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Fri, 13 Mar 2026 08:10:31 +0100 Received: from localhost ([127.0.0.1]) by sslproxy07.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1w0wfH-000Eou-1L; Fri, 13 Mar 2026 08:10:31 +0100 From: Alexander Stein To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Alexander Stein , linux@ew.tq-group.com, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/3] arm64: dts: imx8mn-tqma8mqnl-mba8mx: LVDS overlay: LVDS overlay: Reduce DSI burst clock to 600Mhz Date: Fri, 13 Mar 2026 08:10:25 +0100 Message-ID: <20260313071027.587992-3-alexander.stein@ew.tq-group.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260313071027.587992-1-alexander.stein@ew.tq-group.com> References: <20260313071027.587992-1-alexander.stein@ew.tq-group.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Virus-Scanned: Clear (ClamAV 1.4.3/27938/Thu Mar 12 07:24:01 2026) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260313_071033_284222_F09918F1 X-CRM114-Status: GOOD ( 10.35 ) 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 The DSI burst clock frequency is too high resulting in flickering. Reduce the frequency. While at it, remove the burst clock from board configuration as it is display specific. Signed-off-by: Alexander Stein --- Changes in v2: * Improve commit message and fix typo .../dts/freescale/imx8mn-tqma8mqnl-mba8mx-lvds-tm070jvhg33.dtso | 1 + arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx.dts | 1 - 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-lvds-tm070jvhg33.dtso b/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-lvds-tm070jvhg33.dtso index 0f4cf1855bf3a..046399a455ba1 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-lvds-tm070jvhg33.dtso +++ b/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx-lvds-tm070jvhg33.dtso @@ -32,6 +32,7 @@ &lcdif { }; &mipi_dsi { + samsung,burst-clock-frequency = <600000000>; status = "okay"; }; diff --git a/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx.dts b/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx.dts index 664f4a6950a82..01d565cdbfea0 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx.dts +++ b/arch/arm64/boot/dts/freescale/imx8mn-tqma8mqnl-mba8mx.dts @@ -65,7 +65,6 @@ expander2: gpio@27 { }; &mipi_dsi { - samsung,burst-clock-frequency = <891000000>; samsung,esc-clock-frequency = <20000000>; }; -- 2.43.0