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-rw-r--r--Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
index 3fac0a061bcc..3cab7336a326 100644
--- a/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
+++ b/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
@@ -5,6 +5,10 @@ controller, and pinmux/control device.
Required properties:
- compatible: "brcm,bcm2835-gpio"
+- compatible: should be one of:
+ "brcm,bcm2835-gpio" - BCM2835 compatible pinctrl
+ "brcm,bcm7211-gpio" - BCM7211 compatible pinctrl
+ "brcm,bcm2711-gpio" - BCM2711 compatible pinctrl
- reg: Should contain the physical address of the GPIO module's registers.
- gpio-controller: Marks the device node as a GPIO controller.
- #gpio-cells : Should be two. The first cell is the pin number and the