| Message ID | 1518100057-23234-5-git-send-email-amelie.delaunay@st.com |
|---|---|
| State | New |
| Headers | show |
| Series | Introduce STMicroelectronics MultiFunction eXpander | expand |
On Thu, Feb 8, 2018 at 3:27 PM, Amelie Delaunay <amelie.delaunay@st.com> wrote: > MFX is used as gpio expander on stm32746g-eval. > > Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> (...) > + mfx: mfx@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 -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 02/22/2018 02:54 PM, Linus Walleij wrote: > On Thu, Feb 8, 2018 at 3:27 PM, Amelie Delaunay <amelie.delaunay@st.com> wrote: > >> MFX is used as gpio expander on stm32746g-eval. >> >> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> > > (...) >> + mfx: mfx@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. > I will check that point. Regards, Amelie > Yours, > Linus Walleij >
diff --git a/arch/arm/boot/dts/stm32746g-eval.dts b/arch/arm/boot/dts/stm32746g-eval.dts index e74ae59..99739f7 100644 --- a/arch/arm/boot/dts/stm32746g-eval.dts +++ b/arch/arm/boot/dts/stm32746g-eval.dts @@ -128,6 +128,23 @@ i2c-scl-rising-time-ns = <185>; i2c-scl-falling-time-ns = <20>; status = "okay"; + + mfx: mfx@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>; + }; + }; }; &mac {
MFX is used as gpio expander on stm32746g-eval. Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> --- arch/arm/boot/dts/stm32746g-eval.dts | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)