linux-kernel - [PATCH v3 3/5] ARM: dts: stm32: enable ltdc binding with ili9341 on stm32429-disco board

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Date:   Tue, 12 May 2020 15:03:35 +0800
From:   dillon.minfei@...il.com
To:     robh+dt@...nel.org, mcoquelin.stm32@...il.com,
        alexandre.torgue@...com, thierry.reding@...il.com,
        sam@...nborg.org, airlied@...ux.ie, daniel@...ll.ch,
        mturquette@...libre.com, sboyd@...nel.org
Cc:     devicetree@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-clk@...r.kernel.org,
        dillon.minfei@...il.com
Subject: [PATCH v3 3/5] ARM: dts: stm32: enable ltdc binding with ili9341 on stm32429-disco board

From: dillon min <dillon.minfei@...il.com>

Enable the ltdc & ili9341 on stm32429-disco board.

Signed-off-by: dillon min <dillon.minfei@...il.com>
---

Changes:

V3:
    change dts binding compatible to "st,sf-tc240t-9370-t"

V2:
    none

v1:
    none

arch/arm/boot/dts/stm32f429-disco.dts | 39 +++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index 30c0f67..4475e40 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -49,6 +49,8 @@
 #include "stm32f429.dtsi"
 #include "stm32f429-pinctrl.dtsi"
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "STMicroelectronics STM32F429i-DISCO board";
@@ -127,3 +129,40 @@
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&ltdc {
+	status = "okay";
+	pinctrl-0 = <&ltdc_pins_f429_disco>;
+	pinctrl-names = "default";
+
+	port {
+		ltdc_out_rgb: endpoint {
+			remote-endpoint = <&panel_in_rgb>;
+		};
+	};
+};
+
+&spi5 {
+	status = "okay";
+	pinctrl-0 = <&spi5_pins>;
+	pinctrl-names = "default";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	cs-gpios = <&gpioc 2 GPIO_ACTIVE_LOW>;
+	dmas = <&dma2 3 2 0x400 0x0>,
+	       <&dma2 4 2 0x400 0x0>;
+	dma-names = "rx", "tx";
+	display: display@0{
+		/* Connect panel-ilitek-9341 to stm32 via ltdc*/
+		compatible = "st,sf-tc240t-9370-t";
+		reg = <0>;
+		spi-3wire;
+		spi-max-frequency = <10000000>;
+		dc-gpios = <&gpiod 13 0>;
+		port {
+			panel_in_rgb: endpoint {
+			remote-endpoint = <&ltdc_out_rgb>;
+			};
+		};
+	};
+};
-- 
2.7.4