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authorVipul Kumar Samar <vipulkumar.samar@st.com>2012-11-08 19:09:09 +0400
committerChris Ball <cjb@laptop.org>2012-12-06 22:55:02 +0400
commit257f9df12307cb0239196d9ec18e2af12c52435e (patch)
treef6f2410f0989a9b2f09a974549d67620340fe3cc /drivers
parentb96efccb8fc9939605599e5b2c026644973cc92d (diff)
downloadlinux-257f9df12307cb0239196d9ec18e2af12c52435e.tar.xz
mmc: sdhci-spear: Initialize sdhci clk to 50 MHz
SPEAr sdhci driver expects the clock to be set to 50 MHz for proper functioning. This patch sets clk to 50 MHz in probe. Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/host/sdhci-spear.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index 6be89c032deb..fea8bf92efab 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -146,6 +146,11 @@ static int __devinit sdhci_probe(struct platform_device *pdev)
goto put_clk;
}
+ ret = clk_set_rate(sdhci->clk, 50000000);
+ if (ret)
+ dev_dbg(&pdev->dev, "Error setting desired clk, clk=%lu\n",
+ clk_get_rate(sdhci->clk));
+
if (np) {
sdhci->data = sdhci_probe_config_dt(pdev);
if (IS_ERR(sdhci->data)) {