aboutsummaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 18:32:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 18:32:45 -0700
commitac9e7ab32fe42489808c8d9fc89ad413d2805766 (patch)
treed5628b62e23fae6a0acd000a7bb16030c89f2073 /drivers
parent2a2bf85f05e42b12ea6bfe821e2d19221cf93555 (diff)
parentb98138e00d96abc85b100c9b6886f105d9868ab5 (diff)
Merge tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc cleanups, part 2 from Olof Johansson: "A shorter cleanup branch submitted separately due to dependencies with some of the previous topics. Major thing here is that the Broadcom bcmring platform is removed. It's an SoC that's used on some stationary VoIP platforms, and is in desperate need of some cleanup. Broadcom came back and suggested that we just deprecate the platform for now, since they aren't going to spend the resources needed on cleaning it up, and there are no users of the platform directly from mainline." Fix some conflicts due to BCM2835 getting added next to the removed BCMRING, and removal of tegra files that had been converted to devicetree. * tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: Orion5x: ts78xx: Add IOMEM for virtual addresses. ARM: ux500: use __iomem pointers for MMIO ARM: Remove mach-bcmring ARM: clps711x: Remove board support for CEIVA ARM: clps711x: Fix register definitions ARM: clps711x: Fix lowlevel debug-macro ARM: clps711x: Added simple clock framework pinctrl: tegra: move pinconf-tegra.h content into drivers/pinctrl ARM: tegra: delete unused headers ARM: tegra: remove useless includes of <mach/*.h> ARM: tegra: remove dead code
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pinctrl/pinctrl-tegra.c2
-rw-r--r--drivers/pinctrl/pinctrl-tegra.h44
-rw-r--r--drivers/usb/phy/tegra_usb_phy.c1
-rw-r--r--drivers/video/Kconfig12
-rw-r--r--drivers/video/Makefile1
-rw-r--r--drivers/video/epson1355fb.c749
6 files changed, 44 insertions, 765 deletions
diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c
index ae52e4e5d098..729b686c3ad2 100644
--- a/drivers/pinctrl/pinctrl-tegra.c
+++ b/drivers/pinctrl/pinctrl-tegra.c
@@ -30,8 +30,6 @@
#include <linux/pinctrl/pinconf.h>
#include <linux/slab.h>
-#include <mach/pinconf-tegra.h>
-
#include "core.h"
#include "pinctrl-tegra.h"
diff --git a/drivers/pinctrl/pinctrl-tegra.h b/drivers/pinctrl/pinctrl-tegra.h
index 705c007a38cc..62e380965c68 100644
--- a/drivers/pinctrl/pinctrl-tegra.h
+++ b/drivers/pinctrl/pinctrl-tegra.h
@@ -16,6 +16,50 @@
#ifndef __PINMUX_TEGRA_H__
#define __PINMUX_TEGRA_H__
+enum tegra_pinconf_param {
+ /* argument: tegra_pinconf_pull */
+ TEGRA_PINCONF_PARAM_PULL,
+ /* argument: tegra_pinconf_tristate */
+ TEGRA_PINCONF_PARAM_TRISTATE,
+ /* argument: Boolean */
+ TEGRA_PINCONF_PARAM_ENABLE_INPUT,
+ /* argument: Boolean */
+ TEGRA_PINCONF_PARAM_OPEN_DRAIN,
+ /* argument: Boolean */
+ TEGRA_PINCONF_PARAM_LOCK,
+ /* argument: Boolean */
+ TEGRA_PINCONF_PARAM_IORESET,
+ /* argument: Boolean */
+ TEGRA_PINCONF_PARAM_HIGH_SPEED_MODE,
+ /* argument: Boolean */
+ TEGRA_PINCONF_PARAM_SCHMITT,
+ /* argument: Boolean */
+ TEGRA_PINCONF_PARAM_LOW_POWER_MODE,
+ /* argument: Integer, range is HW-dependant */
+ TEGRA_PINCONF_PARAM_DRIVE_DOWN_STRENGTH,
+ /* argument: Integer, range is HW-dependant */
+ TEGRA_PINCONF_PARAM_DRIVE_UP_STRENGTH,
+ /* argument: Integer, range is HW-dependant */
+ TEGRA_PINCONF_PARAM_SLEW_RATE_FALLING,
+ /* argument: Integer, range is HW-dependant */
+ TEGRA_PINCONF_PARAM_SLEW_RATE_RISING,
+};
+
+enum tegra_pinconf_pull {
+ TEGRA_PINCONFIG_PULL_NONE,
+ TEGRA_PINCONFIG_PULL_DOWN,
+ TEGRA_PINCONFIG_PULL_UP,
+};
+
+enum tegra_pinconf_tristate {
+ TEGRA_PINCONFIG_DRIVEN,
+ TEGRA_PINCONFIG_TRISTATE,
+};
+
+#define TEGRA_PINCONF_PACK(_param_, _arg_) ((_param_) << 16 | (_arg_))
+#define TEGRA_PINCONF_UNPACK_PARAM(_conf_) ((_conf_) >> 16)
+#define TEGRA_PINCONF_UNPACK_ARG(_conf_) ((_conf_) & 0xffff)
+
/**
* struct tegra_function - Tegra pinctrl mux function
* @name: The name of the function, exported to pinctrl core.
diff --git a/drivers/usb/phy/tegra_usb_phy.c b/drivers/usb/phy/tegra_usb_phy.c
index 4739903245e8..987116f9efcd 100644
--- a/drivers/usb/phy/tegra_usb_phy.c
+++ b/drivers/usb/phy/tegra_usb_phy.c
@@ -28,7 +28,6 @@
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <asm/mach-types.h>
-#include <mach/gpio-tegra.h>
#include <linux/usb/tegra_usb_phy.h>
#include <mach/iomap.h>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index b66d951b8e32..20c33c42600a 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -979,18 +979,6 @@ config FB_PVR2
(<file:drivers/video/pvr2fb.c>). Please see the file
<file:Documentation/fb/pvr2fb.txt>.
-config FB_EPSON1355
- bool "Epson 1355 framebuffer support"
- depends on (FB = y) && ARCH_CEIVA
- select FB_CFB_FILLRECT
- select FB_CFB_COPYAREA
- select FB_CFB_IMAGEBLIT
- help
- Build in support for the SED1355 Epson Research Embedded RAMDAC
- LCD/CRT Controller (since redesignated as the S1D13505) as a
- framebuffer. Product specs at
- <http://vdc.epson.com/>.
-
config FB_S1D13XXX
tristate "Epson S1D13XXX framebuffer support"
depends on FB
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index ee8dafb69e36..194035986af2 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -94,7 +94,6 @@ obj-$(CONFIG_FB_G364) += g364fb.o
obj-$(CONFIG_FB_EP93XX) += ep93xx-fb.o
obj-$(CONFIG_FB_SA1100) += sa1100fb.o
obj-$(CONFIG_FB_HIT) += hitfb.o
-obj-$(CONFIG_FB_EPSON1355) += epson1355fb.o
obj-$(CONFIG_FB_ATMEL) += atmel_lcdfb.o
obj-$(CONFIG_FB_PVR2) += pvr2fb.o
obj-$(CONFIG_FB_VOODOO1) += sstfb.o
diff --git a/drivers/video/epson1355fb.c b/drivers/video/epson1355fb.c
deleted file mode 100644
index 68b9b511ce80..000000000000
--- a/drivers/video/epson1355fb.c
+++ /dev/null
@@ -1,749 +0,0 @@
-/*
- * linux/drivers/video/epson1355fb.c -- Epson S1D13505 frame buffer for 2.5.
- *
- * Epson Research S1D13505 Embedded RAMDAC LCD/CRT Controller
- * (previously known as SED1355)
- *
- * Cf. http://vdc.epson.com/
- *
- *
- * Copyright (C) Hewlett-Packard Company. All rights reserved.
- *
- * Written by Christopher Hoover <ch@hpl.hp.com>
- *
- * Adapted from:
- *
- * linux/drivers/video/skeletonfb.c
- * Modified to new api Jan 2001 by James Simmons (jsimmons@infradead.org)
- * Created 28 Dec 1997 by Geert Uytterhoeven
- *
- * linux/drivers/video/epson1355fb.c (2.4 driver)
- * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive for
- * more details.
- *
- *
- * Noteworthy Issues
- * -----------------
- *
- * This driver is complicated by the fact that this is a 16-bit chip
- * and, on at least one platform (ceiva), we can only do 16-bit reads
- * and writes to the framebuffer. We hide this from user space
- * except in the case of mmap().
- *
- *
- * To Do
- * -----
- *
- * - Test 8-bit pseudocolor mode
- * - Allow setting bpp, virtual resolution
- * - Implement horizontal panning
- * - (maybe) Implement hardware cursor
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/platform_device.h>
-
-#include <asm/types.h>
-#include <asm/io.h>
-#include <linux/uaccess.h>
-
-#include <video/epson1355.h>
-
-struct epson1355_par {
- unsigned long reg_addr;
- u32 pseudo_palette[16];
-};
-
-/* ------------------------------------------------------------------------- */
-
-#if defined(CONFIG_ARM)
-
-# ifdef CONFIG_ARCH_CEIVA
-# include <mach/hardware.h>
-# define EPSON1355FB_BASE_PHYS (CEIVA_PHYS_SED1355)
-# endif
-
-static inline u8 epson1355_read_reg(struct epson1355_par *par, int index)
-{
- return __raw_readb(par->reg_addr + index);
-}
-
-static inline void epson1355_write_reg(struct epson1355_par *par, u8 data, int index)
-{
- __raw_writeb(data, par->reg_addr + index);
-}
-
-#else
-# error "no architecture-specific epson1355_{read,write}_reg"
-#endif
-
-#ifndef EPSON1355FB_BASE_PHYS
-# error "EPSON1355FB_BASE_PHYS is not defined"
-#endif
-
-#define EPSON1355FB_REGS_OFS (0)
-#define EPSON1355FB_REGS_PHYS (EPSON1355FB_BASE_PHYS + EPSON1355FB_REGS_OFS)
-#define EPSON1355FB_REGS_LEN (64)
-
-#define EPSON1355FB_FB_OFS (0x00200000)
-#define EPSON1355FB_FB_PHYS (EPSON1355FB_BASE_PHYS + EPSON1355FB_FB_OFS)
-#define EPSON1355FB_FB_LEN (2 * 1024 * 1024)
-
-/* ------------------------------------------------------------------------- */
-
-static inline u16 epson1355_read_reg16(struct epson1355_par *par, int index)
-{
- u8 lo = epson1355_read_reg(par, index);
- u8 hi = epson1355_read_reg(par, index + 1);
-
- return (hi << 8) | lo;
-}
-
-static inline void epson1355_write_reg16(struct epson1355_par *par, u16 data, int index)
-{
- u8 lo = data & 0xff;
- u8 hi = (data >> 8) & 0xff;
-
- epson1355_write_reg(par, lo, index);
- epson1355_write_reg(par, hi, index + 1);
-}
-
-static inline u32 epson1355_read_reg20(struct epson1355_par *par, int index)
-{
- u8 b0 = epson1355_read_reg(par, index);
- u8 b1 = epson1355_read_reg(par, index + 1);
- u8 b2 = epson1355_read_reg(par, index + 2);
-
- return (b2 & 0x0f) << 16 | (b1 << 8) | b0;
-}
-
-static inline void epson1355_write_reg20(struct epson1355_par *par, u32 data, int index)
-{
- u8 b0 = data & 0xff;
- u8 b1 = (data >> 8) & 0xff;
- u8 b2 = (data >> 16) & 0x0f;
-
- epson1355_write_reg(par, b0, index);
- epson1355_write_reg(par, b1, index + 1);
- epson1355_write_reg(par, b2, index + 2);
-}
-
-/* ------------------------------------------------------------------------- */
-
-static void set_lut(struct epson1355_par *par, u8 index, u8 r, u8 g, u8 b)
-{
- epson1355_write_reg(par, index, REG_LUT_ADDR);
- epson1355_write_reg(par, r, REG_LUT_DATA);
- epson1355_write_reg(par, g, REG_LUT_DATA);
- epson1355_write_reg(par, b, REG_LUT_DATA);
-}
-
-
-/**
- * epson1355fb_setcolreg - sets a color register.
- * @regno: Which register in the CLUT we are programming
- * @red: The red value which can be up to 16 bits wide
- * @green: The green value which can be up to 16 bits wide
- * @blue: The blue value which can be up to 16 bits wide.
- * @transp: If supported the alpha value which can be up to 16 bits wide.
- * @info: frame buffer info structure
- *
- * Returns negative errno on error, or zero on success.
- */
-static int epson1355fb_setcolreg(unsigned regno, unsigned r, unsigned g,
- unsigned b, unsigned transp,
- struct fb_info *info)
-{
- struct epson1355_par *par = info->par;
-
- if (info->var.grayscale)
- r = g = b = (19595 * r + 38470 * g + 7471 * b) >> 16;
-
- switch (info->fix.visual) {
- case FB_VISUAL_TRUECOLOR:
- if (regno >= 16)
- return -EINVAL;
-
- ((u32 *) info->pseudo_palette)[regno] =
- (r & 0xf800) | (g & 0xfc00) >> 5 | (b & 0xf800) >> 11;
-
- break;
- case FB_VISUAL_PSEUDOCOLOR:
- if (regno >= 256)
- return -EINVAL;
-
- set_lut(par, regno, r >> 8, g >> 8, b >> 8);
-
- break;
- default:
- return -ENOSYS;
- }
- return 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-/**
- * epson1355fb_pan_display - Pans the display.
- * @var: frame buffer variable screen structure
- * @info: frame buffer structure that represents a single frame buffer
- *
- * Pan (or wrap, depending on the `vmode' field) the display using the
- * `xoffset' and `yoffset' fields of the `var' structure.
- * If the values don't fit, return -EINVAL.
- *
- * Returns negative errno on error, or zero on success.
- */
-static int epson1355fb_pan_display(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- struct epson1355_par *par = info->par;
- u32 start;
-
- if (var->xoffset != 0) /* not yet ... */
- return -EINVAL;
-
- if (var->yoffset + info->var.yres > info->var.yres_virtual)
- return -EINVAL;
-
- start = (info->fix.line_length >> 1) * var->yoffset;
-
- epson1355_write_reg20(par, start, REG_SCRN1_DISP_START_ADDR0);
-
- return 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-static void lcd_enable(struct epson1355_par *par, int enable)
-{
- u8 mode = epson1355_read_reg(par, REG_DISPLAY_MODE);
-
- if (enable)
- mode |= 1;
- else
- mode &= ~1;
-
- epson1355_write_reg(par, mode, REG_DISPLAY_MODE);
-}
-
-#if defined(CONFIG_ARCH_CEIVA)
-static void backlight_enable(int enable)
-{
- /* ### this should be protected by a spinlock ... */
- u8 pddr = clps_readb(PDDR);
- if (enable)
- pddr |= (1 << 5);
- else
- pddr &= ~(1 << 5);
- clps_writeb(pddr, PDDR);
-}
-#else
-static void backlight_enable(int enable)
-{
-}
-#endif
-
-
-/**
- * epson1355fb_blank - blanks the display.
- * @blank_mode: the blank mode we want.
- * @info: frame buffer structure that represents a single frame buffer
- *
- * Blank the screen if blank_mode != 0, else unblank. Return 0 if
- * blanking succeeded, != 0 if un-/blanking failed due to e.g. a
- * video mode which doesn't support it. Implements VESA suspend
- * and powerdown modes on hardware that supports disabling hsync/vsync:
- * blank_mode == 2: suspend vsync
- * blank_mode == 3: suspend hsync
- * blank_mode == 4: powerdown
- *
- * Returns negative errno on error, or zero on success.
- *
- */
-static int epson1355fb_blank(int blank_mode, struct fb_info *info)
-{
- struct epson1355_par *par = info->par;
-
- switch (blank_mode) {
- case FB_BLANK_UNBLANK:
- case FB_BLANK_NORMAL:
- lcd_enable(par, 1);
- backlight_enable(1);
- break;
- case FB_BLANK_VSYNC_SUSPEND:
- case FB_BLANK_HSYNC_SUSPEND:
- backlight_enable(0);
- break;
- case FB_BLANK_POWERDOWN:
- backlight_enable(0);
- lcd_enable(par, 0);
- break;
- default:
- return -EINVAL;
- }
-
- /* let fbcon do a soft blank for us */
- return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-/*
- * We can't use the cfb generic routines, as we have to limit
- * ourselves to 16-bit or 8-bit loads and stores to this 16-bit
- * chip.
- */
-
-static inline void epson1355fb_fb_writel(unsigned long v, unsigned long *a)
-{
- u16 *p = (u16 *) a;
- u16 l = v & 0xffff;
- u16 h = v >> 16;
-
- fb_writew(l, p);
- fb_writew(h, p + 1);
-}
-
-static inline unsigned long epson1355fb_fb_readl(const unsigned long *a)
-{
- const u16 *p = (u16 *) a;
- u16 l = fb_readw(p);
- u16 h = fb_readw(p + 1);
-
- return (h << 16) | l;
-}
-
-#define FB_READL epson1355fb_fb_readl
-#define FB_WRITEL epson1355fb_fb_writel
-
-/* ------------------------------------------------------------------------- */
-
-static inline unsigned long copy_from_user16(void *to, const void *from,
- unsigned long n)
-{
- u16 *dst = (u16 *) to;
- u16 *src = (u16 *) from;
-
- if (!access_ok(VERIFY_READ, from, n))
- return n;
-
- while (n > 1) {
- u16 v;
- if (__get_user(v, src))
- return n;
-
- fb_writew(v, dst);
-
- src++, dst++;
- n -= 2;
- }
-
- if (n) {
- u8 v;
-
- if (__get_user(v, ((u8 *) src)))
- return n;
-
- fb_writeb(v, dst);
- }
- return 0;
-}
-
-static inline unsigned long copy_to_user16(void *to, const void *from,
- unsigned long n)
-{
- u16 *dst = (u16 *) to;
- u16 *src = (u16 *) from;
-
- if (!access_ok(VERIFY_WRITE, to, n))
- return n;
-
- while (n > 1) {
- u16 v = fb_readw(src);
-
- if (__put_user(v, dst))
- return n;
-
- src++, dst++;
- n -= 2;
- }
-
- if (n) {
- u8 v = fb_readb(src);
-
- if (__put_user(v, ((u8 *) dst)))
- return n;
- }
- return 0;
-}
-
-
-static ssize_t
-epson1355fb_read(struct fb_info *info, char *buf, size_t count, loff_t * ppos)
-{
- unsigned long p = *ppos;
-
- if (p >= info->fix.smem_len)
- return 0;
- if (count >= info->fix.smem_len)
- count = info->fix.smem_len;
- if (count + p > info->fix.smem_len)
- count = info->fix.smem_len - p;
-
- if (count) {
- char *base_addr;
-
- base_addr = info->screen_base;
- count -= copy_to_user16(buf, base_addr + p, count);
- if (!count)
- return -EFAULT;
- *ppos += count;
- }
- return count;
-}
-
-static ssize_t
-epson1355fb_write(struct fb_info *info, const char *buf,
- size_t count, loff_t * ppos)
-{
- unsigned long p = *ppos;
- int err;
-
- /* from fbmem.c except for our own copy_*_user */
- if (p > info->fix.smem_len)
- return -ENOSPC;
- if (count >= info->fix.smem_len)
- count = info->fix.smem_len;
- err = 0;
- if (count + p > info->fix.smem_len) {
- count = info->fix.smem_len - p;
- err = -ENOSPC;
- }
-
- if (count) {
- char *base_addr;
-
- base_addr = info->screen_base;
- count -= copy_from_user16(base_addr + p, buf, count);
- *ppos += count;
- err = -EFAULT;
- }
- if (count)
- return count;
- return err;
-}
-
-/* ------------------------------------------------------------------------- */
-
-static struct fb_ops epson1355fb_fbops = {
- .owner = THIS_MODULE,
- .fb_setcolreg = epson1355fb_setcolreg,
- .fb_pan_display = epson1355fb_pan_display,
- .fb_blank = epson1355fb_blank,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
- .fb_read = epson1355fb_read,
- .fb_write = epson1355fb_write,
-};
-
-/* ------------------------------------------------------------------------- */
-
-static __init unsigned int get_fb_size(struct fb_info *info)
-{
- unsigned int size = 2 * 1024 * 1024;
- char *p = info->screen_base;
-
- /* the 512k framebuffer is aliased at start + 0x80000 * n */
- fb_writeb(1, p);
- fb_writeb(0, p + 0x80000);
- if (!fb_readb(p))
- size = 512 * 1024;
-
- fb_writeb(0, p);
-
- return size;
-}
-
-static int epson1355_width_tab[2][4] __devinitdata =
- { {4, 8, 16, -1}, {9, 12, 16, -1} };
-static int epson1355_bpp_tab[8] __devinitdata = { 1, 2, 4, 8, 15, 16 };
-
-static void __devinit fetch_hw_state(struct fb_info *info, struct epson1355_par *par)
-{
- struct fb_var_screeninfo *var = &info->var;
- struct fb_fix_screeninfo *fix = &info->fix;
- u8 panel, display;
- u16 offset;
- u32 xres, yres;
- u32 xres_virtual, yres_virtual;
- int bpp, lcd_bpp;
- int is_color, is_dual, is_tft;
- int lcd_enabled, crt_enabled;
-
- fix->type = FB_TYPE_PACKED_PIXELS;
-
- display = epson1355_read_reg(par, REG_DISPLAY_MODE);
- bpp = epson1355_bpp_tab[(display >> 2) & 7];
-
- switch (bpp) {
- case 8:
- fix->visual = FB_VISUAL_PSEUDOCOLOR;
- var->bits_per_pixel = 8;
- var->red.offset = var->green.offset = var->blue.offset = 0;
- var->red.length = var->green.length = var->blue.length = 8;
- break;
- case 16:
- /* 5-6-5 RGB */
- fix->visual = FB_VISUAL_TRUECOLOR;
- var->bits_per_pixel = 16;
- var->red.offset = 11;
- var->red.length = 5;
- var->green.offset = 5;
- var->green.length = 6;
- var->blue.offset = 0;
- var->blue.length = 5;
- break;
- default:
- BUG();
- }
- fb_alloc_cmap(&(info->cmap), 256, 0);
-
- panel = epson1355_read_reg(par, REG_PANEL_TYPE);
- is_color = (panel & 0x04) != 0;
- is_dual = (panel & 0x02) != 0;
- is_tft = (panel & 0x01) != 0;
- crt_enabled = (display & 0x02) != 0;
- lcd_enabled = (display & 0x01) != 0;
- lcd_bpp = epson1355_width_tab[is_tft][(panel >> 4) & 3];
-
- xres = (epson1355_read_reg(par, REG_HORZ_DISP_WIDTH) + 1) * 8;
- yres = (epson1355_read_reg16(par, REG_VERT_DISP_HEIGHT0) + 1) *
- ((is_dual && !crt_enabled) ? 2 : 1);
- offset = epson1355_read_reg16(par, REG_MEM_ADDR_OFFSET0) & 0x7ff;
- xres_virtual = offset * 16 / bpp;
- yres_virtual = fix->smem_len / (offset * 2);
-
- var->xres = xres;
- var->yres = yres;
- var->xres_virtual = xres_virtual;
- var->yres_virtual = yres_virtual;
- var->xoffset = var->yoffset = 0;
-
- fix->line_length = offset * 2;
-
- fix->xpanstep = 0; /* no pan yet */
- fix->ypanstep = 1;
- fix->ywrapstep = 0;
- fix->accel = FB_ACCEL_NONE;
-
- var->grayscale = !is_color;
-
-#ifdef DEBUG
- printk(KERN_INFO
- "epson1355fb: xres=%d, yres=%d, "
- "is_color=%d, is_dual=%d, is_tft=%d\n",
- xres, yres, is_color, is_dual, is_tft);
- printk(KERN_INFO
- "epson1355fb: bpp=%d, lcd_bpp=%d, "
- "crt_enabled=%d, lcd_enabled=%d\n",
- bpp, lcd_bpp, crt_enabled, lcd_enabled);
-#endif
-}
-
-
-static void clearfb16(struct fb_info *info)
-{
- u16 *dst = (u16 *) info->screen_base;
- unsigned long n = info->fix.smem_len;
-
- while (n > 1) {
- fb_writew(0, dst);
- dst++, n -= 2;
- }
-
- if (n)
- fb_writeb(0, dst);
-}
-
-static int epson1355fb_remove(struct platform_device *dev)
-{
- struct fb_info *info = platform_get_drvdata(dev);
- struct epson1355_par *par = info->par;
-
- backlight_enable(0);
- if (par) {
- lcd_enable(par, 0);
- if (par && par->reg_addr)
- iounmap((void *) par->reg_addr);
- }
-
- if (info) {
- fb_dealloc_cmap(&info->cmap);
- if (info->screen_base)
- iounmap(info->screen_base);
- framebuffer_release(info);
- }
- release_mem_region(EPSON1355FB_FB_PHYS, EPSON1355FB_FB_LEN);
- release_mem_region(EPSON1355FB_REGS_PHYS, EPSON1355FB_REGS_LEN);
- return 0;
-}
-
-static int __devinit epson1355fb_probe(struct platform_device *dev)
-{
- struct epson1355_par *default_par;
- struct fb_info *info;
- u8 revision;
- int rc = 0;
-
- if (!request_mem_region(EPSON1355FB_REGS_PHYS, EPSON1355FB_REGS_LEN, "S1D13505 registers")) {
- printk(KERN_ERR "epson1355fb: unable to reserve "
- "registers at 0x%0x\n", EPSON1355FB_REGS_PHYS);
- rc = -EBUSY;
- goto bail;
- }
-
- if (!request_mem_region(EPSON1355FB_FB_PHYS, EPSON1355FB_FB_LEN,
- "S1D13505 framebuffer")) {
- printk(KERN_ERR "epson1355fb: unable to reserve "
- "framebuffer at 0x%0x\n", EPSON1355FB_FB_PHYS);
- rc = -EBUSY;
- goto bail;
- }
-
- info = framebuffer_alloc(sizeof(struct epson1355_par), &dev->dev);
- if (!info) {
- rc = -ENOMEM;
- goto bail;
- }
-
- default_par = info->par;
- default_par->reg_addr = (unsigned long) ioremap(EPSON1355FB_REGS_PHYS, EPSON1355FB_REGS_LEN);
- if (!default_par->reg_addr) {
- printk(KERN_ERR "epson1355fb: unable to map registers\n");
- rc = -ENOMEM;
- goto bail;
- }
- info->pseudo_palette = default_par->pseudo_palette;
-
- info->screen_base = ioremap(EPSON1355FB_FB_PHYS, EPSON1355FB_FB_LEN);
- if (!info->screen_base) {
- printk(KERN_ERR "epson1355fb: unable to map framebuffer\n");
- rc = -ENOMEM;
- goto bail;
- }
-
- revision = epson1355_read_reg(default_par, REG_REVISION_CODE);
- if ((revision >> 2) != 3) {
- printk(KERN_INFO "epson1355fb: epson1355 not found\n");
- rc = -ENODEV;
- goto bail;
- }
-
- info->fix.mmio_start = EPSON1355FB_REGS_PHYS;
- info->fix.mmio_len = EPSON1355FB_REGS_LEN;
- info->fix.smem_start = EPSON1355FB_FB_PHYS;
- info->fix.smem_len = get_fb_size(info);
-
- printk(KERN_INFO "epson1355fb: regs mapped at 0x%lx, fb %d KiB mapped at 0x%p\n",
- default_par->reg_addr, info->fix.smem_len / 1024, info->screen_base);
-
- strcpy(info->fix.id, "S1D13505");
- info->par = default_par;
- info->fbops = &epson1355fb_fbops;
- info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
-
- /* we expect the boot loader to have initialized the chip
- with appropriate parameters from which we can determinte
- the flavor of lcd panel attached */
- fetch_hw_state(info, default_par);
-
- /* turn this puppy on ... */
- clearfb16(info);
- backlight_enable(1);
- lcd_enable(default_par, 1);
-
- if (register_framebuffer(info) < 0) {
- rc = -EINVAL;
- goto bail;
- }
- /*
- * Our driver data.
- */
- platform_set_drvdata(dev, info);
-
- printk(KERN_INFO "fb%d: %s frame buffer device\n",
- info->node, info->fix.id);
-
- return 0;
-
- bail:
- epson1355fb_remove(dev);
- return rc;
-}
-
-static struct platform_driver epson1355fb_driver = {
- .probe = epson1355fb_probe,
- .remove = epson1355fb_remove,
- .driver = {
- .name = "epson1355fb",
- },
-};
-
-static struct platform_device *epson1355fb_device;
-
-int __init epson1355fb_init(void)
-{
- int ret = 0;
-
- if (fb_get_options("epson1355fb", NULL))
- return -ENODEV;
-
- ret = platform_driver_register(&epson1355fb_driver);
-
- if (!ret) {
- epson1355fb_device = platform_device_alloc("epson1355fb", 0);
-
- if (epson1355fb_device)
- ret = platform_device_add(epson1355fb_device);
- else
- ret = -ENOMEM;
-
- if (ret) {
- platform_device_put(epson1355fb_device);
- platform_driver_unregister(&epson1355fb_driver);
- }
- }
-
- return ret;
-}
-
-module_init(epson1355fb_init);
-
-#ifdef MODULE
-static void __exit epson1355fb_exit(void)
-{
- platform_device_unregister(epson1355fb_device);
- platform_driver_unregister(&epson1355fb_driver);
-}
-
-/* ------------------------------------------------------------------------- */
-
-module_exit(epson1355fb_exit);
-#endif
-
-MODULE_AUTHOR("Christopher Hoover <ch@hpl.hp.com>");
-MODULE_DESCRIPTION("Framebuffer driver for Epson S1D13505");
-MODULE_LICENSE("GPL");