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[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>
This commit is contained in:
Sascha Hauer 2005-07-17 20:15:36 +01:00 committed by Russell King
parent 246b49768b
commit 772a9e631c
3 changed files with 9 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/video/imxfb.c
View File

@ -249,9 +249,6 @@ static void imxfb_enable_controller(struct imxfb_info *fbi)
/* 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 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
LCDC_PCR = fbi->pcr;
LCDC_PWMR = fbi->pwmr;
LCDC_LSCR1 = fbi->lscr1;
LCDC_DMACR = fbi->dmacr;
return 0;
}
@ -509,6 +507,7 @@ static int __init imxfb_init_fbinfo(struct device *dev)
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 @@ static int imxfb_remove(struct device *dev)
{
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 @@ static int imxfb_remove(struct device *dev)
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 = {

1
drivers/video/imxfb.h
View File

@ -54,6 +54,7 @@ struct imxfb_info {
u_int pcr;
u_int pwmr;
u_int lscr1;
u_int dmacr;
u_int cmap_inverse:1,
cmap_static:1,
unused:30;

1
include/asm-arm/arch-imx/imxfb.h
View File

@ -25,6 +25,7 @@ struct imxfb_mach_info {
u_int pcr;
u_int pwmr;
u_int lscr1;
u_int dmacr;
u_char * fixed_screen_cpu;
dma_addr_t fixed_screen_dma;