diff options
| author | Wenjing Liu | 2019-12-13 11:54:29 -0500 |
|---|---|---|
| committer | Alex Deucher | 2020-01-16 14:12:01 -0500 |
| commit | ed581a0ace44fc4f454e7765a1625a46258080c7 (patch) | |
| tree | 716fce1e877dcc6bf34b00365373ec309ac4df0d /drivers/gpu | |
| parent | 95e0b96d84b44663f6b2b8bf1c81b3bfbfdb8f38 (diff) | |
drm/amd/display: wait for update when setting dpg test pattern
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>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 13 |
1 files changed, 13 insertions, 0 deletions
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 f703b3998644..e415f7730f43 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 @@ -3611,6 +3611,7 @@ 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: @@ -3646,6 +3647,12 @@ 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, @@ -3654,6 +3661,12 @@ 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; |