| From 434d2312cd8057aa6972f2b39aa0b359d02af9f4 Mon Sep 17 00:00:00 2001 |
| From: Paul Barker <pbarker@konsulko.com> |
| Date: Thu, 3 Sep 2020 12:26:21 +0100 |
| Subject: [PATCH] net: dsa: b53: Print err message on SW_RST timeout |
| |
| 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> |
| --- |
| drivers/net/dsa/b53/b53_common.c | 5 ++++- |
| 1 file changed, 4 insertions(+), 1 deletion(-) |
| |
| --- a/drivers/net/dsa/b53/b53_common.c |
| +++ b/drivers/net/dsa/b53/b53_common.c |
| @@ -783,8 +783,11 @@ static int b53_switch_reset(struct b53_d |
| 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); |