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authorRob Herring <robh@kernel.org>2022-04-29 22:46:11 +0300
committerRob Herring <robh@kernel.org>2022-05-05 00:18:26 +0300
commitb2b701b31e1c5827957c88e5c1f0c3dde1f55b2f (patch)
tree652bc22ff09aa970bc8c89aecea164bbdd98539a /Documentation
parente17fd4bf54fb579d03566ab22a02dc03b36f4d06 (diff)
downloadlinux-b2b701b31e1c5827957c88e5c1f0c3dde1f55b2f.tar.xz
dt-bindings: pinctrl: Allow values for drive-push-pull and drive-open-drain
A few platforms, at91 and tegra, use drive-push-pull and drive-open-drain with a 0 or 1 value. There's not really a need for values as '1' should be equivalent to no value (it wasn't treated that way) and drive-push-pull disabled is equivalent to drive-open-drain. So dropping the value can't be done without breaking existing OSs. As we don't want new cases, mark the case with values as deprecated. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220429194610.2741437-1-robh@kernel.org
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml12
1 files changed, 10 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml b/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml
index 4b22a9e3a447..f5a121311f61 100644
--- a/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml
@@ -52,11 +52,19 @@ properties:
hardware supporting it the pull strength in Ohm.
drive-push-pull:
- type: boolean
+ oneOf:
+ - type: boolean
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1 ]
+ deprecated: true
description: drive actively high and low
drive-open-drain:
- type: boolean
+ oneOf:
+ - type: boolean
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ const: 1 # No known cases of 0
+ deprecated: true
description: drive with open drain
drive-open-source: