From 2da2e952a785a49c5b3cc624bf00ab6c2d7607a5 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Timur=20Krist=C3=B3f?= Date: Sun, 9 Nov 2025 19:26:40 +0100 Subject: [PATCH] drm/amdgpu: Use DC by default on SI dGPUs MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Now that DC supports analog connectors, it has reached feature parity with the legacy non-DC display driver on SI dGPUs. Use the DC display driver by default on SI dGPUs, unless it is explicitly disabled using the amdgpu.dc=0 module parameter. DC brings proper support for DP/HDMI audio, DP MST, 10-bit colors, some HDR features, atomic modesetting, etc. Also clarify the comment about what is missing to have full DC support for CIK APUs. Signed-off-by: Timur Kristóf Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 86255c13fbb79..bfbf874a10008 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4249,24 +4249,13 @@ bool amdgpu_device_asic_has_dc_support(struct pci_dev *pdev, 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 + 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 - * VGA support which is not supported with DC. + * 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. -- 2.47.3