Merge tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linu…

…x-2.6

Pull fbdev updates from Florian Tobias Schandinat:
 - large updates for OMAP
   - support for LCD3 overlay manager (omap5)
   - omapdss output cleanup
   - removal of passive matrix LCD support as there are no drivers for
     such panels for DSS or DSS2 and nobody complained (cleanup)
 - large updates for SH Mobile
   - overlay support
   - separating MERAM (cache) from framebuffer driver
 - some updates for Exynos and da8xx-fb
 - various other small patches

* tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6: (78 commits)
  da8xx-fb: fix compile issue due to missing include
  fbdev: Make pixel_to_pat() failure mode more friendly
  da8xx-fb: do not turn ON LCD backlight unless LCDC is enabled
  fbdev: sh_mobile_lcdc: Fix vertical panning step
  video: exynos mipi dsi: Fix mipi dsi regulators handling issue
  video: da8xx-fb: do clock reset of revision 2 LCDC before enabling
  arm: da850: configure LCDC fifo threshold
  video: da8xx-fb: configure FIFO threshold to reduce underflow errors
  video: da8xx-fb: fix flicker due to 1 frame delay in updated frame
  video: da8xx-fb rev2: fix disabling of palette completion interrupt
  da8xx-fb: add missing FB_BLANK operations
  video: exynos_dp: use usleep_range instead of delay
  video: exynos_dp: check the only INTERLANE_ALIGN_DONE bit during Link Training
  fb: epson1355fb: Fix section mismatch
  video: exynos_dp: fix wrong DPCD address during Link Training
  video/smscufx: fix line counting in fb_write
  aty128fb: Fix coding style issues
  fbdev: sh_mobile_lcdc: Fix pan offset computation in YUV mode
  fbdev: sh_mobile_lcdc: Fix overlay registers update during pan operation
  fbdev: sh_mobile_lcdc: Support horizontal panning
  ...

Documentation/ABI/testing/sysfs-devices-platform-sh_mobile_lcdc_fb

@@ -0,0 +1,44 @@
+What:		/sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_alpha
+Date:		May 2012
+Contact:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Description:
+		This file is only available on fb[0-9] devices corresponding
+		to overlay planes.
+
+		Stores the alpha blending value for the overlay. Values range
+		from 0 (transparent) to 255 (opaque). The value is ignored if
+		the mode is not set to Alpha Blending.
+
+What:		/sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_mode
+Date:		May 2012
+Contact:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Description:
+		This file is only available on fb[0-9] devices corresponding
+		to overlay planes.
+
+		Selects the composition mode for the overlay. Possible values
+		are
+
+		0 - Alpha Blending
+		1 - ROP3
+
+What:		/sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_position
+Date:		May 2012
+Contact:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Description:
+		This file is only available on fb[0-9] devices corresponding
+		to overlay planes.
+
+		Stores the x,y overlay position on the display in pixels. The
+		position format is `[0-9]+,[0-9]+'.
+
+What:		/sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_rop3
+Date:		May 2012
+Contact:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Description:
+		This file is only available on fb[0-9] devices corresponding
+		to overlay planes.
+
+		Stores the raster operation (ROP3) for the overlay. Values
+		range from 0 to 255. The value is ignored if the mode is not
+		set to ROP3.

arch/arm/mach-davinci/devices-da8xx.c

@@ -546,6 +546,7 @@ static struct lcd_ctrl_config lcd_cfg = {
 	.sync_edge		= 0,
 	.sync_ctrl		= 1,
 	.raster_order		= 0,
+	.fifo_th		= 6,
 };
 
 struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata = {

arch/arm/mach-omap2/display.c

@@ -37,6 +37,7 @@
 
 #define DISPC_CONTROL		0x0040
 #define DISPC_CONTROL2		0x0238
+#define DISPC_CONTROL3		0x0848
 #define DISPC_IRQSTATUS		0x0018
 
 #define DSS_SYSCONFIG		0x10
@@ -52,6 +53,7 @@
 #define EVSYNC_EVEN_IRQ_SHIFT	2
 #define EVSYNC_ODD_IRQ_SHIFT	3
 #define FRAMEDONE2_IRQ_SHIFT	22
+#define FRAMEDONE3_IRQ_SHIFT	30
 #define FRAMEDONETV_IRQ_SHIFT	24
 
 /*
@@ -376,7 +378,7 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
 static void dispc_disable_outputs(void)
 {
 	u32 v, irq_mask = 0;
-	bool lcd_en, digit_en, lcd2_en = false;
+	bool lcd_en, digit_en, lcd2_en = false, lcd3_en = false;
 	int i;
 	struct omap_dss_dispc_dev_attr *da;
 	struct omap_hwmod *oh;
@@ -405,7 +407,13 @@ static void dispc_disable_outputs(void)
 		lcd2_en = v & LCD_EN_MASK;
 	}
 
-	if (!(lcd_en | digit_en | lcd2_en))
+	/* store value of LCDENABLE for LCD3 */
+	if (da->manager_count > 3) {
+		v = omap_hwmod_read(oh, DISPC_CONTROL3);
+		lcd3_en = v & LCD_EN_MASK;
+	}
+
+	if (!(lcd_en | digit_en | lcd2_en | lcd3_en))
 		return; /* no managers currently enabled */
 
 	/*
@@ -426,10 +434,12 @@ static void dispc_disable_outputs(void)
 
 	if (lcd2_en)
 		irq_mask |= 1 << FRAMEDONE2_IRQ_SHIFT;
+	if (lcd3_en)
+		irq_mask |= 1 << FRAMEDONE3_IRQ_SHIFT;
 
 	/*
 	 * clear any previous FRAMEDONE, FRAMEDONETV,
-	 * EVSYNC_EVEN/ODD or FRAMEDONE2 interrupts
+	 * EVSYNC_EVEN/ODD, FRAMEDONE2 or FRAMEDONE3 interrupts
 	 */
 	omap_hwmod_write(irq_mask, oh, DISPC_IRQSTATUS);
 
@@ -445,12 +455,19 @@ static void dispc_disable_outputs(void)
 		omap_hwmod_write(v, oh, DISPC_CONTROL2);
 	}
 
+	/* disable LCD3 manager */
+	if (da->manager_count > 3) {
+		v = omap_hwmod_read(oh, DISPC_CONTROL3);
+		v &= ~LCD_EN_MASK;
+		omap_hwmod_write(v, oh, DISPC_CONTROL3);
+	}
+
 	i = 0;
 	while ((omap_hwmod_read(oh, DISPC_IRQSTATUS) & irq_mask) !=
 	       irq_mask) {
 		i++;
 		if (i > FRAMEDONE_IRQ_TIMEOUT) {
-			pr_err("didn't get FRAMEDONE1/2 or TV interrupt\n");
+			pr_err("didn't get FRAMEDONE1/2/3 or TV interrupt\n");
 			break;
 		}
 		mdelay(1);