ARM: dts: stm32: add touchscreen on stm32f746-disco board

commit f0215440069c4fb12958d2d321e05faa2708a11d Linux upstream.

The patch adds support for touchscreen on the stm32f746-disco board.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

diff --git a/arch/arm/dts/stm32f746-disco.dts b/arch/arm/dts/stm32f746-disco.dts
index 1ed58f2361491299ed0afc3189a0017514b86b45..9541f449fd0edfcaaad84a70196eb0f0c560824f 100644 (file)
--- a/arch/arm/dts/stm32f746-disco.dts
+++ b/arch/arm/dts/stm32f746-disco.dts
@@ -7,8 +7,9 @@
 /dts-v1/;
 #include "stm32f746.dtsi"
 #include "stm32f746-pinctrl.dtsi"
-#include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 
 / {
        model = "STMicroelectronics STM32F746-DISCO board";
@@ -63,6 +64,22 @@
        status = "okay";
 };
 
+&i2c3 {
+       pinctrl-0 = <&i2c3_pins_a>;
+       pinctrl-names = "default";
+       clock-frequency = <400000>;
+       status = "okay";
+
+       touchscreen@38 {
+               compatible = "edt,edt-ft5306";
+               reg = <0x38>;
+               interrupt-parent = <&gpioi>;
+               interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+               touchscreen-size-x = <480>;
+               touchscreen-size-y = <272>;
+       };
+};
+
 &sdio1 {
        status = "okay";
        vmmc-supply = <&mmc_vcard>;