linux-kernel - Re: [BUG 0/5] bug reports for atomisp to make it work

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Date:   Mon, 18 Oct 2021 09:50:07 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Tsuchiya Yuto <kitakar@...il.com>
Cc:     Patrik Gfeller <patrik.gfeller@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Arnd Bergmann <arnd@...db.de>,
        Kaixu Xia <kaixuxia@...cent.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Nable <nable.maininbox@...glemail.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Fabio Aiuto <fabioaiuto83@...il.com>,
        "andrey.i.trufanov" <andrey.i.trufanov@...il.com>
Subject: Re: [BUG 0/5] bug reports for atomisp to make it work

Hi All,

Just adding some folks to the Cc.

Regards,

Hans

On 10/17/21 18:23, Tsuchiya Yuto wrote:
> Hi all,
> 
> These mails contain RFC patches, which are almost bug report and some
> are just bug report, for atomisp to work (again). Tested on Microsoft
> Surface 3 (Windows) and Xiaomi Mi Pad 2 (Android model) with v5.15-rc5.
> Both are Cherry Trail (ISP2401) devices.
> 
> I'm still not used to Linux patch sending flow. Sorry in advance
> if there is some weirdness :-) but I did my best.
> 
> To try to take a picture, take a look at the series I sent earlier named
> ("various fixes for atomisp to make it work")
> 
> The 1st patch is required to take a picture with atomsip (again):
> 
>     [BUG][RFC] media: atomisp: pci: assume run_mode is PREVIEW
> 
> The 2nd patch is to avoid kernel warning message:
> 
>     [BUG][RFC] media: atomisp: pci: remove dummy_ptr NULL check to avoid
>       duplicate active_bo
> 
> The 3rd patch is to avoid kernel oops, which is almost required for
> using atomisp normally:
> 
>     [BUG][RFC] media: atomisp: pci: add NULL check for asd obtained from
>       atomisp_video_pipe
> 
> The 4th-5th mail is bug reports, no patches for these issues yet:
> 
>     [BUG] media: atomisp: `modprobe -r` not working well (dup video4linux,
>       ATOMISP_SUBDEV_{0,1})
>     [BUG] media: atomisp: atomisp causes touchscreen to stop working on
>       Microsoft Surface 3
> 
> I added further descriptions at the top of each RFC/BUG mails.
> 
> Regards,
> Tsuchiya Yuto
> 
> Tsuchiya Yuto (5):
>   [BUG][RFC] media: atomisp: pci: assume run_mode is PREVIEW
>   [BUG][RFC] media: atomisp: pci: remove dummy_ptr NULL check to avoid
>     duplicate active_bo
>   [BUG][RFC] media: atomisp: pci: add NULL check for asd obtained from
>     atomisp_video_pipe
>   [BUG] media: atomisp: `modprobe -r` not working well (dup video4linux,
>     ATOMISP_SUBDEV_{0,1})
>   [BUG] media: atomisp: atomisp causes touchscreen to stop working on
>     Microsoft Surface 3
> 
>  .../staging/media/atomisp/pci/atomisp_cmd.c   | 73 ++++++++++++++
>  .../staging/media/atomisp/pci/atomisp_fops.c  |  6 ++
>  .../staging/media/atomisp/pci/atomisp_ioctl.c | 96 ++++++++++++++++++-
>  drivers/staging/media/atomisp/pci/hmm/hmm.c   |  4 -
>  4 files changed, 174 insertions(+), 5 deletions(-)
>