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pata_arasan: Initialize cf clock to 166MHz

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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>
This commit is contained in:
Vipul Kumar Samar 2012-11-08 20:39:54 +05:30 committed by Jeff Garzik
parent 60817a680b
commit 9addf6afee
1 changed files with 6 additions and 0 deletions
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6
drivers/ata/pata_arasan_cf.c
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@ -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 :