gpio: mpc8xxx: Add new platforms GPIO DT node description

Update the NXP GPIO node dt-binding file for QorIQ and
Layerscape platforms, and add one more example with
ls1028a GPIO node.

Signed-off-by: Song Hui <hui.song_1@nxp.com>
Link: https://lore.kernel.org/r/20190807021254.49092-1-hui.song_1@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
index 69d4616..baf95d9 100644 (file)
--- a/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt
@@ -4,7 +4,7 @@ Required properties:
 - compatible : Should be "fsl,<soc>-gpio"
   The following <soc>s are known to be supported:
        mpc5121, mpc5125, mpc8349, mpc8572, mpc8610, pq3, qoriq,
-       ls1021a, ls1043a, ls2080a.
+       ls1021a, ls1043a, ls2080a, ls1028a.
 - reg : Address and length of the register set for the device
 - interrupts : Should be the port interrupt shared by all 32 pins.
 - #gpio-cells : Should be two.  The first cell is the pin number and
@@ -37,3 +37,17 @@ gpio0: gpio@2300000 {
        interrupt-controller;
        #interrupt-cells = <2>;
 };
+
+
+Example of gpio-controller node for a ls1028a SoC:
+
+gpio1: gpio@2300000 {
+       compatible = "fsl,ls1028a-gpio","fsl,qoriq-gpio";
+       reg = <0x0 0x2300000 0x0 0x10000>;
+       interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+       gpio-controller;
+       #gpio-cells = <2>;
+       interrupt-controller;
+       #interrupt-cells = <2>;
+       little-endian;
+};