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Immutable backlight-detect-refactor branch between acpi, drm-* and pdx86

Browse source 
Tag (immutable branch) with v6.0-rc1 + the (acpi/x86) backlight
 detect refactor work. For merging into the acpi, drm-* and pdx86
 subsystems.
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Merge tag 'backlight-detect-refactor-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 into drm-misc-next

Immutable backlight-detect-refactor branch between acpi, drm-* and pdx86

Tag (immutable branch) with v6.0-rc1 + the (acpi/x86) backlight
detect refactor work. For merging into the acpi, drm-* and pdx86
subsystems.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

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# gpg: Signature made Mon 05 Sep 2022 09:25:44 AM IST
# gpg:                using RSA key BAF03B5D2718411A5E9E177E92EC4779440327DC
# gpg:                issuer "hdegoede@redhat.com"
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From: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/261afe3d-7790-e945-adf6-a2c96c9b1eff@redhat.com
This commit is contained in:
Maxime Ripard 2022-09-14 12:27:09 +01:00
commit 3f1a3a28e9
32 changed files with 594 additions and 513 deletions
Download patch file Download diff file Expand all files Collapse all files

76
include/linux/platform_data/x86/nvidia-wmi-ec-backlight.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
*/
#ifndef __PLATFORM_DATA_X86_NVIDIA_WMI_EC_BACKLIGHT_H
#define __PLATFORM_DATA_X86_NVIDIA_WMI_EC_BACKLIGHT_H
#define WMI_BRIGHTNESS_GUID "603E9613-EF25-4338-A3D0-C46177516DB7"
/**
* enum wmi_brightness_method - WMI method IDs
* @WMI_BRIGHTNESS_METHOD_LEVEL: Get/Set EC brightness level status
* @WMI_BRIGHTNESS_METHOD_SOURCE: Get/Set EC Brightness Source
*/
enum wmi_brightness_method {
WMI_BRIGHTNESS_METHOD_LEVEL = 1,
WMI_BRIGHTNESS_METHOD_SOURCE = 2,
WMI_BRIGHTNESS_METHOD_MAX
};
/**
* enum wmi_brightness_mode - Operation mode for WMI-wrapped method
* @WMI_BRIGHTNESS_MODE_GET: Get the current brightness level/source.
* @WMI_BRIGHTNESS_MODE_SET: Set the brightness level.
* @WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL: Get the maximum brightness level. This
* is only valid when the WMI method is
* %WMI_BRIGHTNESS_METHOD_LEVEL.
*/
enum wmi_brightness_mode {
WMI_BRIGHTNESS_MODE_GET = 0,
WMI_BRIGHTNESS_MODE_SET = 1,
WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL = 2,
WMI_BRIGHTNESS_MODE_MAX
};
/**
* enum wmi_brightness_source - Backlight brightness control source selection
* @WMI_BRIGHTNESS_SOURCE_GPU: Backlight brightness is controlled by the GPU.
* @WMI_BRIGHTNESS_SOURCE_EC: Backlight brightness is controlled by the
* system's Embedded Controller (EC).
* @WMI_BRIGHTNESS_SOURCE_AUX: Backlight brightness is controlled over the
* DisplayPort AUX channel.
*/
enum wmi_brightness_source {
WMI_BRIGHTNESS_SOURCE_GPU = 1,
WMI_BRIGHTNESS_SOURCE_EC = 2,
WMI_BRIGHTNESS_SOURCE_AUX = 3,
WMI_BRIGHTNESS_SOURCE_MAX
};
/**
* struct wmi_brightness_args - arguments for the WMI-wrapped ACPI method
* @mode: Pass in an &enum wmi_brightness_mode value to select between
* getting or setting a value.
* @val: In parameter for value to set when using %WMI_BRIGHTNESS_MODE_SET
* mode. Not used in conjunction with %WMI_BRIGHTNESS_MODE_GET or
* %WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL mode.
* @ret: Out parameter returning retrieved value when operating in
* %WMI_BRIGHTNESS_MODE_GET or %WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL
* mode. Not used in %WMI_BRIGHTNESS_MODE_SET mode.
* @ignored: Padding; not used. The ACPI method expects a 24 byte params struct.
*
* This is the parameters structure for the WmiBrightnessNotify ACPI method as
* wrapped by WMI. The value passed in to @val or returned by @ret will be a
* brightness value when the WMI method ID is %WMI_BRIGHTNESS_METHOD_LEVEL, or
* an &enum wmi_brightness_source value with %WMI_BRIGHTNESS_METHOD_SOURCE.
*/
struct wmi_brightness_args {
u32 mode;
u32 val;
u32 ret;
u32 ignored[3];
};
#endif