Add a DT overlay for the Variscite i.MX8MP DT8MCustomBoard that models
the GKTW70SDAE4SE LVDS panel found in the evaluation kit.
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/freescale/Makefile | 2 +
.../imx8mp-var-dart-panel-gktw70sdae4se.dtso | 99 +++++++++++++++++++
2 files changed, 101 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-var-dart-panel-gktw70sdae4se.dtso
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 4e6cfcd22e86..23a0b631d0f6 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -128,6 +128,7 @@ imx8mm-venice-gw73xx-0x-imx219-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice
imx8mm-venice-gw73xx-0x-rs232-rts-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-gw73xx-0x-rs232-rts.dtbo
imx8mm-venice-gw73xx-0x-rs422-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-gw73xx-0x-rs422.dtbo
imx8mm-venice-gw73xx-0x-rs485-dtbs := imx8mm-venice-gw73xx-0x.dtb imx8mm-venice-gw73xx-0x-rs485.dtbo
+imx8mp-var-dart-panel-gktw70sdae4se-dtbs := imx8mp-var-dart-dt8mcustomboard-v2.dtb imx8mp-var-dart-panel-gktw70sdae4se.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-imx219.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x-rs232-rts.dtb
@@ -137,6 +138,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-imx219.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-rs232-rts.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-rs422.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x-rs485.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-var-dart-panel-gktw70sdae4se.dtb
dtb-$(CONFIG_ARCH_S32) += s32g274a-evb.dtb
dtb-$(CONFIG_ARCH_S32) += s32g274a-rdb2.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-var-dart-panel-gktw70sdae4se.dtso b/arch/arm64/boot/dts/freescale/imx8mp-var-dart-panel-gktw70sdae4se.dtso
new file mode 100644
index 000000000000..d5f61e157bc2
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-var-dart-panel-gktw70sdae4se.dtso
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2020-2021 Variscite Ltd.
+ * Copyright 2023 Ideas on Board Oy
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "imx8mp-pinfunc.h"
+
+&{/} {
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm1 0 1000000 0>;
+ };
+
+ panel {
+ compatible = "sgd,gktw70sdae4se", "panel-lvds";
+ backlight = <&backlight>;
+ width-mm = <153>;
+ height-mm = <87>;
+ label = "gktw70sdae4se";
+ data-mapping = "jeida-24";
+
+ panel-timing {
+ clock-frequency = <29232000>;
+ hactive = <800>;
+ vactive = <480>;
+ hback-porch = <40>;
+ hfront-porch = <40>;
+ vback-porch = <29>;
+ vfront-porch = <13>;
+ hsync-len = <48>;
+ vsync-len = <3>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ de-active = <1>;
+ };
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&ldb_lvds_ch0>;
+ };
+ };
+ };
+};
+
+&i2c2 {
+ touch@38 {
+ compatible = "edt,edt-ft5206";
+ reg = <0x38>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_captouch>;
+
+ reset-gpios = <&gpio_exp_2 4 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <14 IRQ_TYPE_EDGE_FALLING>;
+ wakeup-source;
+
+ touchscreen-size-x = <800>;
+ touchscreen-size-y = <480>;
+ touchscreen-inverted-x;
+ touchscreen-inverted-y;
+ };
+};
+
+&lcdif2 {
+ /*
+ * The pixel clock should be configured by the lcdif driver, but the
+ * clock frequency propagation in the clock framework stops at the PIX2
+ * clock and doesn't reach the VIDEO_PLL1 clock. As a workaround, set
+ * the VIDEO_PLL1 rate manually.
+ *
+ * For a 60Hz refresh rate, the panel requires a pixel clock of 29.232
+ * MHz. The LVDS clock frequency is 7 times higher, or 204.624 MHz.
+ */
+ assigned-clock-rates = <0>, <204624000>;
+ status = "okay";
+};
+
+&ldb_lvds_ch0 {
+ remote-endpoint = <&panel_in>;
+};
+
+&lvds_bridge {
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl_captouch: captouchgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_GPIO1_IO14__GPIO1_IO14 0x16
+ >;
+ };
+};
--
Regards,
Laurent Pinchart
