From: Luca Ceresoli <luca.ceresoli@bootlin.com>
To: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Sowjanya Komatineni <skomatineni@nvidia.com>,
David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Dmitry Osipenko <digetx@gmail.com>,
linux-media@vger.kernel.org, linux-tegra@vger.kernel.org,
dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
Richard Leitner <richard.leitner@skidata.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Subject: Re: [RESEND PATCH v4 03/21] staging: media: tegra-video: fix .vidioc_enum_fmt_vid_cap to return all formats
Date: Tue, 4 Apr 2023 16:12:51 +0200 [thread overview]
Message-ID: <20230404161251.272cc78b@booty> (raw)
In-Reply-To: <85268d69-3d3b-2c0f-ba26-073f09052362@xs4all.nl>
Hello Hans,
On Wed, 29 Mar 2023 13:16:22 +0200
Hans Verkuil <hverkuil-cisco@xs4all.nl> wrote:
> Hi Luca,
>
> I finally found the time to test this series. It looks OK, except for this patch.
Thank you very much for taking the time!
> The list of supported formats really has to be the intersection of what the tegra
> supports and what the sensor supports.
>
> Otherwise you would advertise pixelformats that cannot be used, and the application
> would have no way of knowing that.
As far as I understand, I think we should rather make this driver fully
behave as an MC-centric device. It is already using MC quite
successfully after all.
Do you think this is correct?
If you do, then I think the plan would be:
- Add the V4L2_CAP_IO_MC flag
- As the mbus_code in get_format appropriately
- Leave the changes in this patch unmodified otherwise
Best regards,
Luca
--
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
WARNING: multiple messages have this Message-ID (diff)
From: Luca Ceresoli <luca.ceresoli@bootlin.com>
To: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: devicetree@vger.kernel.org,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Richard Leitner <richard.leitner@skidata.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
Rob Herring <robh+dt@kernel.org>,
Jonathan Hunter <jonathanh@nvidia.com>,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
Thierry Reding <thierry.reding@gmail.com>,
Sowjanya Komatineni <skomatineni@nvidia.com>,
dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org,
Dmitry Osipenko <digetx@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
linux-media@vger.kernel.org
Subject: Re: [RESEND PATCH v4 03/21] staging: media: tegra-video: fix .vidioc_enum_fmt_vid_cap to return all formats
Date: Tue, 4 Apr 2023 16:12:51 +0200 [thread overview]
Message-ID: <20230404161251.272cc78b@booty> (raw)
In-Reply-To: <85268d69-3d3b-2c0f-ba26-073f09052362@xs4all.nl>
Hello Hans,
On Wed, 29 Mar 2023 13:16:22 +0200
Hans Verkuil <hverkuil-cisco@xs4all.nl> wrote:
> Hi Luca,
>
> I finally found the time to test this series. It looks OK, except for this patch.
Thank you very much for taking the time!
> The list of supported formats really has to be the intersection of what the tegra
> supports and what the sensor supports.
>
> Otherwise you would advertise pixelformats that cannot be used, and the application
> would have no way of knowing that.
As far as I understand, I think we should rather make this driver fully
behave as an MC-centric device. It is already using MC quite
successfully after all.
Do you think this is correct?
If you do, then I think the plan would be:
- Add the V4L2_CAP_IO_MC flag
- As the mbus_code in get_format appropriately
- Leave the changes in this patch unmodified otherwise
Best regards,
Luca
--
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
next prev parent reply other threads:[~2023-04-04 14:13 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-09 14:42 [RESEND PATCH v4 00/21] Add Tegra20 parallel video input capture Luca Ceresoli
2023-03-09 14:42 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 01/21] dt-bindings: display: tegra: add Tegra20 VIP Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 02/21] dt-bindings: display: tegra: vi: add 'vip' property and example Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 03/21] staging: media: tegra-video: fix .vidioc_enum_fmt_vid_cap to return all formats Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-29 11:16 ` Hans Verkuil
2023-03-29 11:16 ` Hans Verkuil
2023-03-29 11:56 ` Hans Verkuil
2023-03-29 11:56 ` Hans Verkuil
2023-04-04 14:12 ` Luca Ceresoli [this message]
2023-04-04 14:12 ` Luca Ceresoli
2023-04-05 2:30 ` Laurent Pinchart
2023-04-05 2:30 ` Laurent Pinchart
2023-04-05 8:31 ` Luca Ceresoli
2023-04-05 8:31 ` Luca Ceresoli
2023-04-05 8:50 ` Hans Verkuil
2023-04-05 8:50 ` Hans Verkuil
2023-04-05 9:28 ` Thierry Reding
2023-04-05 9:28 ` Thierry Reding
2023-04-05 14:30 ` Laurent Pinchart
2023-04-05 14:30 ` Laurent Pinchart
2023-03-09 14:43 ` [RESEND PATCH v4 04/21] staging: media: tegra-video: improve documentation of tegra_video_format fields Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 05/21] staging: media: tegra-video: document tegra_channel_get_remote_source_subdev Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 06/21] staging: media: tegra-video: fix typos in comment Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 07/21] staging: media: tegra-video: improve error messages Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 08/21] staging: media: tegra-video: slightly simplify cleanup on errors Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 09/21] staging: media: tegra-video: move private struct declaration to C file Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 10/21] staging: media: tegra-video: move tegra210_csi_soc " Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 11/21] staging: media: tegra-video: remove unneeded include Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 12/21] staging: media: tegra-video: Kconfig: allow TPG only on Tegra210 Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 13/21] staging: media: tegra-video: move tegra_channel_fmt_align to a per-soc op Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 14/21] staging: media: tegra-video: move default format to soc-specific data Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 15/21] staging: media: tegra-video: move MIPI calibration calls from VI to CSI Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 16/21] staging: media: tegra-video: add a per-soc enable/disable op Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 17/21] staging: media: tegra-video: move syncpt init/free to a per-soc op Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 18/21] staging: media: tegra-video: add syncpts for Tegra20 to struct tegra_vi Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 19/21] staging: media: tegra-video: add hooks for planar YUV and H/V flip Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 20/21] staging: media: tegra-video: add H/V flip controls Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-09 14:43 ` [RESEND PATCH v4 21/21] staging: media: tegra-video: add support for Tegra20 parallel input Luca Ceresoli
2023-03-09 14:43 ` Luca Ceresoli
2023-03-22 9:14 ` [RESEND PATCH v4 00/21] Add Tegra20 parallel video input capture Luca Ceresoli
2023-03-22 9:14 ` Luca Ceresoli
2023-03-22 9:29 ` Hans Verkuil
2023-03-22 9:29 ` Hans Verkuil
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