aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/gpio
diff options
context:
space:
mode:
authorAlexander Shiyan <shc_work@mail.ru>2014-10-03 11:32:15 +0400
committerLinus Walleij <linus.walleij@linaro.org>2014-10-21 10:48:45 +0200
commit4515b76d9b158ae89db094fe0fb277eaac88be25 (patch)
treeb360b45534cdd2a05356f7e66d26bac291b01c26 /Documentation/devicetree/bindings/gpio
parentaf0a33e26c1f16a52fb2511400387a7eab9fe4d6 (diff)
GPIO: 74xx-mmio: Add DT bindings documentation
This patch adds DT binding documentation for the 74xx-mmio GPIO driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/gpio')
-rw-r--r--Documentation/devicetree/bindings/gpio/gpio-74xx-mmio.txt30
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-74xx-mmio.txt b/Documentation/devicetree/bindings/gpio/gpio-74xx-mmio.txt
new file mode 100644
index 000000000000..7bb1a9d60133
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-74xx-mmio.txt
@@ -0,0 +1,30 @@
+* 74XX MMIO GPIO driver
+
+Required properties:
+- compatible: Should contain one of the following:
+ "ti,741g125": for 741G125 (1-bit Input),
+ "ti,741g174": for 741G74 (1-bit Output),
+ "ti,742g125": for 742G125 (2-bit Input),
+ "ti,7474" : for 7474 (2-bit Output),
+ "ti,74125" : for 74125 (4-bit Input),
+ "ti,74175" : for 74175 (4-bit Output),
+ "ti,74365" : for 74365 (6-bit Input),
+ "ti,74174" : for 74174 (6-bit Output),
+ "ti,74244" : for 74244 (8-bit Input),
+ "ti,74273" : for 74273 (8-bit Output),
+ "ti,741624" : for 741624 (16-bit Input),
+ "ti,7416374": for 7416374 (16-bit Output).
+- reg: Physical base address and length where IC resides.
+- gpio-controller: Marks the device node as a gpio controller.
+- #gpio-cells: Should be two. The first cell is the pin number and
+ the second cell is used to specify the GPIO polarity:
+ 0 = Active High,
+ 1 = Active Low.
+
+Example:
+ ctrl: gpio@30008004 {
+ compatible = "ti,74174";
+ reg = <0x30008004 0x1>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };

Privacy Policy