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authorVipul Kumar Samar <vipulkumar.samar@st.com>2012-11-08 20:39:09 +0530
committerChris Ball <cjb@laptop.org>2012-12-06 13:55:02 -0500
commit257f9df12307cb0239196d9ec18e2af12c52435e (patch)
treef6f2410f0989a9b2f09a974549d67620340fe3cc
parentb96efccb8fc9939605599e5b2c026644973cc92d (diff)
downloadop-kernel-dev-257f9df12307cb0239196d9ec18e2af12c52435e.zip
op-kernel-dev-257f9df12307cb0239196d9ec18e2af12c52435e.tar.gz
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>
-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 6be89c0..fea8bf9 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)) {
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