From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baolin Wang Subject: [PATCH 1/2] dt-bindings: gpio: Add Spreadtrum GPIO controller documentation Date: Tue, 30 Jan 2018 20:07:42 +0800 Message-ID: <2834309f69a1ec37b84a33f153a3d0b90336bcc6.1517313987.git.baolin.wang@linaro.org> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-gpio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, baolin.wang-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org List-Id: linux-gpio@vger.kernel.org This patch adds the device tree bindings for the Spreadtrum GPIO controller. The gpios will be supported by the GPIO generic library. Signed-off-by: Baolin Wang --- .../devicetree/bindings/gpio/gpio-sprd.txt | 28 ++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-sprd.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-sprd.txt b/Documentation/devicetree/bindings/gpio/gpio-sprd.txt new file mode 100644 index 0000000..eca97d4 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-sprd.txt @@ -0,0 +1,28 @@ +Spreadtrum GPIO controller bindings + +The controller's registers are organized as sets of sixteen 16-bit +registers with each set controlling a bank of up to 16 pins. A single +interrupt is shared for all of the banks handled by the controller. + +Required properties: +- compatible: Should be "sprd,sc9860-gpio". +- reg: Define the base and range of the I/O address space containing +the GPIO controller registers. +- gpio-controller: Marks the device node as a GPIO controller. +- #gpio-cells: Should be <2>. The first cell is the gpio number and +the second cell is used to specify optional parameters. +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells: Should be <2>. Specifies the number of cells needed +to encode interrupt source. +- interrupts: Should be the port interrupt shared by all the gpios. + +Example: + ap_gpio: gpio@40280000 { + compatible = "sprd,sc9860-gpio"; + reg = <0 0x40280000 0 0x1000>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + interrupts = ; + }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html