linux-kernel - [PATCH v16 1/2] dt-binding: i2c: add bus-supply property

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Message-Id: <20210308043607.957156-2-hsinyi@chromium.org>
Date:   Mon,  8 Mar 2021 12:36:06 +0800
From:   Hsin-Yi Wang <hsinyi@...omium.org>
To:     Wolfram Sang <wsa@...nel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        linux-i2c@...r.kernel.org
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Bibby Hsieh <bibby.hsieh@...iatek.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: [PATCH v16 1/2] dt-binding: i2c: add bus-supply property

From: Bibby Hsieh <bibby.hsieh@...iatek.com>

In some platforms, they disable the power-supply of i2c due
to power consumption reduction. This patch add bus-supply property.

Signed-off-by: Bibby Hsieh <bibby.hsieh@...iatek.com>
Acked-by: Rob Herring <robh@...nel.org>
Signed-off-by: Hsin-Yi Wang <hsinyi@...omium.org>
---
 Documentation/devicetree/bindings/i2c/i2c.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt
index df41f72afc87..88972bd62ce1 100644
--- a/Documentation/devicetree/bindings/i2c/i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c.txt
@@ -130,6 +130,9 @@ wants to support one of the below features, it should adapt these bindings.
 - wakeup-source
 	device can be used as a wakeup source.
 
+- bus-supply
+	phandle to the regulator that provides power to SCL/SDA.
+
 Binding may contain optional "interrupts" property, describing interrupts
 used by the device. I2C core will assign "irq" interrupt (or the very first
 interrupt if not using interrupt names) as primary interrupt for the slave.
-- 
2.30.1.766.gb4fecdf3b7-goog