pata_arasan: Initialize cf clock to 166MHz

PATA arasan driver expects the clock to be set to 166 MHz for proper
functioning.  This patch sets clk to 166 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: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 26201eb..71111f2 100644 (file)
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -317,6 +317,12 @@ static int cf_init(struct arasan_cf_dev *acdev)
                return ret;
        }
 
+       ret = clk_set_rate(acdev->clk, 166000000);
+       if (ret) {
+               dev_warn(acdev->host->dev, "clock set rate failed");
+               return ret;
+       }
+
        spin_lock_irqsave(&acdev->host->lock, flags);
        /* configure CF interface clock */
        writel((pdata->cf_if_clk <= CF_IF_CLK_200M) ? pdata->cf_if_clk :