ARM: dts: stm32: add STMFX support on stm32746g-eval

This patch adds support for STMicroelectronics Multi-Function eXpander
(STMFX) on stm32746g-eval. It is connected on i2c1.

Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

diff --git a/arch/arm/boot/dts/stm32746g-eval.dts b/arch/arm/boot/dts/stm32746g-eval.dts
index d90b0d1..58e0457 100644 (file)
--- a/arch/arm/boot/dts/stm32746g-eval.dts
+++ b/arch/arm/boot/dts/stm32746g-eval.dts
@@ -44,6 +44,7 @@
 #include "stm32f746.dtsi"
 #include "stm32f746-pinctrl.dtsi"
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 
 / {
        model = "STMicroelectronics STM32746g-EVAL board";
@@ -115,6 +116,22 @@
        i2c-scl-rising-time-ns = <185>;
        i2c-scl-falling-time-ns = <20>;
        status = "okay";
+
+       stmfx: stmfx@42 {
+               compatible = "st,stmfx-0300";
+               reg = <0x42>;
+               interrupts = <8 IRQ_TYPE_EDGE_RISING>;
+               interrupt-parent = <&gpioi>;
+
+               stmfx_pinctrl: stmfx-pin-controller {
+                       compatible = "st,stmfx-0300-pinctrl";
+                       gpio-controller;
+                       #gpio-cells = <2>;
+                       interrupt-controller;
+                       #interrupt-cells = <2>;
+                       gpio-ranges = <&stmfx_pinctrl 0 0 24>;
+               };
+       };
 };
 
 &rtc {