On Tue, 8 Oct 2019 at 14:34, Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx> wrote: > > Add the specific microchip,sdcal-inverted property to at91 sdhci > device binding. > This optional property describes how the SoC SDCAL pin is connected. > It could be handled at SiP, SoM or board level. > > This property read by at91 sdhci driver will allow to put in place a > software workaround that would reduce power consumption. > > Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx> Applied for next, thanks! Kind regards Uffe > --- > Documentation/devicetree/bindings/mmc/sdhci-atmel.txt | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt > index 1b662d7171a0..503c6dbac1b2 100644 > --- a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt > +++ b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt > @@ -9,6 +9,11 @@ Required properties: > - clocks: Phandlers to the clocks. > - clock-names: Must be "hclock", "multclk", "baseclk"; > > +Optional properties: > +- microchip,sdcal-inverted: when present, polarity on the SDCAL SoC pin is > + inverted. The default polarity for this signal is described in the datasheet. > + For instance on SAMA5D2, the pin is usually tied to the GND with a resistor > + and a capacitor (see "SDMMC I/O Calibration" chapter). > > Example: > > -- > 2.17.1 >
