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authorLuca Tettamanti <kronos.it@gmail.com>2012-07-30 21:20:35 +0200
committerAlex Deucher <alexander.deucher@amd.com>2012-09-20 19:10:36 +0200
commitfda4b25c55a59ba12378e4b9e4553f6ea57d802d (patch)
tree931f98eee8fb7f2ebb90e2bd689c7ff34b0b2a4a /drivers/gpu/drm/radeon/radeon_acpi.h
parentdrm/radeon: implement wrapper for GET_SYSTEM_PARAMS (diff)
downloadlinux-fda4b25c55a59ba12378e4b9e4553f6ea57d802d.tar.xz
linux-fda4b25c55a59ba12378e4b9e4553f6ea57d802d.zip
drm/radeon: implement handler for ACPI event
Set up an handler for ACPI events and respond to brightness change requests from the system BIOS. v2: fix notification when using device-specific command codes (tested by Pali Rohár <pali.rohar@gmail.com>); cache the encoder controlling the backlight during the initialization to avoid searching it every time (suggested by Alex Deucher). v3: whitespace fixes (Alex Deucher). Signed-off-by: Luca Tettamanti <kronos.it@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_acpi.h')
-rw-r--r--drivers/gpu/drm/radeon/radeon_acpi.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_acpi.h b/drivers/gpu/drm/radeon/radeon_acpi.h
index 642aa4719454..be4af76f213d 100644
--- a/drivers/gpu/drm/radeon/radeon_acpi.h
+++ b/drivers/gpu/drm/radeon/radeon_acpi.h
@@ -24,6 +24,12 @@
#ifndef RADEON_ACPI_H
#define RADEON_ACPI_H
+struct radeon_device;
+struct acpi_bus_event;
+
+int radeon_atif_handler(struct radeon_device *rdev,
+ struct acpi_bus_event *event);
+
/* AMD hw uses four ACPI control methods:
* 1. ATIF
* ARG0: (ACPI_INTEGER) function code