linux/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c

/*
 * Copyright 2007-8 Advanced Micro Devices, Inc.
 * Copyright 2008 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Dave Airlie
 *          Alex Deucher
 */

#include <drm/amdgpu_drm.h>
#include <drm/drm_fixed.h>
#include "amdgpu.h"
#include "atom.h"
#include "atom-bits.h"
#include "atombios_encoders.h"
#include "atombios_crtc.h"
#include "amdgpu_atombios.h"
#include "amdgpu_pll.h"
#include "amdgpu_connectors.h"

void amdgpu_atombios_crtc_overscan_setup(struct drm_crtc *crtc,
				  struct drm_display_mode *mode,
				  struct drm_display_mode *adjusted_mode)
{ … }

void amdgpu_atombios_crtc_scaler_setup(struct drm_crtc *crtc)
{ … }

void amdgpu_atombios_crtc_lock(struct drm_crtc *crtc, int lock)
{ … }

void amdgpu_atombios_crtc_enable(struct drm_crtc *crtc, int state)
{ … }

void amdgpu_atombios_crtc_blank(struct drm_crtc *crtc, int state)
{ … }

void amdgpu_atombios_crtc_powergate(struct drm_crtc *crtc, int state)
{ … }

void amdgpu_atombios_crtc_powergate_init(struct amdgpu_device *adev)
{ … }

void amdgpu_atombios_crtc_set_dtd_timing(struct drm_crtc *crtc,
				  struct drm_display_mode *mode)
{ … }

atom_enable_ss;

static void amdgpu_atombios_crtc_program_ss(struct amdgpu_device *adev,
				     int enable,
				     int pll_id,
				     int crtc_id,
				     struct amdgpu_atom_ss *ss)
{ … }

adjust_pixel_clock;

static u32 amdgpu_atombios_crtc_adjust_pll(struct drm_crtc *crtc,
				    struct drm_display_mode *mode)
{ … }

set_pixel_clock;

/* on DCE5, make sure the voltage is high enough to support the
 * required disp clk.
 */
void amdgpu_atombios_crtc_set_disp_eng_pll(struct amdgpu_device *adev,
					   u32 dispclk)
{ … }

set_dce_clock;

u32 amdgpu_atombios_crtc_set_dce_clock(struct amdgpu_device *adev,
				       u32 freq, u8 clk_type, u8 clk_src)
{ … }

static bool is_pixel_clock_source_from_pll(u32 encoder_mode, int pll_id)
{ … }

void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc,
				      u32 crtc_id,
				      int pll_id,
				      u32 encoder_mode,
				      u32 encoder_id,
				      u32 clock,
				      u32 ref_div,
				      u32 fb_div,
				      u32 frac_fb_div,
				      u32 post_div,
				      int bpc,
				      bool ss_enabled,
				      struct amdgpu_atom_ss *ss)
{ … }

int amdgpu_atombios_crtc_prepare_pll(struct drm_crtc *crtc,
			      struct drm_display_mode *mode)
{ … }

void amdgpu_atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
{ … }