[PATCH v2 1/7] dt-binding: Add ngpios property to GPIO controller node
From: robh@kernel.org (Rob Herring)
Date: 2015-11-20 15:33:24
Also in:
linux-devicetree, linux-gpio, lkml
On Thu, Nov 19, 2015 at 09:22:13AM +0530, Pramod Kumar wrote:
Add ngpios property to the gpio controller's DT node so that controller driver extracts total number of in-use gpio lines from DT and removes dependency on driver. Signed-off-by: Pramod Kumar <redacted> Reviewed-by: Ray Jui <rjui@broadcom.com> Reviewed-by: Scott Branden <sbranden@broadcom.com>
Acked-by: Rob Herring <robh@kernel.org>
quoted hunk ↗ jump to hunk
--- Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt | 5 +++++ 1 file changed, 5 insertions(+)diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt index 16589fb6..8b1e5d1 100644 --- a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt +++ b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt@@ -10,6 +10,9 @@ Required properties: Define the base and range of the I/O address space that contains the Cygnus GPIO/PINCONF controller registers +- ngpios: + Total number of in-use slots in GPIO controller + - #gpio-cells: Must be two. The first cell is the GPIO pin number (within the controller's pin space) and the second cell is used for the following:@@ -57,6 +60,7 @@ Example: compatible = "brcm,cygnus-ccm-gpio"; reg = <0x1800a000 0x50>, <0x0301d164 0x20>; + ngpios = <24>; #gpio-cells = <2>; gpio-controller; interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;@@ -78,6 +82,7 @@ Example: gpio_asiu: gpio at 180a5000 { compatible = "brcm,cygnus-asiu-gpio"; reg = <0x180a5000 0x668>; + ngpios = <146>; #gpio-cells = <2>; gpio-controller; interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;-- 1.9.1