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Message-ID: <20260131170409.328060fd@jic23-huawei>
Date: Sat, 31 Jan 2026 17:04:09 +0000
From: Jonathan Cameron <jic23@...nel.org>
To: Jean-Baptiste Maneyrol via B4 Relay
<devnull+jean-baptiste.maneyrol.tdk.com@...nel.org>
Cc: jean-baptiste.maneyrol@....com, David Lechner <dlechner@...libre.com>,
Nuno Sá <nuno.sa@...log.com>, Andy Shevchenko
<andy@...nel.org>, Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Jean-Baptiste Maneyrol <jmaneyrol@...ensense.com>,
linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
stable@...r.kernel.org
Subject: Re: [PATCH] iio: imu: inv_icm42600: fix odr switch when turning
buffer off
On Fri, 30 Jan 2026 17:10:23 +0100
Jean-Baptiste Maneyrol via B4 Relay <devnull+jean-baptiste.maneyrol.tdk.com@...nel.org> wrote:
> From: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@....com>
>
> ODR switch is done in 2 steps when FIFO is on : change the ODR register
> value and acknowledge change when reading the FIFO ODR change flag.
> When we are switching odr and turning buffer off just afterward, we are
> losing the FIFO ODR change flag and ODR switch is blocked.
>
> Fix the issue by force applying any waiting ODR change when turning
> buffer off.
>
> Fixes: ec74ae9fd37c ("iio: imu: inv_icm42600: add accurate timestamping")
> Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@....com>
> Cc: stable@...r.kernel.org
Applied to my local tree for now. I'll rebase on something sensible in next
few weeks then push it out.
Thanks,
Jonathan
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