From: Timur Kristóf Date: Mon, 26 Jan 2026 21:08:37 +0000 (+0100) Subject: drm/amdgpu: Use DC by default on CIK APUs X-Git-Tag: v7.1-rc1~167^2~31^2~111 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c81f35cdbab210cb8581a0502ba7355d14570abc;p=thirdparty%2Fkernel%2Flinux.git drm/amdgpu: Use DC by default on CIK APUs Now that DC supports external DP bridge encoders, it has reached feature parity with the legacy non-DC display driver on CIK APUs: Kaveri, Kabini, Mullins. Use the DC display driver by default on SI APUs, unless it is explicitly disabled using the amdgpu.dc=0 module parameter. DC brings proper support for DP/HDMI audio, DP MST, VRR, 10-bit colors, some HDR features, atomic modesetting, etc. Signed-off-by: Timur Kristóf Reviewed-by: Alex Hung Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 820a0d7a1fdeb..0acddcb047300 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4105,17 +4105,6 @@ bool amdgpu_device_asic_has_dc_support(struct pci_dev *pdev, case CHIP_VERDE: case CHIP_OLAND: return amdgpu_dc != 0 && IS_ENABLED(CONFIG_DRM_AMD_DC_SI); - case CHIP_KAVERI: - case CHIP_KABINI: - case CHIP_MULLINS: - /* - * We have systems in the wild with these ASICs that require - * TRAVIS and NUTMEG support which is not supported with DC. - * - * Fallback to the non-DC driver here by default so as not to - * cause regressions. - */ - return amdgpu_dc > 0; default: return amdgpu_dc != 0; #else