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drm/amd/display: wait for update when setting dpg test pattern

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Test pattern should be applied to hardware when exiting set test pattern
function.

Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenjing Liu 2019-12-13 11:54:29 -05:00 committed by Alex Deucher
parent 95e0b96d84
commit ed581a0ace
1 changed files with 13 additions and 0 deletions
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13
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
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@ -3611,6 +3611,7 @@ static void set_crtc_test_pattern(struct dc_link *link,
struct pipe_ctx *odm_pipe; struct pipe_ctx *odm_pipe;
enum controller_dp_color_space controller_color_space; enum controller_dp_color_space controller_color_space;
int opp_cnt = 1; int opp_cnt = 1;
uint8_t count = 0;
switch (test_pattern_color_space) { switch (test_pattern_color_space) {
case DP_TEST_PATTERN_COLOR_SPACE_RGB: case DP_TEST_PATTERN_COLOR_SPACE_RGB:
@ -3646,6 +3647,12 @@ static void set_crtc_test_pattern(struct dc_link *link,
NULL, NULL,
width, width,
height); 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, opp->funcs->opp_set_disp_pattern_generator(opp,
controller_test_pattern, controller_test_pattern,
@ -3654,6 +3661,12 @@ static void set_crtc_test_pattern(struct dc_link *link,
NULL, NULL,
width, width,
height); 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; break;