From: Kalle Valo <kvalo@codeaurora.org>
To: Rakesh Pillai <pillair@codeaurora.org>
Cc: ath10k@lists.infradead.org, linux-wireless@vger.kernel.org,
linux-kernel@vger.kernel.org,
Rakesh Pillai <pillair@codeaurora.org>
Subject: Re: [PATCH] ath10k: Register shutdown handler
Date: Tue, 18 Aug 2020 09:49:00 +0000 (UTC) [thread overview]
Message-ID: <20200818094900.D38E5C433CB@smtp.codeaurora.org> (raw)
In-Reply-To: <1593193981-30161-1-git-send-email-pillair@codeaurora.org>
Rakesh Pillai <pillair@codeaurora.org> wrote:
> As a part of device shutdown the smmu driver will be
> stopped and henceforth any IOVA address translation
> will not be done. The wlan driver, being one of the
> smmu driver consumer, should stop all the dma related
> activity as a part of shutdown, and thereby ensuring
> that no dma activity is done once the smmu driver
> shuts down.
>
> During the device shutdown, the smmu calls shutdown
> for all its consumers in order to indicate them to
> stop all their dma activities.
>
> Register the shutdown handler to stop the wlan
> driver and avoid any dma operations.
>
> Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1
>
> Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Patch applied to ath-next branch of ath.git, thanks.
caf275463d37 ath10k: Register shutdown handler
--
https://patchwork.kernel.org/patch/11628291/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2020-08-18 9:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-26 17:53 Rakesh Pillai
2020-08-18 9:49 ` Kalle Valo [this message]
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