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authorHeiko Stübner <heiko@sntech.de>2013-03-22 15:13:02 +0100
committerTomi Valkeinen <tomi.valkeinen@ti.com>2013-04-04 13:08:06 +0300
commita1655100ddfa10829b7d3b055611f268a82e335a (patch)
treeb00af82e6d7670881b27e83ab47490ed9a7d25fc /drivers/video/auo_k1900fb.c
parent07961ac7c0ee8b546658717034fe692fd12eefa9 (diff)
downloadlinux-a1655100ddfa10829b7d3b055611f268a82e335a.tar.gz
AUO-K190x: Use correct line length
Previously all functions that used the line length used xres directly, thus hardcoding a 8bits per pixel value. This patch calculates the correct line length according to the actual bits per pixel value and changes all line length users to use the calculated line length value. Signed-off-by: Heiko Stübner <heiko@sntech.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/auo_k1900fb.c')
-rw-r--r--drivers/video/auo_k1900fb.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/video/auo_k1900fb.c b/drivers/video/auo_k1900fb.c
index 1a9ac6e1f4b..d572d3e9c50 100644
--- a/drivers/video/auo_k1900fb.c
+++ b/drivers/video/auo_k1900fb.c
@@ -82,6 +82,7 @@ static void auok1900_update_region(struct auok190xfb_par *par, int mode,
struct device *dev = par->info->device;
unsigned char *buf = (unsigned char *)par->info->screen_base;
int xres = par->info->var.xres;
+ int line_length = par->info->fix.line_length;
u16 args[4];
pm_runtime_get_sync(dev);
@@ -100,9 +101,9 @@ static void auok1900_update_region(struct auok190xfb_par *par, int mode,
args[1] = y1 + 1;
args[2] = xres;
args[3] = y2 - y1;
- buf += y1 * xres;
+ buf += y1 * line_length;
auok190x_send_cmdargs_pixels(par, AUOK1900_CMD_PARTIALDISP, 4, args,
- ((y2 - y1) * xres)/2, (u16 *) buf);
+ ((y2 - y1) * line_length)/2, (u16 *) buf);
auok190x_send_command(par, AUOK190X_CMD_DATA_STOP);
par->update_cnt++;