The patch adds keystone-k2g compatible, specific properties and
an example.
Signed-off-by: Keerthy <j-keerthy@xxxxxx>
---
Changes in v3:
* Added details about family of SoCs corresponding to compatibles.
.../devicetree/bindings/gpio/gpio-davinci.txt | 40 +++++++++++++++++++++-
1 file changed, 39 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/gpio/gpio-davinci.txt b/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
index 5079ba7..fb9efee 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-davinci.txt
@@ -1,7 +1,10 @@
Davinci/Keystone GPIO controller bindings
Required Properties:
-- compatible: should be "ti,dm6441-gpio", "ti,keystone-gpio"
+- compatible: should be "ti,dm6441-gpio": for Davinci da850 SoCs
+ "ti,keystone-gpio": for Keystone 2 66AK2H/K, 66AK2L,
+ 66AK2E SoCs
+ "ti,keystone-k2g-gpio", "ti,keystone-gpio": for 66AK2G
- reg: Physical base address of the controller and the size of memory mapped
registers.
@@ -26,6 +29,17 @@ The GPIO controller also acts as an interrupt controller. It uses the default
two cells specifier as described in Documentation/devicetree/bindings/
interrupt-controller/interrupts.txt.
+Required Properties specific to keystone-k2g
+
+- clocks: Should contain devices input clock. The first parameter
+ is a handle to k2g_clks. The second parameter is the
+ device ID and the third parameter is the clock ID. One can
+ refer: http://processors.wiki.ti.com/index.php/TISCI#66AK2G02_Data
+
+ Example: <&k2g_clks 0x001c 0x0>;
+
+- clock-names: The driver expects the clock name to be "gpio";
+
Example:
gpio: gpio@1e26000 {
@@ -60,3 +74,27 @@ leds {
...
};
};
+
+Example for keystone-k2g:
+
+gpio0: gpio@2603000 {
+ compatible = "ti,keystone-k2g-gpio", "ti,keystone-gpio";
+ reg = <0x02603000 0x100>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupts = <GIC_SPI 432 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 433 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 434 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 435 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 436 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 437 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 438 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 439 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 440 IRQ_TYPE_EDGE_RISING>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ ti,ngpio = <144>;
+ ti,davinci-gpio-unbanked = <0>;
+ clocks = <&k2g_clks 0x001b 0x0>;
+ clock-names = "gpio";
+};
--
1.9.1
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