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

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Date:   Mon, 18 Oct 2021 01:23:31 +0900
From:   Tsuchiya Yuto <kitakar@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Patrik Gfeller <patrik.gfeller@...il.com>,
        Tsuchiya Yuto <kitakar@...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
Subject: [BUG 0/5] bug reports for atomisp to make it work

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(-)

-- 
2.33.1