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[46.122.100.117]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49949fc2da2sm3363735e9.3.2026.08.03.09.11.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Aug 2026 09:11:24 -0700 (PDT) From: Jernej Skrabec To: wens@kernel.org Cc: maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, samuel@sholland.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Jernej Skrabec Subject: [PATCH 05/13] drm/sun4i: tcon: Set output mux for DSI and LVDS Date: Mon, 3 Aug 2026 18:10:43 +0200 Message-ID: <7e9dad9eed2e91a79c4e1202caa8fed7c2427531.1785772659.git.jernej.skrabec@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260803_091127_303105_72962492 X-CRM114-Status: GOOD ( 10.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DSI and LVDS skip output mux setup, so TCON TOP cannot route the selected mixer. Configure them like other channel 0 outputs. In practice this matters for D1, where channel 0 TCONs are fed through TCON TOP. The remaining set_mux implementations only handle TMDS and return an error for other encoder types, as before. Fixes: b9b52d2f4aaf ("drm/sun4i: Add support for D1 TCONs") Signed-off-by: Jernej Skrabec --- drivers/gpu/drm/sun4i/sun4i_tcon.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c index 960e83c8291d..ea7c90fef316 100644 --- a/drivers/gpu/drm/sun4i/sun4i_tcon.c +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c @@ -717,9 +717,11 @@ void sun4i_tcon_mode_set(struct sun4i_tcon *tcon, case DRM_MODE_ENCODER_DSI: /* DSI is tied to special case of CPU interface */ sun4i_tcon0_mode_set_cpu(tcon, encoder, mode); + sun4i_tcon_set_mux(tcon, 0, encoder); break; case DRM_MODE_ENCODER_LVDS: sun4i_tcon0_mode_set_lvds(tcon, encoder, mode); + sun4i_tcon_set_mux(tcon, 0, encoder); break; case DRM_MODE_ENCODER_NONE: sun4i_tcon0_mode_set_rgb(tcon, encoder, mode); -- 2.43.0