From mboxrd@z Thu Jan 1 00:00:00 1970 From: pramodku@broadcom.com (Pramod Kumar) Date: Thu, 19 Nov 2015 09:22:13 +0530 Subject: [PATCH v2 1/7] dt-binding: Add ngpios property to GPIO controller node In-Reply-To: <1447905139-16002-1-git-send-email-pramodku@broadcom.com> References: <1447905139-16002-1-git-send-email-pramodku@broadcom.com> Message-ID: <1447905139-16002-2-git-send-email-pramodku@broadcom.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Reviewed-by: Ray Jui Reviewed-by: Scott Branden --- 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 = ; @@ -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 = ; -- 1.9.1