[PATCH 03/13] OMAPDSS: DISPC: Flush posted writes when enabling outputs
flat view
STALE5431d
From: Tomi Valkeinen <hidden>
Date: 2011-11-24 13:29:31
Also in:
linux-omap
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
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 <redacted> --- 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)
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1.7.4.1