Commit 30832ab5 authored Dec 27, 2011 by Todd Poynor Committed by Chris Ball Jan 11, 2012

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



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.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

parent e2a0a582

drivers/mmc/host/sdhci.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1068,7 +1068,7 @@ 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;

		host->mmc->actual_clock = 0;

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