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Commit 8a70aeca authored by LABBE Corentin's avatar LABBE Corentin Committed by David S. Miller
Browse files

net: stmmac: Use readl_poll_timeout 



The dwmac_dma_reset function use an open coded of readl_poll_timeout().
Replace the open coded handling with the proper function.

Signed-off-by: default avatarCorentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a5f48adc

drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c

+6 −8
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
*******************************************************************************/



#include <linux/io.h>

#include <linux/iopoll.h>

#include "common.h"

#include "dwmac_dma.h"
@@ -25,19 +26,16 @@ 
int dwmac_dma_reset(void __iomem *ioaddr)

{

	u32 value = readl(ioaddr + DMA_BUS_MODE);

	int limit;

	int err;



	/* DMA SW reset */

	value |= DMA_BUS_MODE_SFT_RESET;

	writel(value, ioaddr + DMA_BUS_MODE);

	limit = 10;

	while (limit--) {

		if (!(readl(ioaddr + DMA_BUS_MODE) & DMA_BUS_MODE_SFT_RESET))

			break;

		mdelay(10);

	}



	if (limit < 0)

	err = readl_poll_timeout(ioaddr + DMA_BUS_MODE, value,

				 !(value & DMA_BUS_MODE_SFT_RESET),

				 100000, 10000);

	if (err)

		return -EBUSY;



	return 0;