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Jani Nikula 80afdfa66c drm/edid/firmware: stop using a throwaway platform device 
We've used a temporary platform device for firmware EDID loading since
it was introduced in commit da0df92b57 ("drm: allow loading an EDID as
firmware to override broken monitor"), but there's no explanation why.

Using a temporary device does not play well with CONFIG_FW_CACHE=y,
which caches firmware images (e.g. on suspend) so that drivers can
request firmware when the system is not ready for it, and return the
images from the cache (e.g. during resume). This works automatically for
regular devices, but obviously not for a temporarily created device.

Stop using the throwaway platform device, and use the drm device
instead.

Note that this may still be problematic for cases where the display was
plugged in during suspend, and the firmware wasn't loaded and therefore
not cached before suspend.

References: https://lore.kernel.org/r/20220727074152.43059-1-matthieu.charette@gmail.com
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2061
Reported-by: Matthieu CHARETTE <matthieu.charette@gmail.com>
Tested-by: Matthieu CHARETTE <matthieu.charette@gmail.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20221114111709.434979-1-jani.nikula@intel.com
2022-11-16 14:54:44 +02:00
arch Xilinx ZynqMP DisplayPort bridge support 2022-10-27 14:44:15 +10:00
block block-6.1-2022-10-20 2022-10-21 15:14:14 -07:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
Documentation drm: Move nomodeset kernel parameter to drivers/video 2022-11-16 13:26:12 +01:00
drivers drm/edid/firmware: stop using a throwaway platform device 2022-11-16 14:54:44 +02:00
fs First batch of EFI fixes for v6.1 2022-10-21 18:02:36 -07:00
include fbdev: Add support for the nomodeset kernel parameter 2022-11-16 13:26:25 +01:00
init init: Kconfig: fix spelling mistake "satify" -> "satisfy" 2022-10-20 21:27:22 -07:00
io_uring io_uring/net: fail zc sendmsg when unsupported by socket 2022-10-22 08:43:03 -06:00
ipc - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
kernel kernel/utsname_sysctl.c: Fix hostname polling 2022-10-23 12:01:01 -07:00
lib Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm mm/huge_memory: do not clobber swp_entry_t during THP split 2022-10-20 21:27:24 -07:00
net io_uring-6.1-2022-10-22 2022-10-23 09:55:50 -07:00
rust Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
samples VFIO updates for v6.1-rc1 2022-10-12 14:46:48 -07:00
scripts Kbuild fixes for v6.1 2022-10-16 11:12:22 -07:00
security selinux: enable use of both GFP_KERNEL and GFP_ATOMIC in convert_context() 2022-10-19 09:55:53 -04:00
sound sound fixes for 6.1-rc1 2022-10-14 13:22:14 -07:00
tools RISC-V: 2022-10-23 15:00:43 -07:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt kvm: Add support for arch compat vm ioctls 2022-10-22 05:15:23 -04:00
.clang-format PCI/DOE: Add DOE mailbox support functions 2022-07-19 15:38:04 -07:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap mailmap: update email for Qais Yousef 2022-10-20 21:27:21 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS drm for 5.20/6.0 2022-08-03 19:52:08 -07:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS drm: Move nomodeset kernel parameter to drivers/video 2022-11-16 13:26:12 +01:00
Makefile Linux 6.1-rc2 2022-10-23 15:27:33 -07:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.