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From: Debjeet Banerjee <debjeetbanerjee48@gmail.com>
To: sakari.ailus@linux.intel.com
Cc: andy.shevchenko@gmail.com, andy@kernel.org,
	debjeetbanerjee48@gmail.com, gregkh@linuxfoundation.org,
	hansg@kernel.org, linux-kernel@vger.kernel.org,
	linux-media@vger.kernel.org, linux-staging@lists.linux.dev,
	mchehab@kernel.org
Subject: Re: [PATCH v3] media: atomisp: csi2: Fix DPCM decompression for source pad format
Date: Wed, 22 Apr 2026 16:46:49 +0530	[thread overview]
Message-ID: <20260422111649.9604-1-debjeetbanerjee48@gmail.com> (raw)
In-Reply-To: <aeinCTZwB871zRAd@kekkonen.localdomain>

On Wed, Apr 22, 2026 at 01:46:33PM +0300, Sakari Ailus wrote:
> It may well be but the rest of the driver doesn't appear to support DPCM
> uncompression. Rather than trying to pretend it does, I'd instead just
> remove any references to it.

Thanks for the feedback Sakari.

So if I understand correctly, the right fix here is to remove all the
DPCM-related dead code: compressed_codes[], atomisp_subdev_uncompressed_code(),
atomisp_subdev_is_compressed(), and atomisp_find_in_fmt_conv_compressed()
declaration 

And in atomisp_csi2.c just keep the source pad copying the sink format as before, 
but drop the FIXME comment since we're explicitly acknowledging DPCM is not supported?

Please let me know if I'm on the right track before I send v4 of this patch.

Regards,
Debjeet

  reply	other threads:[~2026-04-22 11:17 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20260420032701.33250-1-debjeetbanerjee48@gmail.com>
2026-04-20  4:34 ` [PATCH v2] staging: media: atomisp: csi2: Fix DPCM decompression for source pad format Debjeet Banerjee
2026-04-20  6:46   ` Andy Shevchenko
2026-04-20  7:42     ` Debjeet Banerjee
2026-04-21  8:22     ` [PATCH v3] " Debjeet Banerjee
2026-04-22 10:46       ` Sakari Ailus
2026-04-22 11:16         ` Debjeet Banerjee [this message]
2026-04-22 11:18           ` Sakari Ailus
2026-04-22 12:20             ` [PATCH v4 1/2] media: atomisp: csi2: Remove unimplemented DPCM decompression Debjeet Banerjee
2026-04-22 12:20               ` [PATCH v4 2/2] media: atomisp: Remove unused DPCM helper functions and declarations Debjeet Banerjee
2026-04-22 12:38               ` [PATCH v4 1/2] media: atomisp: csi2: Remove unimplemented DPCM decompression Sakari Ailus
2026-04-22 12:48                 ` [PATCH v3] media: atomisp: csi2: Fix DPCM decompression for source pad format Debjeet Banerjee
2026-04-22 12:51                 ` [PATCH v4 1/2] media: atomisp: csi2: Remove unimplemented DPCM decompression Debjeet Banerjee
2026-04-22 12:58                   ` Sakari Ailus
2026-04-22 13:38                     ` Debjeet Banerjee

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