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mmc: sdhci: Disable internal clock enable bit

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Disable internal clock by clearing the internal
clock enable bit. This bit needs to be cleared too
when we stop the SDCLK for changing the frequency
divisor. This bit should be set to zero when the
device is not using the Host controller.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Siva Durga Prasad Paladugu 2016-02-25 12:51:50 +05:30 committed by Michal Simek
parent 211815784c
commit 1d405e207b
1 changed files with 1 additions and 1 deletions

2
drivers/mmc/sdhci.c
View File

@ -313,7 +313,7 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
}
reg = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
reg &= ~SDHCI_CLOCK_CARD_EN;
reg &= ~(SDHCI_CLOCK_CARD_EN | SDHCI_CLOCK_INT_EN);
sdhci_writew(host, reg, SDHCI_CLOCK_CONTROL);
if (clock == 0)