| Message ID | 20221024094648.145251-3-amelie.delaunay@foss.st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/2] ARM: dts: stm32: add mcp23017 pinctrl entry for stm32mp13 | expand |
Hi Amélie On 10/24/22 11:46, Amelie Delaunay wrote: > MCP23017 is an IO expander offering 16 input/output port expander with > interrupt output. > On stm32mp135f-dk, only INTA is routed (on PG12), but MCP23017 can mirror > the bank B interrupts on INTA, that's why the property microchip,irq-mirror > is used. > > Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com> > --- > arch/arm/boot/dts/stm32mp135f-dk.dts | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/arch/arm/boot/dts/stm32mp135f-dk.dts b/arch/arm/boot/dts/stm32mp135f-dk.dts > index a87ab067c955..d5fc6462ba33 100644 > --- a/arch/arm/boot/dts/stm32mp135f-dk.dts > +++ b/arch/arm/boot/dts/stm32mp135f-dk.dts > @@ -112,6 +112,20 @@ &i2c1 { > /* spare dmas for other usage */ > /delete-property/dmas; > /delete-property/dma-names; > + > + mcp23017: pinctrl@21 { > + compatible = "microchip,mcp23017"; > + reg = <0x21>; > + gpio-controller; > + #gpio-cells = <2>; > + interrupts = <12 IRQ_TYPE_LEVEL_LOW>; > + interrupt-parent = <&gpiog>; > + pinctrl-names = "default"; > + pinctrl-0 = <&mcp23017_pins_a>; > + interrupt-controller; > + #interrupt-cells = <2>; > + microchip,irq-mirror; > + }; > }; > > &i2c5 { Both patches applied on stm32-next. thanks Alex
diff --git a/arch/arm/boot/dts/stm32mp135f-dk.dts b/arch/arm/boot/dts/stm32mp135f-dk.dts index a87ab067c955..d5fc6462ba33 100644 --- a/arch/arm/boot/dts/stm32mp135f-dk.dts +++ b/arch/arm/boot/dts/stm32mp135f-dk.dts @@ -112,6 +112,20 @@ &i2c1 { /* spare dmas for other usage */ /delete-property/dmas; /delete-property/dma-names; + + mcp23017: pinctrl@21 { + compatible = "microchip,mcp23017"; + reg = <0x21>; + gpio-controller; + #gpio-cells = <2>; + interrupts = <12 IRQ_TYPE_LEVEL_LOW>; + interrupt-parent = <&gpiog>; + pinctrl-names = "default"; + pinctrl-0 = <&mcp23017_pins_a>; + interrupt-controller; + #interrupt-cells = <2>; + microchip,irq-mirror; + }; }; &i2c5 {
MCP23017 is an IO expander offering 16 input/output port expander with interrupt output. On stm32mp135f-dk, only INTA is routed (on PG12), but MCP23017 can mirror the bank B interrupts on INTA, that's why the property microchip,irq-mirror is used. Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com> --- arch/arm/boot/dts/stm32mp135f-dk.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+)