mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-14 05:22:19 -04:00
Code Issues Packages Projects Releases Wiki Activity

OMAPDSS: DISPC: Flush posted writes when enabling outputs

Browse Source 
Flush posted write in _enable_lcd_out() and _enable_digit_out(). This
ensures the the lcd/digit bit is written before the code starts waiting
for interrupts about enabling/disabling the output.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen
2011-10-12 10:17:02 +03:00
parent 968f8e97a3
commit b6a44e7748
1 changed files with 8 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/video/omap2/dss/dispc.c
View File

@@ -1916,10 +1916,14 @@ static void dispc_disable_isr(void *data, u32 mask)
static void _enable_lcd_out(enum omap_channel channel, bool enable)
{
if (channel == OMAP_DSS_CHANNEL_LCD2)
if (channel == OMAP_DSS_CHANNEL_LCD2) {
REG_FLD_MOD(DISPC_CONTROL2, enable ? 1 : 0, 0, 0);
else
/* flush posted write */
dispc_read_reg(DISPC_CONTROL2);
} else {
REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0);
dispc_read_reg(DISPC_CONTROL);
}
}
static void dispc_mgr_enable_lcd_out(enum omap_channel channel, bool enable)
@@ -1967,6 +1971,8 @@ static void dispc_mgr_enable_lcd_out(enum omap_channel channel, bool enable)
static void _enable_digit_out(bool enable)
{
REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1);
/* flush posted write */
dispc_read_reg(DISPC_CONTROL);
}
static void dispc_mgr_enable_digit_out(bool enable)