Re: [PATCH 08/10] gpio: ptxpmb-cpld: Document bindings of PTXPMB's CPLD GPIO
From: Rob Herring <robh@kernel.org>
Date: 2016-10-10 18:09:53
Also in:
linux-gpio, linux-i2c, linux-watchdog, lkml
On Fri, Oct 07, 2016 at 06:17:29PM +0300, Pantelis Antoniou wrote:
quoted hunk ↗ jump to hunk
From: Georgi Vlaev <redacted> Add device tree bindings document for the GPIO driver of Juniper's PTXPMB/NGPMB CPLD. Signed-off-by: Georgi Vlaev <redacted> [Ported from Juniper kernel] Signed-off-by: Pantelis Antoniou <redacted> --- .../bindings/gpio/jnx,gpio-ptxpmb-cpld.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/jnx,gpio-ptxpmb-cpld.txtdiff --git a/Documentation/devicetree/bindings/gpio/jnx,gpio-ptxpmb-cpld.txt b/Documentation/devicetree/bindings/gpio/jnx,gpio-ptxpmb-cpld.txt new file mode 100644 index 0000000..1122021 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/jnx,gpio-ptxpmb-cpld.txt@@ -0,0 +1,30 @@ +Juniper PTXPMB CPLD GPIO block + +Required properties: + +- compatible: + Must be "jnx,gpio-ptxpmb-cpld" + +- #gpio-cells: + Should be <2>. The first cell is the pin number (within the controller's + pin space), and the second is used for the following flags: + bit[0]: direction (0 = out, 1 = in) + bit[1]: init high + bit[2]: active low
Use and/or add standard flags.
+ +- gpio-controller: + Specifies that the node is a GPIO controller. + +Optional properties: + +- reg: + Address and length of the register set for the device. Usually supplied by + the parent MFD driver
Make this mandatory.
+
+Example:
+
+gpio_cpld: cpld_gpio {
+ compatible = "jnx,gpio-ptxpmb-cpld";
+ #gpio-cells = <2>;
+ gpio-controller;
+};
--
1.9.1