Thread (18 messages) 18 messages, 3 authors, 2025-08-17

Re: [PATCH v3 7/9] arm64: dts: imx943: Add display pipeline nodes

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2025-08-07 07:31:49
Also in: imx, linux-arm-kernel, lkml

On Wed, Aug 06, 2025 at 06:05:14PM +0300, Laurentiu Palcu wrote:
quoted hunk ↗ jump to hunk
Add display controller and LDB support in imx943.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
---
 arch/arm64/boot/dts/freescale/imx943.dtsi | 55 ++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/freescale/imx943.dtsi b/arch/arm64/boot/dts/freescale/imx943.dtsi
index 657c81b6016f2..70dec03c5608e 100644
--- a/arch/arm64/boot/dts/freescale/imx943.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx943.dtsi
@@ -148,7 +148,7 @@ l3_cache: l3-cache {
 		};
 	};
 
-	clock-ldb-pll-div7 {
+	clock_ldb_pll_div7: clock-ldb-pll-div7 {
 		compatible = "fixed-factor-clock";
 		#clock-cells = <0>;
 		clocks = <&scmi_clk IMX94_CLK_LDBPLL>;
@@ -174,9 +174,62 @@ dispmix_csr: syscon@4b010000 {
 		lvds_csr: syscon@4b0c0000 {
 			compatible = "nxp,imx94-lvds-csr", "syscon";
 			reg = <0x0 0x4b0c0000 0x0 0x10000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			clocks = <&scmi_clk IMX94_CLK_DISPAPB>;
 			#clock-cells = <1>;
 			power-domains = <&scmi_devpd IMX94_PD_DISPLAY>;
+
+			ldb: ldb@4 {
+				compatible = "fsl,imx94-ldb";
+				reg = <0x4 0x4>, <0x8 0x4>;
+				#address-cells = <1>;
+				#size-cells = <0>;
Why? There are no children with addressing. You never tested it because
this would easily be flagged by tools.
+				reg-names = "ldb", "lvds";
Follow DTS coding style.

Best regards,
Krzysztof
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