| Message ID | 20241004120740.2887776-1-catalin.popescu@leica-geosystems.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/2] dt-bindings: mmc: mmc-pwrseq-simple: add support for reset control | expand |
On Fri, Oct 04, 2024 at 02:07:39PM +0200, Catalin Popescu wrote: > Add compatible value "mmc-pwrseq-simple-reset" to support reset control > instead of gpios. Reset controls being refcounted, they allow to use > shared resets or gpios across drivers. Support of reset control is > limited to one single reset control. Can't you do this without a binding change? Just use reset controls when there is only 1 GPIO. > > Signed-off-by: Catalin Popescu <catalin.popescu@leica-geosystems.com> > --- > .../bindings/mmc/mmc-pwrseq-simple.yaml | 21 +++++++++++++++++-- > 1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml index 00feaafc1063..da218260af01 100644 --- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml @@ -16,12 +16,13 @@ description: properties: compatible: - const: mmc-pwrseq-simple + enum: + - mmc-pwrseq-simple + - mmc-pwrseq-simple-reset reset-gpios: minItems: 1 # Put some limit to avoid false warnings - maxItems: 32 description: contains a list of GPIO specifiers. The reset GPIOs are asserted at initialization and prior we start the power up procedure of the card. @@ -50,6 +51,22 @@ properties: required: - compatible +allOf: + - if: + properties: + compatible: + contains: + enum: + - mmc-pwrseq-simple-reset + then: + properties: + reset-gpios: + maxItems: 1 + else: + properties: + reset-gpios: + maxItems: 32 + additionalProperties: false examples:
Add compatible value "mmc-pwrseq-simple-reset" to support reset control instead of gpios. Reset controls being refcounted, they allow to use shared resets or gpios across drivers. Support of reset control is limited to one single reset control. Signed-off-by: Catalin Popescu <catalin.popescu@leica-geosystems.com> --- .../bindings/mmc/mmc-pwrseq-simple.yaml | 21 +++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-)