* [PATCH] ata: pata_arasan: Initialize cf clock to 166MHz
@ 2012-11-08 15:09 Viresh Kumar
2012-11-16 4:40 ` Jeff Garzik
0 siblings, 1 reply; 2+ messages in thread
From: Viresh Kumar @ 2012-11-08 15:09 UTC (permalink / raw)
To: jgarzik
Cc: linux-ide, linux-kernel, spear-devel, Vipul Kumar Samar,
Viresh Kumar
From: Vipul Kumar Samar <vipulkumar.samar@st.com>
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>
---
drivers/ata/pata_arasan_cf.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 26201eb..71111f2 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 :
--
1.7.12.rc2.18.g61b472e
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ata: pata_arasan: Initialize cf clock to 166MHz
2012-11-08 15:09 [PATCH] ata: pata_arasan: Initialize cf clock to 166MHz Viresh Kumar
@ 2012-11-16 4:40 ` Jeff Garzik
0 siblings, 0 replies; 2+ messages in thread
From: Jeff Garzik @ 2012-11-16 4:40 UTC (permalink / raw)
To: Viresh Kumar; +Cc: linux-ide, linux-kernel, spear-devel, Vipul Kumar Samar
On 11/08/2012 10:09 AM, Viresh Kumar wrote:
> From: Vipul Kumar Samar <vipulkumar.samar@st.com>
>
> 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>
> ---
> drivers/ata/pata_arasan_cf.c | 6 ++++++
> 1 file changed, 6 insertions(+)
applied
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-11-08 15:09 [PATCH] ata: pata_arasan: Initialize cf clock to 166MHz Viresh Kumar
2012-11-16 4:40 ` Jeff Garzik
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