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05 April 2024, 19:05:47 UTC
Revision 79fb218d97980d4fee9a64f4c8ff05289364ba25 authored by Florian Fainelli on 23 May 2018, 00:04:49 UTC, committed by David S. Miller on 23 May 2018, 19:27:01 UTC 
net: phy: broadcom: Fix bcm_write_exp()
 
On newer PHYs, we need to select the expansion register to write with
setting bits [11:8] to 0xf. This was done correctly by bcm7xxx.c prior
to being migrated to generic code under bcm-phy-lib.c which
unfortunately used the older implementation from the BCM54xx days.

Fix this by creating an inline stub: bcm_write_exp_sel() which adds the
correct value (MII_BCM54XX_EXP_SEL_ER) and update both the Cygnus PHY
and BCM7xxx PHY drivers which require setting these bits.

broadcom.c is unchanged because some PHYs even use a different selector
method, so let them specify it directly (e.g: SerDes secondary selector).

Fixes: a1cba5613edf ("net: phy: Add Broadcom phy library for common interfaces")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 733a969
History
Tip revision: 79fb218d97980d4fee9a64f4c8ff05289364ba25 authored by Florian Fainelli on 23 May 2018, 00:04:49 UTC
net: phy: broadcom: Fix bcm_write_exp()
Tip revision: 79fb218
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