[PATCH 4/6] ARM: dts: stm32: add MFX support on I2C1 on stm32746g-eval

On Thu, Feb 8, 2018 at 3:27 PM, Amelie Delaunay [off-list ref] wrote:

MFX is used as gpio expander on stm32746g-eval.

Signed-off-by: Amelie Delaunay <redacted>

(...)

+       mfx: mfx at 42 {
+               compatible = "st,mfx";
+               reg = <0x42>;
+               interrupts = <8 1>;
+               interrupt-parent = <&gpioi>;
+               interrupt-controller;
+               #interrupt-cells = <1>;
+
+               mfxgpio: mfx_gpio {
+                       compatible = "st,mfx-gpio";
+                       interrupts = <0>;
+                       interrupt-parent = <&mfx>;
+                       gpio-controller;
+                       #gpio-cells = <2>;

So I think this node should contain some pin config states
that can  be referenced by the drivers to set up push/pull
etc. Probably it can use just standard pin config properties
like sx150x.

Yours,
Linus Walleij