[PATCH v3 04/12] dt-bindings: i2c: dw: Add Baikal-T1 SoC I2C controller

From: Serge Semin
Date: Tue May 26 2020 - 17:55:47 EST

Add the "baikal,bt1-sys-i2c" compatible string to the DW I2C binding. Even
though the corresponding node is supposed to be a child of the Baikal-T1
System Controller, its reg property is left required for compatibility.

Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx>
Cc: Alexey Malahov <Alexey.Malahov@xxxxxxxxxxxxxxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxxx


Changelog v2:
- Make the reg property being optional if it's Baikal-T1 System I2C DT

Changelog v3:
- Get back the reg property being mandatory even if it's Baikal-T1 System
I2C DT node. Rob says it has to be in the DT node if there is a
dedicated registers range in the System Controller registers space.
Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml | 2 ++
1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
index 101d78e8f19d..8c9b3db1b1b8 100644
--- a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
@@ -31,6 +31,8 @@ properties:
- const: mscc,ocelot-i2c
- const: snps,designware-i2c
+ - description: Baikal-T1 SoC System I2C controller
+ const: baikal,bt1-sys-i2c

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