stable.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Kalle Valo <kvalo@kernel.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: mhi@lists.linux.dev, hemantk@codeaurora.org,
	bbhatt@codeaurora.org, loic.poulain@linaro.org,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	ath11k@lists.infradead.org, linux-wireless@vger.kernel.org,
	stable@vger.kernel.org, Pengyu Ma <mapengyu@gmail.com>
Subject: Re: [PATCH] bus: mhi: core: Add support for forced PM resume
Date: Tue, 07 Dec 2021 16:47:42 +0200	[thread overview]
Message-ID: <871r2otqsx.fsf@codeaurora.org> (raw)
In-Reply-To: <20211206161059.107007-1-manivannan.sadhasivam@linaro.org> (Manivannan Sadhasivam's message of "Mon, 6 Dec 2021 21:40:59 +0530")

Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> writes:

> From: Loic Poulain <loic.poulain@linaro.org>
>
> For whatever reason, some devices like QCA6390, WCN6855 using ath11k
> are not in M3 state during PM resume, but still functional. The
> mhi_pm_resume should then not fail in those cases, and let the higher
> level device specific stack continue resuming process.
>
> Add a new parameter to mhi_pm_resume, to force resuming, whatever the
> current MHI state is. This fixes a regression with non functional
> ath11k WiFi after suspend/resume cycle on some machines.
>
> Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=214179
>
> Cc: stable@vger.kernel.org #5.13
> Fixes: 020d3b26c07a ("bus: mhi: Early MHI resume failure in non M3 state")
> Reported-by: Kalle Valo <kvalo@codeaurora.org>
> Reported-by: Pengyu Ma <mapengyu@gmail.com>
> Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
> [mani: Added comment, bug report, added reported-by tags and CCed stable]
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

Thanks! I now tested this patch on top v5.16-rc4 using QCA6390 and
firmware WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1, no issues found:

Tested-by: Kalle Valo <kvalo@kernel.org>

I'm not expecting any conflicts with ath11k, so please take this via the
mhi tree. It would be really good to get this regression fixed in v5.16,
so is it possible to send this to -rc releases?

For the ath11k part:

Acked-by: Kalle Valo <kvalo@kernel.org>

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

  parent reply	other threads:[~2021-12-07 14:47 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-06 16:10 Manivannan Sadhasivam
2021-12-06 17:39 ` Thorsten Leemhuis
2021-12-07 14:47 ` Kalle Valo [this message]
2021-12-07 23:41 ` Hemant Kumar
2021-12-08  8:30   ` Manivannan Sadhasivam
2021-12-08  8:42 ` Manivannan Sadhasivam

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=871r2otqsx.fsf@codeaurora.org \
    --to=kvalo@kernel.org \
    --cc=ath11k@lists.infradead.org \
    --cc=bbhatt@codeaurora.org \
    --cc=hemantk@codeaurora.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=loic.poulain@linaro.org \
    --cc=manivannan.sadhasivam@linaro.org \
    --cc=mapengyu@gmail.com \
    --cc=mhi@lists.linux.dev \
    --cc=stable@vger.kernel.org \
    --subject='Re: [PATCH] bus: mhi: core: Add support for forced PM resume' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).