From: Wenjing Liu <Wenjing.Liu@xxxxxxx>
Test pattern should be applied to hardware when exiting set test pattern
function.
Signed-off-by: Wenjing Liu <Wenjing.Liu@xxxxxxx>
Reviewed-by: Nikola Cornij <Nikola.Cornij@xxxxxxx>
Acked-by: Harry Wentland <harry.wentland@xxxxxxx>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 0d0507cc9bf9..46f16a77e3a4 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -3612,6 +3612,7 @@ static void set_crtc_test_pattern(struct dc_link *link,
struct pipe_ctx *odm_pipe;
enum controller_dp_color_space controller_color_space;
int opp_cnt = 1;
+ uint8_t count = 0;
switch (test_pattern_color_space) {
case DP_TEST_PATTERN_COLOR_SPACE_RGB:
@@ -3647,6 +3648,12 @@ static void set_crtc_test_pattern(struct dc_link *link,
NULL,
width,
height);
+ /* wait for dpg to blank pixel data with test pattern */
+ for (count = 0; count < 1000; count++)
+ if (odm_opp->funcs->dpg_is_blanked(odm_opp))
+ break;
+ else
+ udelay(100);
}
opp->funcs->opp_set_disp_pattern_generator(opp,
controller_test_pattern,
@@ -3655,6 +3662,12 @@ static void set_crtc_test_pattern(struct dc_link *link,
NULL,
width,
height);
+ /* wait for dpg to blank pixel data with test pattern */
+ for (count = 0; count < 1000; count++)
+ if (opp->funcs->dpg_is_blanked(opp))
+ break;
+ else
+ udelay(100);
}
}
break;
--
2.24.1
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