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| author | Leo Chen <sancchen@amd.com> | 2023-07-12 16:50:15 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-07-25 16:21:54 -0400 |
| commit | de612738e9771bd66aeb20044486c457c512f684 (patch) | |
| tree | ec844ed0524029f81a3bf5d22fb4f2cfd4300c20 /drivers/gpu | |
| parent | 4509e69a07761d08df7c46d4a08c8222522b1933 (diff) | |
| download | linux-stable-de612738e9771bd66aeb20044486c457c512f684.tar.gz linux-stable-de612738e9771bd66aeb20044486c457c512f684.tar.bz2 linux-stable-de612738e9771bd66aeb20044486c457c512f684.zip | |
drm/amd/display: Exit idle optimizations before attempt to access PHY
[Why & How]
DMUB may hang when powering down pixel clocks due to no dprefclk.
It is fixed by exiting idle optimization before the attempt to access PHY.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Leo Chen <sancchen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@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/dce110/dce110_hw_sequencer.c | 3 |
1 files changed, 3 insertions, 0 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 6c9ca43d1040..20d4d08a6a2f 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 @@ -1792,10 +1792,13 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context) hws->funcs.edp_backlight_control(edp_link_with_sink, false); } /*resume from S3, no vbios posting, no need to power down again*/ + clk_mgr_exit_optimized_pwr_state(dc, dc->clk_mgr); + power_down_all_hw_blocks(dc); disable_vga_and_power_gate_all_controllers(dc); if (edp_link_with_sink && !keep_edp_vdd_on) dc->hwss.edp_power_control(edp_link_with_sink, false); + clk_mgr_optimize_pwr_state(dc, dc->clk_mgr); } bios_set_scratch_acc_mode_change(dc->ctx->dc_bios, 1); } |