From: Miodrag Dinic <miodrag.dinic@xxxxxxxxxx>
Enable support for registering this device using the device tree.
Device tree node example for registering Goldfish TTY device :
goldfish_tty@1f004000 {
interrupts = <0xc>;
reg = <0x1f004000 0x1000>;
compatible = "google,goldfish-tty";
};
Signed-off-by: Miodrag Dinic <miodrag.dinic@xxxxxxxxxx>
Signed-off-by: Jin Qian <jinqian@xxxxxxxxxxx>
Signed-off-by: Alan <alan@xxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/goldfish/tty.txt | 17 +++++++++++++++++
drivers/tty/goldfish.c | 10 +++++++++-
2 files changed, 26 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/goldfish/tty.txt
diff --git a/Documentation/devicetree/bindings/goldfish/tty.txt b/Documentation/devicetree/bindings/goldfish/tty.txt
new file mode 100644
index 0000000..8264827
--- /dev/null
+++ b/Documentation/devicetree/bindings/goldfish/tty.txt
@@ -0,0 +1,17 @@
+Android Goldfish TTY
+
+Android goldfish tty device generated by android emulator.
+
+Required properties:
+
+- compatible : should contain "google,goldfish-tty" to match emulator
+- reg : <registers mapping>
+- interrupts : <interrupt mapping>
+
+Example:
+
+ goldfish_tty@1f004000 {
+ compatible = "google,goldfish-tty";
+ reg = <0x1f004000 0x1000>;
+ interrupts = <0xc>;
+ };
diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c
index 752232c..1b3142c 100644
--- a/drivers/tty/goldfish.c
+++ b/drivers/tty/goldfish.c
@@ -324,11 +324,19 @@ static int goldfish_tty_remove(struct platform_device *pdev)
return 0;
}
+static const struct of_device_id goldfish_tty_of_match[] = {
+ { .compatible = "google,goldfish-tty", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, goldfish_tty_of_match);
+
static struct platform_driver goldfish_tty_platform_driver = {
.probe = goldfish_tty_probe,
.remove = goldfish_tty_remove,
.driver = {
- .name = "goldfish_tty"
+ .name = "goldfish_tty",
+ .of_match_table = goldfish_tty_of_match,
}
};
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