[PATCH 2/2] Documentation: gpio: Update description for X-Gene standby GPIO controller DTS binding
From: Y Vo <hidden>
Date: 2015-09-11 09:22:12
Also in:
linux-devicetree, linux-gpio
Subsystem:
gpio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Linus Walleij, Bartosz Golaszewski, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Signed-off-by: Y Vo <redacted> --- .../devicetree/bindings/gpio/gpio-xgene-sb.txt | 26 ++++++++++++++----- 1 files changed, 19 insertions(+), 7 deletions(-)
diff --git a/Documentation/devicetree/bindings/gpio/gpio-xgene-sb.txt b/Documentation/devicetree/bindings/gpio/gpio-xgene-sb.txt
index dae1300..bee1347 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-xgene-sb.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-xgene-sb.txt@@ -3,8 +3,11 @@ APM X-Gene Standby GPIO controller bindings This is a gpio controller in the standby domain. There are 20 GPIO pins from 0..21. There is no GPIO_DS14 or GPIO_DS15, -only GPIO_DS8..GPIO_DS13 support interrupts. The IRQ mapping +only GPIO_DS8..GPIO_DS13 support external interrupts. The IRQ mapping is currently 1-to-1 on interrupts 0x28 thru 0x2d. +GPIO pins from GPIO_DS8 to GPIO_DS13 are configured as external interrupt +by default. If one wish not to use any of these pins as external interrupts, +the corresponding interrupt resource for those pins should be removed. Required properties: - compatible: "apm,xgene-gpio-sb" for the X-Gene Standby GPIO controller
@@ -23,10 +26,19 @@ Example: reg = <0x0 0x17001000 0x0 0x400>; #gpio-cells = <2>; gpio-controller; - interrupts = <0x0 0x28 0x1>, - <0x0 0x29 0x1>, - <0x0 0x2a 0x1>, - <0x0 0x2b 0x1>, - <0x0 0x2c 0x1>, - <0x0 0x2d 0x1>; + interrupts = <0x0 0x28 0x1>, /* GPIO_DS8 */ + <0x0 0x29 0x1>, /* GPIO_DS9 */ + <0x0 0x2a 0x1>, /* GPIO_DS10 */ + <0x0 0x2b 0x1>, /* GPIO_DS11 */ + <0x0 0x2c 0x1>, /* GPIO_DS12 */ + <0x0 0x2d 0x1>; /* GPIO_DS13 */ }; + +/* Board-specific: exclude GPIO_DS8 to leave it as GPIO */ +&sbgpio { + interrupts = <0x0 0x29 0x1>, /* GPIO_DS9 */ + <0x0 0x2a 0x1>, /* GPIO_DS10 */ + <0x0 0x2b 0x1>, /* GPIO_DS11 */ + <0x0 0x2c 0x1>, /* GPIO_DS12 */ + <0x0 0x2d 0x1>; /* GPIO_DS13 */ +}
--
1.7.1