tree af3d2f19d8cd3db7e4a65ef4c2ca450cf1503cd6
parent b3ead320dce6c7d7206103deca766b317591c286
author Luca Coelho <luciano.coelho@intel.com> 1575529434 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1577807195 +0100

iwlwifi: pcie: move power gating workaround earlier in the flow

commit 0df36b90c47d93295b7e393da2d961b2f3b6cde4 upstream.

We need to reset the NIC after setting the bits to enable power
gating and that cannot be done too late in the flow otherwise it
cleans other registers and things that were already configured,
causing initialization to fail.

In order to fix this, move the function to the common code in trans.c
so it can be called directly from there at an earlier point, just
after the reset we already do during initialization.

Fixes: 9a47cb988338 ("iwlwifi: pcie: add workaround for power gating in integrated 22000")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=205719
Cc: stable@ver.kernel.org # 5.4+
Reported-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>