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| author | Yao Wang1 <Yao.Wang1@amd.com> | 2021-03-09 12:51:58 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-24 06:33:36 +0300 |
| commit | 1c5ea40c2ad28f32a8d3784b81b22ec8c4729abe (patch) | |
| tree | d94e4984e9aaa6bf1dae34bbc694fde0d5bb2434 /drivers/gpu/drm/amd/display/dc/dce110 | |
| parent | 443dfba02483872384354bc0e62c656e3f82b6a9 (diff) | |
| download | linux-1c5ea40c2ad28f32a8d3784b81b22ec8c4729abe.tar.xz | |
drm/amd/display: add a func to disable accelerated mode
[Why]
When driver disabled, we driver force the YCbCr420 to RGB,
which means some register will be changed, such as
RDPCS_PHY_DP_MPLLB_TX_CLK_DIV changed from 1 to 0
When driver re-enabled, OS will Set Mode YCbCr420 again,
which means the register RDPCS_PHY_DP_MPLLB_TX_CLK_DIV
should to be 1 again, but dmub fw can’t update the
register to 1 due to the mpll is not off
[How]
Adds an interface to disable accelerated mode bit,
which allows DM to decide to call during driver
disable/unload scenarios.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Yao Wang1 <Yao.Wang1@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce110')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index 08047802d040..804092f81f85 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -1750,7 +1750,7 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context) if (edp_link_with_sink && !keep_edp_vdd_on) dc->hwss.edp_power_control(edp_link_with_sink, false); } - bios_set_scratch_acc_mode_change(dc->ctx->dc_bios); + bios_set_scratch_acc_mode_change(dc->ctx->dc_bios, 1); } static uint32_t compute_pstate_blackout_duration( |