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Commit 76a0a3f9 authored by Vitaly Lifshits's avatar Vitaly Lifshits Committed by Jakub Kicinski
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e1000e: fix force smbus during suspend flow

Commit 861e8086 ("e1000e: move force SMBUS from enable ulp function
to avoid PHY loss issue") resolved a PHY access loss during suspend on
Meteor Lake consumer platforms, but it affected corporate systems
incorrectly.

A better fix, working for both consumer and corporate systems, was
proposed in commit bfd546a5 ("e1000e: move force SMBUS near the end
of enable_ulp function"). However, it introduced a regression on older
devices, such as [8086:15B8], [8086:15F9], [8086:15BE].

This patch aims to fix the secondary regression, by limiting the scope of
the changes to Meteor Lake platforms only.

Fixes: bfd546a5

 ("e1000e: move force SMBUS near the end of enable_ulp function")
Reported-by: default avatarTodd Brandt <todd.e.brandt@intel.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218940
Reported-by: default avatarDieter Mummenschanz <dmummenschanz@web.de>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218936
Signed-off-by: default avatarVitaly Lifshits <vitaly.lifshits@intel.com>
Tested-by: Mor Bar-Gabay <morx.bar.gabay@intel.com> (A Contingent Worker at Intel)
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240709203123.2103296-1-anthony.l.nguyen@intel.com
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 97a90635
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