There is no place where host->clock is assgined to any value.
If real clock is changed to mmc->clock, host->clock can be assigned to
mmc->clock. If card request to same clock value, it doesn't need to
call sdhci_set_clock() function.
Signed-off-by: Jaehoon Chung <jh80.ch...@samsung.com>
---
drivers/mmc/sdhci.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index d89e302..3f87a23 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -380,8 +380,10 @@ static void sdhci_set_ios(struct mmc *mmc)
if (host->set_control_reg)
host->set_control_reg(host);
- if (mmc->clock != host->clock)
- sdhci_set_clock(mmc, mmc->clock);
+ if (mmc->clock != host->clock) {
+ if (!sdhci_set_clock(mmc, mmc->clock))
+ host->clock = mmc->clock;
+ }
/* Set bus width */
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
--
1.9.1
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