{
-	struct ipu_soc *ipu = pixelclk2ipu(clk);
-	u32 di_gen;
-
-	di_gen = ipu_di_read(ipu, clk->id, DI_GENERAL);
-	if (parent == ipu->ipu_clk)
-		di_gen &= ~DI_GEN_DI_CLK_EXT;
-	else if (!IS_ERR(ipu->di_clk[clk->id]) && parent == ipu->di_clk[clk->id])
-		di_gen |= DI_GEN_DI_CLK_EXT;
-	else {
-		return -EINVAL;
-	}
-
-	ipu_di_write(ipu, clk->id, di_gen, DI_GENERAL);
-	return 0;
-}
-
-#ifdef CONFIG_CLK_DEBUG
-#define __INIT_CLK_DEBUG(n)    .name = #n,
-#else
-#define __INIT_CLK_DEBUG(n)
-#endif
-struct clk ipu_pixel_clk[] = {
-	{
-		__INIT_CLK_DEBUG(pixel_clk_0)
-			.id = 0,
-		.get_rate = _ipu_pixel_clk_get_rate,
-		.set_rate = _ipu_pixel_clk_set_rate,
-		.round_rate = _ipu_pixel_clk_round_rate,
-		.set_parent = _ipu_pixel_clk_set_parent,
-		.enable = _ipu_pixel_clk_enable,
-		.disable = _ipu_pixel_clk_disable,
-	},
-	{
-		__INIT_CLK_DEBUG(pixel_clk_1)
-			.id = 1,
-		.get_rate = _ipu_pixel_clk_get_rate,
-		.set_rate = _ipu_pixel_clk_set_rate,
-		.round_rate = _ipu_pixel_clk_round_rate,
-		.set_parent = _ipu_pixel_clk_set_parent,
-		.enable = _ipu_pixel_clk_enable,
-		.disable = _ipu_pixel_clk_disable,
-	},
-};
-
-struct clk_lookup ipu_lookups[] = {
-	{
-		.dev_id = NULL,
-		.con_id = "pixel_clk_0",
-	},
-	{
-		.dev_id = NULL,
-		.con_id = "pixel_clk_1",
-	},
-};
-
 int dmfc_type_setup;
 
 void _ipu_dmfc_init(struct ipu_soc *ipu, int dmfc_type, int first)
@@ -900,6 +764,7 @@
 void _ipu_dp_dc_disable(struct ipu_soc *ipu, ipu_channel_t channel, bool swap)
 {
 	int ret;
+	unsigned long lock_flags;
 	uint32_t reg;
 	uint32_t csc;
 	uint32_t dc_chan;
@@ -918,6 +783,8 @@
 		/* Disable FG channel */
 		dc_chan = 5;
 
+		spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
+
 		reg = ipu_dp_read(ipu, DP_COM_CONF(DP_SYNC));
 		csc = reg & DP_COM_CONF_CSC_DEF_MASK;
 		if (csc == DP_COM_CONF_CSC_DEF_FG)
@@ -929,6 +796,8 @@
 		reg = ipu_cm_read(ipu, IPU_SRM_PRI2) | 0x8;
 		ipu_cm_write(ipu, reg, IPU_SRM_PRI2);
 
+		spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+
 		ipu_cm_write(ipu, IPUIRQ_2_MASK(IPU_IRQ_DP_SF_END),
 			     IPUIRQ_2_STATREG(IPU_IRQ_DP_SF_END));
 		while ((ipu_cm_read(ipu, IPUIRQ_2_STATREG(IPU_IRQ_DP_SF_END)) &
@@ -955,12 +824,14 @@
 	dev_dbg(ipu->dev, "DC stop timeout - %d * 10ms\n", 5 - ret);
 
 	if (ipu->dc_swap) {
+		spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 		/* Swap DC channel 1 and 5 settings, and disable old dc chan */
 		reg = ipu_dc_read(ipu, DC_WR_CH_CONF(dc_chan));
 		ipu_dc_write(ipu, reg, DC_WR_CH_CONF(6 - dc_chan));
 		reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
 		reg ^= DC_WR_CH_CONF_PROG_DI_ID;
 		ipu_dc_write(ipu, reg, DC_WR_CH_CONF(dc_chan));
+		spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	} else
 		/* Clock is already off because it must be done quickly, but
 		   we need to fix the ref count */
@@ -1100,12 +971,6 @@
 	__ipu_dp_csc_setup(ipu, dp, dp_csc_param, true);
 }
 
-void ipu_set_csc_coefficients(struct ipu_soc *ipu, ipu_channel_t channel, int32_t param[][3])
-{
-	_ipu_dp_set_csc_coefficients(ipu, channel, param);
-}
-EXPORT_SYMBOL(ipu_set_csc_coefficients);
-
 /*!
  * This function is called to adapt synchronous LCD panel to IPU restriction.
  *
@@ -1173,6 +1038,7 @@
 			    uint16_t v_sync_width, uint16_t v_end_width,
 			    uint32_t v_to_h_sync, ipu_di_signal_cfg_t sig)
 {
+	unsigned long lock_flags;
 	uint32_t field0_offset = 0;
 	uint32_t field1_offset;
 	uint32_t reg;
@@ -1181,7 +1047,6 @@
 	uint32_t h_total, v_total;
 	int map;
 	struct clk *di_parent;
-	unsigned long lock_flags;
 
 	dev_dbg(ipu->dev, "panel size = %d x %d\n", width, height);
 
@@ -1243,7 +1108,7 @@
 	/* Get integer portion of divider */
 	div = clk_get_rate(clk_get_parent(&ipu->pixel_clk[disp])) / rounded_pixel_clk;
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	_ipu_di_data_wave_config(ipu, disp, SYNC_WAVE, div - 1, div - 1);
 	_ipu_di_data_pin_config(ipu, disp, SYNC_WAVE, DI_PIN15, 3, 0, div * 2);
@@ -1251,7 +1116,7 @@
 	map = _ipu_pixfmt_to_map(pixel_fmt);
 	if (map < 0) {
 		dev_dbg(ipu->dev, "IPU_DISP: No MAP\n");
-		_ipu_unlock(ipu, &lock_flags);
+		spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 		return -EINVAL;
 	}
 
@@ -1638,7 +1503,7 @@
 
 	ipu_dc_write(ipu, width, DC_DISP_CONF2(DC_DISP_ID_SYNC(disp)));
 
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 
 	return 0;
 }
@@ -1646,14 +1511,14 @@
 
 void ipu_uninit_sync_panel(struct ipu_soc *ipu, int disp)
 {
+	unsigned long lock_flags;
 	uint32_t reg;
 	uint32_t di_gen;
-	unsigned long lock_flags;
 
 	if ((disp != 0) || (disp != 1))
 		return;
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	di_gen = ipu_di_read(ipu, disp, DI_GENERAL);
 	di_gen |= 0x3ff | DI_GEN_POLARITY_DISP_CLK;
@@ -1663,18 +1528,18 @@
 	reg |= 0x3ffffff;
 	ipu_di_write(ipu, disp, reg, DI_POL);
 
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 }
 EXPORT_SYMBOL(ipu_uninit_sync_panel);
 
 int ipu_init_async_panel(struct ipu_soc *ipu, int disp, int type, uint32_t cycle_time,
 			 uint32_t pixel_fmt, ipu_adc_sig_cfg_t sig)
 {
+	unsigned long lock_flags;
 	int map;
 	u32 ser_conf = 0;
 	u32 div;
 	u32 di_clk = clk_get_rate(ipu->ipu_clk);
-	unsigned long lock_flags;
 
 	/* round up cycle_time, then calcalate the divider using scaled math */
 	cycle_time += (1000000000UL / di_clk) - 1;
@@ -1684,7 +1549,7 @@
 	if (map < 0)
 		return -EINVAL;
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	if (type == IPU_PANEL_SERIAL) {
 		ipu_di_write(ipu, disp, (div << 24) | ((sig.ifc_width - 1) << 4),
@@ -1713,7 +1578,7 @@
 		ipu_di_write(ipu, disp, ser_conf, DI_SER_CONF);
 	}
 
-	_ipu_unlock(ipu, &lock_flags);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
 	return 0;
 }
 EXPORT_SYMBOL(ipu_init_async_panel);
@@ -1738,8 +1603,8 @@
 {
 	uint32_t reg;
 	uint32_t flow;
-	bool bg_chan;
 	unsigned long lock_flags;
+	bool bg_chan;
 
 	if (channel == MEM_BG_SYNC || channel == MEM_FG_SYNC)
 		flow = DP_SYNC;
@@ -1756,9 +1621,9 @@
 	else
 		bg_chan = false;
 
-	_ipu_get(ipu);
-
-	_ipu_lock(ipu, &lock_flags);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	if (bg_chan) {
 		reg = ipu_dp_read(ipu, DP_COM_CONF(flow));
@@ -1783,9 +1648,9 @@
 	reg = ipu_cm_read(ipu, IPU_SRM_PRI2) | 0x8;
 	ipu_cm_write(ipu, reg, IPU_SRM_PRI2);
 
-	_ipu_unlock(ipu, &lock_flags);
-
-	_ipu_put(ipu);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 
 	return 0;
 }
@@ -1820,9 +1685,10 @@
 	else
 		return -EINVAL;
 
-	_ipu_get(ipu);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
 
-	_ipu_lock(ipu, &lock_flags);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	ipu->color_key_4rgb = true;
 	/* Transform color key from rgb to yuv if CSC is enabled */
@@ -1861,9 +1727,9 @@
 	reg = ipu_cm_read(ipu, IPU_SRM_PRI2) | 0x8;
 	ipu_cm_write(ipu, reg, IPU_SRM_PRI2);
 
-	_ipu_unlock(ipu, &lock_flags);
-
-	_ipu_put(ipu);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 
 	return 0;
 }
@@ -1897,9 +1763,9 @@
 	else
 		return -EINVAL;
 
-	_ipu_get(ipu);
-
-	_ipu_lock(ipu, &lock_flags);
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
 
 	for (i = 0; i < 8; i++)
 		ipu_dp_write(ipu, (constk[2*i] & 0x1ff) | ((constk[2*i+1] & 0x1ff) << 16), DP_GAMMA_C(flow, i));
@@ -1920,9 +1786,9 @@
 	reg = ipu_cm_read(ipu, IPU_SRM_PRI2) | 0x8;
 	ipu_cm_write(ipu, reg, IPU_SRM_PRI2);
 
-	_ipu_unlock(ipu, &lock_flags);
-
-	_ipu_put(ipu);
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 
 	return 0;
 }
@@ -1943,10 +1809,11 @@
  *
  * @return      Returns 0 on success or negative error code on fail
  */
-int32_t _ipu_disp_set_window_pos(struct ipu_soc *ipu, ipu_channel_t channel,
+int32_t ipu_disp_set_window_pos(struct ipu_soc *ipu, ipu_channel_t channel,
 				int16_t x_pos, int16_t y_pos)
 {
 	u32 reg;
+	unsigned long lock_flags;
 	uint32_t flow = 0;
 	uint32_t dp_srm_shift;
 
@@ -1962,6 +1829,11 @@
 	} else
 		return -EINVAL;
 
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
+
 	ipu_dp_write(ipu, (x_pos << 16) | y_pos, DP_FG_POS(flow));
 
 	if (ipu_is_channel_busy(ipu, channel)) {
@@ -1975,28 +1847,19 @@
 		ipu_cm_write(ipu, reg, IPU_SRM_PRI2);
 	}
 
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
+
 	return 0;
 }
-
-int32_t ipu_disp_set_window_pos(struct ipu_soc *ipu, ipu_channel_t channel,
-				int16_t x_pos, int16_t y_pos)
-{
-	int ret;
-	unsigned long lock_flags;
-
-	_ipu_get(ipu);
-	_ipu_lock(ipu, &lock_flags);
-	ret = _ipu_disp_set_window_pos(ipu, channel, x_pos, y_pos);
-	_ipu_unlock(ipu, &lock_flags);
-	_ipu_put(ipu);
-	return ret;
-}
 EXPORT_SYMBOL(ipu_disp_set_window_pos);
 
-int32_t _ipu_disp_get_window_pos(struct ipu_soc *ipu, ipu_channel_t channel,
+int32_t ipu_disp_get_window_pos(struct ipu_soc *ipu, ipu_channel_t channel,
 				int16_t *x_pos, int16_t *y_pos)
 {
 	u32 reg;
+	unsigned long lock_flags;
 	uint32_t flow = 0;
 
 	if (channel == MEM_FG_SYNC)
@@ -2008,25 +1871,20 @@
 	else
 		return -EINVAL;
 
+	if (!ipu->clk_enabled)
+		clk_enable(ipu->ipu_clk);
+	spin_lock_irqsave(&ipu->ipu_lock, lock_flags);
+
 	reg = ipu_dp_read(ipu, DP_FG_POS(flow));
 
 	*x_pos = (reg >> 16) & 0x7FF;
 	*y_pos = reg & 0x7FF;
 
-	return 0;
-}
-int32_t ipu_disp_get_window_pos(struct ipu_soc *ipu, ipu_channel_t channel,
-				int16_t *x_pos, int16_t *y_pos)
-{
-	int ret;
-	unsigned long lock_flags;
+	spin_unlock_irqrestore(&ipu->ipu_lock, lock_flags);
+	if (!ipu->clk_enabled)
+		clk_disable(ipu->ipu_clk);
 
-	_ipu_get(ipu);
-	_ipu_lock(ipu, &lock_flags);
-	ret = _ipu_disp_get_window_pos(ipu, channel, x_pos, y_pos);
-	_ipu_unlock(ipu, &lock_flags);
-	_ipu_put(ipu);
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL(ipu_disp_get_window_pos);
 
diff --git a/drivers/mxc/ipu3/ipu_param_mem.h b/drivers/mxc/ipu3/ipu_param_mem.h
index d2ad269..d7167f7 100644
--- a/drivers/mxc/ipu3/ipu_param_mem.h
+++ b/drivers/mxc/ipu3/ipu_param_mem.h
@@ -41,24 +41,6 @@
 	} \
 }
 
-#define ipu_ch_param_set_field_io(base, w, bit, size, v) { \
-	int i = (bit) / 32; \
-	int off = (bit) % 32; \
-	unsigned reg_offset; \
-	u32 temp; \
-	reg_offset = sizeof(struct ipu_ch_param_word) * w / 4; \
-	reg_offset += i; \
-	temp = readl((u32 *)base + reg_offset); \
-	temp |= (v) << off; \
-	writel(temp, (u32 *)base + reg_offset); \
-	if (((bit)+(size)-1)/32 > i) { \
-		reg_offset++; \
-		temp = readl((u32 *)base + reg_offset); \
-		temp |= (v) >> (off ? (32 - off) : 0); \
-		writel(temp, (u32 *)base + reg_offset); \
-	} \
-}
-
 #define ipu_ch_param_mod_field(base, w, bit, size, v) { \
 	int i = (bit) / 32; \
 	int off = (bit) % 32; \
@@ -74,27 +56,6 @@
 	} \
 }
 
-#define ipu_ch_param_mod_field_io(base, w, bit, size, v) { \
-	int i = (bit) / 32; \
-	int off = (bit) % 32; \
-	u32 mask = (1UL << size) - 1; \
-	unsigned reg_offset; \
-	u32 temp; \
-	reg_offset = sizeof(struct ipu_ch_param_word) * w / 4; \
-	reg_offset += i; \
-	temp = readl((u32 *)base + reg_offset); \
-	temp &= ~(mask << off); \
-	temp |= (v) << off; \
-	writel(temp, (u32 *)base + reg_offset); \
-	if (((bit)+(size)-1)/32 > i) { \
-		reg_offset++; \
-		temp = readl((u32 *)base + reg_offset); \
-		temp &= ~(mask >> (32 - off)); \
-		temp |= ((v) >> (off ? (32 - off) : 0)); \
-		writel(temp, (u32 *)base + reg_offset); \
-	} \
-}
-
 #define ipu_ch_param_read_field(base, w, bit, size) ({ \
 	u32 temp2; \
 	int i = (bit) / 32; \
@@ -110,25 +71,6 @@
 	temp1; \
 })
 
-#define ipu_ch_param_read_field_io(base, w, bit, size) ({ \
-	u32 temp1, temp2; \
-	int i = (bit) / 32; \
-	int off = (bit) % 32; \
-	u32 mask = (1UL << size) - 1; \
-	unsigned reg_offset; \
-	reg_offset = sizeof(struct ipu_ch_param_word) * w / 4; \
-	reg_offset += i; \
-	temp1 = readl((u32 *)base + reg_offset); \
-	temp1 = mask & (temp1 >> off); \
-	if (((bit)+(size)-1)/32 > i) { \
-		reg_offset++; \
-		temp2 = readl((u32 *)base + reg_offset); \
-		temp2 &= mask >> (off ? (32 - off) : 0); \
-		temp1 |= temp2 << (off ? (32 - off) : 0); \
-	} \
-	temp1; \
-})
-
 static inline int __ipu_ch_get_third_buf_cpmem_num(int ch)
 {
 	switch (ch) {
@@ -184,35 +126,35 @@
 		 p->word[1].data[0], p->word[1].data[1], p->word[1].data[2],
 		 p->word[1].data[3], p->word[1].data[4]);
 	dev_dbg(ipu->dev, "PFS 0x%x, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 85, 4));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 85, 4));
 	dev_dbg(ipu->dev, "BPP 0x%x, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 0, 107, 3));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 0, 107, 3));
 	dev_dbg(ipu->dev, "NPB 0x%x\n",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 78, 7));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 78, 7));
 
 	dev_dbg(ipu->dev, "FW %d, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 0, 125, 13));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 0, 125, 13));
 	dev_dbg(ipu->dev, "FH %d, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 0, 138, 12));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 0, 138, 12));
 	dev_dbg(ipu->dev, "Stride %d\n",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 102, 14));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 102, 14));
 
 	dev_dbg(ipu->dev, "Width0 %d+1, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 116, 3));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 116, 3));
 	dev_dbg(ipu->dev, "Width1 %d+1, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 119, 3));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 119, 3));
 	dev_dbg(ipu->dev, "Width2 %d+1, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 122, 3));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 122, 3));
 	dev_dbg(ipu->dev, "Width3 %d+1, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 125, 3));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 125, 3));
 	dev_dbg(ipu->dev, "Offset0 %d, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 128, 5));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 128, 5));
 	dev_dbg(ipu->dev, "Offset1 %d, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 133, 5));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 133, 5));
 	dev_dbg(ipu->dev, "Offset2 %d, ",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 138, 5));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 138, 5));
 	dev_dbg(ipu->dev, "Offset3 %d\n",
-		 ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 143, 5));
+		 ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 143, 5));
 }
 
 static inline void _ipu_ch_param_init(struct ipu_soc *ipu, int ch,
@@ -450,24 +392,24 @@
 {
 	int32_t sub_ch = 0;
 
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 1, 78, 7,
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 1, 78, 7,
 			       burst_pixels - 1);
 
 	sub_ch = __ipu_ch_get_third_buf_cpmem_num(ch);
 	if (sub_ch <= 0)
 		return;
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 1, 78, 7,
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 1, 78, 7,
 			       burst_pixels - 1);
 };
 
 static inline int _ipu_ch_param_get_burst_size(struct ipu_soc *ipu, uint32_t ch)
 {
-	return ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 78, 7) + 1;
+	return ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 78, 7) + 1;
 };
 
 static inline int _ipu_ch_param_get_bpp(struct ipu_soc *ipu, uint32_t ch)
 {
-	return ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 0, 107, 3);
+	return ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 0, 107, 3);
 };
 
 static inline void _ipu_ch_param_set_buffer(struct ipu_soc *ipu, uint32_t ch,
@@ -480,7 +422,7 @@
 		bufNum = 0;
 	}
 
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 1, 29 * bufNum, 29,
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 1, 29 * bufNum, 29,
 			       phyaddr / 8);
 };
 
@@ -490,24 +432,24 @@
 	u32 temp_rot = bitrev8(rot) >> 5;
 	int32_t sub_ch = 0;
 
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 0, 119, 3, temp_rot);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 0, 119, 3, temp_rot);
 
 	sub_ch = __ipu_ch_get_third_buf_cpmem_num(ch);
 	if (sub_ch <= 0)
 		return;
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 0, 119, 3, temp_rot);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 0, 119, 3, temp_rot);
 };
 
 static inline void _ipu_ch_param_set_block_mode(struct ipu_soc *ipu, uint32_t ch)
 {
 	int32_t sub_ch = 0;
 
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 0, 117, 2, 1);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 0, 117, 2, 1);
 
 	sub_ch = __ipu_ch_get_third_buf_cpmem_num(ch);
 	if (sub_ch <= 0)
 		return;
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 0, 117, 2, 1);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 0, 117, 2, 1);
 };
 
 static inline void _ipu_ch_param_set_alpha_use_separate_channel(struct ipu_soc *ipu,
@@ -517,9 +459,9 @@
 	int32_t sub_ch = 0;
 
 	if (option) {
-		ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 1, 89, 1, 1);
+		ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 1, 89, 1, 1);
 	} else {
-		ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 1, 89, 1, 0);
+		ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 1, 89, 1, 0);
 	}
 
 	sub_ch = __ipu_ch_get_third_buf_cpmem_num(ch);
@@ -527,9 +469,9 @@
 		return;
 
 	if (option) {
-		ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 1, 89, 1, 1);
+		ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 1, 89, 1, 1);
 	} else {
-		ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 1, 89, 1, 0);
+		ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 1, 89, 1, 0);
 	}
 };
 
@@ -537,12 +479,12 @@
 {
 	int32_t sub_ch = 0;
 
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 1, 149, 1, 1);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 1, 149, 1, 1);
 
 	sub_ch = __ipu_ch_get_third_buf_cpmem_num(ch);
 	if (sub_ch <= 0)
 		return;
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 1, 149, 1, 1);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 1, 149, 1, 1);
 };
 
 static inline void _ipu_ch_param_set_alpha_buffer_memory(struct ipu_soc *ipu, uint32_t ch)
@@ -569,12 +511,12 @@
 		return;
 	}
 
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 1, 90, 3, alp_mem_idx);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 1, 90, 3, alp_mem_idx);
 
 	sub_ch = __ipu_ch_get_third_buf_cpmem_num(ch);
 	if (sub_ch <= 0)
 		return;
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 1, 90, 3, alp_mem_idx);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 1, 90, 3, alp_mem_idx);
 };
 
 static inline void _ipu_ch_param_set_interlaced_scan(struct ipu_soc *ipu, uint32_t ch)
@@ -584,10 +526,10 @@
 
 	sub_ch = __ipu_ch_get_third_buf_cpmem_num(ch);
 
-	ipu_ch_param_set_field_io(ipu_ch_param_addr(ipu, ch), 0, 113, 1, 1);
+	ipu_ch_param_set_field(ipu_ch_param_addr(ipu, ch), 0, 113, 1, 1);
 	if (sub_ch > 0)
-		ipu_ch_param_set_field_io(ipu_ch_param_addr(ipu, sub_ch), 0, 113, 1, 1);
-	stride = ipu_ch_param_read_field_io(ipu_ch_param_addr(ipu, ch), 1, 102, 14) + 1;
+		ipu_ch_param_set_field(ipu_ch_param_addr(ipu, sub_ch), 0, 113, 1, 1);
+	stride = ipu_ch_param_read_field(ipu_ch_param_addr(ipu, ch), 1, 102, 14) + 1;
 	/* ILO is 20-bit and 8-byte aligned */
 	if (stride/8 > 0xfffff)
 		dev_warn(ipu->dev,
@@ -595,29 +537,27 @@
 	if (stride%8)
 		dev_warn(ipu->dev,
 			 "IDMAC%d's ILO is not 8-byte aligned\n", ch);
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 1, 58, 20, stride / 8);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 1, 58, 20, stride / 8);
 	if (sub_ch > 0)
-		ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 1, 58, 20,
+		ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 1, 58, 20,
 				       stride / 8);
 	stride *= 2;
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 1, 102, 14, stride - 1);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 1, 102, 14, stride - 1);
 	if (sub_ch > 0)
-		ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 1, 102, 14,
+		ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 1, 102, 14,
 				       stride - 1);
 };
 
-static inline void _ipu_ch_param_set_axi_id(struct ipu_soc *ipu, uint32_t ch, uint32_t id)
+static inline void _ipu_ch_param_set_high_priority(struct ipu_soc *ipu, uint32_t ch)
 {
 	int32_t sub_ch = 0;
 
-	id %= 4;
-
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 1, 93, 2, id);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 1, 93, 2, 1);
 
 	sub_ch = __ipu_ch_get_third_buf_cpmem_num(ch);
 	if (sub_ch <= 0)
 		return;
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 1, 93, 2, id);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 1, 93, 2, 1);
 };
 
 /* IDMAC U/V offset changing support */
@@ -773,26 +713,26 @@
 		dev_warn(ipu->dev,
 			"IDMAC%d's V offset is not 8-byte aligned\n", ch);
 
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 0, 46, 22, u_offset / 8);
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, ch), 0, 68, 22, v_offset / 8);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 0, 46, 22, u_offset / 8);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, ch), 0, 68, 22, v_offset / 8);
 
 	sub_ch = __ipu_ch_get_third_buf_cpmem_num(ch);
 	if (sub_ch <= 0)
 		return;
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 0, 46, 22, u_offset / 8);
-	ipu_ch_param_mod_field_io(ipu_ch_param_addr(ipu, sub_ch), 0, 68, 22, v_offset / 8);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 0, 46, 22, u_offset / 8);
+	ipu_ch_param_mod_field(ipu_ch_param_addr(ipu, sub_ch), 0, 68, 22, v_offset / 8);
 };
 
 static inline void _ipu_ch_params_set_alpha_width(struct ipu_soc *ipu, uint32_t ch, int alpha_width)
 {
 	int32_t sub_ch = 0;
 
-	ipu_ch_param_set_field_io(ipu_ch_param_addr(ipu, ch), 1, 125, 3, alpha_width - 1);
+	ipu_ch_param_set_field(ipu_ch_param_addr(ipu, ch), 1, 125, 3, alpha_width - 1);
 
 	sub_ch = __ipu_ch_get_third_buf_cpmem_num(ch);
 	if (sub_ch <= 0)
 		return;
-	ipu_ch_param_set_field_io(ipu_ch_param_addr(ipu, sub_ch), 1, 125, 3, alpha_width - 1);
+	ipu_ch_param_set_field(ipu_ch_param_addr(ipu, sub_ch), 1, 125, 3, alpha_width - 1);
 };
 
 #endif
diff --git a/drivers/mxc/ipu3/ipu_prv.h b/drivers/mxc/ipu3/ipu_prv.h
index 0114cc1..dfb7b38 100644
--- a/drivers/mxc/ipu3/ipu_prv.h
+++ b/drivers/mxc/ipu3/ipu_prv.h
@@ -15,11 +15,9 @@
 
 #include <linux/types.h>
 #include <linux/device.h>
-#include <linux/clkdev.h>
+#include <mach/clock.h>
 #include <linux/interrupt.h>
 #include <linux/fsl_devices.h>
-#include <mach/clock.h>
-#include <mach/ipu-v3.h>
 
 #ifdef CONFIG_MXC_IPU_V3H
 #define MXC_IPU_MAX_NUM	2
@@ -29,8 +27,6 @@
 
 /* Globals */
 extern int dmfc_type_setup;
-extern struct clk ipu_pixel_clk[];
-extern struct clk_lookup ipu_lookups[];
 
 #define IDMA_CHAN_INVALID	0xFF
 #define HIGH_RESOLUTION_WIDTH	1024
@@ -54,6 +50,7 @@
 struct ipu_soc {
 	/*clk*/
 	struct clk *ipu_clk;
+	bool clk_enabled;
 	struct clk *di_clk[2];
 	struct clk *csi_clk[2];
 	struct clk pixel_clk[2];
@@ -79,6 +76,7 @@
 	u32 *disp_base[2];
 	u32 *vdi_reg;
 
+	spinlock_t ipu_lock;
 	struct device *dev;
 
 	ipu_channel_t csi_channel[2];
@@ -91,7 +89,6 @@
 	uint32_t channel_enable_mask;
 
 	/*use count*/
-	int ipu_use_count;
 	int dc_use_count;
 	int dp_use_count;
 	int dmfc_use_count;
@@ -102,9 +99,6 @@
 	int di_use_count[2];
 	int csi_use_count[2];
 
-	struct mutex mutex_lock;
-	spinlock_t spin_lock;
-
 	int dmfc_size_28;
 	int dmfc_size_29;
 	int dmfc_size_24;
@@ -321,12 +315,5 @@
 void _ipu_smfc_init(struct ipu_soc *ipu, ipu_channel_t channel, uint32_t mipi_id, uint32_t csi);
 void _ipu_smfc_set_burst_size(struct ipu_soc *ipu, ipu_channel_t channel, uint32_t bs);
 void _ipu_dp_set_csc_coefficients(struct ipu_soc *ipu, ipu_channel_t channel, int32_t param[][3]);
-int32_t _ipu_disp_set_window_pos(struct ipu_soc *ipu, ipu_channel_t channel,
-		int16_t x_pos, int16_t y_pos);
-int32_t _ipu_disp_get_window_pos(struct ipu_soc *ipu, ipu_channel_t channel,
-		int16_t *x_pos, int16_t *y_pos);
-void _ipu_get(struct ipu_soc *ipu);
-void _ipu_put(struct ipu_soc *ipu);
-void _ipu_lock(struct ipu_soc *ipu, unsigned long *flags);
-void _ipu_unlock(struct ipu_soc *ipu, unsigned long *flags);
+
 #endif				/* __INCLUDE_IPU_PRV_H__ */
diff --git a/include/linux/ipu.h b/include/linux/ipu.h
index d6c1588..06d8c64 100644
--- a/include/linux/ipu.h
+++ b/include/linux/ipu.h
@@ -59,6 +59,25 @@
 } ipu_rotate_mode_t;
 
 /*!
+ * Enumeration of Post Filter modes
+ */
+typedef enum {
+	PF_DISABLE_ALL = 0,
+	PF_MPEG4_DEBLOCK = 1,
+	PF_MPEG4_DERING = 2,
+	PF_MPEG4_DEBLOCK_DERING = 3,
+	PF_H264_DEBLOCK = 4,
+} pf_operation_t;
+
+/*!
+ * Enumeration of Synchronous (Memory-less) panel types
+ */
+typedef enum {
+	IPU_PANEL_SHARP_TFT,
+	IPU_PANEL_TFT,
+} ipu_panel_t;
+
+/*!
  * Enumeration of VDI MOTION select
  */
 typedef enum {
@@ -67,16 +86,6 @@
 	HIGH_MOTION = 2,
 } ipu_motion_sel;
 
-/*!
- * Enumeration of DI ports for ADC.
- */
-typedef enum {
-	DISP0,
-	DISP1,
-	DISP2,
-	DISP3
-} display_port_t;
-
 /*  IPU Pixel format definitions */
 /*  Four-character-code (FOURCC) */
 #define fourcc(a, b, c, d)\
@@ -137,6 +146,925 @@
 #define IPU_PIX_FMT_YUV422P fourcc('4', '2', '2', 'P')	/*!< 16 YUV 4:2:2 */
 /*! @} */
 
+/* IPU Driver channels definitions.	*/
+/* Note these are different from IDMA channels */
+#ifdef CONFIG_MXC_IPU_V1
+#define _MAKE_CHAN(num, in, out, sec)    ((num << 24) | (sec << 16) | (out << 8) | in)
+#define IPU_CHAN_ID(ch)         (ch >> 24)
+#define IPU_CHAN_SEC_DMA(ch)    ((uint32_t) (ch >> 16) & 0xFF)
+#define IPU_CHAN_OUT_DMA(ch)    ((uint32_t) (ch >> 8) & 0xFF)
+#define IPU_CHAN_IN_DMA(ch)     ((uint32_t) (ch & 0xFF))
+
+#else
+#define IPU_MAX_CH	32
+#define _MAKE_CHAN(num, v_in, g_in, a_in, out) \
+	((num << 24) | (v_in << 18) | (g_in << 12) | (a_in << 6) | out)
+#define _MAKE_ALT_CHAN(ch)		(ch | (IPU_MAX_CH << 24))
+#define IPU_CHAN_ID(ch)			(ch >> 24)
+#define IPU_CHAN_ALT(ch)		(ch & 0x02000000)
+#define IPU_CHAN_ALPHA_IN_DMA(ch)	((uint32_t) (ch >> 6) & 0x3F)
+#define IPU_CHAN_GRAPH_IN_DMA(ch)	((uint32_t) (ch >> 12) & 0x3F)
+#define IPU_CHAN_VIDEO_IN_DMA(ch)	((uint32_t) (ch >> 18) & 0x3F)
+#define IPU_CHAN_OUT_DMA(ch)		((uint32_t) (ch & 0x3F))
+#define NO_DMA 0x3F
+#define ALT	1
+#endif
+/*!
+ * Enumeration of IPU logical channels. An IPU logical channel is defined as a
+ * combination of an input (memory to IPU), output (IPU to memory), and/or
+ * secondary input IDMA channels and in some cases an Image Converter task.
+ * Some channels consist of only an input or output.
+ */
+typedef enum {
+	CHAN_NONE = -1,
+#ifdef CONFIG_MXC_IPU_V1
+	CSI_MEM = _MAKE_CHAN(1, 0xFF, 7, 0xFF),	/*!< CSI raw sensor data to memory */
+
+	CSI_PRP_ENC_MEM = _MAKE_CHAN(2, 0xFF, 0, 0xFF),	/*!< CSI to IC Encoder PreProcessing to Memory */
+	MEM_PRP_ENC_MEM = _MAKE_CHAN(3, 6, 0, 0xFF),	/*!< Memory to IC Encoder PreProcessing to Memory */
+	MEM_ROT_ENC_MEM = _MAKE_CHAN(4, 10, 8, 0xFF),	/*!< Memory to IC Encoder Rotation to Memory */
+
+	CSI_PRP_VF_MEM = _MAKE_CHAN(5, 0xFF, 1, 0xFF),	/*!< CSI to IC Viewfinder PreProcessing to Memory */
+	CSI_PRP_VF_ADC = _MAKE_CHAN(6, 0xFF, 1, 0xFF),	/*!< CSI to IC Viewfinder PreProcessing to ADC */
+	MEM_PRP_VF_MEM = _MAKE_CHAN(7, 6, 1, 3),	/*!< Memory to IC Viewfinder PreProcessing to Memory */
+	MEM_PRP_VF_ADC = _MAKE_CHAN(8, 6, 1, 3),	/*!< Memory to IC Viewfinder PreProcessing to ADC */
+	MEM_ROT_VF_MEM = _MAKE_CHAN(9, 11, 9, 0xFF),	/*!< Memory to IC Viewfinder Rotation to Memory */
+
+	MEM_PP_MEM = _MAKE_CHAN(10, 5, 2, 4),	/*!< Memory to IC PostProcessing to Memory */
+	MEM_ROT_PP_MEM = _MAKE_CHAN(11, 13, 12, 0xFF),	/*!< Memory to IC PostProcessing Rotation to Memory */
+	MEM_PP_ADC = _MAKE_CHAN(12, 5, 2, 4),	/*!< Memory to IC PostProcessing to ADC */
+
+	MEM_SDC_BG = _MAKE_CHAN(14, 14, 0xFF, 0xFF),	/*!< Memory to SDC Background plane */
+	MEM_SDC_FG = _MAKE_CHAN(15, 15, 0xFF, 0xFF),	/*!< Memory to SDC Foreground plane */
+	MEM_SDC_MASK = _MAKE_CHAN(16, 16, 0xFF, 0xFF),	/*!< Memory to SDC Mask */
+
+	MEM_BG_SYNC = MEM_SDC_BG,
+	MEM_FG_SYNC = MEM_SDC_FG,
+
+	ADC_SYS1 = _MAKE_CHAN(17, 18, 22, 20),	/*!< Memory to ADC System Channel 1 */
+	ADC_SYS2 = _MAKE_CHAN(18, 19, 23, 21),	/*!< Memory to ADC System Channel 2 */
+
+	MEM_PF_Y_MEM = _MAKE_CHAN(19, 26, 29, 24),	/*!< Y and PF Memory to Post-filter to Y Memory */
+	MEM_PF_U_MEM = _MAKE_CHAN(20, 27, 30, 25),	/*!< U and PF Memory to Post-filter to U Memory */
+	MEM_PF_V_MEM = _MAKE_CHAN(21, 28, 31, 0xFF),	/*!< V Memory to Post-filter to V Memory */
+
+	MEM_DC_SYNC = CHAN_NONE,
+	DIRECT_ASYNC0 = CHAN_NONE,
+	DIRECT_ASYNC1 = CHAN_NONE,
+	MEM_VDI_PRP_VF_MEM_P = CHAN_NONE,
+	MEM_VDI_PRP_VF_MEM = CHAN_NONE,
+	MEM_VDI_PRP_VF_MEM_N = CHAN_NONE,
+#else
+	MEM_ROT_ENC_MEM = _MAKE_CHAN(1, 45, NO_DMA, NO_DMA, 48),
+	MEM_ROT_VF_MEM = _MAKE_CHAN(2, 46, NO_DMA, NO_DMA, 49),
+	MEM_ROT_PP_MEM = _MAKE_CHAN(3, 47, NO_DMA, NO_DMA, 50),
+
+	MEM_PRP_ENC_MEM = _MAKE_CHAN(4, 12, 14, 17, 20),
+	MEM_PRP_VF_MEM = _MAKE_CHAN(5, 12, 14, 17, 21),
+	MEM_PP_MEM = _MAKE_CHAN(6, 11, 15, 18, 22),
+
+	MEM_DC_SYNC = _MAKE_CHAN(7, 28, NO_DMA, NO_DMA, NO_DMA),
+	MEM_DC_ASYNC = _MAKE_CHAN(8, 41, NO_DMA, NO_DMA, NO_DMA),
+	MEM_BG_SYNC = _MAKE_CHAN(9, 23, NO_DMA, 51, NO_DMA),
+	MEM_FG_SYNC = _MAKE_CHAN(10, 27, NO_DMA, 31, NO_DMA),
+
+	MEM_BG_ASYNC0 = _MAKE_CHAN(11, 24, NO_DMA, 52, NO_DMA),
+	MEM_FG_ASYNC0 = _MAKE_CHAN(12, 29, NO_DMA, 33, NO_DMA),
+	MEM_BG_ASYNC1 = _MAKE_ALT_CHAN(MEM_BG_ASYNC0),
+	MEM_FG_ASYNC1 = _MAKE_ALT_CHAN(MEM_FG_ASYNC0),
+
+	DIRECT_ASYNC0 = _MAKE_CHAN(13, NO_DMA, NO_DMA, NO_DMA, NO_DMA),
+	DIRECT_ASYNC1 = _MAKE_CHAN(14, NO_DMA, NO_DMA, NO_DMA, NO_DMA),
+
+	CSI_MEM0 = _MAKE_CHAN(15, NO_DMA, NO_DMA, NO_DMA, 0),
+	CSI_MEM1 = _MAKE_CHAN(16, NO_DMA, NO_DMA, NO_DMA, 1),
+	CSI_MEM2 = _MAKE_CHAN(17, NO_DMA, NO_DMA, NO_DMA, 2),
+	CSI_MEM3 = _MAKE_CHAN(18, NO_DMA, NO_DMA, NO_DMA, 3),
+
+	CSI_MEM = CSI_MEM0,
+
+	CSI_PRP_ENC_MEM = _MAKE_CHAN(19, NO_DMA, NO_DMA, NO_DMA, 20),
+	CSI_PRP_VF_MEM = _MAKE_CHAN(20, NO_DMA, NO_DMA, NO_DMA, 21),
+
+	MEM_VDI_PRP_VF_MEM_P = _MAKE_CHAN(21, 8, 14, 17, 21),
+	MEM_VDI_PRP_VF_MEM = _MAKE_CHAN(22, 9, 14, 17, 21),
+	MEM_VDI_PRP_VF_MEM_N = _MAKE_CHAN(23, 10, 14, 17, 21),
+
+	MEM_PP_ADC = CHAN_NONE,
+	ADC_SYS2 = CHAN_NONE,
+#endif
+
+} ipu_channel_t;
+
+/*!
+ * Enumeration of types of buffers for a logical channel.
+ */
+typedef enum {
+	IPU_OUTPUT_BUFFER = 0,	/*!< Buffer for output from IPU */
+	IPU_ALPHA_IN_BUFFER = 1,	/*!< Buffer for input to IPU */
+	IPU_GRAPH_IN_BUFFER = 2,	/*!< Buffer for input to IPU */
+	IPU_VIDEO_IN_BUFFER = 3,	/*!< Buffer for input to IPU */
+	IPU_INPUT_BUFFER = IPU_VIDEO_IN_BUFFER,
+	IPU_SEC_INPUT_BUFFER = IPU_GRAPH_IN_BUFFER,
+} ipu_buffer_t;
+
+#define IPU_PANEL_SERIAL		1
+#define IPU_PANEL_PARALLEL		2
+
+/*!
+ * Enumeration of DI ports for ADC.
+ */
+typedef enum {
+	DISP0,
+	DISP1,
+	DISP2,
+	DISP3
+} display_port_t;
+
+/*!
+ * Enumeration of ADC channel operation mode.
+ */
+typedef enum {
+	Disable,
+	WriteTemplateNonSeq,
+	ReadTemplateNonSeq,
+	WriteTemplateUnCon,
+	ReadTemplateUnCon,
+	WriteDataWithRS,
+	WriteDataWoRS,
+	WriteCmd
+} mcu_mode_t;
+
+/*!
+ * Enumeration of ADC channel addressing mode.
+ */
+typedef enum {
+	FullWoBE,
+	FullWithBE,
+	XY
+} display_addressing_t;
+
+/*!
+ * Union of initialization parameters for a logical channel.
+ */
+typedef union {
+	struct {
+		uint32_t csi;
+		uint32_t mipi_id;
+		bool mipi_en;
+		bool interlaced;
+	} csi_mem;
+	struct {
+		uint32_t in_width;
+		uint32_t in_height;
+		uint32_t in_pixel_fmt;
+		uint32_t out_width;
+		uint32_t out_height;
+		uint32_t out_pixel_fmt;
+		uint32_t csi;
+	} csi_prp_enc_mem;
+	struct {
+		uint32_t in_width;
+		uint32_t in_height;
+		uint32_t in_pixel_fmt;
+		uint32_t out_width;
+		uint32_t out_height;
+		uint32_t out_pixel_fmt;
+		uint32_t outh_resize_ratio;
+		uint32_t outv_resize_ratio;
+	} mem_prp_enc_mem;
+	struct {
+		uint32_t in_width;
+		uint32_t in_height;
+		uint32_t in_pixel_fmt;
+		uint32_t out_width;
+		uint32_t out_height;
+		uint32_t out_pixel_fmt;
+	} mem_rot_enc_mem;
+	struct {
+		uint32_t in_width;
+		uint32_t in_height;
+		uint32_t in_pixel_fmt;
+		uint32_t out_width;
+		uint32_t out_height;
+		uint32_t out_pixel_fmt;
+		bool graphics_combine_en;
+		bool global_alpha_en;
+		bool key_color_en;
+		uint32_t csi;
+	} csi_prp_vf_mem;
+	struct {
+		uint32_t in_width;
+		uint32_t in_height;
+		uint32_t in_pixel_fmt;
+		uint32_t out_width;
+		uint32_t out_height;
+		uint32_t out_pixel_fmt;
+		bool graphics_combine_en;
+		bool global_alpha_en;
+		bool key_color_en;
+		display_port_t disp;
+		uint32_t out_left;
+		uint32_t out_top;
+	} csi_prp_vf_adc;
+	struct {
+		uint32_t in_width;
+		uint32_t in_height;
+		uint32_t in_pixel_fmt;
+		uint32_t out_width;
+		uint32_t out_height;
+		uint32_t out_pixel_fmt;
+		uint32_t outh_resize_ratio;
+		uint32_t outv_resize_ratio;
+		bool graphics_combine_en;
+		bool global_alpha_en;
+		bool key_color_en;
+		uint32_t in_g_pixel_fmt;
+		uint8_t alpha;
+		uint32_t key_color;
+		bool alpha_chan_en;
+		ipu_motion_sel motion_sel;
+		enum v4l2_field field_fmt;
+	} mem_prp_vf_mem;
+	struct {
+		uint32_t temp;
+	} mem_prp_vf_adc;
+	struct {
+		uint32_t temp;
+	} mem_rot_vf_mem;
+	struct {
+		uint32_t in_width;
+		uint32_t in_height;
+		uint32_t in_pixel_fmt;
+		uint32_t out_width;
+		uint32_t out_height;
+		uint32_t out_pixel_fmt;
+		uint32_t outh_resize_ratio;
+		uint32_t outv_resize_ratio;
+		bool graphics_combine_en;
+		bool global_alpha_en;
+		bool key_color_en;
+		uint32_t in_g_pixel_fmt;
+		uint8_t alpha;
+		uint32_t key_color;
+		bool alpha_chan_en;
+	} mem_pp_mem;
+	struct {
+		uint32_t temp;
+	} mem_rot_mem;
+	struct {
+		uint32_t in_width;
+		uint32_t in_height;
+		uint32_t in_pixel_fmt;
+		uint32_t out_width;
+		uint32_t out_height;
+		uint32_t out_pixel_fmt;
+		bool graphics_combine_en;
+		bool global_alpha_en;
+		bool key_color_en;
+		display_port_t disp;
+		uint32_t out_left;
+		uint32_t out_top;
+	} mem_pp_adc;
+	struct {
+		pf_operation_t operation;
+	} mem_pf_mem;
+	struct {
+		uint32_t di;
+		bool interlaced;
+		uint32_t in_pixel_fmt;
+		uint32_t out_pixel_fmt;
+	} mem_dc_sync;
+	struct {
+		uint32_t temp;
+	} mem_sdc_fg;
+	struct {
+		uint32_t di;
+		bool interlaced;
+		uint32_t in_pixel_fmt;
+		uint32_t out_pixel_fmt;
+		bool alpha_chan_en;
+	} mem_dp_bg_sync;
+	struct {
+		uint32_t temp;
+	} mem_sdc_bg;
+	struct {
+		uint32_t di;
+		bool interlaced;
+		uint32_t in_pixel_fmt;
+		uint32_t out_pixel_fmt;
+		bool alpha_chan_en;
+	} mem_dp_fg_sync;
+	struct {
+		uint32_t di;
+	} direct_async;
+	struct {
+		display_port_t disp;
+		mcu_mode_t ch_mode;
+		uint32_t out_left;
+		uint32_t out_top;
+	} adc_sys1;
+	struct {
+		display_port_t disp;
+		mcu_mode_t ch_mode;
+		uint32_t out_left;
+		uint32_t out_top;
+	} adc_sys2;
+} ipu_channel_params_t;
+
+/*!
+ * Enumeration of IPU interrupt sources.
+ */
+enum ipu_irq_line {
+#ifdef CONFIG_MXC_IPU_V1
+	IPU_IRQ_DC_FC_1 = -1,
+
+	IPU_IRQ_PRP_ENC_OUT_EOF = 0,
+	IPU_IRQ_PRP_VF_OUT_EOF = 1,
+	IPU_IRQ_PP_OUT_EOF = 2,
+	IPU_IRQ_PRP_GRAPH_IN_EOF = 3,
+	IPU_IRQ_PP_GRAPH_IN_EOF = 4,
+	IPU_IRQ_PP_IN_EOF = 5,
+	IPU_IRQ_PRP_IN_EOF = 6,
+	IPU_IRQ_SENSOR_OUT_EOF = 7,
+	IPU_IRQ_CSI0_OUT_EOF = IPU_IRQ_SENSOR_OUT_EOF,
+	IPU_IRQ_PRP_ENC_ROT_OUT_EOF = 8,
+	IPU_IRQ_PRP_VF_ROT_OUT_EOF = 9,
+	IPU_IRQ_PRP_ENC_ROT_IN_EOF = 10,
+	IPU_IRQ_PRP_VF_ROT_IN_EOF = 11,
+	IPU_IRQ_PP_ROT_OUT_EOF = 12,
+	IPU_IRQ_PP_ROT_IN_EOF = 13,
+	IPU_IRQ_BG_SYNC_EOF = 14,
+	IPU_IRQ_SDC_BG_EOF = IPU_IRQ_BG_SYNC_EOF,
+	IPU_IRQ_FG_SYNC_EOF = 15,
+	IPU_IRQ_SDC_FG_EOF = IPU_IRQ_FG_SYNC_EOF,
+	IPU_IRQ_SDC_MASK_EOF = 16,
+	IPU_IRQ_SDC_BG_PART_EOF = 17,
+	IPU_IRQ_ADC_SYS1_WR_EOF = 18,
+	IPU_IRQ_ADC_SYS2_WR_EOF = 19,
+	IPU_IRQ_ADC_SYS1_CMD_EOF = 20,
+	IPU_IRQ_ADC_SYS2_CMD_EOF = 21,
+	IPU_IRQ_ADC_SYS1_RD_EOF = 22,
+	IPU_IRQ_ADC_SYS2_RD_EOF = 23,
+	IPU_IRQ_PF_QP_IN_EOF = 24,
+	IPU_IRQ_PF_BSP_IN_EOF = 25,
+	IPU_IRQ_PF_Y_IN_EOF = 26,
+	IPU_IRQ_PF_U_IN_EOF = 27,
+	IPU_IRQ_PF_V_IN_EOF = 28,
+	IPU_IRQ_PF_Y_OUT_EOF = 29,
+	IPU_IRQ_PF_U_OUT_EOF = 30,
+	IPU_IRQ_PF_V_OUT_EOF = 31,
+
+	IPU_IRQ_PRP_ENC_OUT_NF = 32,
+	IPU_IRQ_PRP_VF_OUT_NF = 33,
+	IPU_IRQ_PP_OUT_NF = 34,
+	IPU_IRQ_PRP_GRAPH_IN_NF = 35,
+	IPU_IRQ_PP_GRAPH_IN_NF = 36,
+	IPU_IRQ_PP_IN_NF = 37,
+	IPU_IRQ_PRP_IN_NF = 38,
+	IPU_IRQ_SENSOR_OUT_NF = 39,
+	IPU_IRQ_PRP_ENC_ROT_OUT_NF = 40,
+	IPU_IRQ_PRP_VF_ROT_OUT_NF = 41,
+	IPU_IRQ_PRP_ENC_ROT_IN_NF = 42,
+	IPU_IRQ_PRP_VF_ROT_IN_NF = 43,
+	IPU_IRQ_PP_ROT_OUT_NF = 44,
+	IPU_IRQ_PP_ROT_IN_NF = 45,
+	IPU_IRQ_SDC_FG_NF = 46,
+	IPU_IRQ_SDC_BG_NF = 47,
+	IPU_IRQ_SDC_MASK_NF = 48,
+	IPU_IRQ_SDC_BG_PART_NF = 49,
+	IPU_IRQ_ADC_SYS1_WR_NF = 50,
+	IPU_IRQ_ADC_SYS2_WR_NF = 51,
+	IPU_IRQ_ADC_SYS1_CMD_NF = 52,
+	IPU_IRQ_ADC_SYS2_CMD_NF = 53,
+	IPU_IRQ_ADC_SYS1_RD_NF = 54,
+	IPU_IRQ_ADC_SYS2_RD_NF = 55,
+	IPU_IRQ_PF_QP_IN_NF = 56,
+	IPU_IRQ_PF_BSP_IN_NF = 57,
+	IPU_IRQ_PF_Y_IN_NF = 58,
+	IPU_IRQ_PF_U_IN_NF = 59,
+	IPU_IRQ_PF_V_IN_NF = 60,
+	IPU_IRQ_PF_Y_OUT_NF = 61,
+	IPU_IRQ_PF_U_OUT_NF = 62,
+	IPU_IRQ_PF_V_OUT_NF = 63,
+
+	IPU_IRQ_BREAKRQ = 64,
+	IPU_IRQ_SDC_BG_OUT_EOF = 65,
+	IPU_IRQ_BG_SF_END = IPU_IRQ_SDC_BG_OUT_EOF,
+	IPU_IRQ_SDC_FG_OUT_EOF = 66,
+	IPU_IRQ_SDC_MASK_OUT_EOF = 67,
+	IPU_IRQ_ADC_SERIAL_DATA_OUT = 68,
+	IPU_IRQ_SENSOR_NF = 69,
+	IPU_IRQ_SENSOR_EOF = 70,
+	IPU_IRQ_SDC_DISP3_VSYNC = 80,
+	IPU_IRQ_ADC_DISP0_VSYNC = 81,
+	IPU_IRQ_ADC_DISP12_VSYNC = 82,
+	IPU_IRQ_ADC_PRP_EOF = 83,
+	IPU_IRQ_ADC_PP_EOF = 84,
+	IPU_IRQ_ADC_SYS1_EOF = 85,
+	IPU_IRQ_ADC_SYS2_EOF = 86,
+
+	IPU_IRQ_PRP_ENC_OUT_NFB4EOF_ERR = 96,
+	IPU_IRQ_PRP_VF_OUT_NFB4EOF_ERR = 97,
+	IPU_IRQ_PP_OUT_NFB4EOF_ERR = 98,
+	IPU_IRQ_PRP_GRAPH_IN_NFB4EOF_ERR = 99,
+	IPU_IRQ_PP_GRAPH_IN_NFB4EOF_ERR = 100,
+	IPU_IRQ_PP_IN_NFB4EOF_ERR = 101,
+	IPU_IRQ_PRP_IN_NFB4EOF_ERR = 102,
+	IPU_IRQ_SENSOR_OUT_NFB4EOF_ERR = 103,
+	IPU_IRQ_PRP_ENC_ROT_OUT_NFB4EOF_ERR = 104,
+	IPU_IRQ_PRP_VF_ROT_OUT_NFB4EOF_ERR = 105,
+	IPU_IRQ_PRP_ENC_ROT_IN_NFB4EOF_ERR = 106,
+	IPU_IRQ_PRP_VF_ROT_IN_NFB4EOF_ERR = 107,
+	IPU_IRQ_PP_ROT_OUT_NFB4EOF_ERR = 108,
+	IPU_IRQ_PP_ROT_IN_NFB4EOF_ERR = 109,
+	IPU_IRQ_SDC_FG_NFB4EOF_ERR = 110,
+	IPU_IRQ_SDC_BG_NFB4EOF_ERR = 111,
+	IPU_IRQ_SDC_MASK_NFB4EOF_ERR = 112,
+	IPU_IRQ_SDC_BG_PART_NFB4EOF_ERR = 113,
+	IPU_IRQ_ADC_SYS1_WR_NFB4EOF_ERR = 114,
+	IPU_IRQ_ADC_SYS2_WR_NFB4EOF_ERR = 115,
+	IPU_IRQ_ADC_SYS1_CMD_NFB4EOF_ERR = 116,
+	IPU_IRQ_ADC_SYS2_CMD_NFB4EOF_ERR = 117,
+	IPU_IRQ_ADC_SYS1_RD_NFB4EOF_ERR = 118,
+	IPU_IRQ_ADC_SYS2_RD_NFB4EOF_ERR = 119,
+	IPU_IRQ_PF_QP_IN_NFB4EOF_ERR = 120,
+	IPU_IRQ_PF_BSP_IN_NFB4EOF_ERR = 121,
+	IPU_IRQ_PF_Y_IN_NFB4EOF_ERR = 122,
+	IPU_IRQ_PF_U_IN_NFB4EOF_ERR = 123,
+	IPU_IRQ_PF_V_IN_NFB4EOF_ERR = 124,
+	IPU_IRQ_PF_Y_OUT_NFB4EOF_ERR = 125,
+	IPU_IRQ_PF_U_OUT_NFB4EOF_ERR = 126,
+	IPU_IRQ_PF_V_OUT_NFB4EOF_ERR = 127,
+
+	IPU_IRQ_BAYER_BUFOVF_ERR = 128,
+	IPU_IRQ_ENC_BUFOVF_ERR = 129,
+	IPU_IRQ_VF_BUFOVF_ERR = 130,
+	IPU_IRQ_ADC_PP_TEAR_ERR = 131,
+	IPU_IRQ_ADC_SYS1_TEAR_ERR = 132,
+	IPU_IRQ_ADC_SYS2_TEAR_ERR = 133,
+	IPU_IRQ_SDC_BGD_ERR = 134,
+	IPU_IRQ_SDC_FGD_ERR = 135,
+	IPU_IRQ_SDC_MASKD_ERR = 136,
+	IPU_IRQ_BAYER_FRM_LOST_ERR = 137,
+	IPU_IRQ_ENC_FRM_LOST_ERR = 138,
+	IPU_IRQ_VF_FRM_LOST_ERR = 139,
+	IPU_IRQ_ADC_LOCK_ERR = 140,
+	IPU_IRQ_DI_LLA_LOCK_ERR = 141,
+	IPU_IRQ_AHB_M1_ERR = 142,
+	IPU_IRQ_AHB_M12_ERR = 143,
+#else
+	IPU_IRQ_CSI0_OUT_EOF = 0,
+	IPU_IRQ_CSI1_OUT_EOF = 1,
+	IPU_IRQ_CSI2_OUT_EOF = 2,
+	IPU_IRQ_CSI3_OUT_EOF = 3,
+	IPU_IRQ_VDI_P_IN_EOF = 8,
+	IPU_IRQ_VDI_C_IN_EOF = 9,
+	IPU_IRQ_VDI_N_IN_EOF = 10,
+	IPU_IRQ_PP_IN_EOF = 11,
+	IPU_IRQ_PRP_IN_EOF = 12,
+	IPU_IRQ_PRP_GRAPH_IN_EOF = 14,
+	IPU_IRQ_PP_GRAPH_IN_EOF = 15,
+	IPU_IRQ_PRP_ALPHA_IN_EOF = 17,
+	IPU_IRQ_PP_ALPHA_IN_EOF = 18,
+	IPU_IRQ_PRP_ENC_OUT_EOF = 20,
+	IPU_IRQ_PRP_VF_OUT_EOF = 21,
+	IPU_IRQ_PP_OUT_EOF = 22,
+	IPU_IRQ_BG_SYNC_EOF = 23,
+	IPU_IRQ_BG_ASYNC_EOF = 24,
+	IPU_IRQ_FG_SYNC_EOF = 27,
+	IPU_IRQ_DC_SYNC_EOF = 28,
+	IPU_IRQ_FG_ASYNC_EOF = 29,
+	IPU_IRQ_FG_ALPHA_SYNC_EOF = 31,
+
+	IPU_IRQ_FG_ALPHA_ASYNC_EOF = 33,
+	IPU_IRQ_DC_READ_EOF = 40,
+	IPU_IRQ_DC_ASYNC_EOF = 41,
+	IPU_IRQ_DC_CMD1_EOF = 42,
+	IPU_IRQ_DC_CMD2_EOF = 43,
+	IPU_IRQ_DC_MASK_EOF = 44,
+	IPU_IRQ_PRP_ENC_ROT_IN_EOF = 45,
+	IPU_IRQ_PRP_VF_ROT_IN_EOF = 46,
+	IPU_IRQ_PP_ROT_IN_EOF = 47,
+	IPU_IRQ_PRP_ENC_ROT_OUT_EOF = 48,
+	IPU_IRQ_PRP_VF_ROT_OUT_EOF = 49,
+	IPU_IRQ_PP_ROT_OUT_EOF = 50,
+	IPU_IRQ_BG_ALPHA_SYNC_EOF = 51,
+	IPU_IRQ_BG_ALPHA_ASYNC_EOF = 52,
+
+	IPU_IRQ_DP_SF_START = 448 + 2,
+	IPU_IRQ_DP_SF_END = 448 + 3,
+	IPU_IRQ_BG_SF_END = IPU_IRQ_DP_SF_END,
+	IPU_IRQ_DC_FC_0 = 448 + 8,
+	IPU_IRQ_DC_FC_1 = 448 + 9,
+	IPU_IRQ_DC_FC_2 = 448 + 10,
+	IPU_IRQ_DC_FC_3 = 448 + 11,
+	IPU_IRQ_DC_FC_4 = 448 + 12,
+	IPU_IRQ_DC_FC_6 = 448 + 13,
+	IPU_IRQ_VSYNC_PRE_0 = 448 + 14,
+	IPU_IRQ_VSYNC_PRE_1 = 448 + 15,
+#endif
+
+	IPU_IRQ_COUNT
+};
+
+/*!
+ * Bitfield of Display Interface signal polarities.
+ */
+typedef struct {
+	unsigned datamask_en:1;
+	unsigned int_clk:1;
+	unsigned interlaced:1;
+	unsigned odd_field_first:1;
+	unsigned clksel_en:1;
+	unsigned clkidle_en:1;
+	unsigned data_pol:1;	/* true = inverted */
+	unsigned clk_pol:1;	/* true = rising edge */
+	unsigned enable_pol:1;
+	unsigned Hsync_pol:1;	/* true = active high */
+	unsigned Vsync_pol:1;
+} ipu_di_signal_cfg_t;
+
+/*!
+ * Bitfield of CSI signal polarities and modes.
+ */
+
+typedef struct {
+	unsigned data_width:4;
+	unsigned clk_mode:3;
+	unsigned ext_vsync:1;
+	unsigned Vsync_pol:1;
+	unsigned Hsync_pol:1;
+	unsigned pixclk_pol:1;
+	unsigned data_pol:1;
+	unsigned sens_clksrc:1;
+	unsigned pack_tight:1;
+	unsigned force_eof:1;
+	unsigned data_en_pol:1;
+	unsigned data_fmt;
+	unsigned csi;
+	unsigned mclk;
+} ipu_csi_signal_cfg_t;
+
+/*!
+ * Enumeration of CSI data bus widths.
+ */
+enum {
+	IPU_CSI_DATA_WIDTH_4,
+	IPU_CSI_DATA_WIDTH_8,
+	IPU_CSI_DATA_WIDTH_10,
+	IPU_CSI_DATA_WIDTH_16,
+};
+
+/*!
+ * Enumeration of CSI clock modes.
+ */
+enum {
+	IPU_CSI_CLK_MODE_GATED_CLK,
+	IPU_CSI_CLK_MODE_NONGATED_CLK,
+	IPU_CSI_CLK_MODE_CCIR656_PROGRESSIVE,
+	IPU_CSI_CLK_MODE_CCIR656_INTERLACED,
+	IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_DDR,
+	IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_SDR,
+	IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_DDR,
+	IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_SDR,
+};
+
+enum {
+	IPU_CSI_MIPI_DI0,
+	IPU_CSI_MIPI_DI1,
+	IPU_CSI_MIPI_DI2,
+	IPU_CSI_MIPI_DI3,
+};
+
+typedef enum {
+	RGB,
+	YCbCr,
+	YUV
+} ipu_color_space_t;
+
+/*!
+ * Enumeration of ADC vertical sync mode.
+ */
+typedef enum {
+	VsyncNone,
+	VsyncInternal,
+	VsyncCSI,
+	VsyncExternal
+} vsync_t;
+
+typedef enum {
+	DAT,
+	CMD
+} cmddata_t;
+
+/*!
+ * Enumeration of ADC display update mode.
+ */
+typedef enum {
+	IPU_ADC_REFRESH_NONE,
+	IPU_ADC_AUTO_REFRESH,
+	IPU_ADC_AUTO_REFRESH_SNOOP,
+	IPU_ADC_SNOOPING,
+} ipu_adc_update_mode_t;
+
+/*!
+ * Enumeration of ADC display interface types (serial or parallel).
+ */
+enum {
+	IPU_ADC_IFC_MODE_SYS80_TYPE1,
+	IPU_ADC_IFC_MODE_SYS80_TYPE2,
+	IPU_ADC_IFC_MODE_SYS68K_TYPE1,
+	IPU_ADC_IFC_MODE_SYS68K_TYPE2,
+	IPU_ADC_IFC_MODE_3WIRE_SERIAL,
+	IPU_ADC_IFC_MODE_4WIRE_SERIAL,
+	IPU_ADC_IFC_MODE_5WIRE_SERIAL_CLK,
+	IPU_ADC_IFC_MODE_5WIRE_SERIAL_CS,
+};
+
+enum {
+	IPU_ADC_IFC_WIDTH_8,
+	IPU_ADC_IFC_WIDTH_16,
+};
+
+/*!
+ * Enumeration of ADC display interface burst mode.
+ */
+enum {
+	IPU_ADC_BURST_WCS,
+	IPU_ADC_BURST_WBLCK,
+	IPU_ADC_BURST_NONE,
+	IPU_ADC_BURST_SERIAL,
+};
+
+/*!
+ * Enumeration of ADC display interface RW signal timing modes.
+ */
+enum {
+	IPU_ADC_SER_NO_RW,
+	IPU_ADC_SER_RW_BEFORE_RS,
+	IPU_ADC_SER_RW_AFTER_RS,
+};
+
+/*!
+ * Bitfield of ADC signal polarities and modes.
+ */
+typedef struct {
+	unsigned data_pol:1;
+	unsigned clk_pol:1;
+	unsigned cs_pol:1;
+	unsigned rs_pol:1;
+	unsigned addr_pol:1;
+	unsigned read_pol:1;
+	unsigned write_pol:1;
+	unsigned Vsync_pol:1;
+	unsigned burst_pol:1;
+	unsigned burst_mode:2;
+	unsigned ifc_mode:3;
+	unsigned ifc_width:5;
+	unsigned ser_preamble_len:4;
+	unsigned ser_preamble:8;
+	unsigned ser_rw_mode:2;
+} ipu_adc_sig_cfg_t;
+
+/*!
+ * Enumeration of ADC template commands.
+ */
+enum {
+	RD_DATA,
+	RD_ACK,
+	RD_WAIT,
+	WR_XADDR,
+	WR_YADDR,
+	WR_ADDR,
+	WR_CMND,
+	WR_DATA,
+};
+
+/*!
+ * Enumeration of ADC template command flow control.
+ */
+enum {
+	SINGLE_STEP,
+	PAUSE,
+	STOP,
+};
+
+
+/*Define template constants*/
+#define     ATM_ADDR_RANGE      0x20	/*offset address of DISP */
+#define     TEMPLATE_BUF_SIZE   0x20	/*size of template */
+
+/*!
+ * Define to create ADC template command entry.
+ */
+#define ipu_adc_template_gen(oc, rs, fc, dat) (((rs) << 29) | ((fc) << 27) | \
+			((oc) << 24) | (dat))
+
+typedef struct {
+	u32 reg;
+	u32 value;
+} ipu_lpmc_reg_t;
+
+#define IPU_LPMC_REG_READ       0x80000000L
+
+#define CSI_MCLK_VF  1
+#define CSI_MCLK_ENC 2
+#define CSI_MCLK_RAW 4
+#define CSI_MCLK_I2C 8
+
+struct ipu_soc;
+/* Common IPU API */
+struct ipu_soc *ipu_get_soc(int id);
+int32_t ipu_init_channel(struct ipu_soc *ipu, ipu_channel_t channel, ipu_channel_params_t *params);
+void ipu_uninit_channel(struct ipu_soc *ipu, ipu_channel_t channel);
+
+static inline bool ipu_can_rotate_in_place(ipu_rotate_mode_t rot)
+{
+#ifdef CONFIG_MXC_IPU_V3D
+	return (rot < IPU_ROTATE_HORIZ_FLIP);
+#else
+	return (rot < IPU_ROTATE_90_RIGHT);
+#endif
+}
+
+int32_t ipu_init_channel_buffer(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
+				uint32_t pixel_fmt,
+				uint16_t width, uint16_t height,
+				uint32_t stride,
+				ipu_rotate_mode_t rot_mode,
+				dma_addr_t phyaddr_0, dma_addr_t phyaddr_1,
+				dma_addr_t phyaddr_2,
+				uint32_t u_offset, uint32_t v_offset);
+
+int32_t ipu_update_channel_buffer(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
+				  uint32_t bufNum, dma_addr_t phyaddr);
+
+int32_t ipu_update_channel_offset(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
+				uint32_t pixel_fmt,
+				uint16_t width, uint16_t height,
+				uint32_t stride,
+				uint32_t u, uint32_t v,
+				uint32_t vertical_offset, uint32_t horizontal_offset);
+
+int32_t ipu_select_buffer(struct ipu_soc *ipu, ipu_channel_t channel,
+			  ipu_buffer_t type, uint32_t bufNum);
+int32_t ipu_select_multi_vdi_buffer(struct ipu_soc *ipu, uint32_t bufNum);
+
+int32_t ipu_link_channels(struct ipu_soc *ipu, ipu_channel_t src_ch, ipu_channel_t dest_ch);
+int32_t ipu_unlink_channels(struct ipu_soc *ipu, ipu_channel_t src_ch, ipu_channel_t dest_ch);
+
+int32_t ipu_is_channel_busy(struct ipu_soc *ipu, ipu_channel_t channel);
+int32_t ipu_check_buffer_ready(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
+		uint32_t bufNum);
+void ipu_clear_buffer_ready(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type,
+		uint32_t bufNum);
+uint32_t ipu_get_cur_buffer_idx(struct ipu_soc *ipu, ipu_channel_t channel, ipu_buffer_t type);
+int32_t ipu_enable_channel(struct ipu_soc *ipu, ipu_channel_t channel);
+int32_t ipu_disable_channel(struct ipu_soc *ipu, ipu_channel_t channel, bool wait_for_stop);
+int32_t ipu_swap_channel(struct ipu_soc *ipu, ipu_channel_t from_ch, ipu_channel_t to_ch);
+
+int32_t ipu_enable_csi(struct ipu_soc *ipu, uint32_t csi);
+int32_t ipu_disable_csi(struct ipu_soc *ipu, uint32_t csi);
+
+int ipu_lowpwr_display_enable(void);
+int ipu_lowpwr_display_disable(void);
+
+void ipu_enable_irq(struct ipu_soc *ipu, uint32_t irq);
+void ipu_disable_irq(struct ipu_soc *ipu, uint32_t irq);
+void ipu_clear_irq(struct ipu_soc *ipu, uint32_t irq);
+int ipu_request_irq(struct ipu_soc *ipu, uint32_t irq,
+		    irqreturn_t(*handler) (int, void *),
+		    uint32_t irq_flags, const char *devname, void *dev_id);
+void ipu_free_irq(struct ipu_soc *ipu, uint32_t irq, void *dev_id);
+bool ipu_get_irq_status(struct ipu_soc *ipu, uint32_t irq);
+void ipu_set_csc_coefficients(struct ipu_soc *ipu, ipu_channel_t channel, int32_t param[][3]);
+
+/* two stripe calculations */
+struct stripe_param{
+	unsigned int input_width; /* width of the input stripe */
+	unsigned int output_width; /* width of the output stripe */
+	unsigned int input_column; /* the first column on the input stripe */
+	unsigned int output_column; /* the first column on the output stripe */
+	unsigned int idr;
+	/* inverse downisizing ratio parameter; expressed as a power of 2 */
+	unsigned int irr;
+	/* inverse resizing ratio parameter; expressed as a multiple of 2^-13 */
+};
+int ipu_calc_stripes_sizes(const unsigned int input_frame_width,
+				unsigned int output_frame_width,
+				const unsigned int maximal_stripe_width,
+				const unsigned long long cirr,
+				const unsigned int equal_stripes,
+				u32 input_pixelformat,
+				u32 output_pixelformat,
+				struct stripe_param *left,
+				struct stripe_param *right);
+
+/* SDC API */
+int32_t ipu_sdc_init_panel(ipu_panel_t panel,
+			   uint32_t pixel_clk,
+			   uint16_t width, uint16_t height,
+			   uint32_t pixel_fmt,
+			   uint16_t hStartWidth, uint16_t hSyncWidth,
+			   uint16_t hEndWidth, uint16_t vStartWidth,
+			   uint16_t vSyncWidth, uint16_t vEndWidth,
+			   ipu_di_signal_cfg_t sig);
+
+int32_t ipu_sdc_set_global_alpha(bool enable, uint8_t alpha);
+int32_t ipu_sdc_set_color_key(ipu_channel_t channel, bool enable,
+			      uint32_t colorKey);
+int32_t ipu_sdc_set_brightness(uint8_t value);
+
+int32_t ipu_init_sync_panel(struct ipu_soc *ipu, int disp,
+			    uint32_t pixel_clk,
+			    uint16_t width, uint16_t height,
+			    uint32_t pixel_fmt,
+			    uint16_t h_start_width, uint16_t h_sync_width,
+			    uint16_t h_end_width, uint16_t v_start_width,
+			    uint16_t v_sync_width, uint16_t v_end_width,
+			    uint32_t v_to_h_sync, ipu_di_signal_cfg_t sig);
+
+void ipu_uninit_sync_panel(struct ipu_soc *ipu, int disp);
+
+int32_t ipu_disp_set_window_pos(struct ipu_soc *ipu, ipu_channel_t channel, int16_t x_pos,
+				int16_t y_pos);
+int32_t ipu_disp_get_window_pos(struct ipu_soc *ipu, ipu_channel_t channel, int16_t *x_pos,
+				int16_t *y_pos);
+int32_t ipu_disp_set_global_alpha(struct ipu_soc *ipu, ipu_channel_t channel, bool enable,
+				  uint8_t alpha);
+int32_t ipu_disp_set_color_key(struct ipu_soc *ipu, ipu_channel_t channel, bool enable,
+			       uint32_t colorKey);
+int32_t ipu_disp_set_gamma_correction(struct ipu_soc *ipu, ipu_channel_t channel, bool enable,
+				int constk[], int slopek[]);
+
+int ipu_init_async_panel(struct ipu_soc *ipu, int disp, int type, uint32_t cycle_time,
+			 uint32_t pixel_fmt, ipu_adc_sig_cfg_t sig);
+void ipu_disp_direct_write(struct ipu_soc *ipu, ipu_channel_t channel, u32 value, u32 offset);
+void ipu_reset_disp_panel(struct ipu_soc *ipu);
+
+/* ADC API */
+int32_t ipu_adc_write_template(display_port_t disp, uint32_t *pCmd,
+			       bool write);
+
+int32_t ipu_adc_set_update_mode(ipu_channel_t channel,
+				ipu_adc_update_mode_t mode,
+				uint32_t refresh_rate, unsigned long addr,
+				uint32_t *size);
+
+int32_t ipu_adc_get_snooping_status(uint32_t *statl, uint32_t *stath);
+
+int32_t ipu_adc_write_cmd(display_port_t disp, cmddata_t type,
+			  uint32_t cmd, const uint32_t *params,
+			  uint16_t numParams);
+
+int32_t ipu_adc_init_panel(display_port_t disp,
+			   uint16_t width, uint16_t height,
+			   uint32_t pixel_fmt,
+			   uint32_t stride,
+			   ipu_adc_sig_cfg_t sig,
+			   display_addressing_t addr,
+			   uint32_t vsync_width, vsync_t mode);
+
+int32_t ipu_adc_init_ifc_timing(display_port_t disp, bool read,
+				uint32_t cycle_time,
+				uint32_t up_time,
+				uint32_t down_time,
+				uint32_t read_latch_time, uint32_t pixel_clk);
+
+/* CMOS Sensor Interface API */
+int32_t ipu_csi_init_interface(struct ipu_soc *ipu, uint16_t width, uint16_t height,
+			       uint32_t pixel_fmt, ipu_csi_signal_cfg_t sig);
+
+int32_t ipu_csi_get_sensor_protocol(struct ipu_soc *ipu, uint32_t csi);
+
+int32_t ipu_csi_enable_mclk(struct ipu_soc *ipu, int src, bool flag, bool wait);
+
+static inline int32_t ipu_csi_enable_mclk_if(struct ipu_soc *ipu, int src, uint32_t csi,
+		bool flag, bool wait)
+{
+#ifdef CONFIG_MXC_IPU_V1
+	return ipu_csi_enable_mclk(ipu, src, flag, wait);
+#else
+	return ipu_csi_enable_mclk(ipu, csi, flag, wait);
+#endif
+}
+
+int ipu_csi_read_mclk_flag(void);
+
+void ipu_csi_flash_strobe(bool flag);
+
+void ipu_csi_get_window_size(struct ipu_soc *ipu, uint32_t *width, uint32_t *height, uint32_t csi);
+
+void ipu_csi_set_window_size(struct ipu_soc *ipu, uint32_t width, uint32_t height, uint32_t csi);
+
+void ipu_csi_set_window_pos(struct ipu_soc *ipu, uint32_t left, uint32_t top, uint32_t csi);
+
+/* Post Filter functions */
+int32_t ipu_pf_set_pause_row(uint32_t pause_row);
+
+uint32_t bytes_per_pixel(uint32_t fmt);
+
 /* IPU device */
 struct ipu_pos {
 	u32 x;