[PATCH v2 0/8][SRU][N] Dell AIO backlight is not working, dell_uart_backlight module is missing

[AceLan Kao]

From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>

BugLink: https://bugs.launchpad.net/bugs/2083800

[Impact]
Dell AIO backlight need dell_uart_backlight module, but
CONFIG_DELL_UART_BACKLIGHT is not enabled on 6.8.

[Fix]
Enable the option in the kernel config, and also replace the old sauce
driver with the upstream one.

[Test Case]
1. Boot Dell AIO machine to desktop
2. The backlight should be controlled through hotkey and/or GUI

[Where problems could occur]
This series of patches replace the sauce driver with the upstream one.
The functionality is the same.

v2. add all quirks for dell aio
   5c7bb62cb8f5 ACPI: video: Add backlight=native quirk for Dell OptiPlex 7760 AIO
   ac78288fe062 ACPI: video: Add backlight=native quirk for Dell OptiPlex 5480 AIO

Chia-Lin Kao (AceLan) (4):
  UBUNTU: SAUCE: Removed sauce dell-uart-backlight driver
  Revert "UBUNTU: SAUCE: ACPI: video: Dell AIO UART backlight detection"
  UBUNTU: SAUCE: dell_uart_backlight: size_t -> ssize_t
  UBUNTU: [Config] enable CONFIG_DELL_UART_BACKLIGHT

Hans de Goede (4):
  platform/x86: Add new Dell UART backlight driver
  ACPI: video: Add Dell UART backlight controller detection
  ACPI: video: Add backlight=native quirk for Dell OptiPlex 7760 AIO
  ACPI: video: Add backlight=native quirk for Dell OptiPlex 5480 AIO

 debian.master/config/annotations              |   2 +-
 drivers/acpi/video_detect.c                   |  34 +-
 drivers/platform/x86/dell/Kconfig             |  15 +
 .../platform/x86/dell/dell-uart-backlight.c   | 730 ++++++++----------
 .../platform/x86/dell/dell-uart-backlight.h   |  41 -
 include/acpi/video.h                          |   1 +
 6 files changed, 348 insertions(+), 475 deletions(-)
 delete mode 100644 drivers/platform/x86/dell/dell-uart-backlight.h

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2.43.0