[PATCH v4 1/4] dt-bindings: i2c: imx-lpi2c: Add properties and use unevaluatedProperties

Krzysztof Kozlowski
2020-09-17T19:15:03Z

Additional properties actually might appear (e.g. power-domains) so
describe all typical properties, reference generic i2c schema and use
unevaluatedProperties to fix dtbs_check warnings like:

arch/arm64/boot/dts/freescale/imx8qxp-ai_ml.dt.yaml: i2c@5a800000:
'assigned-clock-rates', 'assigned-clocks', 'clock-names', 'power-domains' do not match any of the regexes: 'pinctrl-[0-9]+'

arch/arm64/boot/dts/freescale/imx8qxp-colibri-eval-v3.dt.yaml: i2c@5a800000:
'touchscreen@2c' does not match any of the regexes: 'pinctrl-[0-9]+'

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Changes since v3:
1. Drop address/size cells
2. Set maxItems to power domains to 1

Changes since v2:
1. Add assigned-clock-parents

Changes since v1:
1. Add more properties and include /schemas/i2c/i2c-controller.yaml#
---
.../devicetree/bindings/i2c/i2c-imx-lpi2c.yaml | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
index ac0bc5dd64d6..bf68489eecd1 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
@@ -9,6 +9,9 @@ title: Freescale Low Power Inter IC (LPI2C) for i.MX
maintainers:
- Anson Huang <Anson.Huang@nxp.com>

+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
properties:
compatible:
enum:
@@ -22,23 +25,34 @@ properties:
interrupts:
maxItems: 1

+ assigned-clock-parents: true
+ assigned-clock-rates: true
+ assigned-clocks: true
+ clock-frequency: true
+
+ clock-names:
+ maxItems: 1
+
clocks:
maxItems: 1

+ power-domains:
+ maxItems: 1
+
required:
- compatible
- reg
- interrupts
- clocks

-additionalProperties: false
+unevaluatedProperties: false

examples:
- |
#include <dt-bindings/clock/imx7ulp-clock.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>

- lpi2c7@40a50000 {
+ i2c@40a50000 {
compatible = "fsl,imx7ulp-lpi2c";
reg = <0x40A50000 0x10000>;
interrupt-parent = <&intc>;
--
2.17.1