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net-next:asix:poll in asix_get_phyid in case phy not ready
Sometimes the phy isn't ready after reset...poll and pray it will be soon. Signed-off-by: Freddy Xin <freddy@asix.com.tw> Signed-off-by: Grant Grundler <grundler@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 10 additions and 2 deletions
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@ -652,9 +652,17 @@ static u32 asix_get_phyid(struct usbnet *dev)
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{
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int phy_reg;
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u32 phy_id;
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int i;
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phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1);
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if (phy_reg < 0)
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/* Poll for the rare case the FW or phy isn't ready yet. */
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for (i = 0; i < 100; i++) {
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phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1);
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if (phy_reg != 0 && phy_reg != 0xFFFF)
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break;
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mdelay(1);
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}
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if (phy_reg <= 0 || phy_reg == 0xFFFF)
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return 0;
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phy_id = (phy_reg & 0xffff) << 16;
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