From: Bibby Hsieh <bibby.hsieh@mediatek.com>
To: Wolfram Sang <wsa@the-dreams.de>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
<linux-i2c@vger.kernel.org>
Cc: <tfiga@chromium.org>, <drinkcat@chromium.org>,
<srv_heupstream@mediatek.com>, <robh+dt@kernel.org>,
<mark.rutland@arm.com>, <devicetree@vger.kernel.org>,
"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
Bibby Hsieh <bibby.hsieh@mediatek.com>
Subject: [PATCH v15 1/2] dt-binding: i2c: add bus-supply property
Date: Tue, 19 May 2020 15:27:28 +0800 [thread overview]
Message-ID: <20200519072729.7268-2-bibby.hsieh@mediatek.com> (raw)
In-Reply-To: <20200519072729.7268-1-bibby.hsieh@mediatek.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@mediatek.com>
Acked-by: Rob Herring <robh@kernel.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 9a53df4243c6..e6b5aafc5dc9 100644
--- a/Documentation/devicetree/bindings/i2c/i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c.txt
@@ -98,6 +98,9 @@ wants to support one of the below features, it should adapt the bindings below.
Names of map programmable addresses.
It can contain any map needing another address than default one.
+- 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.
--
2.18.0
next prev parent reply other threads:[~2020-05-19 7:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-19 7:27 [PATCH v15 0/2] add power control in i2c Bibby Hsieh
2020-05-19 7:27 ` Bibby Hsieh [this message]
2020-05-19 8:48 ` [PATCH v15 1/2] dt-binding: i2c: add bus-supply property Wolfram Sang
2020-05-22 14:59 ` Wolfram Sang
2020-05-19 7:27 ` [PATCH v15 2/2] i2c: core: support bus regulator controlling in adapter Bibby Hsieh
2020-05-19 8:48 ` Wolfram Sang
2020-05-22 15:00 ` Wolfram Sang
2020-05-25 11:40 ` Tomasz Figa
2020-05-25 12:00 ` Wolfram Sang
2020-05-22 17:59 ` Grygorii Strashko
2020-05-25 11:34 ` Tomasz Figa
2020-05-26 18:03 ` Grygorii Strashko
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