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31 lines
995 B
Diff
31 lines
995 B
Diff
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From 434d2312cd8057aa6972f2b39aa0b359d02af9f4 Mon Sep 17 00:00:00 2001
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From: Paul Barker <pbarker@konsulko.com>
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Date: Thu, 3 Sep 2020 12:26:21 +0100
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Subject: [PATCH] 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
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b53_switch_reset() by looking at the dmesg output.
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Signed-off-by: Paul Barker <pbarker@konsulko.com>
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Acked-by: Florian Fainelli <f.fainelli@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/dsa/b53/b53_common.c | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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--- a/drivers/net/dsa/b53/b53_common.c
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+++ b/drivers/net/dsa/b53/b53_common.c
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@@ -740,8 +740,11 @@ static int b53_switch_reset(struct b53_d
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usleep_range(1000, 2000);
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} while (timeout-- > 0);
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- if (timeout == 0)
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+ if (timeout == 0) {
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+ dev_err(dev->dev,
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+ "Timeout waiting for SW_RST to clear!\n");
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return -ETIMEDOUT;
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+ }
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}
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b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
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