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net: fec: handle small PHY reset durations more precisely

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Since msleep is based on jiffies the PHY reset could take longer
than expected. So use msleep for values greater than 20 msec otherwise
usleep_range.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefan Wahren 2016-06-08 20:42:46 +00:00 committed by David S. Miller
parent 38b7097b55
commit eb37c56361
1 changed files with 6 additions and 1 deletions
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7
drivers/net/ethernet/freescale/fec_main.c
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@ -3191,7 +3191,12 @@ static void fec_reset_phy(struct platform_device *pdev)
dev_err(&pdev->dev, "failed to get phy-reset-gpios: %d\n", err);
return;
}
msleep(msec);
if (msec > 20)
msleep(msec);
else
usleep_range(msec * 1000, msec * 1000 + 1000);
gpio_set_value_cansleep(phy_reset, !active_high);
}
#else /* CONFIG_OF */