diff options
| author | Yongqiang Sun <yongqiang.sun@amd.com> | 2017-06-26 16:25:10 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-09-26 18:08:32 -0400 |
| commit | 97416d4cbb9efab2eea7740fa4ce86b317da06c5 (patch) | |
| tree | a9c242ec7db172e399fdd1ccf7ba7316c2285319 /drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c | |
| parent | 7a8368e6f521871976f3d173f837dd921d06130d (diff) | |
drm/amd/display: set drr during program timing.
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/dce110/dce110_timing_generator.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c index ec599276ed2e..7f93d6d83cfd 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c @@ -629,6 +629,27 @@ void dce110_timing_generator_program_blanking( CRTC_V_TOTAL); dm_write_reg(ctx, addr, value); + /* In case of V_TOTAL_CONTROL is on, make sure V_TOTAL_MAX and + * V_TOTAL_MIN are equal to V_TOTAL. + */ + addr = CRTC_REG(mmCRTC_V_TOTAL_MAX); + value = dm_read_reg(ctx, addr); + set_reg_field_value( + value, + timing->v_total - 1, + CRTC_V_TOTAL_MAX, + CRTC_V_TOTAL_MAX); + dm_write_reg(ctx, addr, value); + + addr = CRTC_REG(mmCRTC_V_TOTAL_MIN); + value = dm_read_reg(ctx, addr); + set_reg_field_value( + value, + timing->v_total - 1, + CRTC_V_TOTAL_MIN, + CRTC_V_TOTAL_MIN); + dm_write_reg(ctx, addr, value); + addr = CRTC_REG(mmCRTC_H_BLANK_START_END); value = dm_read_reg(ctx, addr); |