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[RFC,V2,2/2] ASoC: mediatek: add documents for btcvsd driver

Message ID 1548830831-17387-3-git-send-email-kaichieh.chuang@mediatek.com (mailing list archive)
State New, archived
Headers show
Series ASoC: mediatek: add btcvsd driver | expand

Commit Message

KaiChieh Chuang Jan. 30, 2019, 6:47 a.m. UTC 
document for btcvsd driver

Signed-off-by: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
---
 .../bindings/sound/mtk-btcvsd-snd.txt         | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/mtk-btcvsd-snd.txt
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Patch

diff --git a/Documentation/devicetree/bindings/sound/mtk-btcvsd-snd.txt b/Documentation/devicetree/bindings/sound/mtk-btcvsd-snd.txt
new file mode 100644
index 000000000000..679e44839b48
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mtk-btcvsd-snd.txt
@@ -0,0 +1,24 @@ 
+Mediatek ALSA BT SCO CVSD/MSBC Driver
+
+Required properties:
+- compatible = "mediatek,mtk-btcvsd-snd";
+- reg: register location and size of PKV and SRAM_BANK2
+- interrupts: should contain BTSCO interrupt
+- mediatek,infracfg: the phandles of INFRASYS
+- mediatek,offset: Array contains of register offset and mask
+    infra_misc_offset,
+    infra_conn_bt_cvsd_mask,
+    cvsd_mcu_read_offset,
+    cvsd_mcu_write_offset,
+    cvsd_packet_indicator_offset
+
+Example:
+
+	mtk-btcvsd-snd@18000000 {
+		compatible = "mediatek,mtk-btcvsd-snd";
+		reg=<0 0x18000000 0 0x1000>,
+		    <0 0x18080000 0 0x8000>;
+		interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_LOW>;
+		mediatek,infracfg = <&infrasys>;
+		mediatek,offset = <0xf00 0x800 0xfd0 0xfd4 0xfd8>;
+	};