net: phy: bcm7xxx: request and manage GPHY clock

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The internal Gigabit PHY on Broadcom STB chips has a digital clock which
drives its MDIO interface among other things, the driver now requests
and manage that clock during .probe() and .remove() accordingly.

Because the PHY driver can be probed with the clocks turned off we need
to apply the dummy BMSR workaround during the driver probe function to
ensure subsequent MDIO read or write towards the PHY will succeed.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Florian Fainelli 2020-09-16 19:04:13 -07:00 • committed by David S. Miller

parent 5f3666e839

commit ba4ee3c053

1 changed files with 29 additions and 1 deletions

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drivers/net/phy/bcm7xxx.c

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