[PATCH v4 03/11] dt-bindings: i2c: dw: Add Baikal-T1 SoC I2C controller

Serge Semin
2020-05-27T12:08:37Z

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@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: linux-mips@vger.kernel.org

---

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

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:
items:
- const: mscc,ocelot-i2c
- const: snps,designware-i2c
+ - description: Baikal-T1 SoC System I2C controller
+ const: baikal,bt1-sys-i2c

reg:
minItems: 1
--
2.26.2