[PATCH 3/6] arm64: dts: freescale: imx8mp-verdin: Add Mezzanine with Toradex Display 10.1" LVDS

[Leonardo Costa]

From: Leonardo Costa <leonardo.costa at toradex.com>

Add a device tree overlay enabling the Toradex Capacitive Touch Display
10.1" LVDS on the Verdin Development Board with Verdin iMX8M Plus
Mezzanine expansion board. The panel connects via the i.MX8M Plus LCDIF
on the Mezzanine LVDS interface (J10). The panel is a LogicTechno
LT170410-2WHC 10.1" WXGA IPS LCD and the touch input is provided by an
Atmel MaxTouch capacitive touch controller.

Link: https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds
Link: https://developer.toradex.com/hardware/verdin-som-family/add-ons/verdin-imx8m-plus-mezzanine
Signed-off-by: Leonardo Costa <leonardo.costa at toradex.com>
---
 arch/arm64/boot/dts/freescale/Makefile        |  5 ++
 ...mezzanine-panel-cap-touch-10inch-lvds.dtso | 71 +++++++++++++++++++
 2 files changed, 76 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-verdin-dev-mezzanine-panel-cap-touch-10inch-lvds.dtso

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index c55269a0532a..37ae0954d02f 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -508,6 +508,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw73xx-2x.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw74xx.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw75xx-2x.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw82xx-2x.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-dev-mezzanine-panel-cap-touch-10inch-lvds.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-nonwifi-dahlia.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-nonwifi-dev.dtb
@@ -519,6 +520,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-panel-cap-touch-10inch-lvds.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-dahlia.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-dev.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-dev-mezzanine-panel-cap-touch-10inch-lvds.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-ivy.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-mallow.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-mallow-panel-cap-touch-10inch-lvds.dtb
@@ -528,6 +530,9 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-zinnia.dtb
 imx8mp-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := \
 	imx8mp-verdin-wifi-dev.dtb \
 	imx8mp-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo
+imx8mp-verdin-wifi-dev-mezzanine-panel-cap-touch-10inch-lvds-dtbs := \
+	imx8mp-verdin-wifi-dev.dtb \
+	imx8mp-verdin-dev-mezzanine-panel-cap-touch-10inch-lvds.dtbo
 imx8mp-verdin-wifi-mallow-panel-cap-touch-10inch-lvds-dtbs := \
 	imx8mp-verdin-wifi-mallow.dtb \
 	imx8mp-verdin-panel-cap-touch-10inch-lvds.dtbo
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dev-mezzanine-panel-cap-touch-10inch-lvds.dtso b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dev-mezzanine-panel-cap-touch-10inch-lvds.dtso
new file mode 100644
index 000000000000..ce426288081c
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dev-mezzanine-panel-cap-touch-10inch-lvds.dtso
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex Capacitive Touch Display 10.1" LVDS on the Verdin iMX8M Plus
+ * Mezzanine LVDS interface (J10), used with the Verdin Development Board.
+ *
+ * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds
+ * https://www.toradex.com/accessories/capacitive-touch-display-10.1-inch-lvds
+ * https://developer.toradex.com/hardware/verdin-som-family/add-ons/verdin-imx8m-plus-mezzanine
+ * https://www.toradex.com/accessories/verdin-imx8m-plus-mezzanine
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/clock/imx8mp-clock.h>
+
+#include "imx8mp-pinfunc.h"
+
+&{/} {
+	panel-lvds-native {
+		compatible = "logictechno,lt170410-2whc";
+		backlight = <&backlight_mezzanine>;
+		power-supply = <&reg_3p3v>;
+
+		port {
+			panel_lvds_native_in: endpoint {
+				remote-endpoint = <&ldb_lvds_ch0>;
+			};
+		};
+	};
+};
+
+&atmel_mxt_ts_mezzanine {
+	status = "okay";
+};
+
+&backlight_mezzanine {
+	status = "okay";
+};
+
+&lcdif2 {
+	status = "okay";
+};
+
+&lvds_bridge {
+	assigned-clocks = <&clk IMX8MP_CLK_MEDIA_LDB>,
+			  <&clk IMX8MP_VIDEO_PLL1>;
+	/*
+	 * This display uses 71.1 MHz pixel clock, so IMX8MP_VIDEO_PLL1 needs
+	 * to be 7 times 71.1MHz, or 497.7 MHz as the internal divider will
+	 * always divide the output LVDS clock by 7.
+	 */
+	assigned-clock-rates = <0>, <497700000>;
+
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port at 1 {
+			reg = <1>;
+
+			ldb_lvds_ch0: endpoint {
+				remote-endpoint = <&panel_lvds_native_in>;
+			};
+		};
+	};
+};