| Message ID | 1493050124-5970-14-git-send-email-rf@opensource.wolfsonmicro.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Apr 24, 2017 at 6:08 PM, Richard Fitzgerald <rf@opensource.wolfsonmicro.com> wrote: > The Cirrus Logic Madera codecs have a range of GPIO pins that can be > used as single-bit logic input or output. These are presented as a > standard GPIO binding. > > The second cell in a GPIO binding is currently reserved for future use > as chip-specific flags. > > Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> > --- > Changes from V1: > - moved out of main gpio patch into a separate patch > - added gpio-line-names as an optional property Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Yours, Linus Walleij
On Mon, Apr 24, 2017 at 05:08:39PM +0100, Richard Fitzgerald wrote: > The Cirrus Logic Madera codecs have a range of GPIO pins that can be > used as single-bit logic input or output. These are presented as a > standard GPIO binding. > > The second cell in a GPIO binding is currently reserved for future use > as chip-specific flags. > > Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> > --- > Changes from V1: > - moved out of main gpio patch into a separate patch > - added gpio-line-names as an optional property > > .../devicetree/bindings/gpio/gpio-madera.txt | 27 ++++++++++++++++++++++ > 1 file changed, 27 insertions(+) > create mode 100644 Documentation/devicetree/bindings/gpio/gpio-madera.txt Acked-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/gpio/gpio-madera.txt b/Documentation/devicetree/bindings/gpio/gpio-madera.txt new file mode 100644 index 0000000..6254f5b --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-madera.txt @@ -0,0 +1,27 @@ +Cirrus Logic Madera class audio codecs gpio driver + +This is a subnode of the parent mfd node. + +See also the core bindings for the parent MFD driver: +See Documentation/devicetree/bindings/mfd/madera.txt + +Required properties: + - compatible : must be "cirrus,madera-gpio" + - gpio-controller : Indicates this device is a GPIO controller. + - #gpio-cells : Must be 2. The first cell is the pin number. The second cell + is reserved for future use and must be zero + +Optional properties: + - gpio-line-names : as described in bindings/gpio/gpio.txt + +Example: + +cs47l85@0 { + compatible = "cirrus,cs47l85"; + + gpio { + compatible = "cirrus,madera-gpio"; + gpio-controller; + #gpio-cells = <2>; + } +};
The Cirrus Logic Madera codecs have a range of GPIO pins that can be used as single-bit logic input or output. These are presented as a standard GPIO binding. The second cell in a GPIO binding is currently reserved for future use as chip-specific flags. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> --- Changes from V1: - moved out of main gpio patch into a separate patch - added gpio-line-names as an optional property .../devicetree/bindings/gpio/gpio-madera.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-madera.txt