diff options
| author | Eric Yang <Eric.Yang2@amd.com> | 2021-08-25 20:02:22 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-09-14 15:57:10 -0400 |
| commit | ac02dc34258569b793b78483154ca336f103946f (patch) | |
| tree | 5d4582fb0c534025912ad5e7ac2536e4e19e293c /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | |
| parent | 6513104ba4a808de07722ef4ffb960f0229752b4 (diff) | |
drm/amd/display: Add periodic detection when zstate is enabled
[Why]
When system is in Z10 HPD interrupts cannot fire, we may miss display
configuration changes.
[How]
When Zstate is enabled, if DMUB indicate DCN has lost power, do a
complete detection periodically.
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c index 8c1792637836..1aa69dd8e02f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -793,4 +793,10 @@ void dm_set_phyd32clk(struct dc_context *ctx, int freq_khz) // FPGA programming for this clock in diags framework that // needs to go through dm layer, therefore leave dummy interace here } + + +void dm_helpers_enable_periodic_detection(struct dc_context *ctx, bool enable) +{ + /* TODO: add peridic detection implementation */ +} #endif
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