| Message ID | 1538048404-9041-2-git-send-email-amelie.delaunay@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Introduce STMFX I2C Multi-Function eXpander | expand |
On Thu, 27 Sep 2018, Amelie Delaunay wrote: > This patch adds documentation of device tree bindings for the > STMicroelectronics Multi-Function eXpander (STMFX) MFD core. > > Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> > Reviewed-by: Linus Walleij <linus.walleij@linaro.org> > --- > Documentation/devicetree/bindings/mfd/stmfx.txt | 28 +++++++++++++++++++++++++ > 1 file changed, 28 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/stmfx.txt For my own reference: Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
On Thu, 27 Sep 2018 13:39:58 +0200, Amelie Delaunay wrote: > This patch adds documentation of device tree bindings for the > STMicroelectronics Multi-Function eXpander (STMFX) MFD core. > > Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> > Reviewed-by: Linus Walleij <linus.walleij@linaro.org> > --- > Documentation/devicetree/bindings/mfd/stmfx.txt | 28 +++++++++++++++++++++++++ > 1 file changed, 28 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/stmfx.txt > Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/mfd/stmfx.txt b/Documentation/devicetree/bindings/mfd/stmfx.txt new file mode 100644 index 0000000..f0c2f7f --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/stmfx.txt @@ -0,0 +1,28 @@ +STMicroelectonics Multi-Function eXpander (STMFX) Core bindings + +ST Multi-Function eXpander (STMFX) is a slave controller using I2C for +communication with the main MCU. Its main features are GPIO expansion, main +MCU IDD measurement (IDD is the amount of current that flows through VDD) and +resistive touchscreen controller. + +Required properties: +- compatible: should be "st,stmfx-0300". +- reg: I2C slave address of the device. +- interrupts: interrupt specifier triggered by MFX_IRQ_OUT signal. + Please refer to ../interrupt-controller/interrupt.txt + +Optional properties: +- drive-open-drain: configure MFX_IRQ_OUT as open drain. +- vdd-supply: phandle of the regulator supplying STMFX. + +Example: + + stmfx: stmfx@42 { + compatible = "st,stmfx-0300"; + reg = <0x42>; + interrupts = <8 IRQ_TYPE_EDGE_RISING>; + interrupt-parent = <&gpioi>; + vdd-supply = <&v3v3>; + }; + +Please refer to ../pinctrl/pinctrl-stmfx.txt for STMFX GPIO expander function bindings.