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From: Kalle Valo <kvalo@codeaurora.org>
To: Douglas Anderson <dianders@chromium.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Ganapathi Bhat <gbhat@marvell.com>,
	linux-wireless@vger.kernel.org,
	Andreas Fenkart <afenkart@gmail.com>,
	Brian Norris <briannorris@chromium.org>,
	Amitkumar Karwar <amitkarwar@gmail.com>,
	linux-rockchip@lists.infradead.org,
	Wolfram Sang <wsa+renesas@sang-engineering.com>,
	Nishant Sarmukadam <nishants@marvell.com>,
	netdev@vger.kernel.org, Avri Altman <avri.altman@wdc.com>,
	linux-mmc@vger.kernel.org, davem@davemloft.net,
	Xinming Hu <huxinming820@gmail.com>,
	Douglas Anderson <dianders@chromium.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/2] mwifiex: Make use of the new sdio_trigger_replug() API to reset
Date: Wed, 24 Jul 2019 11:35:08 +0000 (UTC)
Message-ID: <20190724113508.CD35360388@smtp.codeaurora.org> (raw)
In-Reply-To: <20190722193939.125578-3-dianders@chromium.org>

Douglas Anderson <dianders@chromium.org> wrote:

> As described in the patch ("mmc: core: Add sdio_trigger_replug()
> API"), the current mwifiex_sdio_card_reset() is broken in the cases
> where we're running Bluetooth on a second SDIO func on the same card
> as WiFi.  The problem goes away if we just use the
> sdio_trigger_replug() API call.
> 
> NOTE: Even though with this new solution there is less of a reason to
> do our work from a workqueue (the unplug / plug mechanism we're using
> is possible for a human to perform at any time so the stack is
> supposed to handle it without it needing to be called from a special
> context), we still need a workqueue because the Marvell reset function
> could called from a context where sleeping is invalid and thus we
> can't claim the host.  One example is Marvell's wakeup_timer_fn().
> 
> Cc: Andreas Fenkart <afenkart@gmail.com>
> Cc: Brian Norris <briannorris@chromium.org>
> Fixes: b4336a282db8 ("mwifiex: sdio: reset adapter using mmc_hw_reset")
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
> Reviewed-by: Brian Norris <briannorris@chromium.org>

I assume this is going via some other tree so I'm dropping this from my
queue. If I should apply this please resend once the dependency is in
wireless-drivers-next.

Patch set to Not Applicable.

-- 
https://patchwork.kernel.org/patch/11053351/

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


  reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-22 19:39 [PATCH v2 0/2] mmc: core: Fix Marvell WiFi reset by adding SDIO API to replug card Douglas Anderson
2019-07-22 19:39 ` [PATCH v2 1/2] mmc: core: Add sdio_trigger_replug() API Douglas Anderson
2019-10-10 14:10   ` Ulf Hansson
2019-10-17  0:22     ` Doug Anderson
2019-10-17  9:10       ` Ulf Hansson
2019-07-22 19:39 ` [PATCH v2 2/2] mwifiex: Make use of the new sdio_trigger_replug() API to reset Douglas Anderson
2019-07-24 11:35   ` Kalle Valo [this message]
     [not found]   ` <20190724113508.47A356021C@smtp.codeaurora.org>
2019-07-24 20:22     ` Doug Anderson
2019-07-25  5:56       ` Kalle Valo
2019-07-25 13:28 ` [PATCH v2 0/2] mmc: core: Fix Marvell WiFi reset by adding SDIO API to replug card Ulf Hansson
2019-09-11 21:26   ` Doug Anderson
2019-09-16  9:25     ` Ulf Hansson
2019-10-07 23:39       ` Doug Anderson
2019-10-08 11:49         ` Ulf Hansson
2019-07-30  8:46 ` Andreas Fenkart
2019-07-30 16:59   ` Doug Anderson

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