Commit 3fd177cb authored by Dejin Zheng's avatar Dejin Zheng Committed by David S. Miller

net: stmmac: dwmac_lib: remove unnecessary checks in dwmac_dma_reset()

it will check the return value of dwmac_dma_reset() in the
stmmac_init_dma_engine() function and report an error if the
return value is not zero. so don't need check here.
Signed-off-by: default avatarDejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 09d65e6d
......@@ -16,19 +16,14 @@
int dwmac_dma_reset(void __iomem *ioaddr)
{
u32 value = readl(ioaddr + DMA_BUS_MODE);
int err;
/* DMA SW reset */
value |= DMA_BUS_MODE_SFT_RESET;
writel(value, ioaddr + DMA_BUS_MODE);
err = readl_poll_timeout(ioaddr + DMA_BUS_MODE, value,
return readl_poll_timeout(ioaddr + DMA_BUS_MODE, value,
!(value & DMA_BUS_MODE_SFT_RESET),
10000, 100000);
if (err)
return -EBUSY;
return 0;
}
/* CSR1 enables the transmit DMA to check for new descriptor */
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment