diff options
| author | Vipul Kumar Samar <vipulkumar.samar@st.com> | 2012-11-08 20:39:54 +0530 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2012-11-15 23:40:20 -0500 |
| commit | 9addf6afeef0f2c9a1fef880e2dbe633d15a89bd (patch) | |
| tree | 308064de7d1ead295a88eba3215152a2d481813d /drivers/ata/pata_arasan_cf.c | |
| parent | 60817a680b1bd3341b6909fab7d8a1fcc3a78369 (diff) | |
| download | linux-9addf6afeef0f2c9a1fef880e2dbe633d15a89bd.tar.gz linux-9addf6afeef0f2c9a1fef880e2dbe633d15a89bd.tar.bz2 linux-9addf6afeef0f2c9a1fef880e2dbe633d15a89bd.zip | |
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>
Diffstat (limited to 'drivers/ata/pata_arasan_cf.c')
| -rw-r--r-- | drivers/ata/pata_arasan_cf.c | 6 |
1 files changed, 6 insertions, 0 deletions
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 : |