linux-kernel - [PATCH v2] dt-bindings: input: ti-tsc-adc: Add new compatible for AM654 SoCs

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Message-ID: <20190108052631.4169-1-vigneshr@ti.com>
Date:   Tue, 8 Jan 2019 10:56:31 +0530
From:   Vignesh R <vigneshr@...com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
CC:     Rob Herring <robh+dt@...nel.org>, Vignesh R <vigneshr@...com>,
        <linux-input@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        Lee Jones <lee.jones@...aro.org>
Subject: [PATCH v2] dt-bindings: input: ti-tsc-adc: Add new compatible for AM654 SoCs

AM654 SoCs has ADC IP which is similar to AM335x, but without the
touchscreen part. Add new compatible to handle AM654 SoCs. Also, it
seems that existing compatible strings used in the kernel DTs were never
documented. So, document them now.

Signed-off-by: Vignesh R <vigneshr@...com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
v2:
Fix subject line to include subsystem name
Rebase onto v5.0-rc1
v1: https://lkml.org/lkml/2018/11/19/313

 .../devicetree/bindings/input/touchscreen/ti-tsc-adc.txt  | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
index b1163bf97146..aad5e34965eb 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
@@ -2,7 +2,12 @@
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Required properties:
+- mfd
+	compatible: Should be
+		"ti,am3359-tscadc" for AM335x/AM437x SoCs
+		"ti,am654-tscadc", "ti,am3359-tscadc" for AM654 SoCs
 - child "tsc"
+	compatible: Should be "ti,am3359-tsc".
 	ti,wires: Wires refer to application modes i.e. 4/5/8 wire touchscreen
 		  support on the platform.
 	ti,x-plate-resistance: X plate resistance
@@ -25,6 +30,9 @@ Required properties:
 			AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7.
 			XP  = 0, XN = 1, YP = 2, YN = 3.
 - child "adc"
+	compatible: Should be
+		    "ti,am3359-adc" for AM335x/AM437x SoCs
+		    "ti,am654-adc", "ti,am3359-adc" for AM654 SoCs
 	ti,adc-channels: List of analog inputs available for ADC.
 			 AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7.
 
-- 
2.20.1