BACKPORT: power: goldfish_battery: add devicetree bindings

Add device tree bindings to the Goldfish virtual platform battery drivers.

Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Jin Qian <jinqian@android.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
(cherry picked from commit 65d687a7b7d6f27e4306fe8cc8a1ca66a1a760f6)

Change-Id: If947ea3341ff0cb713c56e14d18d51a3f5912b64

diff --git a/Documentation/devicetree/bindings/goldfish/battery.txt b/Documentation/devicetree/bindings/goldfish/battery.txt
new file mode 100644 (file)
index 0000000..4fb6139
--- /dev/null
+++ b/Documentation/devicetree/bindings/goldfish/battery.txt
@@ -0,0 +1,17 @@
+Android Goldfish Battery
+
+Android goldfish battery device generated by android emulator.
+
+Required properties:
+
+- compatible : should contain "google,goldfish-battery" to match emulator
+- reg        : <registers mapping>
+- interrupts : <interrupt mapping>
+
+Example:
+
+       goldfish_battery@9020000 {
+               compatible = "google,goldfish-battery";
+               reg = <0x9020000 0x1000>;
+               interrupts = <0x3>;
+       };

diff --git a/drivers/power/goldfish_battery.c b/drivers/power/goldfish_battery.c
index a50bb988c69a0bbd49cbf455ee3304c066599bbb..7510796e190c23d49086fd9a2b34fd9c83dbafed 100644 (file)
--- a/drivers/power/goldfish_battery.c
+++ b/drivers/power/goldfish_battery.c
@@ -227,11 +227,18 @@ static int goldfish_battery_remove(struct platform_device *pdev)
        return 0;
 }
 
+static const struct of_device_id goldfish_battery_of_match[] = {
+       { .compatible = "google,goldfish-battery", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, goldfish_battery_of_match);
+
 static struct platform_driver goldfish_battery_device = {
        .probe          = goldfish_battery_probe,
        .remove         = goldfish_battery_remove,
        .driver = {
-               .name = "goldfish-battery"
+               .name = "goldfish-battery",
+               .of_match_table = goldfish_battery_of_match,
        }
 };
 module_platform_driver(goldfish_battery_device);