[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 <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index 8fe1c12..cabd53c 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -249,9 +249,6 @@
/* 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)
@@ -359,6 +356,7 @@
LCDC_PCR = fbi->pcr;
LCDC_PWMR = fbi->pwmr;
LCDC_LSCR1 = fbi->lscr1;
+ LCDC_DMACR = fbi->dmacr;
return 0;
}
@@ -509,6 +507,7 @@
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;
@@ -642,12 +641,12 @@
{
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);
@@ -663,8 +662,9 @@
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 = {