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From: Fabio Estevam <festevam@gmail.com>
To: Vincent Pelletier <plr.vincent@gmail.com>
Cc: Mark Brown <broonie@kernel.org>,
	linux-spi <linux-spi@vger.kernel.org>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
	linux-rpi-kernel@lists.infradead.org,
	Tudor Ambarus <tudor.ambarus@microchip.com>
Subject: Re: 5.11.0-rc1+: "Division by zero in kernel." when writing to spidev
Date: Thu, 7 Jan 2021 22:53:05 -0300	[thread overview]
Message-ID: <CAOMZO5DSw2Nz5e_0Qn0LcqT-uvvpbjEczUOs2qoEbgC+H8Ho5g@mail.gmail.com> (raw)
In-Reply-To: <20210108011044.5780aa96@gmail.com>

Hi Vincent,

On Thu, Jan 7, 2021 at 10:16 PM Vincent Pelletier <plr.vincent@gmail.com> wrote:

> Thanks.
> I added Tudor Ambarus as well as my debugging points in the direction
> of:
> commit 9326e4f1e5dd1a4410c429638d3c412b6fc17040 (spi/for-5.10)
> Author: Tudor Ambarus <tudor.ambarus@microchip.com>
> Date:   Wed Dec 9 19:35:14 2020 +0200
>
>     spi: Limit the spi device max speed to controller's max speed
>
>     Make sure the max_speed_hz of spi_device does not override
>     the max_speed_hz of controller.

There is a fix for this:
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git/commit/?h=for-linus&id=6820e812dafb4258bc14692f686eec5bde6fba86

  reply	other threads:[~2021-01-08  1:54 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-06 12:55 5.11.0-rc1+: "Division by zero in kernel." when writing to spidev Vincent Pelletier
2021-01-06 13:00 ` Mark Brown
2021-01-06 15:06   ` Vincent Pelletier
2021-01-06 17:37     ` Mark Brown
2021-01-07  0:57       ` Vincent Pelletier
2021-01-07 15:35         ` Mark Brown
2021-01-08  1:10           ` Vincent Pelletier
2021-01-08  1:53             ` Fabio Estevam [this message]
2021-01-08 11:55               ` Vincent Pelletier

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