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authorTodd Poynor <toddpoynor@google.com>2011-11-20 09:53:23 +0800
committerAndy Green <andy.green@linaro.org>2011-11-20 10:17:55 +0800
commitdd4fcccee027185fcb8d50933828c3eb3bc49ce4 (patch)
tree300fc6838d344b3a84c48e653bf5b11237327140 /drivers
parent376ccddf4f9d1ff2a2fe25614432e83c04d84d58 (diff)
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. Change-Id: If99230d76138679b5767f77cb925f15408ae518e Signed-off-by: Todd Poynor <toddpoynor@google.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/host/sdhci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 6d8eea32354..00f95814fa8 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1069,7 +1069,7 @@ 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) {