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mmc: sdhci: Add support for disabling clock

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This patch adds support to disable clock if clk_disable
was set and then enable or set clock if the clock was changed
or clock was disabled when clock needs to be enabled.

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 2018-04-19 12:37:04 +05:30 • committed by Michal Simek
parent 36332b6e4b
commit 2a2d7efe77
1 changed files with 3 additions and 0 deletions
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3
drivers/mmc/sdhci.c
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@ -439,6 +439,9 @@ static int sdhci_set_ios(struct mmc *mmc)
if (mmc->clock != host->clock)
sdhci_set_clock(mmc, mmc->clock);
if (mmc->clk_disable)
sdhci_set_clock(mmc, 0);
/* Set bus width */
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
if (mmc->bus_width == 8) {