Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Colin Ian King <colin.i.king@gmail.com> <colin.king@canonical.com>

Corey Minyard <minyard@acm.org>

Damian Hobson-Garcia <dhobsong@igel.co.jp>

Dan Carpenter <error27@gmail.com> <dan.carpenter@oracle.com>

Daniel Borkmann <daniel@iogearbox.net> <danborkmann@googlemail.com>

Daniel Borkmann <daniel@iogearbox.net> <danborkmann@iogearbox.net>

Daniel Borkmann <daniel@iogearbox.net> <daniel.borkmann@tik.ee.ethz.ch>

Pratyush Anand <pratyush.anand@gmail.com> <pratyush.anand@st.com>

Praveen BP <praveenbp@ti.com>

Punit Agrawal <punitagrawal@gmail.com> <punit.agrawal@arm.com>

Qais Yousef <qsyousef@gmail.com> <qais.yousef@imgtec.com>

Qais Yousef <qyousef@layalina.io> <qais.yousef@imgtec.com>

Qais Yousef <qyousef@layalina.io> <qais.yousef@arm.com>

Quentin Monnet <quentin@isovalent.com> <quentin.monnet@netronome.com>

Quentin Perret <qperret@qperret.net> <quentin.perret@arm.com>

Rafael J. Wysocki <rjw@rjwysocki.net> <rjw@sisk.pl>

   :maxdepth: 1

   initrd_table_override

   dsdt-override

   ssdt-overlays

   cppc_sysfs

   fan_performance_states

    also gain new certificates at run time if they are signed by a certificate

    already in the secondary trusted keyring.

try_verify_in_tasklet

    If verity hashes are in cache, verify data blocks in kernel tasklet instead

    of workqueue. This option can reduce IO latency.

Theory of operation

===================

  For retrieving device info via ``ublksrv_ctrl_dev_info``. It is the server's

  responsibility to save IO target specific info in userspace.

- ``UBLK_CMD_START_USER_RECOVERY``

  This command is valid if ``UBLK_F_USER_RECOVERY`` feature is enabled. This

  command is accepted after the old process has exited, ublk device is quiesced

  and ``/dev/ublkc*`` is released. User should send this command before he starts

  a new process which re-opens ``/dev/ublkc*``. When this command returns, the

  ublk device is ready for the new process.

- ``UBLK_CMD_END_USER_RECOVERY``

  This command is valid if ``UBLK_F_USER_RECOVERY`` feature is enabled. This

  command is accepted after ublk device is quiesced and a new process has

  opened ``/dev/ublkc*`` and get all ublk queues be ready. When this command

  returns, ublk device is unquiesced and new I/O requests are passed to the

  new process.

- user recovery feature description

  Two new features are added for user recovery: ``UBLK_F_USER_RECOVERY`` and

  ``UBLK_F_USER_RECOVERY_REISSUE``.

  With ``UBLK_F_USER_RECOVERY`` set, after one ubq_daemon(ublk server's io

  handler) is dying, ublk does not delete ``/dev/ublkb*`` during the whole

  recovery stage and ublk device ID is kept. It is ublk server's

  responsibility to recover the device context by its own knowledge.

  Requests which have not been issued to userspace are requeued. Requests

  which have been issued to userspace are aborted.

  With ``UBLK_F_USER_RECOVERY_REISSUE`` set, after one ubq_daemon(ublk

  server's io handler) is dying, contrary to ``UBLK_F_USER_RECOVERY``,

  requests which have been issued to userspace are requeued and will be

  re-issued to the new process after handling ``UBLK_CMD_END_USER_RECOVERY``.

  ``UBLK_F_USER_RECOVERY_REISSUE`` is designed for backends who tolerate

  double-write since the driver may issue the same I/O request twice. It

  might be useful to a read-only FS or a VM backend.

Data plane

----------

Dongwoon Anatech DW9714 camera voice coil lens driver

DW9174 is a 10-bit DAC with current sink capability. It is intended

for driving voice coil lenses in camera modules.

Mandatory properties:

- compatible: "dongwoon,dw9714"

- reg: I²C slave address