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sdhci: Always pass clock request value zero to set_clock host op

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To allow the set_clock host op to disable the SDCLK source when not
needed, always call the host op when the requested clock speed is
zero.  Do this even if host->clock already equals zero, because
the SDHCI driver may set that value (without calling the host op)
to force an update at the next (non-zero-speed) call.

Change-Id: If99230d76138679b5767f77cb925f15408ae518e
Signed-off-by: Todd Poynor <toddpoynor@google.com>
This commit is contained in:
Todd Poynor
2010-10-11 16:51:28 -07:00
committed by Colin Cross
parent b824eef4ce
commit 6e144f28e5
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/host/sdhci.c
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@@ -1044,7 +1044,7 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
u16 clk = 0;
unsigned long timeout;
if (clock == host->clock)
if (clock && clock == host->clock)
return;
if (host->ops->set_clock) {