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| author | Todd Poynor <toddpoynor@google.com> | 2011-12-27 15:48:46 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-01-11 23:58:47 -0500 |
| commit | 30832ab56c80d96cfaf5a786524f0d8c57fadfa1 (patch) | |
| tree | 4afa0434624ca794611d61d17892770f9e41644e /drivers/mmc | |
| parent | e2a0a5829c4069ee4a0f28c7301187ffaba91a46 (diff) | |
| download | linux-stable-30832ab56c80d96cfaf5a786524f0d8c57fadfa1.tar.gz linux-stable-30832ab56c80d96cfaf5a786524f0d8c57fadfa1.tar.bz2 linux-stable-30832ab56c80d96cfaf5a786524f0d8c57fadfa1.zip | |
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>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 6f1fd02fe01b..e06299734f5d 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -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; |