ENGR00160860-1 hdmi audio driver

Audio driver for i.Mx built-in HDMI Transmitter.

* Uses HDMI Transmitter's built-in DMA.
* Adds IEC958-style digital audio header info to the raw audio.
* Gets pixel clock from the IPU driver and calculates clock
  regenerator values (cts and N).
* Move ipu_id, and disp_id from the HDMI's platform data to the
  HDMI mfd's platform data. Saves them in the hdmi mfd.

Signed-off-by: Alan Tull <alan.tull@freescale.com>

9 files changed, 228 insertions, 25 deletions

diff --git a/arch/arm/configs/imx6_defconfig b/arch/arm/configs/imx6_defconfig
index 81f9dd6a89f..550d63a89c3 100644
--- a/arch/arm/configs/imx6_defconfig
+++ b/arch/arm/configs/imx6_defconfig
@@ -1443,9 +1443,6 @@ CONFIG_SND_DRIVERS=y
 CONFIG_SND_ARM=y
 CONFIG_SND_SPI=y
 CONFIG_SND_USB=y
-# CONFIG_SND_USB_AUDIO is not set
-# CONFIG_SND_USB_UA101 is not set
-# CONFIG_SND_USB_CAIAQ is not set
 CONFIG_SND_SOC=y
 # CONFIG_SND_SOC_CACHE_LZO is not set
 CONFIG_SND_SOC_AC97_BUS=y
@@ -1454,10 +1451,12 @@ CONFIG_SND_MXC_SOC_MX2=y
 CONFIG_SND_MXC_SOC_SPDIF_DAI=y
 CONFIG_SND_SOC_IMX_CS42888=y
 CONFIG_SND_SOC_IMX_SPDIF=y
+CONFIG_SND_SOC_IMX_HDMI=y
 CONFIG_SND_SOC_I2C_AND_SPI=y
 # CONFIG_SND_SOC_ALL_CODECS is not set
 CONFIG_SND_SOC_MXC_SPDIF=y
 CONFIG_SND_SOC_CS42888=y
+CONFIG_SND_SOC_MXC_HDMI=y
 # CONFIG_SOUND_PRIME is not set
 CONFIG_AC97_BUS=y
 CONFIG_HID_SUPPORT=y
diff --git a/arch/arm/mach-mx6/board-mx6q_sabreauto.c b/arch/arm/mach-mx6/board-mx6q_sabreauto.c
index 7ef2be92f06..5f76cbc3a18 100644
--- a/arch/arm/mach-mx6/board-mx6q_sabreauto.c
+++ b/arch/arm/mach-mx6/board-mx6q_sabreauto.c
@@ -767,6 +767,9 @@ static void hdmi_init(int ipu_id, int disp_id)
 
 static struct fsl_mxc_hdmi_platform_data hdmi_data = {
 	.init = hdmi_init,
+};
+
+static struct fsl_mxc_hdmi_core_platform_data hdmi_core_data = {
 	.ipu_id = 0,
 	.disp_id = 0,
 };
@@ -942,7 +945,7 @@ static void __init mx6_board_init(void)
 			ARRAY_SIZE(mx6q_sabreauto_esai_record_pads));
 
 	mx6q_sabreauto_init_uart();
-	imx6q_add_mxc_hdmi_core();
+	imx6q_add_mxc_hdmi_core(&hdmi_core_data);
 
 	imx6q_add_ipuv3(0, &ipu_data[0]);
 	imx6q_add_ipuv3(1, &ipu_data[1]);
@@ -1018,6 +1021,9 @@ static void __init mx6_board_init(void)
 	imx6q_add_spdif(&mxc_spdif_data);
 	imx6q_add_spdif_dai();
 	imx6q_add_spdif_audio_device();
+
+	imx6q_add_hdmi_soc();
+	imx6q_add_hdmi_soc_dai();
 }
 
 extern void __iomem *twd_base;
diff --git a/arch/arm/mach-mx6/devices-imx6q.h b/arch/arm/mach-mx6/devices-imx6q.h
index dd83e095b6a..d010b62436c 100644
--- a/arch/arm/mach-mx6/devices-imx6q.h
+++ b/arch/arm/mach-mx6/devices-imx6q.h
@@ -117,8 +117,8 @@ extern const struct imx_mxc_hdmi_data imx6q_mxc_hdmi_data __initconst;
 	imx_add_mxc_hdmi(&imx6q_mxc_hdmi_data, pdata)
 
 extern const struct imx_mxc_hdmi_core_data imx6q_mxc_hdmi_core_data __initconst;
-#define imx6q_add_mxc_hdmi_core()		\
-	imx_add_mxc_hdmi_core(&imx6q_mxc_hdmi_core_data)
+#define imx6q_add_mxc_hdmi_core(pdata)	\
+	imx_add_mxc_hdmi_core(&imx6q_mxc_hdmi_core_data, pdata)
 
 extern const struct imx_vpu_data imx6q_vpu_data __initconst;
 #define imx6q_add_vpu() imx_add_vpu(&imx6q_vpu_data)
@@ -158,3 +158,8 @@ extern const struct imx_spdif_dai_data imx6q_spdif_dai_data __initconst;
 #define imx6q_add_spdif_dai()	imx_add_spdif_dai(&imx6q_spdif_dai_data)
 
 #define imx6q_add_spdif_audio_device(pdata)	imx_add_spdif_audio_device()
+
+#define imx6q_add_hdmi_soc() imx_add_hdmi_soc()
+extern const struct imx_hdmi_soc_data imx6q_imx_hdmi_soc_dai_data __initconst;
+#define imx6q_add_hdmi_soc_dai() \
+	imx_add_hdmi_soc_dai(&imx6q_imx_hdmi_soc_dai_data)
diff --git a/arch/arm/plat-mxc/devices/Makefile b/arch/arm/plat-mxc/devices/Makefile
index 96f6bbbaec7..7aea20f8fda 100644
--- a/arch/arm/plat-mxc/devices/Makefile
+++ b/arch/arm/plat-mxc/devices/Makefile
@@ -53,4 +53,6 @@ obj-$(CONFIG_IMX_HAVE_PLATFORM_FSL_USB_WAKEUP) += platform-fsl-usb2-wakeup.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_PM) += platform-imx-pm.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_HDMI) +=  platform-mxc_hdmi.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_HDMI) +=  platform-mxc-hdmi-core.o
+obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_HDMI) += platform-imx-hdmi-soc.o
+obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_HDMI) += platform-imx-hdmi-soc-dai.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_ASRC) += platform-imx-asrc.o
diff --git a/arch/arm/plat-mxc/devices/platform-imx-hdmi-soc-dai.c b/arch/arm/plat-mxc/devices/platform-imx-hdmi-soc-dai.c
new file mode 100644
index 00000000000..813f954517b
--- /dev/null
+++ b/arch/arm/plat-mxc/devices/platform-imx-hdmi-soc-dai.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <mach/hardware.h>
+#include <mach/devices-common.h>
+
+#define imx_hdmi_soc_data_entry_single(soc)				\
+	{								\
+		.irq = soc ## _INT_HDMI_TX,				\
+	}
+
+#ifdef CONFIG_SOC_IMX6Q
+const struct imx_hdmi_soc_data imx6q_imx_hdmi_soc_dai_data __initconst =
+			imx_hdmi_soc_data_entry_single(MX6Q);
+#endif
+
+struct platform_device *__init imx_add_hdmi_soc_dai(
+		const struct imx_hdmi_soc_data *data)
+{
+	struct resource res[] = {
+		{
+			.start = data->irq,
+			.end = data->irq,
+			.flags = IORESOURCE_IRQ,
+		},
+	};
+
+	return imx_add_platform_device("imx-hdmi-soc-dai", 0,
+				res, ARRAY_SIZE(res), NULL, 0);
+}
diff --git a/arch/arm/plat-mxc/devices/platform-imx-hdmi-soc.c b/arch/arm/plat-mxc/devices/platform-imx-hdmi-soc.c
new file mode 100644
index 00000000000..33c8a685e8a
--- /dev/null
+++ b/arch/arm/plat-mxc/devices/platform-imx-hdmi-soc.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <mach/hardware.h>
+#include <mach/devices-common.h>
+
+struct platform_device *__init imx_add_hdmi_soc(void)
+{	return imx_add_platform_device("mxc_hdmi_soc", 0,
+				       NULL, 0, NULL, 0);
+}
+
diff --git a/arch/arm/plat-mxc/devices/platform-mxc-hdmi-core.c b/arch/arm/plat-mxc/devices/platform-mxc-hdmi-core.c
index bee2de3d2de..e0c1906166a 100644
--- a/arch/arm/plat-mxc/devices/platform-mxc-hdmi-core.c
+++ b/arch/arm/plat-mxc/devices/platform-mxc-hdmi-core.c
@@ -34,7 +34,8 @@ const struct imx_mxc_hdmi_core_data imx6q_mxc_hdmi_core_data __initconst =
 #endif
 
 struct platform_device *__init imx_add_mxc_hdmi_core(
-	const struct imx_mxc_hdmi_core_data *data)
+		const struct imx_mxc_hdmi_core_data *data,
+		const struct fsl_mxc_hdmi_core_platform_data *pdata)
 {
 	struct resource res[] = {
 		{
@@ -45,6 +46,5 @@ struct platform_device *__init imx_add_mxc_hdmi_core(
 	};
 
 	return imx_add_platform_device_dmamask("mxc_hdmi_core", -1,
-					res, ARRAY_SIZE(res), NULL, 0,
-					DMA_BIT_MASK(32));
+		res, ARRAY_SIZE(res), pdata, sizeof(*pdata), DMA_BIT_MASK(32));
 }
diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h
index fdb306441a8..d0d9b8029d2 100644
--- a/arch/arm/plat-mxc/include/mach/devices-common.h
+++ b/arch/arm/plat-mxc/include/mach/devices-common.h
@@ -553,7 +553,8 @@ struct imx_mxc_hdmi_core_data {
 };
 
 struct platform_device *__init imx_add_mxc_hdmi_core(
-	const struct imx_mxc_hdmi_core_data *data);
+		const struct imx_mxc_hdmi_core_data *data,
+		const struct fsl_mxc_hdmi_core_platform_data *pdata);
 
 #include <mach/mxc_asrc.h>
 struct imx_imx_asrc_data {
@@ -571,3 +572,11 @@ struct imx_imx_asrc_data {
 struct platform_device *__init imx_add_imx_asrc(
 		const struct imx_imx_asrc_data *data,
 		const struct imx_asrc_platform_data *pdata);
+
+struct imx_hdmi_soc_data {
+	resource_size_t irq;
+};
+struct platform_device *__init imx_add_hdmi_soc(void);
+
+struct platform_device *__init imx_add_hdmi_soc_dai(
+		const struct imx_hdmi_soc_data *data);
diff --git a/arch/arm/plat-mxc/include/mach/mxc_hdmi.h b/arch/arm/plat-mxc/include/mach/mxc_hdmi.h
index 23ad1827ff3..a7f22de9b40 100644
--- a/arch/arm/plat-mxc/include/mach/mxc_hdmi.h
+++ b/arch/arm/plat-mxc/include/mach/mxc_hdmi.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
  */
 
 /*
@@ -177,17 +177,6 @@
 #define HDMI_FC_SPDDEVICEINF                    0x1062
 #define HDMI_FC_AUDSCONF                        0x1063
 #define HDMI_FC_AUDSSTAT                        0x1064
-#define HDMI_FC_AUDSV                           0x1065
-#define HDMI_FC_AUDSU                           0x1066
-#define HDMI_FC_AUDSCHNLS0                      0x1067
-#define HDMI_FC_AUDSCHNLS1                      0x1068
-#define HDMI_FC_AUDSCHNLS2                      0x1069
-#define HDMI_FC_AUDSCHNLS3                      0x106A
-#define HDMI_FC_AUDSCHNLS4                      0x106B
-#define HDMI_FC_AUDSCHNLS5                      0x106C
-#define HDMI_FC_AUDSCHNLS6                      0x106D
-#define HDMI_FC_AUDSCHNLS7                      0x106E
-#define HDMI_FC_AUDSCHNLS8                      0x106F
 #define HDMI_FC_DATACH0FILL                     0x1070
 #define HDMI_FC_DATACH1FILL                     0x1071
 #define HDMI_FC_DATACH2FILL                     0x1072
@@ -381,9 +370,6 @@
 #define HDMI_AUD_CONF1                          0x3101
 #define HDMI_AUD_INT                            0x3102
 #define HDMI_AUD_CONF2                          0x3103
-#define HDMI_AUD_SPDIF0                         0x3300
-#define HDMI_AUD_SPDIF                          0x3301
-#define HDMI_AUD_SPDIFINT                       0x3302
 #define HDMI_AUD_N1                             0x3200
 #define HDMI_AUD_N2                             0x3201
 #define HDMI_AUD_N3                             0x3202
@@ -398,6 +384,7 @@
 #define HDMI_AUD_HBR_MASK                       0x3404
 
 /* Generic Parallel Audio Interface Registers */
+/* Not used as GPAUD interface is not enabled in hw */
 #define HDMI_GP_CONF0                           0x3500
 #define HDMI_GP_CONF1                           0x3501
 #define HDMI_GP_CONF2                           0x3502
@@ -589,6 +576,22 @@ enum {
 	HDMI_IH_MUTE_I2CMPHY_STAT0_I2CMPHYDONE = 0x2,
 	HDMI_IH_MUTE_I2CMPHY_STAT0_I2CMPHYERROR = 0x1,
 
+/* IH_AHBDMAAUD_STAT0 field values */
+	HDMI_IH_AHBDMAAUD_STAT0_ERROR = 0x20,
+	HDMI_IH_AHBDMAAUD_STAT0_LOST = 0x10,
+	HDMI_IH_AHBDMAAUD_STAT0_RETRY = 0x08,
+	HDMI_IH_AHBDMAAUD_STAT0_DONE = 0x04,
+	HDMI_IH_AHBDMAAUD_STAT0_BUFFFULL = 0x02,
+	HDMI_IH_AHBDMAAUD_STAT0_BUFFEMPTY = 0x01,
+
+/* IH_MUTE_AHBDMAAUD_STAT0 field values */
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_ERROR = 0x20,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_LOST = 0x10,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_RETRY = 0x08,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_DONE = 0x04,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_BUFFFULL = 0x02,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_BUFFEMPTY = 0x01,
+
 /* IH_MUTE field values */
 	HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT = 0x2,
 	HDMI_IH_MUTE_MUTE_ALL_INTERRUPT = 0x1,
@@ -684,10 +687,66 @@ enum {
 	HDMI_FC_INVIDCONF_IN_I_P_INTERLACED = 0x1,
 	HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE = 0x0,
 
+/* FC_AUDICONF0 field values */
+	HDMI_FC_AUDICONF0_CC_OFFSET = 4,
+	HDMI_FC_AUDICONF0_CC_MASK = 0x70,
+	HDMI_FC_AUDICONF0_CT_OFFSET = 0,
+	HDMI_FC_AUDICONF0_CT_MASK = 0xF,
+
+/* FC_AUDICONF1 field values */
+	HDMI_FC_AUDICONF1_SS_OFFSET = 3,
+	HDMI_FC_AUDICONF1_SS_MASK = 0x18,
+	HDMI_FC_AUDICONF1_SF_OFFSET = 0,
+	HDMI_FC_AUDICONF1_SF_MASK = 0x7,
+
+/* FC_AUDICONF3 field values */
+	HDMI_FC_AUDICONF3_LFEPBL_OFFSET = 5,
+	HDMI_FC_AUDICONF3_LFEPBL_MASK = 0x60,
+	HDMI_FC_AUDICONF3_DM_INH_OFFSET = 4,
+	HDMI_FC_AUDICONF3_DM_INH_MASK = 0x10,
+	HDMI_FC_AUDICONF3_LSV_OFFSET = 0,
+	HDMI_FC_AUDICONF3_LSV_MASK = 0xF,
+
+/* FC_AUDSCHNLS0 field values */
+	HDMI_FC_AUDSCHNLS0_CGMSA_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS0_CGMSA_MASK = 0x30,
+	HDMI_FC_AUDSCHNLS0_COPYRIGHT_OFFSET = 0,
+	HDMI_FC_AUDSCHNLS0_COPYRIGHT_MASK = 0x01,
+
+/* FC_AUDSCHNLS3-6 field values */
+	HDMI_FC_AUDSCHNLS3_OIEC_CH0_OFFSET = 0,
+	HDMI_FC_AUDSCHNLS3_OIEC_CH0_MASK = 0x0f,
+	HDMI_FC_AUDSCHNLS3_OIEC_CH1_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS3_OIEC_CH1_MASK = 0xf0,
+	HDMI_FC_AUDSCHNLS4_OIEC_CH2_OFFSET = 0,
+	HDMI_FC_AUDSCHNLS4_OIEC_CH2_MASK = 0x0f,
+	HDMI_FC_AUDSCHNLS4_OIEC_CH3_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS4_OIEC_CH3_MASK = 0xf0,
+
+	HDMI_FC_AUDSCHNLS5_OIEC_CH0_OFFSET = 0,
+	HDMI_FC_AUDSCHNLS5_OIEC_CH0_MASK = 0x0f,
+	HDMI_FC_AUDSCHNLS5_OIEC_CH1_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS5_OIEC_CH1_MASK = 0xf0,
+	HDMI_FC_AUDSCHNLS6_OIEC_CH2_OFFSET = 0,
+	HDMI_FC_AUDSCHNLS6_OIEC_CH2_MASK = 0x0f,
+	HDMI_FC_AUDSCHNLS6_OIEC_CH3_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS6_OIEC_CH3_MASK = 0xf0,
+
+/* HDMI_FC_AUDSCHNLS7 field values */
+	HDMI_FC_AUDSCHNLS7_ACCURACY_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS7_ACCURACY_MASK = 0x30,
+
+/* HDMI_FC_AUDSCHNLS8 field values */
+	HDMI_FC_AUDSCHNLS8_ORIGSAMPFREQ_MASK = 0xf0,
+	HDMI_FC_AUDSCHNLS8_ORIGSAMPFREQ_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS8_WORDLEGNTH_MASK = 0x0f,
+	HDMI_FC_AUDSCHNLS8_WORDLEGNTH_OFFSET = 0,
+
 /* FC_AUDSCONF field values */
 	HDMI_FC_AUDSCONF_AUD_PACKET_SAMPFIT_MASK = 0xF0,
 	HDMI_FC_AUDSCONF_AUD_PACKET_SAMPFIT_OFFSET = 4,
 	HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_MASK = 0x1,
+	HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_OFFSET = 0,
 	HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_LAYOUT1 = 0x1,
 	HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_LAYOUT0 = 0x0,
 
@@ -808,6 +867,54 @@ enum {
 	HDMI_PHY_I2CM_OPERATION_ADDR_WRITE = 0x10,
 	HDMI_PHY_I2CM_OPERATION_ADDR_READ = 0x1,
 
+/* AUD_CTS3 field values */
+	HDMI_AUD_CTS3_N_SHIFT_OFFSET = 5,
+	HDMI_AUD_CTS3_N_SHIFT_MASK = 0xe0,
+	HDMI_AUD_CTS3_N_SHIFT_1 = 0,
+	HDMI_AUD_CTS3_N_SHIFT_16 = 0x20,
+	HDMI_AUD_CTS3_N_SHIFT_32 = 0x40,
+	HDMI_AUD_CTS3_N_SHIFT_64 = 0x60,
+	HDMI_AUD_CTS3_N_SHIFT_128 = 0x80,
+	HDMI_AUD_CTS3_N_SHIFT_256 = 0xa0,
+	/* note that the CTS3 MANUAL bit has been removed
+	   from our part. Can't set it, will read as 0. */
+	HDMI_AUD_CTS3_CTS_MANUAL = 0x10,
+	HDMI_AUD_CTS3_AUDCTS19_16_MASK = 0x0f,
+
+/* AHB_DMA_CONF0 field values */
+	HDMI_AHB_DMA_CONF0_SW_FIFO_RST_OFFSET = 7,
+	HDMI_AHB_DMA_CONF0_SW_FIFO_RST_MASK = 0x80,
+	HDMI_AHB_DMA_CONF0_HBR = 0x10,
+	HDMI_AHB_DMA_CONF0_EN_HLOCK_OFFSET = 3,
+	HDMI_AHB_DMA_CONF0_EN_HLOCK_MASK = 0x08,
+	HDMI_AHB_DMA_CONF0_INCR_TYPE_OFFSET = 1,
+	HDMI_AHB_DMA_CONF0_INCR_TYPE_MASK = 0x06,
+	HDMI_AHB_DMA_CONF0_INCR4 = 0x0,
+	HDMI_AHB_DMA_CONF0_INCR8 = 0x2,
+	HDMI_AHB_DMA_CONF0_INCR16 = 0x4,
+	HDMI_AHB_DMA_CONF0_BURST_MODE = 0x1,
+
+/* HDMI_AHB_DMA_START field values */
+	HDMI_AHB_DMA_START_START_OFFSET = 0,
+	HDMI_AHB_DMA_START_START_MASK = 0x01,
+
+/* HDMI_AHB_DMA_STOP field values */
+	HDMI_AHB_DMA_STOP_STOP_OFFSET = 0,
+	HDMI_AHB_DMA_STOP_STOP_MASK = 0x01,
+
+/* AHB_DMA_STAT, AHB_DMA_INT, AHB_DMA_MASK, AHB_DMA_POL field values */
+	HDMI_AHB_DMA_DONE = 0x80,
+	HDMI_AHB_DMA_RETRY_SPLIT = 0x40,
+	HDMI_AHB_DMA_LOSTOWNERSHIP = 0x20,
+	HDMI_AHB_DMA_ERROR = 0x10,
+	HDMI_AHB_DMA_FIFO_THREMPTY = 0x04,
+	HDMI_AHB_DMA_FIFO_FULL = 0x02,
+	HDMI_AHB_DMA_FIFO_EMPTY = 0x01,
+
+/* AHB_DMA_BUFFSTAT, AHB_DMA_BUFFINT, AHB_DMA_BUFFMASK, AHB_DMA_BUFFPOL field values */
+	HDMI_AHB_DMA_BUFFSTAT_FULL = 0x02,
+	HDMI_AHB_DMA_BUFFSTAT_EMPTY = 0x01,
+
 /* MC_CLKDIS field values */
 	HDMI_MC_CLKDIS_HDCPCLK_DISABLE_MASK = 0x40,
 	HDMI_MC_CLKDIS_HDCPCLK_DISABLE_DISABLE = 0x40,