From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-i2c@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org,
Alain Volmat <alain.volmat@st.com>,
Rob Herring <robh+dt@kernel.org>,
Wolfram Sang <wsa+renesas@sang-engineering.com>
Subject: [PATCH] i2c: add binding to mark a bus as SMBus
Date: Wed, 1 Jul 2020 23:48:30 +0200 [thread overview]
Message-ID: <20200701214830.3174-1-wsa+renesas@sang-engineering.com> (raw)
SMBus is largely compatible with I2C but there are some specifics. In
case we need them on a bus, we can now use this new binding.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
Documentation/devicetree/bindings/i2c/i2c.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt
index 438ae123107e..d1f8cf3bd236 100644
--- a/Documentation/devicetree/bindings/i2c/i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c.txt
@@ -77,6 +77,11 @@ wants to support one of the below features, it should adapt these bindings.
this information to detect a stalled bus more reliably, for example.
Can not be combined with 'multi-master'.
+- smbus
+ states that additional SMBus restrictions and features apply to this bus.
+ Examples of features are SMBusHostNotify and SMBusAlert. Examples of
+ restrictions are more reserved addresses and timeout definitions.
+
Required properties (per child device)
--------------------------------------
--
2.27.0
next reply other threads:[~2020-07-01 21:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-01 21:48 Wolfram Sang [this message]
2020-07-15 20:38 ` [PATCH] i2c: add binding to mark a bus as SMBus Rob Herring
2020-07-24 19:36 ` Wolfram Sang
2020-07-25 12:07 ` Wolfram Sang
2020-07-29 10:53 ` Wolfram Sang
2020-08-21 11:43 ` Wolfram Sang
2020-09-09 8:15 ` Wolfram Sang
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