From: Mark Brown broonie@linaro.org
It is possible that we may fail to set the clock rate, if we do so then log the failure and don't bother reprogramming the IP.
Signed-off-by: Mark Brown broonie@linaro.org --- drivers/mmc/host/sdhci-s3c.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index 926aaf6..d10de3f 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -295,6 +295,7 @@ static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock) struct device *dev = &ourhost->pdev->dev; unsigned long timeout; u16 clk = 0; + int ret;
/* don't bother if the clock is going off */ if (clock == 0) @@ -302,7 +303,12 @@ static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock)
sdhci_s3c_set_clock(host, clock);
- clk_set_rate(ourhost->clk_bus[ourhost->cur_clk], clock); + ret = clk_set_rate(ourhost->clk_bus[ourhost->cur_clk], clock); + if (ret != 0) { + dev_err(dev, "%s: failed to set clock rate %uHz\n", + mmc_hostname(host->mmc), clock); + return; + }
host->clock = clock;