On Sat, Jul 24, 2021 at 4:14 PM Karol Herbst <kherbst@xxxxxxxxxx> wrote: > > we use the MXM_WMI in code. We also have to keep arm in mind and not > break stuff there. So I will try to play around with your changes and > see how that goes. Ok, should find any randconfig build failures for arm, arm64 or x86 over the weekend. I also this on linux-next today ld: drivers/gpu/drm/i915/display/intel_panel.o: in function `intel_backlight_device_register': intel_panel.c:(.text+0x2804): undefined reference to `backlight_device_register' ld: intel_panel.c:(.text+0x284e): undefined reference to `backlight_device_register' ld: drivers/gpu/drm/i915/display/intel_panel.o: in function `intel_backlight_device_unregister': intel_panel.c:(.text+0x28b1): undefined reference to `backlight_device_unregister' and I added this same thing there to see how it goes: diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig index 87825d36335b..69c6b7aec49e 100644 --- a/drivers/gpu/drm/i915/Kconfig +++ b/drivers/gpu/drm/i915/Kconfig @@ -3,6 +3,8 @@ config DRM_I915 tristate "Intel 8xx/9xx/G3x/G4x/HD Graphics" depends on DRM depends on X86 && PCI + depends on ACPI_VIDEO || !ACPI + depends on BACKLIGHT_CLASS_DEVICE select INTEL_GTT select INTERVAL_TREE # we need shmfs for the swappable backing store, and in particular @@ -16,10 +18,6 @@ config DRM_I915 select IRQ_WORK # i915 depends on ACPI_VIDEO when ACPI is enabled # but for select to work, need to select ACPI_VIDEO's dependencies, ick - select DRM_I915_BACKLIGHT if ACPI - select INPUT if ACPI - select ACPI_VIDEO if ACPI - select ACPI_BUTTON if ACPI select SYNC_FILE select IOSF_MBI select CRC32 @@ -64,13 +62,7 @@ config DRM_I915_FORCE_PROBE Use "*" to force probe the driver for all known devices. config DRM_I915_BACKLIGHT - tristate "Control backlight support" - depends on DRM_I915 - default DRM_I915 - select BACKLIGHT_CLASS_DEVICE - help - Say Y here if you want to control the backlight of your display - (e.g. a laptop panel). + def_tristate DRM_I915 config DRM_I915_CAPTURE_ERROR bool "Enable capturing GPU state following a hang"