linux/drivers/video/fbdev/via/lcd.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.

 */
#include <linux/via-core.h>
#include <linux/via_i2c.h>
#include "global.h"

#define viafb_compact_res(x, y) …

/* CLE266 Software Power Sequence */
/* {Mask}, {Data}, {Delay} */
static const int PowerSequenceOn[3][3] = …;
static const int PowerSequenceOff[3][3] = …;

static struct _lcd_scaling_factor lcd_scaling_factor = …;
static struct _lcd_scaling_factor lcd_scaling_factor_CLE = …;

static bool lvds_identify_integratedlvds(void);
static void fp_id_to_vindex(int panel_id);
static int lvds_register_read(int index);
static void load_lcd_scaling(int set_hres, int set_vres, int panel_hres,
		      int panel_vres);
static void lcd_patch_skew_dvp0(struct lvds_setting_information
			 *plvds_setting_info,
			 struct lvds_chip_information *plvds_chip_info);
static void lcd_patch_skew_dvp1(struct lvds_setting_information
			 *plvds_setting_info,
			 struct lvds_chip_information *plvds_chip_info);
static void lcd_patch_skew(struct lvds_setting_information
	*plvds_setting_info, struct lvds_chip_information *plvds_chip_info);

static void integrated_lvds_disable(struct lvds_setting_information
			     *plvds_setting_info,
			     struct lvds_chip_information *plvds_chip_info);
static void integrated_lvds_enable(struct lvds_setting_information
			    *plvds_setting_info,
			    struct lvds_chip_information *plvds_chip_info);
static void lcd_powersequence_off(void);
static void lcd_powersequence_on(void);
static void fill_lcd_format(void);
static void check_diport_of_integrated_lvds(
	struct lvds_chip_information *plvds_chip_info,
				     struct lvds_setting_information
				     *plvds_setting_info);

static inline bool check_lvds_chip(int device_id_subaddr, int device_id)
{ … }

void viafb_init_lcd_size(void)
{ … }

static bool lvds_identify_integratedlvds(void)
{ … }

bool viafb_lvds_trasmitter_identify(void)
{ … }

static void fp_id_to_vindex(int panel_id)
{ … }

static int lvds_register_read(int index)
{ … }

static void load_lcd_scaling(int set_hres, int set_vres, int panel_hres,
		      int panel_vres)
{ … }

static void via_pitch_alignment_patch_lcd(int iga_path, int hres, int bpp)
{ … }
static void lcd_patch_skew_dvp0(struct lvds_setting_information
			 *plvds_setting_info,
			 struct lvds_chip_information *plvds_chip_info)
{ … }
static void lcd_patch_skew_dvp1(struct lvds_setting_information
			 *plvds_setting_info,
			 struct lvds_chip_information *plvds_chip_info)
{ … }
static void lcd_patch_skew(struct lvds_setting_information
	*plvds_setting_info, struct lvds_chip_information *plvds_chip_info)
{ … }

/* LCD Set Mode */
void viafb_lcd_set_mode(const struct fb_var_screeninfo *var, u16 cxres,
	u16 cyres, struct lvds_setting_information *plvds_setting_info,
	struct lvds_chip_information *plvds_chip_info)
{ … }

static void integrated_lvds_disable(struct lvds_setting_information
			     *plvds_setting_info,
			     struct lvds_chip_information *plvds_chip_info)
{ … }

static void integrated_lvds_enable(struct lvds_setting_information
			    *plvds_setting_info,
			    struct lvds_chip_information *plvds_chip_info)
{ … }

void viafb_lcd_disable(void)
{ … }

static void set_lcd_output_path(int set_iga, int output_interface)
{ … }

void viafb_lcd_enable(void)
{ … }

static void lcd_powersequence_off(void)
{ … }

static void lcd_powersequence_on(void)
{ … }

static void fill_lcd_format(void)
{ … }

static void check_diport_of_integrated_lvds(
	struct lvds_chip_information *plvds_chip_info,
				     struct lvds_setting_information
				     *plvds_setting_info)
{ … }

void viafb_init_lvds_output_interface(struct lvds_chip_information
				*plvds_chip_info,
				struct lvds_setting_information
				*plvds_setting_info)
{ … }

bool viafb_lcd_get_mobile_state(bool *mobile)
{ … }