From c81f35cdbab210cb8581a0502ba7355d14570abc Mon Sep 17 00:00:00 2001 From: =?utf8?q?Timur=20Krist=C3=B3f?= Date: Mon, 26 Jan 2026 22:08:37 +0100 Subject: [PATCH] drm/amdgpu: Use DC by default on CIK APUs MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 11 ----------- 1 file changed, 11 deletions(-) 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 -- 2.47.3