linux-kernel - [PATCH] dt-bindings: mfd: gateworks-gsc: Add fan-tach mode

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Message-Id: <1609183716-26529-1-git-send-email-tharvey@gateworks.com>
Date:   Mon, 28 Dec 2020 11:28:36 -0800
From:   Tim Harvey <tharvey@...eworks.com>
To:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Tim Harvey <tharvey@...eworks.com>
Subject: [PATCH] dt-bindings: mfd: gateworks-gsc: Add fan-tach mode

In 7497d4a66c59 ("hwmon: (gsc-hwmon) add fan sensor") a mode
was added to report RPM's from a fan tach input.

Add this mode to the dt-bindings for the Gateworks System Controller.

Signed-off-by: Tim Harvey <tharvey@...eworks.com>
---
 Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml b/Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml
index d08e8fe..5a1e8d2 100644
--- a/Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml
+++ b/Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml
@@ -83,8 +83,9 @@ properties:
                 2 - scaled voltage based on an optional resistor divider
                     and optional offset
                 3 - pre-scaled 16-bit voltage value
+                4 - fan tach input to report RPM's
             $ref: /schemas/types.yaml#/definitions/uint32
-            enum: [0, 1, 2, 3]
+            enum: [0, 1, 2, 3, 4]
 
           gw,voltage-divider-ohms:
             description: Values of resistors for divider on raw ADC input
-- 
2.7.4