dm: sound: Create a uclass for i2s
The i2s bus is commonly used with audio codecs. It provides a way to
stream digital data sychronously in both directions. U-Boot only supports
audio output, so this uclass is very simple, with a single tx_data()
method.
Add a uclass and a test for i2s.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 9ced5be..5c2910c 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -47,7 +47,7 @@
#sound-dai-cells = <1>;
};
- cros_ec: cros-ec {
+ cros_ec: cros-ec {
reg = <0 0>;
compatible = "google,cros-ec-sandbox";
@@ -378,6 +378,11 @@
u-boot,dm-pre-reloc;
};
+ i2s: i2s {
+ compatible = "sandbox,i2s";
+ #sound-dai-cells = <1>;
+ };
+
misc-test {
compatible = "sandbox,misc_sandbox";
};