Add device tree node for the abox_generic platform driver to enable
its registration as a platform device. This node does not represent
direct hardware resources but is necessary for driver initialization
and platform device binding.
Properties added in the device tree node:
- samsung,num-pcm-playback (uint32):
Maximum number of supported PCM playback devices.
Here, PCM playback devices refer to ALSA PCM devices.
- samsung,num-pcm-capture (uint32):
Maximum number of supported PCM capture devices.
Here, PCM capture devices refer to ALSA PCM devices.
- samsung,num-i2s-dummy-backend (uint32):
Maximum number of supported I2S dummy backend devices.
The node is declared disabled by default in the main device tree source,
and enabled via board-specific DTS overlays by setting status = "okay".
This device tree binding document will be added under
Documentation/devicetree/bindings/sound/samsung,exynosauto.yaml
to describe the node properties and usage.
Signed-off-by: ew kim <ew.kim@xxxxxxxxxxx>
---
arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts | 4 ++++
arch/arm64/boot/dts/exynos/exynosautov920.dtsi | 10 ++++++++++
2 files changed, 14 insertions(+)
diff --git a/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts b/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts
index a397f068ed53..a870c0b6847f 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts
+++ b/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts
@@ -86,3 +86,7 @@ &usi_0 {
&xtcxo {
clock-frequency = <38400000>;
};
+
+&abox_generic {
+ status = "okay";
+};
\ No newline at end of file
diff --git a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
index 2cb8041c8a9f..4f086a7a79c8 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
@@ -1126,6 +1126,16 @@ timer {
<GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>,
<GIC_PPI 12 IRQ_TYPE_LEVEL_LOW>;
};
+
+ abox_generic: abox_generic {
+ compatible = "samsung,abox_generic";
+ samsung,num-pcm-playback = <32>;
+ samsung,num-pcm-capture = <32>;
+ samsung,num-i2s-dummy-backend = <5>;
+ status = "disabled";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ };
};
#include "exynosautov920-pinctrl.dtsi"
--
2.25.1
