diff options
| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-10-12 10:17:02 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-12-02 08:54:14 +0200 |
| commit | b6a44e7748527d01b0c2f9a67686babaf0a5e53b (patch) | |
| tree | 04c606c3a05160f32c36bee0bc2a4ddcff221673 /drivers/video/omap2/dss/dispc.c | |
| parent | 968f8e97a3291a3c7c9a2dee1a85a092de638f65 (diff) | |
| download | op-kernel-dev-b6a44e7748527d01b0c2f9a67686babaf0a5e53b.zip op-kernel-dev-b6a44e7748527d01b0c2f9a67686babaf0a5e53b.tar.gz | |
OMAPDSS: DISPC: Flush posted writes when enabling outputs
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>
Diffstat (limited to 'drivers/video/omap2/dss/dispc.c')
| -rw-r--r-- | drivers/video/omap2/dss/dispc.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 5c81533..5bbd838 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -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) |
