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It is not uncommon to see systems where there is no physical write-protect signal (e.g. when using eMMC or microSD card slots). For some controllers, which have a dedicated write-protection detection logic (like SDHCI controllers), the get_ro() callback can return bogus data in such a case. Instead of handling this on a per controller basis this patch adds a new capability flag to the MMC core that can be set to specify that the result of get_ro() is invalid. When the flag is set the core will not call get_ro() and assume that the card is always read-write. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> |
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