openwrtv4/target/linux/mediatek/patches-4.14/0206-dt-bindings-clock-mediatek-update-audsys-documentati.patch

From e6d9c3121f2a8b92bd6202d6a32e7d428990d7d7 Mon Sep 17 00:00:00 2001
From: Ryder Lee <ryder.lee@mediatek.com>
Date: Tue, 6 Mar 2018 17:09:29 +0800
Subject: [PATCH 206/224] dt-bindings: clock: mediatek: update audsys
 documentation to adapt MFD device

The MediaTek audio hardware block that exposes functionalities that are
handled by separate subsystems in the kernel.  These functions are all
mapped somewhere at 0x112xxxxx, and there are some control bits are mixed
up with other functions within the same registers.

This patch modifies example to illustrate child nodes.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
---
 .../bindings/arm/mediatek/mediatek,audsys.txt         | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.txt
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.txt
@@ -13,10 +13,19 @@ The AUDSYS controller uses the common cl
 Documentation/devicetree/bindings/clock/clock-bindings.txt
 The available clocks are defined in dt-bindings/clock/mt*-clk.h.
 
+Required sub-nodes:
+-------
+For common binding part and usage, refer to
+../sonud/mt2701-afe-pcm.txt.
+
 Example:
 
-audsys: audsys@11220000 {
-	compatible = "mediatek,mt7622-audsys", "syscon";
-	reg = <0 0x11220000 0 0x1000>;
-	#clock-cells = <1>;
-};
+	audsys: clock-controller@11220000 {
+		compatible = "mediatek,mt7622-audsys", "syscon";
+		reg = <0 0x11220000 0 0x2000>;
+		#clock-cells = <1>;
+
+		afe: audio-controller {
+			...
+		};
+	};