From: Vipul Kumar Samar <vipulkumar.samar@st.com>
Date: Thu, 8 Nov 2012 15:09:54 +0000 (+0530)
Subject: pata_arasan: Initialize cf clock to 166MHz
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9addf6afeef0f2c9a1fef880e2dbe633d15a89bd;p=linux-beck.git

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 26201ebef3ca..71111f214eab 100644
--- 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 :