| Message ID | 20170917111445.30880-4-linus.walleij@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sun, Sep 17, 2017 at 01:14:43PM +0200, Linus Walleij wrote: > This adds DT bindings for simple mice attached to GPIO lines. > As the properties are very general and pertains to all mice I > can think of, we use very generic names for the 4-7 GPIO lines, > "up", "down" etc. > > Cc: devicetree@vger.kernel.org > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > This patch is inspired by the existance of a GPIO mouse driver > with no in-kernel users. In userspace? Doesn't seem like common h/w or that it would work well. > --- > .../devicetree/bindings/input/gpio-mouse.txt | 32 ++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > create mode 100644 Documentation/devicetree/bindings/input/gpio-mouse.txt > > diff --git a/Documentation/devicetree/bindings/input/gpio-mouse.txt b/Documentation/devicetree/bindings/input/gpio-mouse.txt > new file mode 100644 > index 000000000000..82622a439745 > --- /dev/null > +++ b/Documentation/devicetree/bindings/input/gpio-mouse.txt > @@ -0,0 +1,32 @@ > +Device-Tree bindings for GPIO attached mice > + > +This simply uses standard GPIO handles to define a simple mouse connected > +to 4-7 GPIO lines. Presumably we have to have 1 button, so 5-7 lines? > + > +Required properties: > + - compatible: must be "gpio-mouse" > + - scan-interval: The scanning interval in milliseconds Add a unit suffix. Unless we can gain something sharing this with other input bindings. > + - up-gpios: GPIO line phandle to the line indicating "up" > + - down-gpios: GPIO line phandle to the line indicating "down" > + - left-gpios: GPIO line phandle to the line indicating "left" > + - right-gpios: GPIO line phandle to the line indicating "right" > + > +Optional properties: > + - button-left-gpios: GPIO line handle to the left mouse button > + - button-middle-gpios: GPIO line handle to the middle mouse button > + - button-right-gpios: GPIO line handle to the right mouse button > +Example: > + > +#include <dt-bindings/gpio/gpio.h> > + > +gpio-mouse { > + compatible = "gpio-keys"; copy-n-paste error. > + scan-interval = <50>; > + up-gpios = <&gpio0 0 GPIO_ACTIVE_LOW>; > + down-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>; > + left-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>; > + right-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>; > + button-left-gpios = <&gpio0 4 GPIO_ACTIVE_LOW>; > + button-middle-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>; > + button-right-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>; > +}; > -- > 2.13.5 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/input/gpio-mouse.txt b/Documentation/devicetree/bindings/input/gpio-mouse.txt new file mode 100644 index 000000000000..82622a439745 --- /dev/null +++ b/Documentation/devicetree/bindings/input/gpio-mouse.txt @@ -0,0 +1,32 @@ +Device-Tree bindings for GPIO attached mice + +This simply uses standard GPIO handles to define a simple mouse connected +to 4-7 GPIO lines. + +Required properties: + - compatible: must be "gpio-mouse" + - scan-interval: The scanning interval in milliseconds + - up-gpios: GPIO line phandle to the line indicating "up" + - down-gpios: GPIO line phandle to the line indicating "down" + - left-gpios: GPIO line phandle to the line indicating "left" + - right-gpios: GPIO line phandle to the line indicating "right" + +Optional properties: + - button-left-gpios: GPIO line handle to the left mouse button + - button-middle-gpios: GPIO line handle to the middle mouse button + - button-right-gpios: GPIO line handle to the right mouse button +Example: + +#include <dt-bindings/gpio/gpio.h> + +gpio-mouse { + compatible = "gpio-keys"; + scan-interval = <50>; + up-gpios = <&gpio0 0 GPIO_ACTIVE_LOW>; + down-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>; + left-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>; + right-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>; + button-left-gpios = <&gpio0 4 GPIO_ACTIVE_LOW>; + button-middle-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>; + button-right-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>; +};
This adds DT bindings for simple mice attached to GPIO lines. As the properties are very general and pertains to all mice I can think of, we use very generic names for the 4-7 GPIO lines, "up", "down" etc. Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- This patch is inspired by the existance of a GPIO mouse driver with no in-kernel users. --- .../devicetree/bindings/input/gpio-mouse.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/gpio-mouse.txt