Re: [PATCH v5 1/5] dt-bindings: pinctrl: modify gpio-cells property

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Hi,

On 12/11/2024 11:26, Xianwei Zhao via B4 Relay wrote:
From: Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx>

Extend the value range of #gpio-cells property, including [2, 3],
to compatible with Amlogic A4 SoC and later chips's pinctrl module.
The early GPIO parameter number is 2, and the later GPIO parameter
number is 3.

Signed-off-by: Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx>
---
  .../devicetree/bindings/pinctrl/amlogic,meson-pinctrl-common.yaml       | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-common.yaml b/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-common.yaml
index e707c222a07f..6b53577dea59 100644
--- a/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-common.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-common.yaml
@@ -36,7 +36,7 @@ $defs:
        gpio-controller: true
"#gpio-cells":
-        const: 2
+        enum: [2, 3]
gpio-ranges:
          maxItems: 1


This is not what I expected, this allows 3 cells for all Amlogic pinctrl,
which is wrong.

Instead, remove "#gpio-cells" definition from amlogic,meson-pinctrl-common.yaml
and add them in all amlogic,meson-pinctrl-XXX.yaml with const: 2, and then when you
introduce A4/A5, add a new amlogic,meson-pinctrl-a5.yaml with const: 3.

Neil




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