mmc: sdhci-esdhc-imx: SDHCI_CARD_PRESENT does not get cleared
The function esdhc_readl_le intends to clear bit SDHCI_CARD_PRESENT, when the card detect gpio tells there is no card. But it does not clear the bit actually. The patch gives a fix on that. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Cc: <stable@kernel.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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