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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