The dwmac4_dma_reset() function use an open coded of readl_poll_timeout().
Replace the open coded handling with the proper function.
Signed-off-by: Dejin Zheng <[email protected]>
---
drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
index f2a29a90e085..6b911e360e27 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
@@ -6,6 +6,7 @@
*/
#include <linux/io.h>
+#include <linux/iopoll.h>
#include <linux/delay.h>
#include "common.h"
#include "dwmac4_dma.h"
@@ -14,19 +15,16 @@
int dwmac4_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),
+ 10000, 100000);
+ if (err)
return -EBUSY;
return 0;
--
2.25.0