Commit 30832ab5 authored by Todd Poynor's avatar Todd Poynor Committed by Chris Ball

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: default avatarTodd Poynor <toddpoynor@google.com>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent e2a0a582
......@@ -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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