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From: Sasha Levin <sashal@kernel.org>
To: gregkh@linuxfoundation.org
Cc: tomas@novotny.cz, Jonathan.Cameron@huawei.com,
	Stable@vger.kernel.org, agx@sigxcpu.org
Subject: Re: FAILED: patch "[PATCH] iio: light: vcnl4000: update sampling periods for vcnl4200" failed to apply to 4.19-stable tree
Date: Mon, 23 Mar 2020 12:26:50 -0400	[thread overview]
Message-ID: <20200323162650.GV4189@sasha-vm> (raw)
In-Reply-To: <1584973105253103@kroah.com>

On Mon, Mar 23, 2020 at 03:18:25PM +0100, gregkh@linuxfoundation.org wrote:
>
>The patch below does not apply to the 4.19-stable tree.
>If someone wants it applied there, or to any other stable or longterm
>tree, then please email the backport, including the original git commit
>id to <stable@vger.kernel.org>.
>
>thanks,
>
>greg k-h
>
>------------------ original commit in Linus's tree ------------------
>
>From b42aa97ed5f1169cfd37175ef388ea62ff2dcf43 Mon Sep 17 00:00:00 2001
>From: Tomas Novotny <tomas@novotny.cz>
>Date: Tue, 18 Feb 2020 16:44:50 +0100
>Subject: [PATCH] iio: light: vcnl4000: update sampling periods for vcnl4200
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>Vishay has published a new version of "Designing the VCNL4200 Into an
>Application" application note in October 2019. The new version specifies
>that there is +-20% of part to part tolerance. This explains the drift
>seen during experiments. The proximity pulse width is also changed from
>32us to 30us. According to the support, the tolerance also applies to
>ambient light.
>
>So update the sampling periods. As the reading is blocking, current
>users may notice slightly longer response time.
>
>Fixes: be38866fbb97 ("iio: vcnl4000: add support for VCNL4200")
>Reviewed-by: Guido Günther <agx@sigxcpu.org>
>Signed-off-by: Tomas Novotny <tomas@novotny.cz>
>Cc: <Stable@vger.kernel.org>
>Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

The conflict is because we don't have 5a441aade5b3 ("iio: light:
vcnl4000 add support for the VCNL4040 proximity and light sensor") on
4.19. I've adjusted context and queued it up.

-- 
Thanks,
Sasha

      reply	other threads:[~2020-03-23 16:26 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-23 14:18 FAILED: patch "[PATCH] iio: light: vcnl4000: update sampling periods for vcnl4200" failed to apply to 4.19-stable tree gregkh
2020-03-23 16:26 ` Sasha Levin [this message]

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