| Message ID | 20220417144223.649201-1-linus.walleij@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | dt-bindings: mmc: Add small binding node on level shifters | expand |
On Sun, 17 Apr 2022 at 16:44, Linus Walleij <linus.walleij@linaro.org> wrote: > > The VQMMC is often provided by a level shifter, so drop a small note > in the bindings that this can be the case and how that is done. > It is helpful information since this is pretty common. > > Cc: devicetree@vger.kernel.org > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Applied for next, thanks! Kind regards Uffe > --- > Documentation/devicetree/bindings/mmc/mmc-controller.yaml | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml > index 513f3c8758aa..ff5ce89e5111 100644 > --- a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml > +++ b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml > @@ -298,7 +298,10 @@ properties: > > vqmmc-supply: > description: > - Supply for the bus IO line power > + Supply for the bus IO line power, such as a level shifter. > + If the level shifter is controlled by a GPIO line, this shall > + be modeled as a "regulator-fixed" with a GPIO line for > + switching the level shifter on/off. > > mmc-pwrseq: > $ref: /schemas/types.yaml#/definitions/phandle > -- > 2.35.1 >
diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml index 513f3c8758aa..ff5ce89e5111 100644 --- a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml +++ b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml @@ -298,7 +298,10 @@ properties: vqmmc-supply: description: - Supply for the bus IO line power + Supply for the bus IO line power, such as a level shifter. + If the level shifter is controlled by a GPIO line, this shall + be modeled as a "regulator-fixed" with a GPIO line for + switching the level shifter on/off. mmc-pwrseq: $ref: /schemas/types.yaml#/definitions/phandle
The VQMMC is often provided by a level shifter, so drop a small note in the bindings that this can be the case and how that is done. It is helpful information since this is pretty common. Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- Documentation/devicetree/bindings/mmc/mmc-controller.yaml | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)