[PATCH] ARM: 2687/1: i.MX framebuffer: make dmacr register platform configurable

Patch from Sascha Hauer

The dmacr needs different settings on some boards. This patch makes the
register configurable by the platform part.
Also we have imxfb_disable_controller(), so lets use it.

Signed-off-by: Steven Scholz
Signed-off-by: Sascha Hauer
Signed-off-by: Russell King <[e-mail]>

drivers/video/imxfb.c

···
 	/* disable hardware cursor */
 	LCDC_CPOS	&= ~(CPOS_CC0 | CPOS_CC1);
 
-	/* fixed burst length (see erratum 11) */
-	LCDC_DMACR = DMACR_BURST | DMACR_HM(8) | DMACR_TM(2);
-
 	LCDC_RMCR = RMCR_LCDC_EN;
 
 	if(fbi->backlight_power)
···
 	LCDC_PCR	= fbi->pcr;
 	LCDC_PWMR	= fbi->pwmr;
 	LCDC_LSCR1	= fbi->lscr1;
+	LCDC_DMACR	= fbi->dmacr;
 
 	return 0;
 }
···
 	fbi->cmap_inverse		= inf->cmap_inverse;
 	fbi->pcr			= inf->pcr;
 	fbi->lscr1			= inf->lscr1;
+	fbi->dmacr			= inf->dmacr;
 	fbi->pwmr			= inf->pwmr;
 	fbi->lcd_power			= inf->lcd_power;
 	fbi->backlight_power		= inf->backlight_power;
···
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct fb_info *info = dev_get_drvdata(dev);
+	struct imxfb_info *fbi = info->par;
 	struct resource *res;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	/* disable LCD controller */
-	LCDC_RMCR &= ~RMCR_LCDC_EN;
+	imxfb_disable_controller(fbi);
 
 	unregister_framebuffer(info);
 
···
 
 void  imxfb_shutdown(struct device * dev)
 {
-	/* disable LCD Controller */
-	LCDC_RMCR &= ~RMCR_LCDC_EN;
+	struct fb_info *info = dev_get_drvdata(dev);
+	struct imxfb_info *fbi = info->par;
+	imxfb_disable_controller(fbi);
 }
 
 static struct device_driver imxfb_driver = {

drivers/video/imxfb.h

···
 	u_int			pcr;
 	u_int			pwmr;
 	u_int			lscr1;
+	u_int			dmacr;
 	u_int			cmap_inverse:1,
 				cmap_static:1,
 				unused:30;

include/asm-arm/arch-imx/imxfb.h

···
 	u_int		pcr;
 	u_int		pwmr;
 	u_int		lscr1;
+	u_int		dmacr;
 
 	u_char * fixed_screen_cpu;
 	dma_addr_t fixed_screen_dma;