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Commit 2652df63 authored by Pramod Kumar's avatar Pramod Kumar Committed by Linus Walleij
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dt-binding: Add ngpios property to GPIO controller node 



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: default avatarPramod Kumar <pramodku@broadcom.com>
Reviewed-by: default avatarRay Jui <rjui@broadcom.com>
Reviewed-by: default avatarScott Branden <sbranden@broadcom.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent b04a23b0

Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt

+5 −0
Original line number Diff line number Diff line
@@ -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@180a5000 {

		compatible = "brcm,cygnus-asiu-gpio";

		reg = <0x180a5000 0x668>;

		ngpios = <146>;

		#gpio-cells = <2>;

		gpio-controller;

		interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;