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authorPramod Kumar <pramodku@broadcom.com>2015-11-19 09:22:13 +0530
committerLinus Walleij <linus.walleij@linaro.org>2015-11-30 09:33:33 +0100
commit2652df631cbe9bd4bb0f3c9dcc284e0f099dbbf1 (patch)
tree06e60671e717264153e974da1fc94fecdaec3f11 /Documentation/devicetree/bindings/pinctrl
parentb04a23b05609b35365127ad8906c55866eb47fe7 (diff)
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: Pramod Kumar <pramodku@broadcom.com> Reviewed-by: Ray Jui <rjui@broadcom.com> Reviewed-by: Scott Branden <sbranden@broadcom.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/pinctrl')
-rw-r--r--Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
index 16589fb6f420..8b1e5d1e8a03 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@180a5000 {
compatible = "brcm,cygnus-asiu-gpio";
reg = <0x180a5000 0x668>;
+ ngpios = <146>;
#gpio-cells = <2>;
gpio-controller;
interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;