diff options
| author | Alexander Dahl <ada@thorsis.com> | 2025-11-19 13:47:36 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-11-20 18:03:59 -0800 |
| commit | bccaf1fe08f2c9f96f6bc38391d41e67f6bf38e3 (patch) | |
| tree | 1cf52b2f85fbeaafe824b1e069fa6a6f953ea3f8 /drivers | |
| parent | 22eaa206fcacc54e8bc0487c7667883df9200e57 (diff) | |
net: phy: adin1100: Fix software power-down ready condition
Value CRSM_SFT_PD written to Software Power-Down Control Register
(CRSM_SFT_PD_CNTRL) is 0x01 and therefor different to value
CRSM_SFT_PD_RDY (0x02) read from System Status Register (CRSM_STAT) for
confirmation powerdown has been reached.
The condition could have only worked when disabling powerdown
(both 0x00), but never when enabling it (0x01 != 0x02).
Result is a timeout, like so:
$ ifdown eth0
macb f802c000.ethernet eth0: Link is Down
ADIN1100 f802c000.ethernet-ffffffff:01: adin_set_powerdown_mode failed: -110
ADIN1100 f802c000.ethernet-ffffffff:01: adin_set_powerdown_mode failed: -110
Fixes: 7eaf9132996a ("net: phy: adin1100: Add initial support for ADIN1100 industrial PHY")
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20251119124737.280939-2-ada@thorsis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/phy/adin1100.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/phy/adin1100.c b/drivers/net/phy/adin1100.c index bd7a47a903ac..10b796c2daee 100644 --- a/drivers/net/phy/adin1100.c +++ b/drivers/net/phy/adin1100.c @@ -201,7 +201,7 @@ static int adin_set_powerdown_mode(struct phy_device *phydev, bool en) return ret; return phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1, ADIN_CRSM_STAT, ret, - (ret & ADIN_CRSM_SFT_PD_RDY) == val, + !!(ret & ADIN_CRSM_SFT_PD_RDY) == en, 1000, 30000, true); } |