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drm/amdgpu: fix SI handling in amdgpu_device_asic_has_dc_support()

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Properly handle SI DC support when CONFIG_DRM_AMD_DC_SI is not
set.

Fixes: f7f12b2582 ("drm/amdgpu: default to true in amdgpu_device_asic_has_dc_support")
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2021-11-03 23:17:50 -04:00
parent 5702d05295
commit 2d32ffd6e9
1 changed files with 11 additions and 1 deletions
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12
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View file

@ -3167,11 +3167,21 @@ bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type)
{
switch (asic_type) {
#if defined(CONFIG_DRM_AMD_DC)
#if defined(CONFIG_DRM_AMD_DC_SI)
case CHIP_TAHITI:
case CHIP_PITCAIRN:
case CHIP_VERDE:
case CHIP_OLAND:
/*
* We have systems in the wild with these ASICs that require
* LVDS and VGA support which is not supported with DC.
*
* Fallback to the non-DC driver here by default so as not to
* cause regressions.
*/
#if defined(CONFIG_DRM_AMD_DC_SI)
return amdgpu_dc > 0;
#else
return false;
#endif
case CHIP_BONAIRE:
case CHIP_KAVERI: