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drm/radeon: implement handler for ACPI event

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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>
This commit is contained in:
Luca Tettamanti
2012-07-30 21:20:35 +02:00
committed by Alex Deucher
parent ce3cf821a3
commit fda4b25c55
7 changed files with 152 additions and 11 deletions
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2
drivers/gpu/drm/radeon/radeon_mode.h
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@@ -698,6 +698,8 @@ void radeon_panel_mode_fixup(struct drm_encoder *encoder,
struct drm_display_mode *adjusted_mode);
void atom_rv515_force_tv_scaler(struct radeon_device *rdev, struct radeon_crtc *radeon_crtc);
void atombios_set_panel_brightness(struct radeon_encoder *radeon_encoder);
/* legacy tv */
void radeon_legacy_tv_adjust_crtc_reg(struct drm_encoder *encoder,
uint32_t *h_total_disp, uint32_t *h_sync_strt_wid,