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net: fec: handle small PHY reset durations more precisely 

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>
hifive-unleashed-5.1
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 */