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 <[email protected]> --- 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) -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
