[PATCH 4.11] ath10k: fix incorrect wlan_mac_base in qca6174_regs

Kalle Valo kvalo at qca.qualcomm.com
Fri Mar 17 08:10:45 PDT 2017

<ryanhsu at qca.qualcomm.com> writes:

> From: Ryan Hsu <ryanhsu at qca.qualcomm.com>
> In the 'commit ebee76f7fa46 ("ath10k: allow setting coverage class")',
> it inherits the design and the address offset from ath9k, but the address
> is not applicable to QCA6174, which leads to a random crash while doing the
> resume() operation, since the set_coverage_class.ops will be called from
> ieee80211_reconfig() when resume() (if the wow is not configured).
> Fix the incorrect address offset here to avoid the random crash.
> Verified on QCA6174/hw3.0 with firmware WLAN.RM.4.4-00022-QCARMSWPZ-2.

This also seems to fix a regression related to firmware restart. I was
testing simulate_fw_crash on qca6174 with current ath.git master branch
and noticed firmware crash recovery fails every time:

[   90.402204] ath10k_pci 0000:02:00.0: device is wedged, will not restart

With this patch the recovery works every time I tested this. But I'm not
100% sure yet about this, need to test more.

> Cc: stable at vger.kernel.org

I'll add '# v4.10' because that should be first release which had
ebee76f7fa46, no need to backport to older releases.

Kalle Valo

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