linux/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c, branch v5.8

amdgpu_acpi: add backlight control for the DC case

2020-05-05T17:12:55Z

This uses backlight_device_set_brightness() to set the brightness level requested via ATIF. Signed-off-by: Andriy Gapon Signed-off-by: Alex Deucher

drm/amd: drop use of drmP.h in amdgpu/amdgpu*

2019-06-10T21:02:48Z

Drop use of drmP.h in all files named amdgpu* in drm/amd/amdgpu/ Fix fallout. Signed-off-by: Sam Ravnborg Reviewed-by: Alex Deucher Cc: "Christian König" Cc: "David (ChunMing) Zhou" Cc: David Airlie Cc: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20190609220757.10862-10-sam@ravnborg.org

drm/amdgpu: remove ATPX_DGPU_REQ_POWER_FOR_DISPLAYS check when hotplug-in

2019-05-06T14:36:23Z

In amdgpu_atif_handler, when hotplug event received, remove ATPX_DGPU_REQ_POWER_FOR_DISPLAYS check. This bit's check will cause missing system resume. Signed-off-by: Aaron Liu Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/amdgpu/acpi: NULL check before some freeing functions is not needed

2018-12-05T22:50:26Z

kfree(NULL) is safe, so removes NULL check before freeing the mem. This patch also fix the ifnullfree.cocci warnings. Reviewed-by: Lyude Paul Signed-off-by: Wen Yang CC: Alex Deucher CC: christian.koenig@amd.com CC: "David (ChunMing) Zhou" CC: David Airlie (maintainer:DRM DRIVERS) CC: Lyude Paul CC: Rex Zhu CC: Jim Qu CC: amd-gfx@lists.freedesktop.org CC: dri-devel@lists.freedesktop.org Signed-off-by: Alex Deucher

drm/amd: Query and use ACPI backlight caps

2018-11-26T20:54:39Z

ACPI ATIF has a function called query backlight transfer characteristics. Among the information returned by this function is the minimum and maximum input signals for the backlight Call that function on ACPI init. When DM backlight device is updated, copy over the backlight caps into DM, but only once. Use the backlight caps in the backlight-to-dc calculation Signed-off-by: David Francis Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd: update ATIF functions in AMD ACPI header

2018-11-26T20:54:38Z

The ACPI interface in AMD was a few years out of date and contained some unused and deprecated functions Remove functions: Select Active Displays, Get Lid State, Get TV Standard, Set TV Standard, Get Panel Expansion Mode, Set Panel Expansion Mode, Get Graphics Device Types Add functions: Query Backlight Transfer Characteristics, Ready To Undock Notification Changed functions: Get System Parameters, Get System BIOS Requests All changes are right from the standard ATI ACPI Control Methods V0.44 Signed-off-by: David Francis Reviewed-by: Harry Wentland Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Suppress keypresses from ACPI_VIDEO events

2018-10-10T19:49:41Z

Currently we return NOTIFY_DONE for any event which we don't think is ours. However, many laptops will send more then just an ATIF event and will also send an ACPI_VIDEO_NOTIFY_PROBE event as well. Since we don't check for this, we return NOTIFY_DONE which causes a keypress for the ACPI event to be propogated to userspace. This is the equivalent of someone pressing the display key on a laptop every time there's a hotplug event. So, check for ACPI_VIDEO_NOTIFY_PROBE events and suppress keypresses from them. Signed-off-by: Lyude Paul Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher

drm/amdgpu: move display definitions into amdgpu_display header

2018-08-27T16:10:04Z

Demangle amdgpu.h. Signed-off-by: Huang Rui Acked-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu/acpi: skip backlight events for DC

2018-07-20T19:24:41Z

No change in behavior, just bail sooner. Reviewed-by: Jim Qu Signed-off-by: Alex Deucher

drm/amdgpu/apci: don't call sbios request function if it's not supported

2018-07-20T19:24:35Z

Check the supported functions mask before calling the bios requests method. Reviewed-by: Jim Qu Signed-off-by: Alex Deucher