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net: dsa: b53: Print err message on SW_RST timeout

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This allows us to differentiate between the possible failure modes of
b53_switch_reset() by looking at the dmesg output.

Signed-off-by: Paul Barker <pbarker@konsulko.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paul Barker 2020-09-03 12:26:21 +01:00 committed by David S. Miller
parent 3b33438c52
commit 434d2312cd
1 changed files with 4 additions and 1 deletions
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5
drivers/net/dsa/b53/b53_common.c
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@ -765,8 +765,11 @@ static int b53_switch_reset(struct b53_device *dev)
usleep_range(1000, 2000);
} while (timeout-- > 0);
if (timeout == 0)
if (timeout == 0) {
dev_err(dev->dev,
"Timeout waiting for SW_RST to clear!\n");
return -ETIMEDOUT;
}
}
b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);