From: Hans Verkuil <hverkuil@xs4all.nl>
To: Sowjanya Komatineni <skomatineni@nvidia.com>,
thierry.reding@gmail.com, jonathanh@nvidia.com,
frankc@nvidia.com
Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-clk@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH v1 0/5] Add Tegra driver for video capture
Date: Wed, 5 Feb 2020 08:57:32 +0100 [thread overview]
Message-ID: <474ca8c5-4735-1707-d6f6-cf541bfeb525@xs4all.nl> (raw)
In-Reply-To: <af813a4e-339c-4254-75a0-8db995fe2aba@nvidia.com>
On 2/4/20 8:02 PM, Sowjanya Komatineni wrote:
>>>> I also noticed that changing the test pattern while streaming did not seem to have
>>>> any effect until I stop and restart streaming. Is that a limitation of the HW or of
>>>> the driver?
>>> Do you mean changing test pattern mode of different channel while other
>>> channels are streaming?
>> No, from the same channel. E.g. v4l2-ctl --stream-mmap, then do from another
>> console 'v4l2-ctl -c test-pattern=1'.
>>
>> It depends on the hardware whether or not you can change the test pattern
>> while streaming. But it is nice for testing if this is possible.
>
> Test-pattern mode changes during active streaming will not get set as
> test-pattern mode is in CSI and mode is set every time during the start
> of streaming and then VI keeps capturing the frames.
>
> basically its during CSI subdevice stream enable.
OK. Just add a little comment either at the point the control is created or
where the control is set in vi_s_ctrl(). It's just to document that this
will only take effect at the next streamon.
Regards,
Hans
prev parent reply other threads:[~2020-02-05 7:57 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-28 18:23 [RFC PATCH v1 0/5] Add Tegra driver for video capture Sowjanya Komatineni
2020-01-28 18:23 ` [RFC PATCH v1 1/5] dt-bindings: clock: tegra: Add clk id for CSI TPG clock Sowjanya Komatineni
2020-02-05 19:23 ` Stephen Boyd
2020-01-28 18:23 ` [RFC PATCH v1 2/5] clk: tegra: Add Tegra210 CSI TPG clock gate Sowjanya Komatineni
2020-02-05 19:23 ` Stephen Boyd
2020-01-28 18:23 ` [RFC PATCH v1 3/5] dt-binding: tegra: Add VI and CSI bindings Sowjanya Komatineni
2020-01-28 20:32 ` Helen Koike
2020-01-28 21:04 ` Sowjanya Komatineni
2020-01-28 18:23 ` [RFC PATCH v1 4/5] media: tegra: Add Tegra Video input driver for Tegra210 Sowjanya Komatineni
2020-01-28 21:45 ` Helen Koike
2020-01-28 22:13 ` Sowjanya Komatineni
2020-01-29 0:49 ` Sowjanya Komatineni
2020-01-29 1:05 ` Helen Koike
2020-01-29 2:11 ` Sowjanya Komatineni
2020-01-29 5:59 ` Sowjanya Komatineni
2020-01-29 10:31 ` Helen Koike
2020-01-29 17:49 ` Sowjanya Komatineni
2020-01-29 18:15 ` Sowjanya Komatineni
2020-01-29 18:46 ` Helen Koike
2020-01-29 22:40 ` Sowjanya Komatineni
2020-01-29 18:29 ` Helen Koike
2020-01-29 18:46 ` Sowjanya Komatineni
2020-01-29 10:09 ` Thierry Reding
2020-01-29 16:25 ` Sowjanya Komatineni
2020-01-29 11:13 ` Thierry Reding
2020-01-29 17:23 ` Sowjanya Komatineni
2020-01-30 12:20 ` Thierry Reding
2020-01-30 17:02 ` Sowjanya Komatineni
2020-01-29 14:16 ` Hans Verkuil (hansverk)
2020-01-29 17:27 ` Sowjanya Komatineni
2020-01-30 14:45 ` Hans Verkuil
2020-02-05 19:26 ` Stephen Boyd
2020-02-05 19:54 ` Sowjanya Komatineni
2020-01-28 18:23 ` [RFC PATCH v1 5/5] arm64: tegra: Add Tegra VI CSI suppport in device tree Sowjanya Komatineni
2020-01-29 9:46 ` Thierry Reding
2020-01-29 16:22 ` Sowjanya Komatineni
2020-01-30 12:36 ` Thierry Reding
2020-01-30 17:18 ` Sowjanya Komatineni
2020-01-30 17:58 ` Thierry Reding
2020-01-30 18:58 ` Sowjanya Komatineni
2020-01-30 20:18 ` Sowjanya Komatineni
2020-01-31 2:57 ` Sowjanya Komatineni
2020-01-30 14:41 ` [RFC PATCH v1 0/5] Add Tegra driver for video capture Hans Verkuil
2020-01-30 15:42 ` Thierry Reding
2020-01-31 14:29 ` Hans Verkuil
2020-01-31 17:03 ` Thierry Reding
2020-01-31 17:37 ` Hans Verkuil
2020-01-31 20:31 ` Thierry Reding
2020-02-04 9:50 ` Hans Verkuil
2020-01-30 17:20 ` Sowjanya Komatineni
2020-02-04 12:53 ` Hans Verkuil
2020-02-04 16:42 ` Sowjanya Komatineni
2020-02-04 17:22 ` Hans Verkuil
2020-02-04 19:02 ` Sowjanya Komatineni
2020-02-05 7:57 ` Hans Verkuil [this message]
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