From: Yihan Zhu <yihan.zhu@xxxxxxx>
[WHY]
OPPs couldn't disconnect from the ODM that cause the double buffer pending not being latched due to missing VUPDATE.
[HOW]
Moving memory blanking before OTG turn off to make sure double buffer latched correctly.
Reviewed-by: Dmytro Laktyushkin <dmytro.laktyushkin@xxxxxxx>
Acked-by: Zaeem Mohamed <zaeem.mohamed@xxxxxxx>
Signed-off-by: Yihan Zhu <yihan.zhu@xxxxxxx>
---
.../gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.c b/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.c
index de83761edce8..6bbbf313b2bb 100644
--- a/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.c
@@ -121,6 +121,17 @@ 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);
+
+ REG_UPDATE_5(OPTC_DATA_SOURCE_SELECT,
+ OPTC_SEG0_SRC_SEL, 0xf,
+ OPTC_SEG1_SRC_SEL, 0xf,
+ OPTC_SEG2_SRC_SEL, 0xf,
+ OPTC_SEG3_SRC_SEL, 0xf,
+ OPTC_NUM_OF_INPUT_SEGMENT, 0);
+
+ REG_UPDATE(OPTC_MEMORY_CONFIG,
+ OPTC_MEM_SEL, 0);
+
/* disable otg request until end of the first line
* in the vertical blank region
*/
--
2.34.1
