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Subject: Re: [RFC PATCH v1 0/5] Add Tegra driver for video capture
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
References: <1580235801-4129-1-git-send-email-skomatineni@nvidia.com>
From:   Hans Verkuil <hverkuil@xs4all.nl>
Message-ID: <a6512e1b-ad0e-3f59-e775-418db4865994@xs4all.nl>
Date:   Thu, 30 Jan 2020 15:41:50 +0100
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Hi Sowjanya,

On 1/28/20 7:23 PM, Sowjanya Komatineni wrote:
> This series adds Tegra210 VI and CSI driver for built-in test pattern
> generator (TPG) capture.
> 
> Tegra210 supports max 6 channels on VI and 6 ports on CSI where each
> CSI port is one-to-one mapped to VI channel for video capture.
> 
> This series has TPG support only where it creates hard media links
> between CSI subdevice and VI video device without device graphs.
> 
> v4l2-compliance results are available below the patch diff.
> 
> [v0]:	Includes,
> 	- Adds CSI TPG clock to Tegra210 clock driver
> 	- Host1x video driver with VI and CSI clients.
> 	- Support for Tegra210 only.
> 	- VI CSI TPG support with hard media links in driver.
> 	- Video formats supported by Tegra210 VI
> 	- CSI TPG supported video formats

I'm trying to compile this patch series using the media_tree master
branch (https://git.linuxtv.org//media_tree.git), but it fails:

drivers/staging/media/tegra/tegra-channel.c: In function ‘tegra_channel_queue_setup’:
drivers/staging/media/tegra/tegra-channel.c:71:15: warning: unused variable ‘count’ [-Wunused-variable]
   71 |  unsigned int count = *nbuffers;
      |               ^~~~~
drivers/staging/media/tegra/tegra-channel.c: In function ‘tegra_channel_init’:
drivers/staging/media/tegra/tegra-channel.c:518:55: error: ‘struct host1x_client’ has no member named ‘host’
  518 |  struct tegra_camera *cam = dev_get_drvdata(vi->client.host);
      |                                                       ^
make[4]: *** [scripts/Makefile.build:265: drivers/staging/media/tegra/tegra-channel.o] Error 1
make[4]: *** Waiting for unfinished jobs....
drivers/staging/media/tegra/tegra-vi.c: In function ‘tegra_vi_tpg_graph_init’:
drivers/staging/media/tegra/tegra-vi.c:157:55: error: ‘struct host1x_client’ has no member named ‘host’
  157 |  struct tegra_camera *cam = dev_get_drvdata(vi->client.host);
      |                                                       ^
drivers/staging/media/tegra/tegra-vi.c: In function ‘tegra_vi_init’:
drivers/staging/media/tegra/tegra-csi.c: In function ‘tegra_csi_init’:
drivers/staging/media/tegra/tegra-vi.c:213:51: error: ‘struct host1x_client’ has no member named ‘host’
  213 |  struct tegra_camera *cam = dev_get_drvdata(client->host);
      |                                                   ^~
drivers/staging/media/tegra/tegra-csi.c:259:51: error: ‘struct host1x_client’ has no member named ‘host’
  259 |  struct tegra_camera *cam = dev_get_drvdata(client->host);
      |                                                   ^~
drivers/staging/media/tegra/tegra-vi.c: In function ‘tegra_vi_exit’:
drivers/staging/media/tegra/tegra-vi.c:246:51: error: ‘struct host1x_client’ has no member named ‘host’
  246 |  struct tegra_camera *cam = dev_get_drvdata(client->host);
      |                                                   ^~
drivers/staging/media/tegra/tegra-csi.c: In function ‘tegra_csi_exit’:
drivers/staging/media/tegra/tegra-csi.c:286:51: error: ‘struct host1x_client’ has no member named ‘host’
  286 |  struct tegra_camera *cam = dev_get_drvdata(client->host);
      |                                                   ^~

And indeed, struct host1x_client as defined in include/linux/host1x.h doesn't
have a 'host' field.

Does this series depend on another patch that's not yet in mainline?

Regards,

	Hans