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[2/2] dt-bindings: i2c: mux: i2c-demux-pinctrl: Define "i2c-parent" constraints

Message ID 20240124190552.1551929-2-robh@kernel.org
State New
Headers
Series [1/2] dt-bindings: i2c: mux: i2c-demux-pinctrl: Drop i2c-mux.yaml reference |

Commit Message

Rob Herring Jan. 24, 2024, 7:05 p.m. UTC 
  The 'phandle-array' type is a bit ambiguous. It can be either just an
array of phandles or an array of phandles plus args. "i2c-parent" is
the former and needs to constrain each entry to a single phandle value.

Signed-off-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/i2c/i2c-demux-pinctrl.yaml | 2 ++
 1 file changed, 2 insertions(+)

Comments

Wolfram Sang Feb. 3, 2024, 8:50 p.m. UTC | #1 
On Wed, Jan 24, 2024 at 01:05:51PM -0600, Rob Herring wrote:
> The 'phandle-array' type is a bit ambiguous. It can be either just an
> array of phandles or an array of phandles plus args. "i2c-parent" is
> the former and needs to constrain each entry to a single phandle value.
> 
> Signed-off-by: Rob Herring <robh@kernel.org>

Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
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Patch

diff --git a/Documentation/devicetree/bindings/i2c/i2c-demux-pinctrl.yaml b/Documentation/devicetree/bindings/i2c/i2c-demux-pinctrl.yaml
index dd3d24212551..b813f6d4810c 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-demux-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-demux-pinctrl.yaml
@@ -40,6 +40,8 @@  properties:
 
   i2c-parent:
     $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      maxItems: 1
     description:
       List of phandles of I2C masters available for selection.  The first one
       will be used as default.