Re: [PATCH v4 1/2] i2c: add binding to mark a bus as supporting SMBus-Alert
From: Rob Herring <robh@kernel.org>
Date: 2021-05-07 00:55:23
Also in:
linux-devicetree, linux-i2c, lkml
On Wed, May 05, 2021 at 03:14:38PM +0200, Alain Volmat wrote:
Since SMBus-Alert is an optional feature of SMBUS which requires an additional pin, the smbus binding cannot be used to indicate its support. Add an additional smbus-alert binding specific for it and update the description text of smbus to avoid mentioning SMBus-Alert Signed-off-by: Alain Volmat <alain.volmat@foss.st.com> --- Documentation/devicetree/bindings/i2c/i2c.txt | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
This needs to be added to i2c-bus.yaml too. Acked-by: Rob Herring <robh@kernel.org>
quoted hunk ↗ jump to hunk
diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt index df41f72afc87..b864916e087f 100644 --- a/Documentation/devicetree/bindings/i2c/i2c.txt +++ b/Documentation/devicetree/bindings/i2c/i2c.txt@@ -89,8 +89,11 @@ wants to support one of the below features, it should adapt these bindings. - 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. + An example of feature is SMBusHostNotify. Examples of restrictions are + more reserved addresses and timeout definitions. + +- smbus-alert + states that the optional SMBus-Alert feature apply to this bus. Required properties (per child device) ---------------------------------------- 2.7.4
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