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| author | Yongqiang Sun | 2017-10-23 21:57:52 +0200 |
|---|---|---|
| committer | Alex Deucher | 2017-12-06 18:47:26 +0100 |
| commit | 38614212522d07835050c15eb877b6bd68bcebca (patch) | |
| tree | 56fd1eed348f1be9b3092ec61e39bf1293f5fdc9 /drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c | |
| parent | drm/amd/display: get remote dpcd caps for timing validation (diff) | |
| download | kernel-qcow2-linux-38614212522d07835050c15eb877b6bd68bcebca.tar.gz kernel-qcow2-linux-38614212522d07835050c15eb877b6bd68bcebca.tar.xz kernel-qcow2-linux-38614212522d07835050c15eb877b6bd68bcebca.zip | |
drm/amd/display: Enalbe blank data double buffer after mpc disconnected.
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c index c178cc0bd426..5d1edb017b1c 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c @@ -290,6 +290,16 @@ static void tgn10_program_timing( } +static void tgn10_set_blank_data_double_buffer(struct timing_generator *tg, bool enable) +{ + struct dcn10_timing_generator *tgn10 = DCN10TG_FROM_TG(tg); + + uint32_t blank_data_double_buffer_enable = enable ? 1 : 0; + + REG_UPDATE(OTG_DOUBLE_BUFFER_CONTROL, + OTG_BLANK_DATA_DOUBLE_BUFFER_EN, blank_data_double_buffer_enable); +} + /** * unblank_crtc * Call ASIC Control Object to UnBlank CRTC. @@ -306,8 +316,7 @@ static void tgn10_unblank_crtc(struct timing_generator *tg) * this check will be removed. */ if (vertical_interrupt_enable) - REG_UPDATE(OTG_DOUBLE_BUFFER_CONTROL, - OTG_BLANK_DATA_DOUBLE_BUFFER_EN, 1); + tgn10_set_blank_data_double_buffer(tg, true); REG_UPDATE_2(OTG_BLANK_CONTROL, OTG_BLANK_DATA_EN, 0, @@ -334,8 +343,7 @@ static void tgn10_blank_crtc(struct timing_generator *tg) OTG_BLANK_DATA_EN, 1, 1, 100000); - REG_UPDATE(OTG_DOUBLE_BUFFER_CONTROL, - OTG_BLANK_DATA_DOUBLE_BUFFER_EN, 0); + tgn10_set_blank_data_double_buffer(tg, false); } static void tgn10_set_blank(struct timing_generator *tg, @@ -1234,7 +1242,8 @@ static const struct timing_generator_funcs dcn10_tg_funcs = { .set_static_screen_control = tgn10_set_static_screen_control, .set_test_pattern = tgn10_set_test_pattern, .program_stereo = tgn10_program_stereo, - .is_stereo_left_eye = tgn10_is_stereo_left_eye + .is_stereo_left_eye = tgn10_is_stereo_left_eye, + .set_blank_data_double_buffer = tgn10_set_blank_data_double_buffer }; void dcn10_timing_generator_init(struct dcn10_timing_generator *tgn10) |