On 21/04/2022 20:28, Kamal Dasu wrote: > The 72116B0 has improved SDIO controllers that allow the max clock > rate to be increased from a max of 100MHz to a max of 150MHz. > Optional "sdio_freq" clock is used to drive the bus clock if present > optional property "clock-frequency" specifies a base clock frequency > in Hz that overrides the base clock frequency in the CAPS registers. > > Signed-off-by: Kamal Dasu <kdasu.kdev@xxxxxxxxx> > --- > .../bindings/mmc/brcm,sdhci-brcmstb.yaml | 29 +++++++++++++++---- > 1 file changed, 24 insertions(+), 5 deletions(-) > > diff --git a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml > index dccd5ad96981..1b45a918400a 100644 > --- a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml > +++ b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml > @@ -10,8 +10,6 @@ maintainers: > - Al Cooper <alcooperx@xxxxxxxxx> > - Florian Fainelli <f.fainelli@xxxxxxxxx> > > -allOf: > - - $ref: mmc-controller.yaml# > > properties: > compatible: > @@ -42,23 +40,44 @@ properties: > maxItems: 1 > > clocks: > - maxItems: 1 > - description: > - handle to core clock for the sdhci controller. > + minItems: 1 > + items: > + - description: handle to core clock for the sdhci controller > + - description: improved 150Mhz clock for sdhci controller (Optional clock) > > clock-names: > + minItems: 1 > items: > - const: sw_sdio > + - const: sdio_freq # Optional clock > + > + clock-frequency: > + description: Should be the frequency (in Hz) of the base controller clock > + minimum: 400000 > + maximum: 150000000 Why do you need this property? The mmc-controller.yaml already has max-frequency, so maybe that suits your needs? Best regards, Krzysztof
