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[84.0.31.242]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-435b1c24acdsm33940275f8f.13.2026.01.26.13.08.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Jan 2026 13:08:52 -0800 (PST) From: =?UTF-8?q?Timur=20Krist=C3=B3f?= To: amd-gfx@lists.freedesktop.org, Alexander.Deucher@amd.com, Christian.Koenig@amd.com, Mario Limonciello , Ivan Lipski , Alex Hung , Prike Liang , Leo Li , Ray Wu , siqueira@igalia.com Cc: =?UTF-8?q?Timur=20Krist=C3=B3f?= Subject: [PATCH 14/14] drm/amdgpu: Use DC by default on CIK APUs Date: Mon, 26 Jan 2026 22:08:37 +0100 Message-ID: <20260126210837.21885-15-timur.kristof@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260126210837.21885-1-timur.kristof@gmail.com> References: <20260126210837.21885-1-timur.kristof@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" 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 dGPUs, 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 --- 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 362ab2b34498..fc4656a23158 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4113,17 +4113,6 @@ 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 -- 2.52.0