linux-kernel - [RFC PATCH v2 1/3] regulator: bindings: Add properties for coupled regulators

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Message-id: <1508330822-8039-2-git-send-email-m.purski@samsung.com>
Date:   Wed, 18 Oct 2017 14:47:00 +0200
From:   Maciej Purski <m.purski@...sung.com>
To:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Maciej Purski <m.purski@...sung.com>
Subject: [RFC PATCH v2 1/3] regulator: bindings: Add properties for coupled
 regulators

Some regulators require keeping their voltage spread below defined
max_spread.

Add properties to provide information on regulators' coupling.

Signed-off-by: Maciej Purski <m.purski@...sung.com>
---
 Documentation/devicetree/bindings/regulator/regulator.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt
index 378f6dc..6769565 100644
--- a/Documentation/devicetree/bindings/regulator/regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/regulator.txt
@@ -60,6 +60,10 @@ Optional properties:
 	0: Disable active discharge.
 	1: Enable active discharge.
 	Absence of this property will leave configuration to default.
+- regulator-coupled-with: Phandle to regulators with which the regulator
+  should be coupled. Allow up to 9 phandles.
+- regulator-coupled-max-spread: Max spread between voltages of coupled regulators
+  in microvolts.
 
 Deprecated properties:
 - regulator-compatible: If a regulator chip contains multiple
-- 
2.7.4