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ARM: dts: Add STMFX gpio expander support for stm32mp157c-ev1

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Adds alias to set the pincontrol seq id.
For STMFX gpio expander, force sequence number after
the last bank (GPIOZ) to avoid conflict between STM32MP and STMFX
gpio bank sequence number.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
This commit is contained in:
Patrick Delaunay 2019-04-12 14:38:28 +02:00
parent 8b4afe8070
commit 1258e4667a
3 changed files with 22 additions and 0 deletions
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2
arch/arm/dts/stm32mp157-u-boot.dtsi
View File

@ -17,6 +17,8 @@
gpio9 = &gpioj;
gpio10 = &gpiok;
gpio25 = &gpioz;
pinctrl0 = &pinctrl;
pinctrl1 = &pinctrl_z;
};
config {

2
arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi
View File

@ -7,8 +7,10 @@
/ {
aliases {
gpio26 = &stmfx_pinctrl;
i2c1 = &i2c2;
i2c4 = &i2c5;
pinctrl2 = &stmfx_pinctrl;
spi0 = &qspi;
};
};

18
arch/arm/dts/stm32mp157c-ev1.dts
View File

@ -98,6 +98,24 @@
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>;
vdd-supply = <&v3v3>;
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>;
status = "disabled";
};
};
};
&i2c5 {