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authorYannic Moog <y.moog@phytec.de>2025-04-17 14:01:14 +0200
committerShawn Guo <shawnguo@kernel.org>2025-05-09 17:01:39 +0800
commit2b743164ecfe906803f5632243549f897350f51e (patch)
tree6ff0c7e026bdd70b7af9667fbd75c3ac8bf4f6ab
parent95727d056c8f5cad668c1f5711b25102b474216f (diff)
arm64: dts: add imx8mp-libra-rdk-fpsc LVDS panel overlay
The Libra board has an LVDS connector. Add an overlay for an etml1010g3dra LVDS panel supported for the phyCORE-i.MX 8M Plus that may be connected to it. Signed-off-by: Yannic Moog <y.moog@phytec.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
-rw-r--r--arch/arm64/boot/dts/freescale/Makefile2
-rw-r--r--arch/arm64/boot/dts/freescale/imx8mp-libra-rdk-fpsc-lvds-etml1010g3dra.dtso44
2 files changed, 46 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 4ec67b438e82..d63000efdf27 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -210,6 +210,8 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-kontron-dl.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-kontron-smarc-eval-carrier.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-libra-rdk-fpsc.dtb
+imx8mp-libra-rdk-fpsc-lvds-dtbs += imx8mp-libra-rdk-fpsc.dtb imx8mp-libra-rdk-fpsc-lvds-etml1010g3dra.dtbo
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-libra-rdk-fpsc-lvds.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-msc-sm2s-ep1.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-navqp.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-nitrogen-enc-carrier-board.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-libra-rdk-fpsc-lvds-etml1010g3dra.dtso b/arch/arm64/boot/dts/freescale/imx8mp-libra-rdk-fpsc-lvds-etml1010g3dra.dtso
new file mode 100644
index 000000000000..1dcf249ca90d
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-libra-rdk-fpsc-lvds-etml1010g3dra.dtso
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
+/*
+ * Copyright (C) 2025 PHYTEC Messtechnik GmbH
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clock/imx8mp-clock.h>
+
+/dts-v1/;
+/plugin/;
+
+&backlight_lvds0 {
+ brightness-levels = <0 8 16 32 64 128 255>;
+ default-brightness-level = <8>;
+ enable-gpios = <&gpio5 23 GPIO_ACTIVE_LOW>;
+ num-interpolated-steps = <2>;
+ pwms = <&pwm1 0 66667 0>;
+ status = "okay";
+};
+
+&lcdif2 {
+ status = "okay";
+};
+
+&lvds_bridge {
+ assigned-clocks = <&clk IMX8MP_CLK_MEDIA_LDB>, <&clk IMX8MP_VIDEO_PLL1>;
+ assigned-clock-parents = <&clk IMX8MP_VIDEO_PLL1_OUT>;
+ /*
+ * The LVDS panel uses 72.4 MHz pixel clock, set IMX8MP_VIDEO_PLL1 to
+ * 72.4 * 7 = 506.8 MHz so the LDB serializer and LCDIFv3 scanout
+ * engine can reach accurate pixel clock of exactly 72.4 MHz.
+ */
+ assigned-clock-rates = <0>, <506800000>;
+ status = "okay";
+};
+
+&panel0_lvds {
+ compatible = "edt,etml1010g3dra";
+ status = "okay";
+};
+
+&pwm1 {
+ status = "okay";
+};