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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2014-09-23 16:18:12 +0200
committerVinod Koul <vinod.koul@intel.com>2014-10-15 17:01:04 +0200
commit7a83c045435e896db6c689145d752d28b8b99b7b (patch)
tree19b94720aa378b763c8dd273cb870e292e6117c6 /drivers/dma
parentdmaengine: dw: split dma-dw.h to platform and private parts (diff)
downloadlinux-7a83c045435e896db6c689145d752d28b8b99b7b.tar.xz
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dmaengine: dw: introduce dw_dma_on() helper
As an opposite to dw_dma_off() let's introduce dw_dma_on() helper. It will be useful later as well. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/dw/core.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 9546b1f599f0..e94de0045aaf 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -1470,6 +1470,11 @@ static void dw_dma_off(struct dw_dma *dw)
dw->chan[i].initialized = false;
}
+static void dw_dma_on(struct dw_dma *dw)
+{
+ dma_writel(dw, CFG, DW_CFG_DMA_EN);
+}
+
int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata)
{
struct dw_dma *dw;
@@ -1643,7 +1648,7 @@ int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata)
dw->dma.device_tx_status = dwc_tx_status;
dw->dma.device_issue_pending = dwc_issue_pending;
- dma_writel(dw, CFG, DW_CFG_DMA_EN);
+ dw_dma_on(dw);
err = dma_async_device_register(&dw->dma);
if (err)
@@ -1705,7 +1710,7 @@ int dw_dma_resume(struct dw_dma_chip *chip)
{
struct dw_dma *dw = chip->dw;
- dma_writel(dw, CFG, DW_CFG_DMA_EN);
+ dw_dma_on(dw);
return 0;
}
EXPORT_SYMBOL_GPL(dw_dma_resume);