APPLIED: [PATCH 0/1][SRU][H] Fix ath11k MHI regression from stable patches backported
Kleber Souza
kleber.souza at canonical.com
Fri Jun 4 10:00:15 UTC 2021
On 03.06.21 10:24, You-Sheng Yang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1930637
>
> [Impact]
>
> Bug 1928857 pulls stable patches from v5.11.20, which contains commit
> dc764382762e {"bus: mhi: core: Process execution environment changes
> serially") that cause a regression on ath11k cards and fails device
> init:
>
> mhi mhi0: MHI did not enter SBL
>
> [Fix]
>
> Upsteram commit 4884362f6977 ("bus: mhi: core: Download AMSS image
> from appropriate function"), also landed to v5.12.6 but not v5.11
> stable tree, has fixed this.
>
> [Test Case]
>
> Tested on Dell XPS 13 9310. No longer has this regression and both
> WiFi/Bluetooth works fine as before.
>
> [Where problems could occur]
>
> The actual firmware downloading process is moved into a state machine
> callback that has identical semantics with before. Additions or removals
> to this in the future may change the timing of fw being dowloaded.
>
> [Other Info]
>
> While the commit causing this regress is backported to 5.11 onward and
> fixed in v5.12 and 5.13, leaving Hirsute is the only victim.
>
> Bhaumik Bhatt (1):
> bus: mhi: core: Download AMSS image from appropriate function
>
> drivers/bus/mhi/core/boot.c | 51 ++++++++++++++++-----------------
> drivers/bus/mhi/core/internal.h | 1 +
> drivers/bus/mhi/core/pm.c | 2 ++
> 3 files changed, 27 insertions(+), 27 deletions(-)
>
Applied to hirsute:linux.
Thanks,
Kleber
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