[PATCH v2 03/12] dt-bindings: i2c: dw: Add Baikal-T1 SoC I2C controller

Serge Semin
2020-05-10T09:50:38Z

Add the "baikal,bt1-sys-i2c" compatible string to the DW I2C binding and
make sure the reg property isn't required in this case because the
controller is embedded into the Baikal-T1 System Controller. The rest of
the DW APB I2C properties are compatible and can be freely used to describe
the Baikal-T1 I2C controller dts-node.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: linux-mips@vger.kernel.org

---

Rob, I had to remove your acked-by tag because of the changes introduced
in v2 of the patch.

Changelog v2:
- Make the reg property being optional if it's Baikal-T1 System I2C DT
node.
---
.../devicetree/bindings/i2c/snps,designware-i2c.yaml | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
index 8d4e5fccbd1c..579964098eb9 100644
--- a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
@@ -21,6 +21,15 @@ allOf:
properties:
reg:
maxItems: 1
+ - if:
+ properties:
+ compatible:
+ not:
+ contains:
+ const: baikal,bt1-sys-i2c
+ then:
+ required:
+ - reg

properties:
compatible:
@@ -31,6 +40,8 @@ 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
@@ -98,7 +109,6 @@ unevaluatedProperties: false

required:
- compatible
- - reg
- "#address-cells"
- "#size-cells"
- interrupts
--
2.25.1