From: Boris Brezillon <boris.brezillon@collabora.com>
To: Sean Nyekjaer <sean@geanix.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Boris Brezillon <bbrezillon@kernel.org>,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 3/4] mtd: core: protect access to MTD devices while in suspend
Date: Tue, 23 Nov 2021 14:07:15 +0100 [thread overview]
Message-ID: <20211123140715.280b2f70@collabora.com> (raw)
In-Reply-To: <20211123125012.ibzqu44ixmykbhkt@skn-laptop>
On Tue, 23 Nov 2021 13:50:12 +0100
Sean Nyekjaer <sean@geanix.com> wrote:
> @Boris do we need to do something similar here to what we did with the
> mtdconcat stuff?
Absolutely, physmasp subdevices are never initialized/registered, so
you can't call any of the mtd helpers taking the suspend lock on those.
I guess it'd be better to call mtd_suspend/resume() on the concat device
in though:
static void physmap_flash_shutdown(struct platform_device *dev)
{
struct physmap_flash_info *info = platform_get_drvdata(dev);
mtd_suspend(info->cmtd);
}
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WARNING: multiple messages have this Message-ID (diff)
From: Boris Brezillon <boris.brezillon@collabora.com>
To: Sean Nyekjaer <sean@geanix.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Boris Brezillon <bbrezillon@kernel.org>,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 3/4] mtd: core: protect access to MTD devices while in suspend
Date: Tue, 23 Nov 2021 14:07:15 +0100 [thread overview]
Message-ID: <20211123140715.280b2f70@collabora.com> (raw)
In-Reply-To: <20211123125012.ibzqu44ixmykbhkt@skn-laptop>
On Tue, 23 Nov 2021 13:50:12 +0100
Sean Nyekjaer <sean@geanix.com> wrote:
> @Boris do we need to do something similar here to what we did with the
> mtdconcat stuff?
Absolutely, physmasp subdevices are never initialized/registered, so
you can't call any of the mtd helpers taking the suspend lock on those.
I guess it'd be better to call mtd_suspend/resume() on the concat device
in though:
static void physmap_flash_shutdown(struct platform_device *dev)
{
struct physmap_flash_info *info = platform_get_drvdata(dev);
mtd_suspend(info->cmtd);
}
next prev parent reply other threads:[~2021-11-23 13:19 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-02 11:02 [PATCH v5 0/4] mtd: core: protect access to mtd devices while in suspend Sean Nyekjaer
2021-11-02 11:02 ` Sean Nyekjaer
2021-11-02 11:02 ` [PATCH v5 1/4] mtd: rawnand: nand_bbt: hide suspend/resume hooks while scanning bbt Sean Nyekjaer
2021-11-02 11:02 ` Sean Nyekjaer
2021-11-19 18:35 ` Miquel Raynal
2021-11-19 18:35 ` Miquel Raynal
2021-11-02 11:02 ` [PATCH v5 2/4] mtd: mtdconcat: don't use mtd_{suspend,resume}() Sean Nyekjaer
2021-11-02 11:02 ` Sean Nyekjaer
2021-11-19 18:35 ` Miquel Raynal
2021-11-19 18:35 ` Miquel Raynal
2021-11-02 11:02 ` [PATCH v5 3/4] mtd: core: protect access to MTD devices while in suspend Sean Nyekjaer
2021-11-02 11:02 ` Sean Nyekjaer
2021-11-19 18:35 ` Miquel Raynal
2021-11-19 18:35 ` Miquel Raynal
2021-11-23 12:03 ` Marek Szyprowski
2021-11-23 12:03 ` Marek Szyprowski
2021-11-23 12:50 ` Sean Nyekjaer
2021-11-23 12:50 ` Sean Nyekjaer
2021-11-23 13:07 ` Boris Brezillon [this message]
2021-11-23 13:07 ` Boris Brezillon
2021-11-29 9:19 ` Miquel Raynal
2021-11-29 9:19 ` Miquel Raynal
2021-11-29 9:41 ` Sean Nyekjaer
2021-11-29 9:41 ` Sean Nyekjaer
2021-11-29 11:17 ` Marek Szyprowski
2021-11-29 11:17 ` Marek Szyprowski
2021-11-30 12:41 ` Sean Nyekjaer
2021-11-30 12:41 ` Sean Nyekjaer
2021-11-30 13:15 ` Boris Brezillon
2021-11-30 13:15 ` Boris Brezillon
2021-11-30 13:29 ` Sean Nyekjaer
2021-11-30 13:29 ` Sean Nyekjaer
2021-11-30 13:37 ` Boris Brezillon
2021-11-30 13:37 ` Boris Brezillon
2021-12-03 13:39 ` Miquel Raynal
2021-12-03 13:39 ` Miquel Raynal
2021-12-09 14:07 ` Sean Nyekjaer
2021-12-09 14:07 ` Sean Nyekjaer
2021-12-09 14:28 ` Miquel Raynal
2021-12-09 14:28 ` Miquel Raynal
2021-12-10 13:25 ` Sean Nyekjaer
2021-12-10 13:25 ` Sean Nyekjaer
2021-12-13 9:10 ` Miquel Raynal
2021-12-13 9:10 ` Miquel Raynal
2021-12-13 9:28 ` Boris Brezillon
2021-12-13 9:28 ` Boris Brezillon
2021-12-13 9:33 ` Miquel Raynal
2021-12-13 9:33 ` Miquel Raynal
2021-12-13 9:53 ` Boris Brezillon
2021-12-13 9:53 ` Boris Brezillon
2021-12-13 10:50 ` Sean Nyekjaer
2021-12-13 10:50 ` Sean Nyekjaer
2021-12-13 11:06 ` Boris Brezillon
2021-12-13 11:06 ` Boris Brezillon
2021-11-02 11:02 ` [PATCH v5 4/4] mtd: rawnand: remove suspended check Sean Nyekjaer
2021-11-02 11:02 ` Sean Nyekjaer
2021-11-19 18:35 ` Miquel Raynal
2021-11-19 18:35 ` Miquel Raynal
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