From: Mans Rullgard <mans@xxxxxxxxx>
This consolidates the reads from each of the if/else branches
to one place making the code a lot nicer to look at.
Tested-by: Christian Lamparter <chunkeey@xxxxxxxxxxxxxx>
Signed-off-by: Mans Rullgard <mans@xxxxxxxxx>
---
drivers/ata/sata_dwc_460ex.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 2e3222f..92f4008 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -729,15 +729,14 @@ DONE:
static void sata_dwc_clear_dmacr(struct sata_dwc_device_port *hsdevp, u8 tag)
{
struct sata_dwc_device *hsdev = HSDEV_FROM_HSDEVP(hsdevp);
+ u32 dmacr = sata_dwc_readl(&hsdev->sata_dwc_regs->dmacr);
if (hsdevp->dma_pending[tag] == SATA_DWC_DMA_PENDING_RX) {
- sata_dwc_writel(&hsdev->sata_dwc_regs->dmacr,
- SATA_DWC_DMACR_RX_CLEAR(
- sata_dwc_readl(&hsdev->sata_dwc_regs->dmacr)));
+ dmacr = SATA_DWC_DMACR_RX_CLEAR(dmacr);
+ sata_dwc_writel(&hsdev->sata_dwc_regs->dmacr, dmacr);
} else if (hsdevp->dma_pending[tag] == SATA_DWC_DMA_PENDING_TX) {
- sata_dwc_writel(&hsdev->sata_dwc_regs->dmacr,
- SATA_DWC_DMACR_TX_CLEAR(
- sata_dwc_readl(&hsdev->sata_dwc_regs->dmacr)));
+ dmacr = SATA_DWC_DMACR_TX_CLEAR(dmacr);
+ sata_dwc_writel(&hsdev->sata_dwc_regs->dmacr, dmacr);
} else {
/*
* This should not happen, it indicates the driver is out of
@@ -745,8 +744,7 @@ static void sata_dwc_clear_dmacr(struct sata_dwc_device_port *hsdevp, u8 tag)
*/
dev_err(hsdev->dev,
"%s DMA protocol RX and TX DMA not pending tag=0x%02x pending=%d dmacr: 0x%08x\n",
- __func__, tag, hsdevp->dma_pending[tag],
- sata_dwc_readl(&hsdev->sata_dwc_regs->dmacr));
+ __func__, tag, hsdevp->dma_pending[tag], dmacr);
sata_dwc_writel(&hsdev->sata_dwc_regs->dmacr,
SATA_DWC_DMACR_TXRXCH_CLEAR);
}
--
2.8.0.rc3
--
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