mmc: sdhci: dt: Add device tree properties sdhci-caps and sdhci-caps-mask
On some systems the sdhci capabilty register is incorrect for one reason or another. The sdhci-caps-mask property specifies which bits in the register are incorrect and should be turned off before using sdhci-caps to turn on bits. The sdhci-caps property specifies which bits should be turned on. Signed-off-by: Zach Brown <zach.brown@ni.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Documentation/devicetree/bindings/mmc/sdhci.txt
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Documentation/devicetree/bindings/mmc/sdhci.txt
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The properties specific for SD host controllers. For properties shared by MMC
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host controllers refer to the mmc[1] bindings.
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[1] Documentation/devicetree/bindings/mmc/mmc.txt
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Optional properties:
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- sdhci-caps-mask: The sdhci capabilities register is incorrect. This 64bit
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property corresponds to the bits in the sdhci capabilty register. If the bit
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is on in the mask then the bit is incorrect in the register and should be
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turned off, before applying sdhci-caps.
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- sdhci-caps: The sdhci capabilities register is incorrect. This 64bit
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property corresponds to the bits in the sdhci capability register. If the
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bit is on in the property then the bit should be turned on.
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