net: phy: realtek: add dt property to disable CLKOUT clock

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CLKOUT is enabled by default after PHY hardware reset, this patch adds
"realtek,clkout-disable" property for user to disable CLKOUT clock
to save PHY power.

Per RTL8211F guide, a PHY reset should be issued after setting these
bits in PHYCR2 register. After this patch, CLKOUT clock output to be
disabled.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Joakim Zhang 2021-06-08 11:15:33 +08:00 • committed by David S. Miller

parent a9f15dc2b9

commit 0a4355c2b7

1 changed files with 41 additions and 1 deletions

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drivers/net/phy/realtek.c

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