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[Public]
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
From: RyanLin <Tsung-Hua.Lin@xxxxxxx>
Sent: Thursday, January 27, 2022 10:47 PM To: Wentland, Harry <Harry.Wentland@xxxxxxx>; Li, Sun peng (Leo) <Sunpeng.Li@xxxxxxx>; Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Koenig, Christian <Christian.Koenig@xxxxxxx>; David1.Zhou@xxxxxxx <David1.Zhou@xxxxxxx>; airlied@xxxxxxxx <airlied@xxxxxxxx>; daniel@xxxxxxxx <daniel@xxxxxxxx>; seanpaul@xxxxxxxxxxxx <seanpaul@xxxxxxxxxxxx>; bas@xxxxxxxxxxxxxxxxxxx <bas@xxxxxxxxxxxxxxxxxxx>; Kazlauskas, Nicholas <Nicholas.Kazlauskas@xxxxxxx>; sashal@xxxxxxxxxx <sashal@xxxxxxxxxx>; markyacoub@xxxxxxxxxx <markyacoub@xxxxxxxxxx>; victorchengchi.lu@xxxxxxx <victorchengchi.lu@xxxxxxx>; ching-shih.li@xxxxxxxxxxxxxxxxxxxxxxxxxxx <ching-shih.li@xxxxxxxxxxxxxxxxxxxxxxxxxxx>; Siqueira, Rodrigo <Rodrigo.Siqueira@xxxxxxx>; ddavenport@xxxxxxxxxxxx <ddavenport@xxxxxxxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>; dri-devel@xxxxxxxxxxxxxxxxxxxxx <dri-devel@xxxxxxxxxxxxxxxxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx <linux-kernel@xxxxxxxxxxxxxxx>; Li, Leon <Leon.Li@xxxxxxx> Cc: Lin, Tsung-hua (Ryan) <Tsung-hua.Lin@xxxxxxx> Subject: [PATCH v2 1/28] drm/amdgpu: fix that issue that the number of the crtc of the 3250c is not correct v2:
- remove unnecessary comments and Id [Why] External displays take priority over internal display when there are fewer display controllers than displays. [How] The root cause is because of that number of the crtc is not correct. The number of the crtc on the 3250c is 3, but on the 3500c is 4. >From the source code, we can see that number of the crtc has been fixed at 4. Needs to set the num_crtc to 3 for 3250c platform. Signed-off-by: RyanLin <Tsung-Hua.Lin@xxxxxxx> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 40c91b448f7d..455a2c45e8cd 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2738,9 +2738,15 @@ static int dm_early_init(void *handle) break; #if defined(CONFIG_DRM_AMD_DC_DCN1_0) case CHIP_RAVEN: - adev->mode_info.num_crtc = 4; - adev->mode_info.num_hpd = 4; - adev->mode_info.num_dig = 4; + if (adev->rev_id >= 8) { + adev->mode_info.num_crtc = 3; + adev->mode_info.num_hpd = 3; + adev->mode_info.num_dig = 3; + } else { + adev->mode_info.num_crtc = 4; + adev->mode_info.num_hpd = 4; + adev->mode_info.num_dig = 4; + } break; #endif #if defined(CONFIG_DRM_AMD_DC_DCN2_0) -- 2.25.1 |
