From c4dbbdbeae07a6523b258523dcca0f4047fb831f Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@st.com>
Date: Tue, 17 Apr 2012 17:10:07 +0530
Subject: [PATCH] dmaengine: dw_dmac: Add clk_{un}prepare() support
clk_{un}prepare is mandatory for platforms using common clock framework. Since
this driver is used by SPEAr platform, which supports common clock framework,
add clk_{un}prepare() support for it.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
---
drivers/dma/dw_dmac.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 7439079f5eed9..300d976b66617 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1429,7 +1429,7 @@ static int __init dw_probe(struct platform_device *pdev)
err = PTR_ERR(dw->clk);
goto err_clk;
}
- clk_enable(dw->clk);
+ clk_prepare_enable(dw->clk);
/* force dma off, just in case */
dw_dma_off(dw);
@@ -1510,7 +1510,7 @@ static int __init dw_probe(struct platform_device *pdev)
return 0;
err_irq:
- clk_disable(dw->clk);
+ clk_disable_unprepare(dw->clk);
clk_put(dw->clk);
err_clk:
iounmap(dw->regs);
@@ -1540,7 +1540,7 @@ static int __exit dw_remove(struct platform_device *pdev)
channel_clear_bit(dw, CH_EN, dwc->mask);
}
- clk_disable(dw->clk);
+ clk_disable_unprepare(dw->clk);
clk_put(dw->clk);
iounmap(dw->regs);
@@ -1559,7 +1559,7 @@ static void dw_shutdown(struct platform_device *pdev)
struct dw_dma *dw = platform_get_drvdata(pdev);
dw_dma_off(platform_get_drvdata(pdev));
- clk_disable(dw->clk);
+ clk_disable_unprepare(dw->clk);
}
static int dw_suspend_noirq(struct device *dev)
@@ -1568,7 +1568,7 @@ static int dw_suspend_noirq(struct device *dev)
struct dw_dma *dw = platform_get_drvdata(pdev);
dw_dma_off(platform_get_drvdata(pdev));
- clk_disable(dw->clk);
+ clk_disable_unprepare(dw->clk);
return 0;
}
@@ -1578,7 +1578,7 @@ static int dw_resume_noirq(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct dw_dma *dw = platform_get_drvdata(pdev);
- clk_enable(dw->clk);
+ clk_prepare_enable(dw->clk);
dma_writel(dw, CFG, DW_CFG_DMA_EN);
return 0;
}
--
2.39.5