From 772a9e631ccad0423ed6d08acb3a4b1084ae2613 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <sascha@saschahauer.de>
Date: Sun, 17 Jul 2005 20:15:36 +0100
Subject: [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>
---
drivers/video/imxfb.c | 14 +++++++-------
drivers/video/imxfb.h | 1 +
2 files changed, 8 insertions(+), 7 deletions(-)
(limited to 'drivers')
diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index 8fe1c12a17..cabd53cec9 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -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 = {
diff --git a/drivers/video/imxfb.h b/drivers/video/imxfb.h
index 128c3ee515..e837a8b48e 100644
--- a/drivers/video/imxfb.h
+++ b/drivers/video/imxfb.h
@@ -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;
--
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