Linux-libre 4.6.2-gnu

48 files changed, 459 insertions, 766 deletions

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index d889ef204..983280e8d 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -1808,8 +1808,8 @@ config FB_HIT
 	  frame buffer card.
 
 config FB_PMAG_AA
-	bool "PMAG-AA TURBOchannel framebuffer support"
-	depends on (FB = y) && TC
+	tristate "PMAG-AA TURBOchannel framebuffer support"
+	depends on FB && TC
  	select FB_CFB_FILLRECT
  	select FB_CFB_COPYAREA
  	select FB_CFB_IMAGEBLIT
@@ -1985,7 +1985,7 @@ config FB_W100
 
 config FB_SH_MOBILE_LCDC
 	tristate "SuperH Mobile LCDC framebuffer support"
-	depends on FB && (SUPERH || ARCH_SHMOBILE) && HAVE_CLK
+	depends on FB && (SUPERH || ARCH_RENESAS) && HAVE_CLK
 	depends on FB_SH_MOBILE_MERAM || !FB_SH_MOBILE_MERAM
 	select FB_SYS_FILLRECT
 	select FB_SYS_COPYAREA
diff --git a/drivers/video/fbdev/acornfb.c b/drivers/video/fbdev/acornfb.c
index a305caea5..fb75b7e5a 100644
--- a/drivers/video/fbdev/acornfb.c
+++ b/drivers/video/fbdev/acornfb.c
@@ -1040,8 +1040,8 @@ static int acornfb_probe(struct platform_device *dev)
 		 * for the framebuffer if we are not using
 		 * VRAM.
 		 */
-		base = dma_alloc_writecombine(current_par.dev, size, &handle,
-					      GFP_KERNEL);
+		base = dma_alloc_wc(current_par.dev, size, &handle,
+				    GFP_KERNEL);
 		if (base == NULL) {
 			printk(KERN_ERR "acornfb: unable to allocate screen "
 			       "memory\n");
diff --git a/drivers/video/fbdev/amba-clcd-versatile.c b/drivers/video/fbdev/amba-clcd-versatile.c
index 7a8afcd45..a8a22daa3 100644
--- a/drivers/video/fbdev/amba-clcd-versatile.c
+++ b/drivers/video/fbdev/amba-clcd-versatile.c
@@ -154,8 +154,8 @@ int versatile_clcd_setup_dma(struct clcd_fb *fb, unsigned long framesize)
 {
 	dma_addr_t dma;
 
-	fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize,
-						    &dma, GFP_KERNEL);
+	fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, framesize, &dma,
+					  GFP_KERNEL);
 	if (!fb->fb.screen_base) {
 		pr_err("CLCD: unable to map framebuffer\n");
 		return -ENOMEM;
@@ -169,14 +169,12 @@ int versatile_clcd_setup_dma(struct clcd_fb *fb, unsigned long framesize)
 
 int versatile_clcd_mmap_dma(struct clcd_fb *fb, struct vm_area_struct *vma)
 {
-	return dma_mmap_writecombine(&fb->dev->dev, vma,
-				     fb->fb.screen_base,
-				     fb->fb.fix.smem_start,
-				     fb->fb.fix.smem_len);
+	return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
+			   fb->fb.fix.smem_start, fb->fb.fix.smem_len);
 }
 
 void versatile_clcd_remove_dma(struct clcd_fb *fb)
 {
-	dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
-			      fb->fb.screen_base, fb->fb.fix.smem_start);
+	dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,
+		    fb->fb.fix.smem_start);
 }
diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c
index f9ef06d0c..93e66a914 100644
--- a/drivers/video/fbdev/amba-clcd.c
+++ b/drivers/video/fbdev/amba-clcd.c
@@ -775,8 +775,8 @@ static int clcdfb_of_dma_setup(struct clcd_fb *fb)
 
 static int clcdfb_of_dma_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
 {
-	return dma_mmap_writecombine(&fb->dev->dev, vma, fb->fb.screen_base,
-			fb->fb.fix.smem_start, fb->fb.fix.smem_len);
+	return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
+			   fb->fb.fix.smem_start, fb->fb.fix.smem_len);
 }
 
 static void clcdfb_of_dma_remove(struct clcd_fb *fb)
diff --git a/drivers/video/fbdev/atafb.c b/drivers/video/fbdev/atafb.c
index d6ce613e1..fcd2dd670 100644
--- a/drivers/video/fbdev/atafb.c
+++ b/drivers/video/fbdev/atafb.c
@@ -313,9 +313,6 @@ extern unsigned char fontdata_8x16[];
  *	* Draws cursor *
  *	int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
  *
- *	* Rotates the display *
- *	void (*fb_rotate)(struct fb_info *info, int angle);
- *
  *	* wait for blit idle, optional *
  *	int (*fb_sync)(struct fb_info *info);
  *
diff --git a/drivers/video/fbdev/atmel_lcdfb.c b/drivers/video/fbdev/atmel_lcdfb.c
index 19eb42b57..669ecc755 100644
--- a/drivers/video/fbdev/atmel_lcdfb.c
+++ b/drivers/video/fbdev/atmel_lcdfb.c
@@ -26,8 +26,6 @@
 #include <linux/regulator/consumer.h>
 #include <video/videomode.h>
 
-#include <asm/gpio.h>
-
 #include <video/atmel_lcdc.h>
 
 struct atmel_lcdfb_config {
@@ -414,8 +412,8 @@ static inline void atmel_lcdfb_free_video_memory(struct atmel_lcdfb_info *sinfo)
 {
 	struct fb_info *info = sinfo->info;
 
-	dma_free_writecombine(info->device, info->fix.smem_len,
-				info->screen_base, info->fix.smem_start);
+	dma_free_wc(info->device, info->fix.smem_len, info->screen_base,
+		    info->fix.smem_start);
 }
 
 /**
@@ -435,8 +433,9 @@ static int atmel_lcdfb_alloc_video_memory(struct atmel_lcdfb_info *sinfo)
 		    * ((var->bits_per_pixel + 7) / 8));
 	info->fix.smem_len = max(smem_len, sinfo->smem_len);
 
-	info->screen_base = dma_alloc_writecombine(info->device, info->fix.smem_len,
-					(dma_addr_t *)&info->fix.smem_start, GFP_KERNEL);
+	info->screen_base = dma_alloc_wc(info->device, info->fix.smem_len,
+					 (dma_addr_t *)&info->fix.smem_start,
+					 GFP_KERNEL);
 
 	if (!info->screen_base) {
 		return -ENOMEM;
diff --git a/drivers/video/fbdev/aty/aty128fb.c b/drivers/video/fbdev/aty/aty128fb.c
index c42ce2fdf..0a4626886 100644
--- a/drivers/video/fbdev/aty/aty128fb.c
+++ b/drivers/video/fbdev/aty/aty128fb.c
@@ -68,7 +68,6 @@
 #include <asm/machdep.h>
 #include <asm/pmac_feature.h>
 #include <asm/prom.h>
-#include <asm/pci-bridge.h>
 #include "../macmodes.h"
 #endif
 
diff --git a/drivers/video/fbdev/aty/radeon_base.c b/drivers/video/fbdev/aty/radeon_base.c
index ce0b1d05a..218339a4e 100644
--- a/drivers/video/fbdev/aty/radeon_base.c
+++ b/drivers/video/fbdev/aty/radeon_base.c
@@ -76,7 +76,6 @@
 
 #ifdef CONFIG_PPC
 
-#include <asm/pci-bridge.h>
 #include "../macmodes.h"
 
 #ifdef CONFIG_BOOTX_TEXT
diff --git a/drivers/video/fbdev/au1100fb.c b/drivers/video/fbdev/au1100fb.c
index 59560189b..35df2c1a8 100644
--- a/drivers/video/fbdev/au1100fb.c
+++ b/drivers/video/fbdev/au1100fb.c
@@ -334,27 +334,6 @@ int au1100fb_fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi)
 	return 0;
 }
 
-/* fb_rotate
- * Rotate the display of this angle. This doesn't seems to be used by the core,
- * but as our hardware supports it, so why not implementing it...
- */
-void au1100fb_fb_rotate(struct fb_info *fbi, int angle)
-{
-	struct au1100fb_device *fbdev = to_au1100fb_device(fbi);
-
-	print_dbg("fb_rotate %p %d", fbi, angle);
-
-	if (fbdev && (angle > 0) && !(angle % 90)) {
-
-		fbdev->regs->lcd_control &= ~LCD_CONTROL_GO;
-
-		fbdev->regs->lcd_control &= ~(LCD_CONTROL_SM_MASK);
-		fbdev->regs->lcd_control |= ((angle/90) << LCD_CONTROL_SM_BIT);
-
-		fbdev->regs->lcd_control |= LCD_CONTROL_GO;
-	}
-}
-
 /* fb_mmap
  * Map video memory in user space. We don't use the generic fb_mmap method mainly
  * to allow the use of the TLB streaming flag (CCA=6)
@@ -380,7 +359,6 @@ static struct fb_ops au1100fb_ops =
 	.fb_fillrect		= cfb_fillrect,
 	.fb_copyarea		= cfb_copyarea,
 	.fb_imageblit		= cfb_imageblit,
-	.fb_rotate		= au1100fb_fb_rotate,
 	.fb_mmap		= au1100fb_fb_mmap,
 };
 
diff --git a/drivers/video/fbdev/bf537-lq035.c b/drivers/video/fbdev/bf537-lq035.c
index 7db3052b4..ef29fb425 100644
--- a/drivers/video/fbdev/bf537-lq035.c
+++ b/drivers/video/fbdev/bf537-lq035.c
@@ -554,28 +554,6 @@ static int bfin_lq035_fb_check_var(struct fb_var_screeninfo *var,
 	return 0;
 }
 
-/* fb_rotate
- * Rotate the display of this angle. This doesn't seems to be used by the core,
- * but as our hardware supports it, so why not implementing it...
- */
-static void bfin_lq035_fb_rotate(struct fb_info *fbi, int angle)
-{
-	pr_debug("%s: %p %d", __func__, fbi, angle);
-#if (defined(UD) && defined(LBR))
-	switch (angle) {
-
-	case 180:
-		gpio_set_value(LBR, 0);
-		gpio_set_value(UD, 1);
-		break;
-	default:
-		gpio_set_value(LBR, 1);
-		gpio_set_value(UD, 0);
-		break;
-	}
-#endif
-}
-
 static int bfin_lq035_fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 {
 	if (nocursor)
@@ -623,7 +601,6 @@ static struct fb_ops bfin_lq035_fb_ops = {
 	.fb_open		= bfin_lq035_fb_open,
 	.fb_release		= bfin_lq035_fb_release,
 	.fb_check_var		= bfin_lq035_fb_check_var,
-	.fb_rotate		= bfin_lq035_fb_rotate,
 	.fb_fillrect		= cfb_fillrect,
 	.fb_copyarea		= cfb_copyarea,
 	.fb_imageblit		= cfb_imageblit,
diff --git a/drivers/video/fbdev/bt431.h b/drivers/video/fbdev/bt431.h
index 04e0cfbba..3929602f5 100644
--- a/drivers/video/fbdev/bt431.h
+++ b/drivers/video/fbdev/bt431.h
@@ -2,6 +2,7 @@
  *	linux/drivers/video/bt431.h
  *
  *	Copyright 2003  Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
+ *	Copyright 2016  Maciej W. Rozycki <macro@linux-mips.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
@@ -9,6 +10,8 @@
  */
 #include <linux/types.h>
 
+#define BT431_CURSOR_SIZE	64
+
 /*
  * Bt431 cursor generator registers, 32-bit aligned.
  * Two twin Bt431 are used on the DECstation's PMAG-AA.
@@ -60,7 +63,7 @@ static inline u8 bt431_get_value(u16 val)
 #define BT431_CMD_CURS_ENABLE	0x40
 #define BT431_CMD_XHAIR_ENABLE	0x20
 #define BT431_CMD_OR_CURSORS	0x10
-#define BT431_CMD_AND_CURSORS	0x00
+#define BT431_CMD_XOR_CURSORS	0x00
 #define BT431_CMD_1_1_MUX	0x00
 #define BT431_CMD_4_1_MUX	0x04
 #define BT431_CMD_5_1_MUX	0x08
@@ -196,28 +199,30 @@ static inline void bt431_position_cursor(struct bt431_regs *regs, u16 x, u16 y)
 	bt431_write_reg_inc(regs, (y >> 8) & 0x0f); /* BT431_REG_CYHI */
 }
 
-static inline void bt431_set_font(struct bt431_regs *regs, u8 fgc,
-				  u16 width, u16 height)
+static inline void bt431_set_cursor(struct bt431_regs *regs,
+				    const char *data, const char *mask,
+				    u16 rop, u16 width, u16 height)
 {
+	u16 x, y;
 	int i;
-	u16 fgp = fgc ? 0xffff : 0x0000;
-	u16 bgp = fgc ? 0x0000 : 0xffff;
 
+	i = 0;
+	width = DIV_ROUND_UP(width, 8);
 	bt431_select_reg(regs, BT431_REG_CRAM_BASE);
-	for (i = BT431_REG_CRAM_BASE; i <= BT431_REG_CRAM_END; i++) {
-		u16 value;
-
-		if (height << 6 <= i << 3)
-			value = bgp;
-		else if (width <= i % 8 << 3)
-			value = bgp;
-		else if (((width >> 3) & 0xffff) > i % 8)
-			value = fgp;
-		else
-			value = fgp & ~(bgp << (width % 8 << 1));
-
-		bt431_write_cmap_inc(regs, value);
-	}
+	for (y = 0; y < BT431_CURSOR_SIZE; y++)
+		for (x = 0; x < BT431_CURSOR_SIZE / 8; x++) {
+			u16 val = 0;
+
+			if (y < height && x < width) {
+				val = mask[i];
+				if (rop == ROP_XOR)
+					val = (val << 8) | (val ^ data[i]);
+				else
+					val = (val << 8) | (val & data[i]);
+				i++;
+			}
+			bt431_write_cmap_inc(regs, val);
+		}
 }
 
 static inline void bt431_init_cursor(struct bt431_regs *regs)
diff --git a/drivers/video/fbdev/bt455.h b/drivers/video/fbdev/bt455.h
index 80f61b03e..dd1404b40 100644
--- a/drivers/video/fbdev/bt455.h
+++ b/drivers/video/fbdev/bt455.h
@@ -2,6 +2,7 @@
  *	linux/drivers/video/bt455.h
  *
  *	Copyright 2003  Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
+ *	Copyright 2016  Maciej W. Rozycki <macro@linux-mips.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
@@ -29,66 +30,61 @@ static inline void bt455_select_reg(struct bt455_regs *regs, int ir)
 	regs->addr_cmap = ir & 0x0f;
 }
 
+static inline void bt455_reset_reg(struct bt455_regs *regs)
+{
+	mb();
+	regs->addr_clr = 0;
+}
+
 /*
  * Read/write to a Bt455 color map register.
  */
-static inline void bt455_read_cmap_entry(struct bt455_regs *regs, int cr,
-					 u8* red, u8* green, u8* blue)
+static inline void bt455_read_cmap_next(struct bt455_regs *regs, u8 *grey)
 {
-	bt455_select_reg(regs, cr);
 	mb();
-	*red = regs->addr_cmap_data & 0x0f;
+	regs->addr_cmap_data;
 	rmb();
-	*green = regs->addr_cmap_data & 0x0f;
+	*grey = regs->addr_cmap_data & 0xf;
 	rmb();
-	*blue = regs->addr_cmap_data & 0x0f;
+	regs->addr_cmap_data;
 }
 
-static inline void bt455_write_cmap_entry(struct bt455_regs *regs, int cr,
-					  u8 red, u8 green, u8 blue)
+static inline void bt455_write_cmap_next(struct bt455_regs *regs, u8 grey)
 {
-	bt455_select_reg(regs, cr);
 	wmb();
-	regs->addr_cmap_data = red & 0x0f;
+	regs->addr_cmap_data = 0x0;
 	wmb();
-	regs->addr_cmap_data = green & 0x0f;
+	regs->addr_cmap_data = grey & 0xf;
 	wmb();
-	regs->addr_cmap_data = blue & 0x0f;
+	regs->addr_cmap_data = 0x0;
 }
 
-static inline void bt455_write_ovly_entry(struct bt455_regs *regs, int cr,
-					  u8 red, u8 green, u8 blue)
+static inline void bt455_write_ovly_next(struct bt455_regs *regs, u8 grey)
 {
-	bt455_select_reg(regs, cr);
 	wmb();
-	regs->addr_ovly = red & 0x0f;
+	regs->addr_ovly = 0x0;
 	wmb();
-	regs->addr_ovly = green & 0x0f;
+	regs->addr_ovly = grey & 0xf;
 	wmb();
-	regs->addr_ovly = blue & 0x0f;
+	regs->addr_ovly = 0x0;
 }
 
-static inline void bt455_set_cursor(struct bt455_regs *regs)
+static inline void bt455_read_cmap_entry(struct bt455_regs *regs,
+					 int cr, u8 *grey)
 {
-	mb();
-	regs->addr_ovly = 0x0f;
-	wmb();
-	regs->addr_ovly = 0x0f;
-	wmb();
-	regs->addr_ovly = 0x0f;
+	bt455_select_reg(regs, cr);
+	bt455_read_cmap_next(regs, grey);
 }
 
-static inline void bt455_erase_cursor(struct bt455_regs *regs)
+static inline void bt455_write_cmap_entry(struct bt455_regs *regs,
+					  int cr, u8 grey)
 {
-	/* bt455_write_cmap_entry(regs, 8, 0x00, 0x00, 0x00); */
-	/* bt455_write_cmap_entry(regs, 9, 0x00, 0x00, 0x00); */
-	bt455_write_ovly_entry(regs, 8, 0x03, 0x03, 0x03);
-	bt455_write_ovly_entry(regs, 9, 0x07, 0x07, 0x07);
+	bt455_select_reg(regs, cr);
+	bt455_write_cmap_next(regs, grey);
+}
 
-	wmb();
-	regs->addr_ovly = 0x09;
-	wmb();
-	regs->addr_ovly = 0x09;
-	wmb();
-	regs->addr_ovly = 0x09;
+static inline void bt455_write_ovly_entry(struct bt455_regs *regs, u8 grey)
+{
+	bt455_reset_reg(regs);
+	bt455_write_ovly_next(regs, grey);
 }
diff --git a/drivers/video/fbdev/ep93xx-fb.c b/drivers/video/fbdev/ep93xx-fb.c
index 5b1081030..75f0db25d 100644
--- a/drivers/video/fbdev/ep93xx-fb.c
+++ b/drivers/video/fbdev/ep93xx-fb.c
@@ -316,9 +316,8 @@ static int ep93xxfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 	unsigned int offset = vma->vm_pgoff << PAGE_SHIFT;
 
 	if (offset < info->fix.smem_len) {
-		return dma_mmap_writecombine(info->dev, vma, info->screen_base,
-					     info->fix.smem_start,
-					     info->fix.smem_len);
+		return dma_mmap_wc(info->dev, vma, info->screen_base,
+				   info->fix.smem_start, info->fix.smem_len);
 	}
 
 	return -EINVAL;
@@ -428,8 +427,7 @@ static int ep93xxfb_alloc_videomem(struct fb_info *info)
 	/* Maximum 16bpp -> used memory is maximum x*y*2 bytes */
 	fb_size = EP93XXFB_MAX_XRES * EP93XXFB_MAX_YRES * 2;
 
-	virt_addr = dma_alloc_writecombine(info->dev, fb_size,
-					   &phys_addr, GFP_KERNEL);
+	virt_addr = dma_alloc_wc(info->dev, fb_size, &phys_addr, GFP_KERNEL);
 	if (!virt_addr)
 		return -ENOMEM;
 
diff --git a/drivers/video/fbdev/exynos/Kconfig b/drivers/video/fbdev/exynos/Kconfig
index 1f16b4678..d916bef94 100644
--- a/drivers/video/fbdev/exynos/Kconfig
+++ b/drivers/video/fbdev/exynos/Kconfig
@@ -3,7 +3,7 @@
 #
 
 menuconfig EXYNOS_VIDEO
-	bool "Exynos Video driver support"
+	tristate "Exynos Video driver support"
 	depends on ARCH_S5PV210 || ARCH_EXYNOS
 	help
 	  This enables support for EXYNOS Video device.
@@ -15,13 +15,13 @@ if EXYNOS_VIDEO
 #
 
 config EXYNOS_MIPI_DSI
-	bool "EXYNOS MIPI DSI driver support."
+	tristate "EXYNOS MIPI DSI driver support."
 	select GENERIC_PHY
 	help
 	  This enables support for MIPI-DSI device.
 
 config EXYNOS_LCD_S6E8AX0
-	bool "S6E8AX0 MIPI AMOLED LCD Driver"
+	tristate "S6E8AX0 MIPI AMOLED LCD Driver"
 	depends on EXYNOS_MIPI_DSI && BACKLIGHT_CLASS_DEVICE
 	depends on (LCD_CLASS_DEVICE = y)
 	default n
diff --git a/drivers/video/fbdev/exynos/Makefile b/drivers/video/fbdev/exynos/Makefile
index b5b1bd228..02d8dc522 100644
--- a/drivers/video/fbdev/exynos/Makefile
+++ b/drivers/video/fbdev/exynos/Makefile
@@ -2,6 +2,8 @@
 # Makefile for the exynos video drivers.
 #
 
-obj-$(CONFIG_EXYNOS_MIPI_DSI)		+= exynos_mipi_dsi.o exynos_mipi_dsi_common.o \
-				     	exynos_mipi_dsi_lowlevel.o
+obj-$(CONFIG_EXYNOS_MIPI_DSI)		+= exynos-mipi-dsi-mod.o
+
+exynos-mipi-dsi-mod-objs		+= exynos_mipi_dsi.o exynos_mipi_dsi_common.o \
+					   exynos_mipi_dsi_lowlevel.o
 obj-$(CONFIG_EXYNOS_LCD_S6E8AX0)	+= s6e8ax0.o
diff --git a/drivers/video/fbdev/exynos/exynos_mipi_dsi.c b/drivers/video/fbdev/exynos/exynos_mipi_dsi.c
index b527fe464..92e4af3ca 100644
--- a/drivers/video/fbdev/exynos/exynos_mipi_dsi.c
+++ b/drivers/video/fbdev/exynos/exynos_mipi_dsi.c
@@ -263,6 +263,7 @@ int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver *lcd_drv)
 	return 0;
 
 }
+EXPORT_SYMBOL_GPL(exynos_mipi_dsi_register_lcd_driver);
 
 static struct mipi_dsim_ddi *exynos_mipi_dsi_bind_lcd_ddi(
 						struct mipi_dsim_device *dsim,
@@ -402,12 +403,12 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev)
 		goto error;
 	}
 
-	dsim->irq = platform_get_irq(pdev, 0);
-	if (IS_ERR_VALUE(dsim->irq)) {
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to request dsim irq resource\n");
-		ret = -EINVAL;
 		goto error;
 	}
+	dsim->irq = ret;
 
 	init_completion(&dsim_wr_comp);
 	init_completion(&dsim_rd_comp);
diff --git a/drivers/video/fbdev/gbefb.c b/drivers/video/fbdev/gbefb.c
index b63d55f48..1a242b133 100644
--- a/drivers/video/fbdev/gbefb.c
+++ b/drivers/video/fbdev/gbefb.c
@@ -1185,8 +1185,8 @@ static int gbefb_probe(struct platform_device *p_dev)
 	} else {
 		/* try to allocate memory with the classical allocator
 		 * this has high chance to fail on low memory machines */
-		gbe_mem = dma_alloc_writecombine(NULL, gbe_mem_size,
-						 &gbe_dma_addr, GFP_KERNEL);
+		gbe_mem = dma_alloc_wc(NULL, gbe_mem_size, &gbe_dma_addr,
+				       GFP_KERNEL);
 		if (!gbe_mem) {
 			printk(KERN_ERR "gbefb: couldn't allocate framebuffer memory\n");
 			ret = -ENOMEM;
@@ -1238,7 +1238,7 @@ static int gbefb_probe(struct platform_device *p_dev)
 out_gbe_unmap:
 	arch_phys_wc_del(par->wc_cookie);
 	if (gbe_dma_addr)
-		dma_free_writecombine(NULL, gbe_mem_size, gbe_mem, gbe_mem_phys);
+		dma_free_wc(NULL, gbe_mem_size, gbe_mem, gbe_mem_phys);
 out_tiles_free:
 	dma_free_coherent(NULL, GBE_TLB_SIZE * sizeof(uint16_t),
 			  (void *)gbe_tiles.cpu, gbe_tiles.dma);
@@ -1259,7 +1259,7 @@ static int gbefb_remove(struct platform_device* p_dev)
 	gbe_turn_off();
 	arch_phys_wc_del(par->wc_cookie);
 	if (gbe_dma_addr)
-		dma_free_writecombine(NULL, gbe_mem_size, gbe_mem, gbe_mem_phys);
+		dma_free_wc(NULL, gbe_mem_size, gbe_mem, gbe_mem_phys);
 	dma_free_coherent(NULL, GBE_TLB_SIZE * sizeof(uint16_t),
 			  (void *)gbe_tiles.cpu, gbe_tiles.dma);
 	release_mem_region(GBE_BASE, sizeof(struct sgi_gbe));
diff --git a/drivers/video/fbdev/imsttfb.c b/drivers/video/fbdev/imsttfb.c
index 9b167f7ef..4363c64d7 100644
--- a/drivers/video/fbdev/imsttfb.c
+++ b/drivers/video/fbdev/imsttfb.c
@@ -33,7 +33,6 @@
 #if defined(CONFIG_PPC)
 #include <linux/nvram.h>
 #include <asm/prom.h>
-#include <asm/pci-bridge.h>
 #include "macmodes.h"
 #endif
 
diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c
index bb2f1e866..76b6a7784 100644
--- a/drivers/video/fbdev/imxfb.c
+++ b/drivers/video/fbdev/imxfb.c
@@ -937,8 +937,8 @@ static int imxfb_probe(struct platform_device *pdev)
 	}
 
 	fbi->map_size = PAGE_ALIGN(info->fix.smem_len);
-	info->screen_base = dma_alloc_writecombine(&pdev->dev, fbi->map_size,
-						   &fbi->map_dma, GFP_KERNEL);
+	info->screen_base = dma_alloc_wc(&pdev->dev, fbi->map_size,
+					 &fbi->map_dma, GFP_KERNEL);
 
 	if (!info->screen_base) {
 		dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret);
@@ -1005,8 +1005,8 @@ failed_cmap:
 	if (pdata && pdata->exit)
 		pdata->exit(fbi->pdev);
 failed_platform_init:
-	dma_free_writecombine(&pdev->dev, fbi->map_size, info->screen_base,
-			      fbi->map_dma);
+	dma_free_wc(&pdev->dev, fbi->map_size, info->screen_base,
+		    fbi->map_dma);
 failed_map:
 	iounmap(fbi->regs);
 failed_ioremap:
@@ -1041,8 +1041,8 @@ static int imxfb_remove(struct platform_device *pdev)
 	kfree(info->pseudo_palette);
 	framebuffer_release(info);
 
-	dma_free_writecombine(&pdev->dev, fbi->map_size, info->screen_base,
-			      fbi->map_dma);
+	dma_free_wc(&pdev->dev, fbi->map_size, info->screen_base,
+		    fbi->map_dma);
 
 	iounmap(fbi->regs);
 	release_mem_region(res->start, resource_size(res));
diff --git a/drivers/video/fbdev/intelfb/intelfbdrv.c b/drivers/video/fbdev/intelfb/intelfbdrv.c
index bbec737ee..bf207444b 100644
--- a/drivers/video/fbdev/intelfb/intelfbdrv.c
+++ b/drivers/video/fbdev/intelfb/intelfbdrv.c
@@ -302,7 +302,7 @@ static __inline__ int get_opt_int(const char *this_opt, const char *name,
 }
 
 static __inline__ int get_opt_bool(const char *this_opt, const char *name,
-				   int *ret)
+				   bool *ret)
 {
 	if (!ret)
 		return 0;
diff --git a/drivers/video/fbdev/matrox/matroxfb_base.h b/drivers/video/fbdev/matrox/matroxfb_base.h
index 09b02cd1e..7a90ea2c4 100644
--- a/drivers/video/fbdev/matrox/matroxfb_base.h
+++ b/drivers/video/fbdev/matrox/matroxfb_base.h
@@ -47,7 +47,6 @@
 
 #if defined(CONFIG_PPC_PMAC)
 #include <asm/prom.h>
-#include <asm/pci-bridge.h>
 #include "../macmodes.h"
 #endif
 
diff --git a/drivers/video/fbdev/metronomefb.c b/drivers/video/fbdev/metronomefb.c
index ad04a01e2..abb6bbf22 100644
--- a/drivers/video/fbdev/metronomefb.c
+++ b/drivers/video/fbdev/metronomefb.c
@@ -354,7 +354,8 @@ static int metronome_powerup_cmd(struct metronomefb_par *par)
 	}
 
 	/* the rest are 0 */
-	memset((u8 *) (par->metromem_cmd->args + i), 0, (32-i)*2);
+	memset(&par->metromem_cmd->args[i], 0,
+	       (ARRAY_SIZE(par->metromem_cmd->args) - i) * 2);
 
 	par->metromem_cmd->csum = cs;
 
@@ -376,7 +377,8 @@ static int metronome_config_cmd(struct metronomefb_par *par)
 	memcpy(par->metromem_cmd->args, epd_frame_table[par->dt].config,
 		sizeof(epd_frame_table[par->dt].config));
 	/* the rest are 0 */
-	memset((u8 *) (par->metromem_cmd->args + 4), 0, (32-4)*2);
+	memset(&par->metromem_cmd->args[4], 0,
+	       (ARRAY_SIZE(par->metromem_cmd->args) - 4) * 2);
 
 	par->metromem_cmd->csum = 0xCC10;
 	par->metromem_cmd->csum += calc_img_cksum(par->metromem_cmd->args, 4);
diff --git a/drivers/video/fbdev/mx3fb.c b/drivers/video/fbdev/mx3fb.c
index 7947634ee..f91b1db26 100644
--- a/drivers/video/fbdev/mx3fb.c
+++ b/drivers/video/fbdev/mx3fb.c
@@ -1336,9 +1336,8 @@ static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len,
 	int retval = 0;
 	dma_addr_t addr;
 
-	fbi->screen_base = dma_alloc_writecombine(fbi->device,
-						  mem_len,
-						  &addr, GFP_DMA | GFP_KERNEL);
+	fbi->screen_base = dma_alloc_wc(fbi->device, mem_len, &addr,
+					GFP_DMA | GFP_KERNEL);
 
 	if (!fbi->screen_base) {
 		dev_err(fbi->device, "Cannot allocate %u bytes framebuffer memory\n",
@@ -1378,8 +1377,8 @@ err0:
  */
 static int mx3fb_unmap_video_memory(struct fb_info *fbi)
 {
-	dma_free_writecombine(fbi->device, fbi->fix.smem_len,
-			      fbi->screen_base, fbi->fix.smem_start);
+	dma_free_wc(fbi->device, fbi->fix.smem_len, fbi->screen_base,
+		    fbi->fix.smem_start);
 
 	fbi->screen_base = NULL;
 	mutex_lock(&fbi->mm_lock);
diff --git a/drivers/video/fbdev/n411.c b/drivers/video/fbdev/n411.c
index 935830fea..053deacad 100644
--- a/drivers/video/fbdev/n411.c
+++ b/drivers/video/fbdev/n411.c
@@ -165,16 +165,22 @@ static int __init n411_init(void)
 	if (!n411_device)
 		return -ENOMEM;
 
-	platform_device_add_data(n411_device, &n411_board, sizeof(n411_board));
+	ret = platform_device_add_data(n411_device, &n411_board,
+				       sizeof(n411_board));
+	if (ret)
+		goto put_plat_device;
 
 	/* this _add binds hecubafb to n411. hecubafb refcounts n411 */
 	ret = platform_device_add(n411_device);
 
 	if (ret)
-		platform_device_put(n411_device);
+		goto put_plat_device;
 
-	return ret;
+	return 0;
 
+put_plat_device:
+	platform_device_put(n411_device);
+	return ret;
 }
 
 static void __exit n411_exit(void)
diff --git a/drivers/video/fbdev/nuc900fb.c b/drivers/video/fbdev/nuc900fb.c
index 389fa2cbb..6680edae4 100644
--- a/drivers/video/fbdev/nuc900fb.c
+++ b/drivers/video/fbdev/nuc900fb.c
@@ -396,8 +396,8 @@ static int nuc900fb_map_video_memory(struct fb_info *info)
 	dev_dbg(fbi->dev, "nuc900fb_map_video_memory(fbi=%p) map_size %lu\n",
 		fbi, map_size);
 
-	info->screen_base = dma_alloc_writecombine(fbi->dev, map_size,
-							&map_dma, GFP_KERNEL);
+	info->screen_base = dma_alloc_wc(fbi->dev, map_size, &map_dma,
+					 GFP_KERNEL);
 
 	if (!info->screen_base)
 		return -ENOMEM;
@@ -411,8 +411,8 @@ static int nuc900fb_map_video_memory(struct fb_info *info)
 static inline void nuc900fb_unmap_video_memory(struct fb_info *info)
 {
 	struct nuc900fb_info *fbi = info->par;
-	dma_free_writecombine(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
-			      info->screen_base, info->fix.smem_start);
+	dma_free_wc(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
+		    info->screen_base, info->fix.smem_start);
 }
 
 static irqreturn_t nuc900fb_irqhandler(int irq, void *dev_id)
diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c
index 43a0a52fc..fb60a8f0c 100644
--- a/drivers/video/fbdev/offb.c
+++ b/drivers/video/fbdev/offb.c
@@ -28,10 +28,6 @@
 #include <linux/pci.h>
 #include <asm/io.h>
 
-#ifdef CONFIG_PPC64
-#include <asm/pci-bridge.h>
-#endif
-
 #ifdef CONFIG_PPC32
 #include <asm/bootx.h>
 #endif
diff --git a/drivers/video/fbdev/omap/lcd_h3.c b/drivers/video/fbdev/omap/lcd_h3.c
index a0729d020..21512b027 100644
--- a/drivers/video/fbdev/omap/lcd_h3.c
+++ b/drivers/video/fbdev/omap/lcd_h3.c
@@ -22,8 +22,8 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/i2c/tps65010.h>
+#include <linux/gpio.h>
 
-#include <asm/gpio.h>
 #include "omapfb.h"
 
 #define MODULE_NAME	"omapfb-lcd_h3"
diff --git a/drivers/video/fbdev/omap/lcd_osk.c b/drivers/video/fbdev/omap/lcd_osk.c
index c3ddebf93..b56886c70 100644
--- a/drivers/video/fbdev/omap/lcd_osk.c
+++ b/drivers/video/fbdev/omap/lcd_osk.c
@@ -22,8 +22,7 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
-
-#include <asm/gpio.h>
+#include <linux/gpio.h>
 
 #include <mach/hardware.h>
 #include <mach/mux.h>
diff --git a/drivers/video/fbdev/omap/lcd_palmtt.c b/drivers/video/fbdev/omap/lcd_palmtt.c
index 3d0ea04ec..1a936d5c7 100644
--- a/drivers/video/fbdev/omap/lcd_palmtt.c
+++ b/drivers/video/fbdev/omap/lcd_palmtt.c
@@ -28,8 +28,8 @@ GPIO13 - screen blanking
 #include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/io.h>
+#include <linux/gpio.h>
 
-#include <asm/gpio.h>
 #include "omapfb.h"
 
 static int palmtt_panel_init(struct lcd_panel *panel,
diff --git a/drivers/video/fbdev/omap/lcdc.c b/drivers/video/fbdev/omap/lcdc.c
index 6efa2591e..e3d9b9ea5 100644
--- a/drivers/video/fbdev/omap/lcdc.c
+++ b/drivers/video/fbdev/omap/lcdc.c
@@ -612,8 +612,8 @@ static void lcdc_dma_handler(u16 status, void *data)
 
 static int alloc_palette_ram(void)
 {
-	lcdc.palette_virt = dma_alloc_writecombine(lcdc.fbdev->dev,
-		MAX_PALETTE_SIZE, &lcdc.palette_phys, GFP_KERNEL);
+	lcdc.palette_virt = dma_alloc_wc(lcdc.fbdev->dev, MAX_PALETTE_SIZE,
+					 &lcdc.palette_phys, GFP_KERNEL);
 	if (lcdc.palette_virt == NULL) {
 		dev_err(lcdc.fbdev->dev, "failed to alloc palette memory\n");
 		return -ENOMEM;
@@ -625,8 +625,8 @@ static int alloc_palette_ram(void)
 
 static void free_palette_ram(void)
 {
-	dma_free_writecombine(lcdc.fbdev->dev, MAX_PALETTE_SIZE,
-			lcdc.palette_virt, lcdc.palette_phys);
+	dma_free_wc(lcdc.fbdev->dev, MAX_PALETTE_SIZE, lcdc.palette_virt,
+		    lcdc.palette_phys);
 }
 
 static int alloc_fbmem(struct omapfb_mem_region *region)
@@ -642,8 +642,8 @@ static int alloc_fbmem(struct omapfb_mem_region *region)
 	if (region->size > frame_size)
 		frame_size = region->size;
 	lcdc.vram_size = frame_size;
-	lcdc.vram_virt = dma_alloc_writecombine(lcdc.fbdev->dev,
-			lcdc.vram_size, &lcdc.vram_phys, GFP_KERNEL);
+	lcdc.vram_virt = dma_alloc_wc(lcdc.fbdev->dev, lcdc.vram_size,
+				      &lcdc.vram_phys, GFP_KERNEL);
 	if (lcdc.vram_virt == NULL) {
 		dev_err(lcdc.fbdev->dev, "unable to allocate FB DMA memory\n");
 		return -ENOMEM;
@@ -660,8 +660,8 @@ static int alloc_fbmem(struct omapfb_mem_region *region)
 
 static void free_fbmem(void)
 {
-	dma_free_writecombine(lcdc.fbdev->dev, lcdc.vram_size,
-			      lcdc.vram_virt, lcdc.vram_phys);
+	dma_free_wc(lcdc.fbdev->dev, lcdc.vram_size, lcdc.vram_virt,
+		    lcdc.vram_phys);
 }
 
 static int setup_fbmem(struct omapfb_mem_desc *req_md)
diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
index 393ae1bc0..6429f3316 100644
--- a/drivers/video/fbdev/omap/omapfb_main.c
+++ b/drivers/video/fbdev/omap/omapfb_main.c
@@ -594,27 +594,6 @@ static int set_fb_var(struct fb_info *fbi,
 }
 
 
-/* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
-static void omapfb_rotate(struct fb_info *fbi, int rotate)
-{
-	struct omapfb_plane_struct *plane = fbi->par;
-	struct omapfb_device *fbdev = plane->fbdev;
-
-	omapfb_rqueue_lock(fbdev);
-	if (rotate != fbi->var.rotate) {
-		struct fb_var_screeninfo *new_var = &fbdev->new_var;
-
-		memcpy(new_var, &fbi->var, sizeof(*new_var));
-		new_var->rotate = rotate;
-		if (set_fb_var(fbi, new_var) == 0 &&
-		    memcmp(new_var, &fbi->var, sizeof(*new_var))) {
-			memcpy(&fbi->var, new_var, sizeof(*new_var));
-			ctrl_change_mode(fbi);
-		}
-	}
-	omapfb_rqueue_unlock(fbdev);
-}
-
 /*
  * Set new x,y offsets in the virtual display for the visible area and switch
  * to the new mode.
@@ -1256,7 +1235,6 @@ static struct fb_ops omapfb_ops = {
 	.fb_ioctl	= omapfb_ioctl,
 	.fb_check_var	= omapfb_check_var,
 	.fb_set_par	= omapfb_set_par,
-	.fb_rotate	= omapfb_rotate,
 	.fb_pan_display = omapfb_pan_display,
 };
 
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
index abfd1f6e3..1954ec913 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
@@ -200,20 +200,16 @@ static struct omap_dss_driver sharp_ls_ops = {
 static int sharp_ls_get_gpio(struct device *dev, int gpio, unsigned long flags,
 		  char *desc, struct gpio_desc **gpiod)
 {
-	struct gpio_desc *gd;
 	int r;
 
-	*gpiod = NULL;
-
 	r = devm_gpio_request_one(dev, gpio, flags, desc);
-	if (r)
+	if (r) {
+		*gpiod = NULL;
 		return r == -ENOENT ? 0 : r;
+	}
 
-	gd = gpio_to_desc(gpio);
-	if (IS_ERR(gd))
-		return PTR_ERR(gd) == -ENOENT ? 0 : PTR_ERR(gd);
+	*gpiod = gpio_to_desc(gpio);
 
-	*gpiod = gd;
 	return 0;
 }
 
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dispc.h b/drivers/video/fbdev/omap2/omapfb/dss/dispc.h
index 483744223..e014d0419 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dispc.h
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dispc.h
@@ -915,4 +915,5 @@ static inline u16 DISPC_MFLAG_THRESHOLD_OFFSET(enum omap_plane plane)
 		return 0;
 	}
 }
+
 #endif
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss.h b/drivers/video/fbdev/omap2/omapfb/dss/dss.h
index b9066afee..0184a8461 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dss.h
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dss.h
@@ -412,6 +412,44 @@ void dispc_wb_set_channel_in(enum dss_writeback_channel channel);
 int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
 		bool mem_to_mem, const struct omap_video_timings *timings);
 
+u32 dispc_read_irqstatus(void);
+void dispc_clear_irqstatus(u32 mask);
+u32 dispc_read_irqenable(void);
+void dispc_write_irqenable(u32 mask);
+
+int dispc_request_irq(irq_handler_t handler, void *dev_id);
+void dispc_free_irq(void *dev_id);
+
+int dispc_runtime_get(void);
+void dispc_runtime_put(void);
+
+void dispc_mgr_enable(enum omap_channel channel, bool enable);
+bool dispc_mgr_is_enabled(enum omap_channel channel);
+u32 dispc_mgr_get_vsync_irq(enum omap_channel channel);
+u32 dispc_mgr_get_framedone_irq(enum omap_channel channel);
+u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel);
+bool dispc_mgr_go_busy(enum omap_channel channel);
+void dispc_mgr_go(enum omap_channel channel);
+void dispc_mgr_set_lcd_config(enum omap_channel channel,
+		const struct dss_lcd_mgr_config *config);
+void dispc_mgr_set_timings(enum omap_channel channel,
+		const struct omap_video_timings *timings);
+void dispc_mgr_setup(enum omap_channel channel,
+		const struct omap_overlay_manager_info *info);
+
+int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
+		const struct omap_overlay_info *oi,
+		const struct omap_video_timings *timings,
+		int *x_predecim, int *y_predecim);
+
+int dispc_ovl_enable(enum omap_plane plane, bool enable);
+bool dispc_ovl_enabled(enum omap_plane plane);
+void dispc_ovl_set_channel_out(enum omap_plane plane,
+		enum omap_channel channel);
+int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
+		bool replication, const struct omap_video_timings *mgr_timings,
+		bool mem_to_mem);
+
 /* VENC */
 int venc_init_platform_driver(void) __init;
 void venc_uninit_platform_driver(void);
@@ -465,4 +503,44 @@ int dss_pll_write_config_type_b(struct dss_pll *pll,
 		const struct dss_pll_clock_info *cinfo);
 int dss_pll_wait_reset_done(struct dss_pll *pll);
 
+/* compat */
+
+struct dss_mgr_ops {
+	int (*connect)(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dst);
+	void (*disconnect)(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dst);
+
+	void (*start_update)(struct omap_overlay_manager *mgr);
+	int (*enable)(struct omap_overlay_manager *mgr);
+	void (*disable)(struct omap_overlay_manager *mgr);
+	void (*set_timings)(struct omap_overlay_manager *mgr,
+			const struct omap_video_timings *timings);
+	void (*set_lcd_config)(struct omap_overlay_manager *mgr,
+			const struct dss_lcd_mgr_config *config);
+	int (*register_framedone_handler)(struct omap_overlay_manager *mgr,
+			void (*handler)(void *), void *data);
+	void (*unregister_framedone_handler)(struct omap_overlay_manager *mgr,
+			void (*handler)(void *), void *data);
+};
+
+int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops);
+void dss_uninstall_mgr_ops(void);
+
+int dss_mgr_connect(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dst);
+void dss_mgr_disconnect(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dst);
+void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
+		const struct omap_video_timings *timings);
+void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
+		const struct dss_lcd_mgr_config *config);
+int dss_mgr_enable(struct omap_overlay_manager *mgr);
+void dss_mgr_disable(struct omap_overlay_manager *mgr);
+void dss_mgr_start_update(struct omap_overlay_manager *mgr);
+int dss_mgr_register_framedone_handler(struct omap_overlay_manager *mgr,
+		void (*handler)(void *), void *data);
+void dss_mgr_unregister_framedone_handler(struct omap_overlay_manager *mgr,
+		void (*handler)(void *), void *data);
+
 #endif
diff --git a/drivers/video/fbdev/pmag-aa-fb.c b/drivers/video/fbdev/pmag-aa-fb.c
index 838424817..ffe2dd482 100644
--- a/drivers/video/fbdev/pmag-aa-fb.c
+++ b/drivers/video/fbdev/pmag-aa-fb.c
@@ -8,6 +8,7 @@
  *	and Harald Koerfgen <hkoerfg@web.de>, which itself is derived from
  *	"HP300 Topcat framebuffer support (derived from macfb of all things)
  *	Phil Blundell <philb@gnu.org> 1998"
+ *	Copyright (c) 2016  Maciej W. Rozycki
  *
  *	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
@@ -21,37 +22,29 @@
  *
  *	2003-09-21  Thiemo Seufer  <seufer@csv.ica.uni-stuttgart.de>
  *		Hardware cursor support.
+ *
+ *	2016-02-21  Maciej W. Rozycki  <macro@linux-mips.org>
+ *		Version 0.03: Rewritten for the new FB and TC APIs.
  */
-#include <linux/module.h>
-#include <linux/kernel.h>
+
+#include <linux/compiler.h>
 #include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/delay.h>
-#include <linux/init.h>
 #include <linux/fb.h>
-#include <linux/console.h>
-
-#include <asm/bootinfo.h>
-#include <asm/dec/machtype.h>
-#include <asm/dec/tc.h>
-
-#include <video/fbcon.h>
-#include <video/fbcon-cfb8.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/tc.h>
+#include <linux/timer.h>
 
 #include "bt455.h"
 #include "bt431.h"
 
 /* Version information */
-#define DRIVER_VERSION "0.02"
+#define DRIVER_VERSION "0.03"
 #define DRIVER_AUTHOR "Karsten Merker <merker@linuxtag.org>"
 #define DRIVER_DESCRIPTION "PMAG-AA Framebuffer Driver"
 
-/* Prototypes */
-static int aafb_set_var(struct fb_var_screeninfo *var, int con,
-			struct fb_info *info);
-
 /*
  * Bt455 RAM DAC register base offset (rel. to TC slot base address).
  */
@@ -68,443 +61,246 @@ static int aafb_set_var(struct fb_var_screeninfo *var, int con,
  */
 #define PMAG_AA_ONBOARD_FBMEM_OFFSET	0x200000
 
-struct aafb_cursor {
-	struct timer_list timer;
-	int enable;
-	int on;
-	int vbl_cnt;
-	int blink_rate;
-	u16 x, y, width, height;
+struct aafb_par {
+	void __iomem *mmio;
+	struct bt455_regs __iomem *bt455;
+	struct bt431_regs __iomem *bt431;
 };
 
-#define CURSOR_TIMER_FREQ	(HZ / 50)
-#define CURSOR_BLINK_RATE	(20)
-#define CURSOR_DRAW_DELAY	(2)
-
-struct aafb_info {
-	struct fb_info info;
-	struct display disp;
-	struct aafb_cursor cursor;
-	struct bt455_regs *bt455;
-	struct bt431_regs *bt431;
-	unsigned long fb_start;
-	unsigned long fb_size;
-	unsigned long fb_line_length;
+static struct fb_var_screeninfo aafb_defined = {
+	.xres		= 1280,
+	.yres		= 1024,
+	.xres_virtual	= 2048,
+	.yres_virtual	= 1024,
+	.bits_per_pixel	= 8,
+	.grayscale	= 1,
+	.red.length	= 0,
+	.green.length	= 1,
+	.blue.length	= 0,
+	.activate	= FB_ACTIVATE_NOW,
+	.accel_flags	= FB_ACCEL_NONE,
+	.pixclock	= 7645,
+	.left_margin	= 224,
+	.right_margin	= 32,
+	.upper_margin	= 33,
+	.lower_margin	= 3,
+	.hsync_len	= 160,
+	.vsync_len	= 3,
+	.sync		= FB_SYNC_ON_GREEN,
+	.vmode		= FB_VMODE_NONINTERLACED,
 };
 
-/*
- * Max 3 TURBOchannel slots -> max 3 PMAG-AA.
- */
-static struct aafb_info my_fb_info[3];
-
-static struct aafb_par {
-} current_par;
-
-static int currcon = -1;
-
-static void aafb_set_cursor(struct aafb_info *info, int on)
-{
-	struct aafb_cursor *c = &info->cursor;
-
-	if (on) {
-		bt431_position_cursor(info->bt431, c->x, c->y);
-		bt431_enable_cursor(info->bt431);
-	} else
-		bt431_erase_cursor(info->bt431);
-}
-
-static void aafbcon_cursor(struct display *disp, int mode, int x, int y)
-{
-	struct aafb_info *info = (struct aafb_info *)disp->fb_info;
-	struct aafb_cursor *c = &info->cursor;
-
-	x *= fontwidth(disp);
-	y *= fontheight(disp);
-
-	if (c->x == x && c->y == y && (mode == CM_ERASE) == !c->enable)
-		return;
-
-	c->enable = 0;
-	if (c->on)
-		aafb_set_cursor(info, 0);
-	c->x = x - disp->var.xoffset;
-	c->y = y - disp->var.yoffset;
-
-	switch (mode) {
-		case CM_ERASE:
-			c->on = 0;
-			break;
-		case CM_DRAW:
-		case CM_MOVE:
-			if (c->on)
-				aafb_set_cursor(info, c->on);
-			else
-				c->vbl_cnt = CURSOR_DRAW_DELAY;
-			c->enable = 1;
-			break;
-	}
-}
+static struct fb_fix_screeninfo aafb_fix = {
+	.id		= "PMAG-AA",
+	.smem_len	= (2048 * 1024),
+	.type		= FB_TYPE_PACKED_PIXELS,
+	.visual		= FB_VISUAL_MONO10,
+	.ypanstep	= 1,
+	.ywrapstep	= 1,
+	.line_length	= 2048,
+	.mmio_len	= PMAG_AA_ONBOARD_FBMEM_OFFSET - PMAG_AA_BT455_OFFSET,
+};
 
-static int aafbcon_set_font(struct display *disp, int width, int height)
+static int aafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 {
-	struct aafb_info *info = (struct aafb_info *)disp->fb_info;
-	struct aafb_cursor *c = &info->cursor;
-	u8 fgc = ~attr_bgcol_ec(disp, disp->conp, &info->info);
+	struct aafb_par *par = info->par;
 
-	if (width > 64 || height > 64 || width < 0 || height < 0)
+	if (cursor->image.height > BT431_CURSOR_SIZE ||
+	    cursor->image.width > BT431_CURSOR_SIZE) {
+		bt431_erase_cursor(par->bt431);
 		return -EINVAL;
-
-	c->height = height;
-	c->width = width;
-
-	bt431_set_font(info->bt431, fgc, width, height);
-
-	return 1;
-}
-
-static void aafb_cursor_timer_handler(unsigned long data)
-{
-	struct aafb_info *info = (struct aafb_info *)data;
-	struct aafb_cursor *c = &info->cursor;
-
-	if (!c->enable)
-		goto out;
-
-	if (c->vbl_cnt && --c->vbl_cnt == 0) {
-		c->on ^= 1;
-		aafb_set_cursor(info, c->on);
-		c->vbl_cnt = c->blink_rate;
 	}
 
-out:
-	c->timer.expires = jiffies + CURSOR_TIMER_FREQ;
-	add_timer(&c->timer);
-}
-
-static void __init aafb_cursor_init(struct aafb_info *info)
-{
-	struct aafb_cursor *c = &info->cursor;
-
-	c->enable = 1;
-	c->on = 1;
-	c->x = c->y = 0;
-	c->width = c->height = 0;
-	c->vbl_cnt = CURSOR_DRAW_DELAY;
-	c->blink_rate = CURSOR_BLINK_RATE;
-
-	init_timer(&c->timer);
-	c->timer.data = (unsigned long)info;
-	c->timer.function = aafb_cursor_timer_handler;
-	mod_timer(&c->timer, jiffies + CURSOR_TIMER_FREQ);
-}
-
-static void __exit aafb_cursor_exit(struct aafb_info *info)
-{
-	struct aafb_cursor *c = &info->cursor;
-
-	del_timer_sync(&c->timer);
-}
-
-static struct display_switch aafb_switch8 = {
-	.setup = fbcon_cfb8_setup,
-	.bmove = fbcon_cfb8_bmove,
-	.clear = fbcon_cfb8_clear,
-	.putc = fbcon_cfb8_putc,
-	.putcs = fbcon_cfb8_putcs,
-	.revc = fbcon_cfb8_revc,
-	.cursor = aafbcon_cursor,
-	.set_font = aafbcon_set_font,
-	.clear_margins = fbcon_cfb8_clear_margins,
-	.fontwidthmask = FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
-};
-
-static void aafb_get_par(struct aafb_par *par)
-{
-	*par = current_par;
-}
-
-static int aafb_get_fix(struct fb_fix_screeninfo *fix, int con,
-			struct fb_info *info)
-{
-	struct aafb_info *ip = (struct aafb_info *)info;
-
-	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
-	strcpy(fix->id, "PMAG-AA");
-	fix->smem_start = ip->fb_start;
-	fix->smem_len = ip->fb_size;
-	fix->type = FB_TYPE_PACKED_PIXELS;
-	fix->ypanstep = 1;
-	fix->ywrapstep = 1;
-	fix->visual = FB_VISUAL_MONO10;
-	fix->line_length = 1280;
-	fix->accel = FB_ACCEL_NONE;
+	if (!cursor->enable)
+		bt431_erase_cursor(par->bt431);
 
-	return 0;
-}
+	if (cursor->set & FB_CUR_SETPOS)
+		bt431_position_cursor(par->bt431,
+				      cursor->image.dx, cursor->image.dy);
+	if (cursor->set & FB_CUR_SETCMAP) {
+		u8 fg = cursor->image.fg_color ? 0xf : 0x0;
+		u8 bg = cursor->image.bg_color ? 0xf : 0x0;
 
-static void aafb_set_disp(struct display *disp, int con,
-			  struct aafb_info *info)
-{
-	struct fb_fix_screeninfo fix;
-
-	disp->fb_info = &info->info;
-	aafb_set_var(&disp->var, con, &info->info);
-	if (disp->conp && disp->conp->vc_sw && disp->conp->vc_sw->con_cursor)
-		disp->conp->vc_sw->con_cursor(disp->conp, CM_ERASE);
-	disp->dispsw = &aafb_switch8;
-	disp->dispsw_data = 0;
-
-	aafb_get_fix(&fix, con, &info->info);
-	disp->screen_base = (u8 *) fix.smem_start;
-	disp->visual = fix.visual;
-	disp->type = fix.type;
-	disp->type_aux = fix.type_aux;
-	disp->ypanstep = fix.ypanstep;
-	disp->ywrapstep = fix.ywrapstep;
-	disp->line_length = fix.line_length;
-	disp->next_line = 2048;
-	disp->can_soft_blank = 1;
-	disp->inverse = 0;
-	disp->scrollmode = SCROLL_YREDRAW;
-
-	aafbcon_set_font(disp, fontwidth(disp), fontheight(disp));
-}
+		bt455_write_cmap_entry(par->bt455, 8, bg);
+		bt455_write_cmap_next(par->bt455, bg);
+		bt455_write_ovly_next(par->bt455, fg);
+	}
+	if (cursor->set & (FB_CUR_SETSIZE | FB_CUR_SETSHAPE | FB_CUR_SETIMAGE))
+		bt431_set_cursor(par->bt431,
+				 cursor->image.data, cursor->mask, cursor->rop,
+				 cursor->image.width, cursor->image.height);
 
-static int aafb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
-			 struct fb_info *info)
-{
-	static u16 color[2] = {0x0000, 0x000f};
-	static struct fb_cmap aafb_cmap = {0, 2, color, color, color, NULL};
+	if (cursor->enable)
+		bt431_enable_cursor(par->bt431);
 
-	fb_copy_cmap(&aafb_cmap, cmap, kspc ? 0 : 2);
 	return 0;
 }
 
-static int aafb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
-			 struct fb_info *info)
-{
-	u16 color[2] = {0x0000, 0x000f};
-
-	if (cmap->start == 0
-	    && cmap->len == 2
-	    && memcmp(cmap->red, color, sizeof(color)) == 0
-	    && memcmp(cmap->green, color, sizeof(color)) == 0
-	    && memcmp(cmap->blue, color, sizeof(color)) == 0
-	    && cmap->transp == NULL)
-		return 0;
-	else
-		return -EINVAL;
-}
-
-static int aafb_ioctl(struct fb_info *info, u32 cmd, unsigned long arg)
-{
-	/* TODO: Not yet implemented */
-	return -ENOIOCTLCMD;
-}
+/* 0 unblanks, any other blanks. */
 
-static int aafb_switch(int con, struct fb_info *info)
+static int aafb_blank(int blank, struct fb_info *info)
 {
-	struct aafb_info *ip = (struct aafb_info *)info;
-	struct display *old = (currcon < 0) ? &ip->disp : (fb_display + currcon);
-	struct display *new = (con < 0) ? &ip->disp : (fb_display + con);
-
-	if (old->conp && old->conp->vc_sw && old->conp->vc_sw->con_cursor)
-		old->conp->vc_sw->con_cursor(old->conp, CM_ERASE);
-
-	/* Set the current console. */
-	currcon = con;
-	aafb_set_disp(new, con, ip);
+	struct aafb_par *par = info->par;
+	u8 val = blank ? 0x00 : 0x0f;
 
+	bt455_write_cmap_entry(par->bt455, 1, val);
 	return 0;
 }
 
-static void aafb_encode_var(struct fb_var_screeninfo *var,
-			    struct aafb_par *par)
-{
-	var->xres = 1280;
-	var->yres = 1024;
-	var->xres_virtual = 2048;
-	var->yres_virtual = 1024;
-	var->xoffset = 0;
-	var->yoffset = 0;
-	var->bits_per_pixel = 8;
-	var->grayscale = 1;
-	var->red.offset = 0;
-	var->red.length = 0;
-	var->red.msb_right = 0;
-	var->green.offset = 0;
-	var->green.length = 1;
-	var->green.msb_right = 0;
-	var->blue.offset = 0;
-	var->blue.length = 0;
-	var->blue.msb_right = 0;
-	var->transp.offset = 0;
-	var->transp.length = 0;
-	var->transp.msb_right = 0;
-	var->nonstd = 0;
-	var->activate &= ~FB_ACTIVATE_MASK & FB_ACTIVATE_NOW;
-	var->accel_flags = 0;
-	var->sync = FB_SYNC_ON_GREEN;
-	var->vmode &= ~FB_VMODE_MASK & FB_VMODE_NONINTERLACED;
-}
+static struct fb_ops aafb_ops = {
+	.owner		= THIS_MODULE,
+	.fb_blank	= aafb_blank,
+	.fb_fillrect	= cfb_fillrect,
+	.fb_copyarea	= cfb_copyarea,
+	.fb_imageblit	= cfb_imageblit,
+	.fb_cursor	= aafb_cursor,
+};
 
-static int aafb_get_var(struct fb_var_screeninfo *var, int con,
-			struct fb_info *info)
+static int pmagaafb_probe(struct device *dev)
 {
-	if (con < 0) {
-		struct aafb_par par;
-
-		memset(var, 0, sizeof(struct fb_var_screeninfo));
-		aafb_get_par(&par);
-		aafb_encode_var(var, &par);
-	} else
-		*var = info->var;
+	struct tc_dev *tdev = to_tc_dev(dev);
+	resource_size_t start, len;
+	struct fb_info *info;
+	struct aafb_par *par;
+	int err;
+
+	info = framebuffer_alloc(sizeof(struct aafb_par), dev);
+	if (!info) {
+		printk(KERN_ERR "%s: Cannot allocate memory\n", dev_name(dev));
+		return -ENOMEM;
+	}
 
-	return 0;
-}
+	par = info->par;
+	dev_set_drvdata(dev, info);
+
+	info->fbops = &aafb_ops;
+	info->fix = aafb_fix;
+	info->var = aafb_defined;
+	info->flags = FBINFO_DEFAULT;
+
+	/* Request the I/O MEM resource. */
+	start = tdev->resource.start;
+	len = tdev->resource.end - start + 1;
+	if (!request_mem_region(start, len, dev_name(dev))) {
+		printk(KERN_ERR "%s: Cannot reserve FB region\n",
+		       dev_name(dev));
+		err = -EBUSY;
+		goto err_alloc;
+	}
 
-static int aafb_set_var(struct fb_var_screeninfo *var, int con,
-			struct fb_info *info)
-{
-	struct aafb_par par;
+	/* MMIO mapping setup. */
+	info->fix.mmio_start = start + PMAG_AA_BT455_OFFSET;
+	par->mmio = ioremap_nocache(info->fix.mmio_start, info->fix.mmio_len);
+	if (!par->mmio) {
+		printk(KERN_ERR "%s: Cannot map MMIO\n", dev_name(dev));
+		err = -ENOMEM;
+		goto err_resource;
+	}
+	par->bt455 = par->mmio - PMAG_AA_BT455_OFFSET + PMAG_AA_BT455_OFFSET;
+	par->bt431 = par->mmio - PMAG_AA_BT455_OFFSET + PMAG_AA_BT431_OFFSET;
+
+	/* Frame buffer mapping setup. */
+	info->fix.smem_start = start + PMAG_AA_ONBOARD_FBMEM_OFFSET;
+	info->screen_base = ioremap_nocache(info->fix.smem_start,
+					    info->fix.smem_len);
+	if (!info->screen_base) {
+		printk(KERN_ERR "%s: Cannot map FB\n", dev_name(dev));
+		err = -ENOMEM;
+		goto err_mmio_map;
+	}
+	info->screen_size = info->fix.smem_len;
 
-	aafb_get_par(&par);
-	aafb_encode_var(var, &par);
-	info->var = *var;
+	/* Init colormap. */
+	bt455_write_cmap_entry(par->bt455, 0, 0x0);
+	bt455_write_cmap_next(par->bt455, 0xf);
 
-	return 0;
-}
+	/* Init hardware cursor. */
+	bt431_erase_cursor(par->bt431);
+	bt431_init_cursor(par->bt431);
+
+	err = register_framebuffer(info);
+	if (err < 0) {
+		printk(KERN_ERR "%s: Cannot register framebuffer\n",
+		       dev_name(dev));
+		goto err_smem_map;
+	}
 
-static int aafb_update_var(int con, struct fb_info *info)
-{
-	struct aafb_info *ip = (struct aafb_info *)info;
-	struct display *disp = (con < 0) ? &ip->disp : (fb_display + con);
+	get_device(dev);
 
-	if (con == currcon)
-		aafbcon_cursor(disp, CM_ERASE, ip->cursor.x, ip->cursor.y);
+	pr_info("fb%d: %s frame buffer device at %s\n",
+		info->node, info->fix.id, dev_name(dev));
 
 	return 0;
-}
 
-/* 0 unblanks, any other blanks. */
 
-static void aafb_blank(int blank, struct fb_info *info)
-{
-	struct aafb_info *ip = (struct aafb_info *)info;
-	u8 val = blank ? 0x00 : 0x0f;
+err_smem_map:
+	iounmap(info->screen_base);
 
-	bt455_write_cmap_entry(ip->bt455, 1, val, val, val);
-	aafbcon_cursor(&ip->disp, CM_ERASE, ip->cursor.x, ip->cursor.y);
-}
+err_mmio_map:
+	iounmap(par->mmio);
 
-static struct fb_ops aafb_ops = {
-	.owner = THIS_MODULE,
-	.fb_get_fix = aafb_get_fix,
-	.fb_get_var = aafb_get_var,
-	.fb_set_var = aafb_set_var,
-	.fb_get_cmap = aafb_get_cmap,
-	.fb_set_cmap = aafb_set_cmap,
-	.fb_ioctl = aafb_ioctl
-};
+err_resource:
+	release_mem_region(start, len);
 
-static int __init init_one(int slot)
-{
-	unsigned long base_addr = CKSEG1ADDR(get_tc_base_addr(slot));
-	struct aafb_info *ip = &my_fb_info[slot];
-
-	memset(ip, 0, sizeof(struct aafb_info));
-
-	/*
-	 * Framebuffer display memory base address and friends.
-	 */
-	ip->bt455 = (struct bt455_regs *) (base_addr + PMAG_AA_BT455_OFFSET);
-	ip->bt431 = (struct bt431_regs *) (base_addr + PMAG_AA_BT431_OFFSET);
-	ip->fb_start = base_addr + PMAG_AA_ONBOARD_FBMEM_OFFSET;
-	ip->fb_size = 2048 * 1024; /* fb_fix_screeninfo.smem_length
-				      seems to be physical */
-	ip->fb_line_length = 2048;
-
-	/*
-	 * Let there be consoles..
-	 */
-	strcpy(ip->info.modename, "PMAG-AA");
-	ip->info.node = -1;
-	ip->info.flags = FBINFO_FLAG_DEFAULT;
-	ip->info.fbops = &aafb_ops;
-	ip->info.disp = &ip->disp;
-	ip->info.changevar = NULL;
-	ip->info.switch_con = &aafb_switch;
-	ip->info.updatevar = &aafb_update_var;
-	ip->info.blank = &aafb_blank;
-
-	aafb_set_disp(&ip->disp, currcon, ip);
-
-	/*
-	 * Configure the RAM DACs.
-	 */
-	bt455_erase_cursor(ip->bt455);
-
-	/* Init colormap. */
-	bt455_write_cmap_entry(ip->bt455, 0, 0x00, 0x00, 0x00);
-	bt455_write_cmap_entry(ip->bt455, 1, 0x0f, 0x0f, 0x0f);
-
-	/* Init hardware cursor. */
-	bt431_init_cursor(ip->bt431);
-	aafb_cursor_init(ip);
-
-	/* Clear the screen. */
-	memset ((void *)ip->fb_start, 0, ip->fb_size);
-
-	if (register_framebuffer(&ip->info) < 0)
-		return -EINVAL;
-
-	printk(KERN_INFO "fb%d: %s frame buffer in TC slot %d\n",
-	       GET_FB_IDX(ip->info.node), ip->info.modename, slot);
-
-	return 0;
+err_alloc:
+	framebuffer_release(info);
+	return err;
 }
 
-static int __exit exit_one(int slot)
+static int __exit pmagaafb_remove(struct device *dev)
 {
-	struct aafb_info *ip = &my_fb_info[slot];
-
-	if (unregister_framebuffer(&ip->info) < 0)
-		return -EINVAL;
-
+	struct tc_dev *tdev = to_tc_dev(dev);
+	struct fb_info *info = dev_get_drvdata(dev);
+	struct aafb_par *par = info->par;
+	resource_size_t start, len;
+
+	put_device(dev);
+	unregister_framebuffer(info);
+	iounmap(info->screen_base);
+	iounmap(par->mmio);
+	start = tdev->resource.start;
+	len = tdev->resource.end - start + 1;
+	release_mem_region(start, len);
+	framebuffer_release(info);
 	return 0;
 }
 
 /*
  * Initialise the framebuffer.
  */
-int __init pmagaafb_init(void)
-{
-	int sid;
-	int found = 0;
-
-	while ((sid = search_tc_card("PMAG-AA")) >= 0) {
-		found = 1;
-		claim_tc_card(sid);
-		init_one(sid);
-	}
+static const struct tc_device_id pmagaafb_tc_table[] = {
+	{ "DEC     ", "PMAG-AA " },
+	{ }
+};
+MODULE_DEVICE_TABLE(tc, pmagaafb_tc_table);
+
+static struct tc_driver pmagaafb_driver = {
+	.id_table	= pmagaafb_tc_table,
+	.driver		= {
+		.name	= "pmagaafb",
+		.bus	= &tc_bus_type,
+		.probe	= pmagaafb_probe,
+		.remove	= __exit_p(pmagaafb_remove),
+	},
+};
 
-	return found ? 0 : -ENXIO;
+static int __init pmagaafb_init(void)
+{
+#ifndef MODULE
+	if (fb_get_options("pmagaafb", NULL))
+		return -ENXIO;
+#endif
+	return tc_register_driver(&pmagaafb_driver);
 }
 
 static void __exit pmagaafb_exit(void)
 {
-	int sid;
-
-	while ((sid = search_tc_card("PMAG-AA")) >= 0) {
-		exit_one(sid);
-		release_tc_card(sid);
-	}
+	tc_unregister_driver(&pmagaafb_driver);
 }
 
+module_init(pmagaafb_init);
+module_exit(pmagaafb_exit);
+
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
 MODULE_LICENSE("GPL");
-#ifdef MODULE
-module_init(pmagaafb_init);
-module_exit(pmagaafb_exit);
-#endif
diff --git a/drivers/video/fbdev/pmag-ba-fb.c b/drivers/video/fbdev/pmag-ba-fb.c
index 914a52ba8..5872bc4af 100644
--- a/drivers/video/fbdev/pmag-ba-fb.c
+++ b/drivers/video/fbdev/pmag-ba-fb.c
@@ -60,7 +60,7 @@ static struct fb_var_screeninfo pmagbafb_defined = {
 	.left_margin	= 116,
 	.right_margin	= 12,
 	.upper_margin	= 34,
-	.lower_margin	= 12,
+	.lower_margin	= 0,
 	.hsync_len	= 128,
 	.vsync_len	= 3,
 	.sync		= FB_SYNC_ON_GREEN,
diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index 0e24eb9c2..3b1ca4411 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -686,8 +686,8 @@ static ssize_t pvr2fb_write(struct fb_info *info, const char *buf,
 	if (!pages)
 		return -ENOMEM;
 
-	ret = get_user_pages_unlocked(current, current->mm, (unsigned long)buf,
-				      nr_pages, WRITE, 0, pages);
+	ret = get_user_pages_unlocked((unsigned long)buf, nr_pages, WRITE,
+			0, pages);
 
 	if (ret < nr_pages) {
 		nr_pages = ret;
@@ -735,7 +735,7 @@ out:
 
 out_unmap:
 	for (i = 0; i < nr_pages; i++)
-		page_cache_release(pages[i]);
+		put_page(pages[i]);
 
 	kfree(pages);
 
diff --git a/drivers/video/fbdev/pxa168fb.c b/drivers/video/fbdev/pxa168fb.c
index efb57c059..def3a501a 100644
--- a/drivers/video/fbdev/pxa168fb.c
+++ b/drivers/video/fbdev/pxa168fb.c
@@ -680,8 +680,8 @@ static int pxa168fb_probe(struct platform_device *pdev)
 	 */
 	info->fix.smem_len = PAGE_ALIGN(DEFAULT_FB_SIZE);
 
-	info->screen_base = dma_alloc_writecombine(fbi->dev, info->fix.smem_len,
-						&fbi->fb_start_dma, GFP_KERNEL);
+	info->screen_base = dma_alloc_wc(fbi->dev, info->fix.smem_len,
+					 &fbi->fb_start_dma, GFP_KERNEL);
 	if (info->screen_base == NULL) {
 		ret = -ENOMEM;
 		goto failed_free_info;
@@ -804,8 +804,8 @@ static int pxa168fb_remove(struct platform_device *pdev)
 
 	irq = platform_get_irq(pdev, 0);
 
-	dma_free_writecombine(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
-				info->screen_base, info->fix.smem_start);
+	dma_free_wc(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
+		    info->screen_base, info->fix.smem_start);
 
 	clk_disable(fbi->clk);
 
diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c
index 33b2bb315..2c0487f4f 100644
--- a/drivers/video/fbdev/pxafb.c
+++ b/drivers/video/fbdev/pxafb.c
@@ -2446,8 +2446,8 @@ static int pxafb_remove(struct platform_device *dev)
 
 	free_pages_exact(fbi->video_mem, fbi->video_mem_size);
 
-	dma_free_writecombine(&dev->dev, fbi->dma_buff_size,
-			fbi->dma_buff, fbi->dma_buff_phys);
+	dma_free_wc(&dev->dev, fbi->dma_buff_size, fbi->dma_buff,
+		    fbi->dma_buff_phys);
 
 	iounmap(fbi->mmio_base);
 
diff --git a/drivers/video/fbdev/s3c-fb.c b/drivers/video/fbdev/s3c-fb.c
index f72dd1245..5f4f696c2 100644
--- a/drivers/video/fbdev/s3c-fb.c
+++ b/drivers/video/fbdev/s3c-fb.c
@@ -1105,8 +1105,7 @@ static int s3c_fb_alloc_memory(struct s3c_fb *sfb, struct s3c_fb_win *win)
 
 	dev_dbg(sfb->dev, "want %u bytes for window\n", size);
 
-	fbi->screen_base = dma_alloc_writecombine(sfb->dev, size,
-						  &map_dma, GFP_KERNEL);
+	fbi->screen_base = dma_alloc_wc(sfb->dev, size, &map_dma, GFP_KERNEL);
 	if (!fbi->screen_base)
 		return -ENOMEM;
 
@@ -1131,8 +1130,8 @@ static void s3c_fb_free_memory(struct s3c_fb *sfb, struct s3c_fb_win *win)
 	struct fb_info *fbi = win->fbinfo;
 
 	if (fbi->screen_base)
-		dma_free_writecombine(sfb->dev, PAGE_ALIGN(fbi->fix.smem_len),
-			      fbi->screen_base, fbi->fix.smem_start);
+		dma_free_wc(sfb->dev, PAGE_ALIGN(fbi->fix.smem_len),
+		            fbi->screen_base, fbi->fix.smem_start);
 }
 
 /**
diff --git a/drivers/video/fbdev/s3c2410fb.c b/drivers/video/fbdev/s3c2410fb.c
index d6704add1..0dd86be36 100644
--- a/drivers/video/fbdev/s3c2410fb.c
+++ b/drivers/video/fbdev/s3c2410fb.c
@@ -645,8 +645,8 @@ static int s3c2410fb_map_video_memory(struct fb_info *info)
 
 	dprintk("map_video_memory(fbi=%p) map_size %u\n", fbi, map_size);
 
-	info->screen_base = dma_alloc_writecombine(fbi->dev, map_size,
-						   &map_dma, GFP_KERNEL);
+	info->screen_base = dma_alloc_wc(fbi->dev, map_size, &map_dma,
+					 GFP_KERNEL);
 
 	if (info->screen_base) {
 		/* prevent initial garbage on screen */
@@ -667,8 +667,8 @@ static inline void s3c2410fb_unmap_video_memory(struct fb_info *info)
 {
 	struct s3c2410fb_info *fbi = info->par;
 
-	dma_free_writecombine(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
-			      info->screen_base, info->fix.smem_start);
+	dma_free_wc(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
+		    info->screen_base, info->fix.smem_start);
 }
 
 static inline void modify_gpio(void __iomem *reg,
diff --git a/drivers/video/fbdev/sa1100fb.c b/drivers/video/fbdev/sa1100fb.c
index dcf774c15..fc2aaa5ac 100644
--- a/drivers/video/fbdev/sa1100fb.c
+++ b/drivers/video/fbdev/sa1100fb.c
@@ -567,8 +567,8 @@ static int sa1100fb_mmap(struct fb_info *info,
 
 	if (off < info->fix.smem_len) {
 		vma->vm_pgoff += 1; /* skip over the palette */
-		return dma_mmap_writecombine(fbi->dev, vma, fbi->map_cpu,
-					     fbi->map_dma, fbi->map_size);
+		return dma_mmap_wc(fbi->dev, vma, fbi->map_cpu, fbi->map_dma,
+				   fbi->map_size);
 	}
 
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
@@ -1099,8 +1099,8 @@ static int sa1100fb_map_video_memory(struct sa1100fb_info *fbi)
 	 * of the framebuffer.
 	 */
 	fbi->map_size = PAGE_ALIGN(fbi->fb.fix.smem_len + PAGE_SIZE);
-	fbi->map_cpu = dma_alloc_writecombine(fbi->dev, fbi->map_size,
-					      &fbi->map_dma, GFP_KERNEL);
+	fbi->map_cpu = dma_alloc_wc(fbi->dev, fbi->map_size, &fbi->map_dma,
+				    GFP_KERNEL);
 
 	if (fbi->map_cpu) {
 		fbi->fb.screen_base = fbi->map_cpu + PAGE_SIZE;
diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c
index 48ccf6db6..e9cf19977 100644
--- a/drivers/video/fbdev/simplefb.c
+++ b/drivers/video/fbdev/simplefb.c
@@ -174,7 +174,7 @@ static int simplefb_parse_pd(struct platform_device *pdev,
 struct simplefb_par {
 	u32 palette[PSEUDO_PALETTE_SIZE];
 #if defined CONFIG_OF && defined CONFIG_COMMON_CLK
-	int clk_count;
+	unsigned int clk_count;
 	struct clk **clks;
 #endif
 #if defined CONFIG_OF && defined CONFIG_REGULATOR
@@ -213,7 +213,7 @@ static int simplefb_clocks_init(struct simplefb_par *par,
 		return 0;
 
 	par->clk_count = of_clk_get_parent_count(np);
-	if (par->clk_count <= 0)
+	if (!par->clk_count)
 		return 0;
 
 	par->clks = kcalloc(par->clk_count, sizeof(struct clk *), GFP_KERNEL);
diff --git a/drivers/video/fbdev/sis/init301.c b/drivers/video/fbdev/sis/init301.c
index 295e0deda..20f7234e8 100644
--- a/drivers/video/fbdev/sis/init301.c
+++ b/drivers/video/fbdev/sis/init301.c
@@ -2151,17 +2151,15 @@ SiS_GetVCLK2Ptr(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned shor
 		unsigned short RefreshRateTableIndex)
 {
   unsigned short CRT2Index, VCLKIndex = 0, VCLKIndexGEN = 0, VCLKIndexGENCRT = 0;
-  unsigned short modeflag, resinfo, tempbx;
+  unsigned short resinfo, tempbx;
   const unsigned char *CHTVVCLKPtr = NULL;
 
   if(ModeNo <= 0x13) {
-     modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
      resinfo = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ResInfo;
      CRT2Index = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_CRT2CRTC;
      VCLKIndexGEN = (SiS_GetRegByte((SiS_Pr->SiS_P3ca+0x02)) >> 2) & 0x03;
      VCLKIndexGENCRT = VCLKIndexGEN;
   } else {
-     modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
      resinfo = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_RESINFO;
      CRT2Index = SiS_Pr->SiS_RefIndex[RefreshRateTableIndex].Ext_CRT2CRTC;
      VCLKIndexGEN = SiS_Pr->SiS_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
@@ -7270,7 +7268,7 @@ SiS_ShiftXPos(struct SiS_Private *SiS_Pr, int shift)
 static void
 SiS_SetGroup4_C_ELV(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex)
 {
-   unsigned short temp, temp1, resinfo = 0;
+   unsigned short temp, temp1;
    unsigned char  *ROMAddr = SiS_Pr->VirtualRomBase;
 
    if(!(SiS_Pr->SiS_VBType & VB_SIS30xCLV)) return;
@@ -7282,10 +7280,6 @@ SiS_SetGroup4_C_ELV(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned
       if(!(ROMAddr[0x61] & 0x04)) return;
    }
 
-   if(ModeNo > 0x13) {
-      resinfo = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_RESINFO;
-   }
-
    SiS_SetRegOR(SiS_Pr->SiS_Part4Port,0x3a,0x08);
    temp = SiS_GetReg(SiS_Pr->SiS_Part4Port,0x3a);
    if(!(temp & 0x01)) {
diff --git a/drivers/video/fbdev/skeletonfb.c b/drivers/video/fbdev/skeletonfb.c
index fefde7c6a..f948baa16 100644
--- a/drivers/video/fbdev/skeletonfb.c
+++ b/drivers/video/fbdev/skeletonfb.c
@@ -614,22 +614,6 @@ int xxxfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 }
 
 /**
- *	xxxfb_rotate -  NOT a required function. If your hardware
- *			supports rotation the whole screen then 
- *			you would provide a hook for this. 
- *
- *      @info: frame buffer structure that represents a single frame buffer
- *	@angle: The angle we rotate the screen.   
- *
- *      This operation is used to set or alter the properities of the
- *	cursor.
- */
-void xxxfb_rotate(struct fb_info *info, int angle)
-{
-/* Will be deprecated */
-}
-
-/**
  *	xxxfb_sync - NOT a required function. Normally the accel engine 
  *		     for a graphics card take a specific amount of time.
  *		     Often we have to wait for the accelerator to finish
@@ -665,7 +649,6 @@ static struct fb_ops xxxfb_ops = {
 	.fb_copyarea	= xxxfb_copyarea,	/* Needed !!! */
 	.fb_imageblit	= xxxfb_imageblit,	/* Needed !!! */
 	.fb_cursor	= xxxfb_cursor,		/* Optional !!! */
-	.fb_rotate	= xxxfb_rotate,
 	.fb_sync	= xxxfb_sync,
 	.fb_ioctl	= xxxfb_ioctl,
 	.fb_mmap	= xxxfb_mmap,
diff --git a/drivers/video/fbdev/sunxvr1000.c b/drivers/video/fbdev/sunxvr1000.c
index 08879bdfa..fb37f6e05 100644
--- a/drivers/video/fbdev/sunxvr1000.c
+++ b/drivers/video/fbdev/sunxvr1000.c
@@ -1,9 +1,10 @@
-/* sunxvr1000.c: Sun XVR-1000 driver for sparc64 systems
+/* sunxvr1000.c: Sun XVR-1000 fb driver for sparc64 systems
+ *
+ * License: GPL
  *
  * Copyright (C) 2010 David S. Miller (davem@davemloft.net)
  */
 
-#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/fb.h>
 #include <linux/init.h>
@@ -173,36 +174,19 @@ err_out:
 	return err;
 }
 
-static int gfb_remove(struct platform_device *op)
-{
-	struct fb_info *info = dev_get_drvdata(&op->dev);
-	struct gfb_info *gp = info->par;
-
-	unregister_framebuffer(info);
-
-	iounmap(gp->fb_base);
-
-	of_iounmap(&op->resource[6], gp->fb_base, gp->fb_size);
-
-        framebuffer_release(info);
-
-	return 0;
-}
-
 static const struct of_device_id gfb_match[] = {
 	{
 		.name = "SUNW,gfb",
 	},
 	{},
 };
-MODULE_DEVICE_TABLE(of, ffb_match);
 
 static struct platform_driver gfb_driver = {
 	.probe		= gfb_probe,
-	.remove		= gfb_remove,
 	.driver = {
-		.name		= "gfb",
-		.of_match_table	= gfb_match,
+		.name			= "gfb",
+		.of_match_table		= gfb_match,
+		.suppress_bind_attrs	= true,
 	},
 };
 
@@ -213,16 +197,4 @@ static int __init gfb_init(void)
 
 	return platform_driver_register(&gfb_driver);
 }
-
-static void __exit gfb_exit(void)
-{
-	platform_driver_unregister(&gfb_driver);
-}
-
-module_init(gfb_init);
-module_exit(gfb_exit);
-
-MODULE_DESCRIPTION("framebuffer driver for Sun XVR-1000 graphics");
-MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
-MODULE_VERSION("1.0");
-MODULE_LICENSE("GPL");
+device_initcall(gfb_init);
diff --git a/drivers/video/fbdev/sunxvr2500.c b/drivers/video/fbdev/sunxvr2500.c
index 843b6bab0..1a053292f 100644
--- a/drivers/video/fbdev/sunxvr2500.c
+++ b/drivers/video/fbdev/sunxvr2500.c
@@ -1,9 +1,10 @@
-/* s3d.c: Sun 3DLABS XVR-2500 et al. driver for sparc64 systems
+/* sunxvr2500.c: Sun 3DLABS XVR-2500 et al. fb driver for sparc64 systems
+ *
+ * License: GPL
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
  */
 
-#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/fb.h>
 #include <linux/pci.h>
@@ -219,22 +220,6 @@ err_out:
 	return err;
 }
 
-static void s3d_pci_unregister(struct pci_dev *pdev)
-{
-	struct fb_info *info = pci_get_drvdata(pdev);
-	struct s3d_info *sp = info->par;
-
-	unregister_framebuffer(info);
-
-	iounmap(sp->fb_base);
-
-	pci_release_region(pdev, 1);
-
-        framebuffer_release(info);
-
-	pci_disable_device(pdev);
-}
-
 static struct pci_device_id s3d_pci_table[] = {
 	{	PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x002c),	},
 	{	PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x002d),	},
@@ -248,10 +233,12 @@ static struct pci_device_id s3d_pci_table[] = {
 };
 
 static struct pci_driver s3d_driver = {
+	.driver = {
+		.suppress_bind_attrs = true,
+	},
 	.name		= "s3d",
 	.id_table	= s3d_pci_table,
 	.probe		= s3d_pci_register,
-	.remove		= s3d_pci_unregister,
 };
 
 static int __init s3d_init(void)
@@ -261,16 +248,4 @@ static int __init s3d_init(void)
 
 	return pci_register_driver(&s3d_driver);
 }
-
-static void __exit s3d_exit(void)
-{
-	pci_unregister_driver(&s3d_driver);
-}
-
-module_init(s3d_init);
-module_exit(s3d_exit);
-
-MODULE_DESCRIPTION("framebuffer driver for Sun XVR-2500 graphics");
-MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
-MODULE_VERSION("1.0");
-MODULE_LICENSE("GPL");
+device_initcall(s3d_init);
diff --git a/drivers/video/fbdev/sunxvr500.c b/drivers/video/fbdev/sunxvr500.c
index 387350d00..dc0d886e4 100644
--- a/drivers/video/fbdev/sunxvr500.c
+++ b/drivers/video/fbdev/sunxvr500.c
@@ -1,9 +1,10 @@
-/* sunxvr500.c: Sun 3DLABS XVR-500 Expert3D driver for sparc64 systems
+/* sunxvr500.c: Sun 3DLABS XVR-500 Expert3D fb driver for sparc64 systems
+ *
+ * License: GPL
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
  */
 
-#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/fb.h>
 #include <linux/pci.h>
@@ -392,25 +393,6 @@ err_out:
 	return err;
 }
 
-static void e3d_pci_unregister(struct pci_dev *pdev)
-{
-	struct fb_info *info = pci_get_drvdata(pdev);
-	struct e3d_info *ep = info->par;
-
-	unregister_framebuffer(info);
-
-	iounmap(ep->ramdac);
-	iounmap(ep->fb_base);
-
-	pci_release_region(pdev, 0);
-	pci_release_region(pdev, 1);
-
-	fb_dealloc_cmap(&info->cmap);
-        framebuffer_release(info);
-
-	pci_disable_device(pdev);
-}
-
 static struct pci_device_id e3d_pci_table[] = {
 	{	PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x7a0),	},
 	{	PCI_DEVICE(0x1091, 0x7a0),			},
@@ -434,10 +416,12 @@ static struct pci_device_id e3d_pci_table[] = {
 };
 
 static struct pci_driver e3d_driver = {
+	.driver = {
+		.suppress_bind_attrs = true,
+	},
 	.name		= "e3d",
 	.id_table	= e3d_pci_table,
 	.probe		= e3d_pci_register,
-	.remove		= e3d_pci_unregister,
 };
 
 static int __init e3d_init(void)
@@ -447,16 +431,4 @@ static int __init e3d_init(void)
 
 	return pci_register_driver(&e3d_driver);
 }
-
-static void __exit e3d_exit(void)
-{
-	pci_unregister_driver(&e3d_driver);
-}
-
-module_init(e3d_init);
-module_exit(e3d_exit);
-
-MODULE_DESCRIPTION("framebuffer driver for Sun XVR-500 graphics");
-MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
-MODULE_VERSION("1.0");
-MODULE_LICENSE("GPL");
+device_initcall(e3d_init);