From: Mark Brown <broonie@xxxxxxxxxx>
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@xxxxxxxxxx>
Acked-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
---
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 6debda952155..5c20f827d828 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;
/* If the clock is going off, set to 0 at clock control register */
if (clock == 0) {
@@ -305,7 +306,12 @@ 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;
--
1.8.5.1
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