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>

diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index 6be89c032debe32f16ad978730b70695a2512aab..fea8bf92efabcd57e2f059bc766cce97eff50b8f 100644 (file)
--- 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)) {