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Date: Fri, 13 Oct 2017 10:07:26 +0100 From: Lee Jones <lee.jones@...aro.org> To: Baolin Wang <baolin.wang@...eadtrum.com> Cc: robh+dt@...nel.org, mark.rutland@....com, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, broonie@...nel.org, baolin.wang@...aro.org Subject: Re: [PATCH 1/2] dt-bindings: mfd: Add Spreadtrum SC27xx PMIC documentation On Wed, 11 Oct 2017, Baolin Wang wrote: > This patch adds the binding documentation for Spreadtrum SC27xx series > PMIC device. > > Signed-off-by: Baolin Wang <baolin.wang@...eadtrum.com> > --- > .../devicetree/bindings/mfd/sprd,sc27xx-pmic.txt | 23 ++++++++++++++++++++ > 1 file changed, 23 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt > > diff --git a/Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt b/Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt > new file mode 100644 > index 0000000..333c818 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt > @@ -0,0 +1,23 @@ > +Spreadtrum SC27xx Power Management Integrated Circuit (PMIC) More info please. What does the ship do and what other devices are available. > +Required properties: > +- compatible: Should be "sprd,sc2731". > +- reg: SPI chip select. Really? Not an address? What is the range? > +- spi-max-frequency: Typically set to 26000000. > +- interrupts: The interrupt line the device is connected to. > +- interrupt-controller: Marks the device node as an interrupt controller. > +- #interrupt-cells: The number of cells to describe an PMIC IRQ, should be 2. What if it's not 2? Will it still work? > +- #address-cells: Child device offset number of cells, should be 1. Same. > +- #size-cells: Child device size number of cells, should be 0. Same. > + > +Example: > +pmic: pmic@0 { What other nodes are you referencing this one from? > + compatible = "sprd,sc2731"; > + reg = <0>; > + spi-max-frequency = <26000000>; > + interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>; > + interrupt-controller; > + #interrupt-cells = <2>; > + #address-cells = <1>; > + #size-cells = <0>; > +}; -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
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