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Date: Thu, 27 Jun 2019 07:29:46 +0300 From: Baruch Siach <baruch@...s.co.il> To: Andrew Lunn <andrew@...n.ch>, Vivien Didelot <vivien.didelot@...il.com> Cc: netdev@...r.kernel.org, Baruch Siach <baruch@...s.co.il> Subject: [PATCH] net: dsa: mv88e6xxx: wait after reset deactivation Add a 1ms delay after reset deactivation. Otherwise the chip returns bogus ID value. This is observed with 88E6390 (Peridot) chip. Signed-off-by: Baruch Siach <baruch@...s.co.il> --- drivers/net/dsa/mv88e6xxx/chip.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index f4e2db44ad91..549f528f216c 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -4910,6 +4910,7 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev) err = PTR_ERR(chip->reset); goto out; } + mdelay(1); err = mv88e6xxx_detect(chip); if (err) -- 2.20.1
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