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b5e3241316
Save/restore the backlight level scratch register in S3/S4 so the
backlight level comes back at the previously requested level.
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=199047
Fixes: 4ec6ecf48c (drm/amdgpu: drop scratch regs save and restore from S3/S4 handling)
Acked-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
78 lines
3.3 KiB
C
78 lines
3.3 KiB
C
/*
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* Copyright 2014 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef __ATOMBIOS_ENCODER_H__
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#define __ATOMBIOS_ENCODER_H__
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u8
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amdgpu_atombios_encoder_get_backlight_level_from_reg(struct amdgpu_device *adev);
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void
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amdgpu_atombios_encoder_set_backlight_level_to_reg(struct amdgpu_device *adev,
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u8 backlight_level);
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u8
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amdgpu_atombios_encoder_get_backlight_level(struct amdgpu_encoder *amdgpu_encoder);
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void
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amdgpu_atombios_encoder_set_backlight_level(struct amdgpu_encoder *amdgpu_encoder,
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u8 level);
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void amdgpu_atombios_encoder_init_backlight(struct amdgpu_encoder *amdgpu_encoder,
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struct drm_connector *drm_connector);
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void
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amdgpu_atombios_encoder_fini_backlight(struct amdgpu_encoder *amdgpu_encoder);
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bool amdgpu_atombios_encoder_is_digital(struct drm_encoder *encoder);
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bool amdgpu_atombios_encoder_mode_fixup(struct drm_encoder *encoder,
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const struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode);
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int amdgpu_atombios_encoder_get_encoder_mode(struct drm_encoder *encoder);
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void
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amdgpu_atombios_encoder_setup_dig_encoder(struct drm_encoder *encoder,
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int action, int panel_mode);
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void
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amdgpu_atombios_encoder_setup_dig_transmitter(struct drm_encoder *encoder, int action,
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uint8_t lane_num, uint8_t lane_set);
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bool
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amdgpu_atombios_encoder_set_edp_panel_power(struct drm_connector *connector,
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int action);
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void
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amdgpu_atombios_encoder_dpms(struct drm_encoder *encoder, int mode);
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void
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amdgpu_atombios_encoder_set_crtc_source(struct drm_encoder *encoder);
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void
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amdgpu_atombios_encoder_init_dig(struct amdgpu_device *adev);
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enum drm_connector_status
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amdgpu_atombios_encoder_dac_detect(struct drm_encoder *encoder,
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struct drm_connector *connector);
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enum drm_connector_status
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amdgpu_atombios_encoder_dig_detect(struct drm_encoder *encoder,
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struct drm_connector *connector);
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void
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amdgpu_atombios_encoder_setup_ext_encoder_ddc(struct drm_encoder *encoder);
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void
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amdgpu_atombios_encoder_set_bios_scratch_regs(struct drm_connector *connector,
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struct drm_encoder *encoder,
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bool connected);
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struct amdgpu_encoder_atom_dig *
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amdgpu_atombios_encoder_get_lcd_info(struct amdgpu_encoder *encoder);
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struct amdgpu_encoder_atom_dig *
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amdgpu_atombios_encoder_get_dig_info(struct amdgpu_encoder *amdgpu_encoder);
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#endif
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