Add ngpios property to the gpio controller's DT node so that controller
driver extracts total number of gpio lines present in controller
from DT and removes dependency on driver.
Signed-off-by: Pramod Kumar <pramodku@xxxxxxxxxxxx>
Reviewed-by: Ray Jui <rjui@xxxxxxxxxxxx>
Reviewed-by: Scott Branden <sbranden@xxxxxxxxxxxx>
---
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 f92b833..655a8d7 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 GPIOs the controller provides
+
- #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>;
--
1.9.1
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