linux-kernel - [RFC PATCH v2 5/7] dt-bindings: regulator: bd9576 add FET ON-resistance for OCW

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Message-ID: <2ad797a4948a4580e0726c14d139e751d228b804.1615367099.git.matti.vaittinen@fi.rohmeurope.com>
Date:   Wed, 10 Mar 2021 15:09:26 +0200
From:   Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
To:     mazziesaccount@...il.com, matti.vaittinen@...rohmeurope.com
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-power@...rohmeurope.com, linux-arm-msm@...r.kernel.org
Subject: [RFC PATCH v2 5/7] dt-bindings: regulator: bd9576 add FET
 ON-resistance for OCW

BD9576MUF provides over-current protection and detection. Current is
measured as voltage loss over external FET. Allow specifying FET's on
resistance so current monitoring limits can be converted to voltages.

Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
---
 .../devicetree/bindings/regulator/rohm,bd9576-regulator.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/rohm,bd9576-regulator.yaml b/Documentation/devicetree/bindings/regulator/rohm,bd9576-regulator.yaml
index b6515a0cee62..9c119c1b1904 100644
--- a/Documentation/devicetree/bindings/regulator/rohm,bd9576-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/rohm,bd9576-regulator.yaml
@@ -27,6 +27,11 @@ patternProperties:
       Properties for single regulator.
     $ref: "regulator.yaml#"
 
+    properties:
+      rohm,ocw-fet-ron-micro-ohms:
+      description: External FET's ON-resistance. Required if VoutS1 OCP/OCW is
+        to be set.
+
     required:
       - regulator-name
 
-- 
2.25.4


-- 
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]