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authorKrzysztof Helt <krzysztof.h1@wp.pl>2007-10-16 01:29:06 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:18 -0700
commit69816699fa019145dd163949d65a07093af73b67 (patch)
tree62f882257742edc6edda05349cf75789fb6fabe9 /drivers
parent9fa7bc016a688630386378c205f9ee0f7b2cc834 (diff)
s3c2410fb: adds pixclock to s3c2410fb_display
This patch adds pixelclock field to the s3c2410fb_display structure and make use of it in the driver. The Bast machine defined 9 modes but pixclock and margin values are defined only for the 640x480 modes so I removed other modes. This patch also fixes wrong display type constant for the SMDK2440 board. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/s3c2410fb.c42
1 files changed, 16 insertions, 26 deletions
diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c
index 09d19633d3b..fd05231f0c0 100644
--- a/drivers/video/s3c2410fb.c
+++ b/drivers/video/s3c2410fb.c
@@ -199,6 +199,7 @@ static int s3c2410fb_check_var(struct fb_var_screeninfo *var,
var->width = display->width;
/* copy lcd settings */
+ var->pixclock = display->pixclock;
var->left_margin = display->left_margin;
var->right_margin = display->right_margin;
var->upper_margin = display->upper_margin;
@@ -297,10 +298,6 @@ static void s3c2410fb_calculate_stn_lcd_regs(const struct fb_info *info,
unsigned wdly = (var->left_margin >> 4) - 1;
unsigned wlh = (var->hsync_len >> 4) - 1;
- dprintk("%s: var->xres = %d\n", __FUNCTION__, var->xres);
- dprintk("%s: var->yres = %d\n", __FUNCTION__, var->yres);
- dprintk("%s: var->bpp = %d\n", __FUNCTION__, var->bits_per_pixel);
-
if (type != S3C2410_LCDCON1_STN4)
hs >>= 1;
@@ -359,10 +356,6 @@ static void s3c2410fb_calculate_tft_lcd_regs(const struct fb_info *info,
const struct s3c2410fb_info *fbi = info->par;
const struct fb_var_screeninfo *var = &info->var;
- dprintk("%s: var->xres = %d\n", __FUNCTION__, var->xres);
- dprintk("%s: var->yres = %d\n", __FUNCTION__, var->yres);
- dprintk("%s: var->bpp = %d\n", __FUNCTION__, var->bits_per_pixel);
-
regs->lcdcon1 &= ~S3C2410_LCDCON1_MODEMASK;
switch (var->bits_per_pixel) {
@@ -427,28 +420,25 @@ static void s3c2410fb_activate_var(struct fb_info *info)
void __iomem *regs = fbi->io;
int type = fbi->regs.lcdcon1 & S3C2410_LCDCON1_TFT;
struct fb_var_screeninfo *var = &info->var;
+ int clkdiv = s3c2410fb_calc_pixclk(fbi, var->pixclock) / 2;
- if (var->pixclock > 0) {
- int clkdiv = s3c2410fb_calc_pixclk(fbi, var->pixclock);
-
- if (type == S3C2410_LCDCON1_TFT) {
- clkdiv = (clkdiv / 2) - 1;
- if (clkdiv < 0)
- clkdiv = 0;
- } else {
- clkdiv = (clkdiv / 2);
- if (clkdiv < 2)
- clkdiv = 2;
- }
-
- fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_CLKVAL(0x3ff);
- fbi->regs.lcdcon1 |= S3C2410_LCDCON1_CLKVAL(clkdiv);
- }
+ dprintk("%s: var->xres = %d\n", __FUNCTION__, var->xres);
+ dprintk("%s: var->yres = %d\n", __FUNCTION__, var->yres);
+ dprintk("%s: var->bpp = %d\n", __FUNCTION__, var->bits_per_pixel);
- if (type == S3C2410_LCDCON1_TFT)
+ if (type == S3C2410_LCDCON1_TFT) {
s3c2410fb_calculate_tft_lcd_regs(info, &fbi->regs);
- else
+ --clkdiv;
+ if (clkdiv < 0)
+ clkdiv = 0;
+ } else {
s3c2410fb_calculate_stn_lcd_regs(info, &fbi->regs);
+ if (clkdiv < 2)
+ clkdiv = 2;
+ }
+
+ fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_CLKVAL(0x3ff);
+ fbi->regs.lcdcon1 |= S3C2410_LCDCON1_CLKVAL(clkdiv);
/* write new registers */