On Fri, Jul 18, 2025 at 11:12:38PM +0200, Duje Mihanović wrote: > On the pxav3 controller, increasing the drive strength of the data pins > might be required to maintain stability on fast bus clocks (above 100 > MHz). Add a state_uhs pinctrl to allow this. > > The existing state_cmd_gpio pinctrl is changed to apply only on pxav1 as > it's unneeded on the other controllers. > > Signed-off-by: Duje Mihanović <d...@dujemihanovic.xyz> > --- > .../devicetree/bindings/mmc/sdhci-pxa.yaml | 45 > +++++++++++++++++----- > 1 file changed, 35 insertions(+), 10 deletions(-) > > diff --git a/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml > b/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml > index > 4869ddef36fd89265a1bfe96bb9663b553ac5084..7a9e2a63ac4351aea10b2763ca250ce4889df1eb > 100644 > --- a/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml > +++ b/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml > @@ -30,6 +30,39 @@ allOf: > maxItems: 1 > reg-names: > maxItems: 1 > + - if: > + properties: > + compatible: > + contains: > + const: mrvl,pxav1-mmc > + then: > + properties: > + pinctrl-names: > + description: > + Optional for supporting PXA168 SDIO IRQ errata to switch CMD pin > between > + SDIO CMD and GPIO mode. > + items: > + - const: default > + - const: state_cmd_gpio
blank line > + pinctrl-1: > + description: > + Should switch CMD pin to GPIO mode as a high output. > + - if: > + properties: > + compatible: > + contains: > + const: mrvl,pxav3-mmc > + then: > + properties: > + pinctrl-names: > + description: > + Optional for increasing stability of the controller at fast bus > clocks. > + items: > + - const: default > + - const: state_uhs blank line > + pinctrl-1: > + description: > + Should switch the drive strength of the data pins to high. > > properties: > compatible: > @@ -62,21 +95,13 @@ properties: > - const: io > - const: core > > - pinctrl-names: > - description: > - Optional for supporting PXA168 SDIO IRQ errata to switch CMD pin > between > - SDIO CMD and GPIO mode. > - items: > - - const: default > - - const: state_cmd_gpio > + pinctrl-names: true > > pinctrl-0: > description: > Should contain default pinctrl. > > - pinctrl-1: > - description: > - Should switch CMD pin to GPIO mode as a high output. > + pinctrl-1: true > > mrvl,clk-delay-cycles: > description: Specify a number of cycles to delay for tuning. > > -- > 2.50.1 >
