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path: root/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_optc.c
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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn31/dcn31_optc.c')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dcn31/dcn31_optc.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_optc.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_optc.c
index 8afe2130d7c5..e05527a3a8ba 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_optc.c
@@ -124,7 +124,6 @@ static bool optc31_enable_crtc(struct timing_generator *optc)
static bool optc31_disable_crtc(struct timing_generator *optc)
{
struct optc *optc1 = DCN10TG_FROM_TG(optc);
-
/* disable otg request until end of the first line
* in the vertical blank region
*/
@@ -138,6 +137,7 @@ static bool optc31_disable_crtc(struct timing_generator *optc)
REG_WAIT(OTG_CLOCK_CONTROL,
OTG_BUSY, 0,
1, 100000);
+ optc1_clear_optc_underflow(optc);
return true;
}
@@ -158,6 +158,9 @@ static bool optc31_immediate_disable_crtc(struct timing_generator *optc)
OTG_BUSY, 0,
1, 100000);
+ /* clear the false state */
+ optc1_clear_optc_underflow(optc);
+
return true;
}