drivers/video/msm/mdss/mdss_panel.h - kernel/msm - Gitiles

 /* Copyright (c) 2008-2013, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  */

 #ifndef MDSS_PANEL_H
 #define MDSS_PANEL_H

 #include <linux/platform_device.h>
 #include <linux/types.h>

 /* panel id type */
 struct panel_id {
 	u16 id;
 	u16 type;
 };

 #define DEFAULT_FRAME_RATE	60
 #define MDSS_DSI_RST_SEQ_LEN	10

 /* panel type list */
 #define NO_PANEL		0xffff	/* No Panel */
 #define MDDI_PANEL		1	/* MDDI */
 #define EBI2_PANEL		2	/* EBI2 */
 #define LCDC_PANEL		3	/* internal LCDC type */
 #define EXT_MDDI_PANEL		4	/* Ext.MDDI */
 #define TV_PANEL		5	/* TV */
 #define HDMI_PANEL		6	/* HDMI TV */
 #define DTV_PANEL		7	/* DTV */
 #define MIPI_VIDEO_PANEL	8	/* MIPI */
 #define MIPI_CMD_PANEL		9	/* MIPI */
 #define WRITEBACK_PANEL		10	/* Wifi display */
 #define LVDS_PANEL		11	/* LVDS */
 #define EDP_PANEL		12	/* LVDS */

 /* panel class */
 enum {
 	DISPLAY_LCD = 0,	/* lcd = ebi2/mddi */
 	DISPLAY_LCDC,		/* lcdc */
 	DISPLAY_TV,		/* TV Out */
 	DISPLAY_EXT_MDDI,	/* External MDDI */
 	DISPLAY_WRITEBACK,
 };

 /* panel device locaiton */
 enum {
 	DISPLAY_1 = 0,		/* attached as first device */
 	DISPLAY_2,		/* attached on second device */
 	DISPLAY_3,              /* attached on third writeback device */
 	MAX_PHYS_TARGET_NUM,
 };

 enum {
 	MDSS_PANEL_INTF_INVALID = -1,
 	MDSS_PANEL_INTF_DSI,
 	MDSS_PANEL_INTF_EDP,
 	MDSS_PANEL_INTF_HDMI,
 };

 enum {
 	MODE_GPIO_NOT_VALID = 0,
 	MODE_GPIO_HIGH,
 	MODE_GPIO_LOW,
 };

 #define MDSS_MAX_PANEL_LEN      256
 #define MDSS_INTF_MAX_NAME_LEN 5
 struct mdss_panel_intf {
 	char name[MDSS_INTF_MAX_NAME_LEN];
 	int  type;
 };

 struct mdss_panel_cfg {
 	char arg_cfg[MDSS_MAX_PANEL_LEN + 1];
 	int  pan_intf;
 	bool lk_cfg;
 	bool init_done;
 };

 /**
  * enum mdss_intf_events - Different events generated by MDP core
  *
  * @MDSS_EVENT_RESET:		MDP control path is being (re)initialized.
  * @MDSS_EVENT_UNBLANK:		Sent before first frame update from MDP is
  *				sent to panel.
  * @MDSS_EVENT_PANEL_ON:	After first frame update from MDP.
  * @MDSS_EVENT_BLANK:		MDP has no contents to display only blank screen
  *				is shown in panel. Sent before panel off.
  * @MDSS_EVENT_PANEL_OFF:	MDP has suspended frame updates, panel should be
  *				completely shutdown after this call.
  * @MDSS_EVENT_CLOSE:		MDP has tore down entire session.
  * @MDSS_EVENT_SUSPEND:		Propagation of power suspend event.
  * @MDSS_EVENT_RESUME:		Propagation of power resume event.
  * @MDSS_EVENT_CHECK_PARAMS:	Event generated when a panel reconfiguration is
  *				requested including when resolution changes.
  *				The event handler receives pointer to
  *				struct mdss_panel_info and should return one of:
  *				 - negative if the configuration is invalid
  *				 - 0 if there is no panel reconfig needed
  *				 - 1 if reconfig is needed to take effect
  * @MDSS_EVENT_CONT_SPLASH_BEGIN: Special event used to handle transition of
  *				display state from boot loader to panel driver.
  *				The event handler will disable the panel.
  * @MDSS_EVENT_CONT_SPLASH_FINISH: Special event used to handle transition of
  *				display state from boot loader to panel driver.
  *				The event handler will enable the panel and
  *				vote for the display clocks.
  * @MDSS_EVENT_PANEL_UPDATE_FPS: Event to update the frame rate of the panel.
  * @MDSS_EVENT_FB_REGISTERED:	Called after fb dev driver has been registered,
  *				panel driver gets ptr to struct fb_info which
  *				holds fb dev information.
  * @MDSS_EVENT_PANEL_CLK_CTRL:	panel clock control
 				 - 0 clock disable
 				 - 1 clock enable
  * @MDSS_EVENT_DSI_CMDLIST_KOFF: kickoff sending dcs command from command list
  * @MDSS_EVENT_ENABLE_PARTIAL_UPDATE: Event to update ROI of the panel.
  */
 enum mdss_intf_events {
 	MDSS_EVENT_RESET = 1,
 	MDSS_EVENT_UNBLANK,
 	MDSS_EVENT_PANEL_ON,
 	MDSS_EVENT_BLANK,
 	MDSS_EVENT_PANEL_OFF,
 	MDSS_EVENT_CLOSE,
 	MDSS_EVENT_SUSPEND,
 	MDSS_EVENT_RESUME,
 	MDSS_EVENT_CHECK_PARAMS,
 	MDSS_EVENT_CONT_SPLASH_BEGIN,
 	MDSS_EVENT_CONT_SPLASH_FINISH,
 	MDSS_EVENT_PANEL_UPDATE_FPS,
 	MDSS_EVENT_FB_REGISTERED,
 	MDSS_EVENT_PANEL_CLK_CTRL,
 	MDSS_EVENT_DSI_CMDLIST_KOFF,
 	MDSS_EVENT_ENABLE_PARTIAL_UPDATE,
 };

 struct lcd_panel_info {
 	u32 h_back_porch;
 	u32 h_front_porch;
 	u32 h_pulse_width;
 	u32 v_back_porch;
 	u32 v_front_porch;
 	u32 v_pulse_width;
 	u32 border_clr;
 	u32 underflow_clr;
 	u32 hsync_skew;
 	/* Pad width */
 	u32 xres_pad;
 	/* Pad height */
 	u32 yres_pad;
 };


 /* DSI PHY configuration */
 struct mdss_dsi_phy_ctrl {
 	uint32_t regulator[7];
 	uint32_t timing[12];
 	uint32_t ctrl[4];
 	uint32_t strength[2];
 	char bistctrl[6];
 	uint32_t pll[21];
 	char lanecfg[45];
 };

 struct mipi_panel_info {
 	char mode;		/* video/cmd */
 	char interleave_mode;
 	char crc_check;
 	char ecc_check;
 	char dst_format;	/* shared by video and command */
 	char data_lane0;
 	char data_lane1;
 	char data_lane2;
 	char data_lane3;
 	char dlane_swap;	/* data lane swap */
 	char rgb_swap;
 	char b_sel;
 	char g_sel;
 	char r_sel;
 	char rx_eot_ignore;
 	char tx_eot_append;
 	char t_clk_post; /* 0xc0, DSI_CLKOUT_TIMING_CTRL */
 	char t_clk_pre;  /* 0xc0, DSI_CLKOUT_TIMING_CTRL */
 	char vc;	/* virtual channel */
 	struct mdss_dsi_phy_ctrl dsi_phy_db;
 	/* video mode */
 	char pulse_mode_hsa_he;
 	char hfp_power_stop;
 	char hbp_power_stop;
 	char hsa_power_stop;
 	char eof_bllp_power_stop;
 	char bllp_power_stop;
 	char traffic_mode;
 	char frame_rate;
 	/* command mode */
 	char interleave_max;
 	char insert_dcs_cmd;
 	char wr_mem_continue;
 	char wr_mem_start;
 	char te_sel;
 	char stream;	/* 0 or 1 */
 	char mdp_trigger;
 	char dma_trigger;
 	u32 dsi_pclk_rate;
 	/* The packet-size should not bet changed */
 	char no_max_pkt_size;
 	/* Clock required during LP commands */
 	char force_clk_lane_hs;

 	char vsync_enable;
 	char hw_vsync_mode;
 };

 enum dynamic_fps_update {
 	DFPS_SUSPEND_RESUME_MODE,
 	DFPS_IMMEDIATE_CLK_UPDATE_MODE,
 };

 enum lvds_mode {
 	LVDS_SINGLE_CHANNEL_MODE,
 	LVDS_DUAL_CHANNEL_MODE,
 };

 struct lvds_panel_info {
 	enum lvds_mode channel_mode;
 	/* Channel swap in dual mode */
 	char channel_swap;
 };

 struct fbc_panel_info {
 	u32 enabled;
 	u32 target_bpp;
 	u32 comp_mode;
 	u32 qerr_enable;
 	u32 cd_bias;
 	u32 pat_enable;
 	u32 vlc_enable;
 	u32 bflc_enable;

 	u32 line_x_budget;
 	u32 block_x_budget;
 	u32 block_budget;

 	u32 lossless_mode_thd;
 	u32 lossy_mode_thd;
 	u32 lossy_rgb_thd;
 	u32 lossy_mode_idx;
 };

 struct mdss_panel_info {
 	u32 xres;
 	u32 yres;
 	u32 physical_width;
 	u32 physical_height;
 	u32 bpp;
 	u32 type;
 	u32 wait_cycle;
 	u32 pdest;
 	u32 bl_max;
 	u32 bl_min;
 	u32 fb_num;
 	u32 clk_rate;
 	u32 clk_min;
 	u32 clk_max;
 	u32 frame_count;
 	u32 is_3d_panel;
 	u32 out_format;
 	u32 rst_seq[MDSS_DSI_RST_SEQ_LEN];
 	u32 rst_seq_len;
 	u32 vic; /* video identification code */
 	u32 roi_x;
 	u32 roi_y;
 	u32 roi_w;
 	u32 roi_h;
 	int bklt_ctrl;	/* backlight ctrl */
 	int pwm_pmic_gpio;
 	int pwm_lpg_chan;
 	int pwm_period;
 	u32 mode_gpio_state;
 	bool dynamic_fps;
 	char dfps_update;
 	int new_fps;

 	u32 cont_splash_enabled;
 	u32 partial_update_enabled;
 	struct ion_handle *splash_ihdl;
 	u32 panel_power_on;

 	struct lcd_panel_info lcdc;
 	struct fbc_panel_info fbc;
 	struct mipi_panel_info mipi;
 	struct lvds_panel_info lvds;
 };

 struct mdss_panel_data {
 	struct mdss_panel_info panel_info;
 	void (*set_backlight) (struct mdss_panel_data *pdata, u32 bl_level);
 	unsigned char *mmss_cc_base;

 	/**
 	 * event_handler() - callback handler for MDP core events
 	 * @pdata:	Pointer refering to the panel struct associated to this
 	 *		event. Can be used to retrieve panel info.
 	 * @e:		Event being generated, see enum mdss_intf_events
 	 * @arg:	Optional argument to pass some info from some events.
 	 *
 	 * Used to register handler to be used to propagate different events
 	 * happening in MDP core driver. Panel driver can listen for any of
 	 * these events to perform appropriate actions for panel initialization
 	 * and teardown.
 	 */
 	int (*event_handler) (struct mdss_panel_data *pdata, int e, void *arg);

 	struct mdss_panel_data *next;
 };

 /**
  * mdss_get_panel_framerate() - get panel frame rate based on panel information
  * @panel_info:	Pointer to panel info containing all panel information
  */
 static inline u32 mdss_panel_get_framerate(struct mdss_panel_info *panel_info)
 {
 	u32 frame_rate, pixel_total;

 	if (panel_info == NULL)
 		return DEFAULT_FRAME_RATE;

 	switch (panel_info->type) {
 	case MIPI_VIDEO_PANEL:
 	case MIPI_CMD_PANEL:
 		frame_rate = panel_info->mipi.frame_rate;
 		break;
 	case WRITEBACK_PANEL:
 		frame_rate = DEFAULT_FRAME_RATE;
 		break;
 	default:
 		pixel_total = (panel_info->lcdc.h_back_porch +
 			  panel_info->lcdc.h_front_porch +
 			  panel_info->lcdc.h_pulse_width +
 			  panel_info->xres) *
 			 (panel_info->lcdc.v_back_porch +
 			  panel_info->lcdc.v_front_porch +
 			  panel_info->lcdc.v_pulse_width +
 			  panel_info->yres);
 		if (pixel_total)
 			frame_rate = panel_info->clk_rate / pixel_total;
 		else
 			frame_rate = DEFAULT_FRAME_RATE;

 		break;
 	}
 	return frame_rate;
 }

 /*
  * mdss_panel_get_vtotal() - return panel vertical height
  * @pinfo:	Pointer to panel info containing all panel information
  *
  * Returns the total height of the panel including any blanking regions
  * which are not visible to user but used to calculate panel pixel clock.
  */
 static inline int mdss_panel_get_vtotal(struct mdss_panel_info *pinfo)
 {
 	return pinfo->yres + pinfo->lcdc.v_back_porch +
 			pinfo->lcdc.v_front_porch +
 			pinfo->lcdc.v_pulse_width;
 }

 /*
  * mdss_panel_get_htotal() - return panel horizontal width
  * @pinfo:	Pointer to panel info containing all panel information
  *
  * Returns the total width of the panel including any blanking regions
  * which are not visible to user but used for calculations.
  */
 static inline int mdss_panel_get_htotal(struct mdss_panel_info *pinfo)
 {
 	return pinfo->xres + pinfo->lcdc.h_back_porch +
 			pinfo->lcdc.h_front_porch +
 			pinfo->lcdc.h_pulse_width;
 }

 int mdss_register_panel(struct platform_device *pdev,
 	struct mdss_panel_data *pdata);

 /**
  * mdss_panel_intf_type: - checks if a given intf type is primary
  * @intf_val: panel interface type of the individual controller
  *
  * Individual controller queries with MDP to check if it is
  * configured as the primary interface.
  *
  * returns a pointer to the configured structure mdss_panel_cfg
  * to the controller that's configured as the primary panel interface.
  * returns NULL on error or if @intf_val is not the configured
  * controller.
  */
 struct mdss_panel_cfg *mdss_panel_intf_type(int intf_val);

 /**
  * mdss_panel_get_boot_cfg() - checks if bootloader config present
  *
  * Function returns true if bootloader has configured the parameters
  * for primary controller and panel config data.
  *
  * returns true if bootloader configured, else false
  */
 int mdss_panel_get_boot_cfg(void);

 /**
  * mdss_is_ready() - checks if mdss is probed and ready
  *
  * Checks if mdss resources have been initialized
  *
  * returns true if mdss is ready, else returns false.
  */
 bool mdss_is_ready(void);
 #endif /* MDSS_PANEL_H */
	/* Copyright (c) 2008-2013, The Linux Foundation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 and
	* only version 2 as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	*/

	#ifndef MDSS_PANEL_H
	#define MDSS_PANEL_H

	#include <linux/platform_device.h>
	#include <linux/types.h>

	/* panel id type */
	struct panel_id {
	u16 id;
	u16 type;
	};

	#define DEFAULT_FRAME_RATE 60
	#define MDSS_DSI_RST_SEQ_LEN 10

	/* panel type list */
	#define NO_PANEL 0xffff /* No Panel */
	#define MDDI_PANEL 1 /* MDDI */
	#define EBI2_PANEL 2 /* EBI2 */
	#define LCDC_PANEL 3 /* internal LCDC type */
	#define EXT_MDDI_PANEL 4 /* Ext.MDDI */
	#define TV_PANEL 5 /* TV */
	#define HDMI_PANEL 6 /* HDMI TV */
	#define DTV_PANEL 7 /* DTV */
	#define MIPI_VIDEO_PANEL 8 /* MIPI */
	#define MIPI_CMD_PANEL 9 /* MIPI */
	#define WRITEBACK_PANEL 10 /* Wifi display */
	#define LVDS_PANEL 11 /* LVDS */
	#define EDP_PANEL 12 /* LVDS */

	/* panel class */
	enum {
	DISPLAY_LCD = 0, /* lcd = ebi2/mddi */
	DISPLAY_LCDC, /* lcdc */
	DISPLAY_TV, /* TV Out */
	DISPLAY_EXT_MDDI, /* External MDDI */
	DISPLAY_WRITEBACK,
	};

	/* panel device locaiton */
	enum {
	DISPLAY_1 = 0, /* attached as first device */
	DISPLAY_2, /* attached on second device */
	DISPLAY_3, /* attached on third writeback device */
	MAX_PHYS_TARGET_NUM,
	};

	enum {
	MDSS_PANEL_INTF_INVALID = -1,
	MDSS_PANEL_INTF_DSI,
	MDSS_PANEL_INTF_EDP,
	MDSS_PANEL_INTF_HDMI,
	};

	enum {
	MODE_GPIO_NOT_VALID = 0,
	MODE_GPIO_HIGH,
	MODE_GPIO_LOW,
	};

	#define MDSS_MAX_PANEL_LEN 256
	#define MDSS_INTF_MAX_NAME_LEN 5
	struct mdss_panel_intf {
	char name[MDSS_INTF_MAX_NAME_LEN];
	int type;
	};

	struct mdss_panel_cfg {
	char arg_cfg[MDSS_MAX_PANEL_LEN + 1];
	int pan_intf;
	bool lk_cfg;
	bool init_done;
	};

	/**
	* enum mdss_intf_events - Different events generated by MDP core
	*
	* @MDSS_EVENT_RESET: MDP control path is being (re)initialized.
	* @MDSS_EVENT_UNBLANK: Sent before first frame update from MDP is
	* sent to panel.
	* @MDSS_EVENT_PANEL_ON: After first frame update from MDP.
	* @MDSS_EVENT_BLANK: MDP has no contents to display only blank screen
	* is shown in panel. Sent before panel off.
	* @MDSS_EVENT_PANEL_OFF: MDP has suspended frame updates, panel should be
	* completely shutdown after this call.
	* @MDSS_EVENT_CLOSE: MDP has tore down entire session.
	* @MDSS_EVENT_SUSPEND: Propagation of power suspend event.
	* @MDSS_EVENT_RESUME: Propagation of power resume event.
	* @MDSS_EVENT_CHECK_PARAMS: Event generated when a panel reconfiguration is
	* requested including when resolution changes.
	* The event handler receives pointer to
	* struct mdss_panel_info and should return one of:
	* - negative if the configuration is invalid
	* - 0 if there is no panel reconfig needed
	* - 1 if reconfig is needed to take effect
	* @MDSS_EVENT_CONT_SPLASH_BEGIN: Special event used to handle transition of
	* display state from boot loader to panel driver.
	* The event handler will disable the panel.
	* @MDSS_EVENT_CONT_SPLASH_FINISH: Special event used to handle transition of
	* display state from boot loader to panel driver.
	* The event handler will enable the panel and
	* vote for the display clocks.
	* @MDSS_EVENT_PANEL_UPDATE_FPS: Event to update the frame rate of the panel.
	* @MDSS_EVENT_FB_REGISTERED: Called after fb dev driver has been registered,
	* panel driver gets ptr to struct fb_info which
	* holds fb dev information.
	* @MDSS_EVENT_PANEL_CLK_CTRL: panel clock control
	- 0 clock disable
	- 1 clock enable
	* @MDSS_EVENT_DSI_CMDLIST_KOFF: kickoff sending dcs command from command list
	* @MDSS_EVENT_ENABLE_PARTIAL_UPDATE: Event to update ROI of the panel.
	*/
	enum mdss_intf_events {
	MDSS_EVENT_RESET = 1,
	MDSS_EVENT_UNBLANK,
	MDSS_EVENT_PANEL_ON,
	MDSS_EVENT_BLANK,
	MDSS_EVENT_PANEL_OFF,
	MDSS_EVENT_CLOSE,
	MDSS_EVENT_SUSPEND,
	MDSS_EVENT_RESUME,
	MDSS_EVENT_CHECK_PARAMS,
	MDSS_EVENT_CONT_SPLASH_BEGIN,
	MDSS_EVENT_CONT_SPLASH_FINISH,
	MDSS_EVENT_PANEL_UPDATE_FPS,
	MDSS_EVENT_FB_REGISTERED,
	MDSS_EVENT_PANEL_CLK_CTRL,
	MDSS_EVENT_DSI_CMDLIST_KOFF,
	MDSS_EVENT_ENABLE_PARTIAL_UPDATE,
	};

	struct lcd_panel_info {
	u32 h_back_porch;
	u32 h_front_porch;
	u32 h_pulse_width;
	u32 v_back_porch;
	u32 v_front_porch;
	u32 v_pulse_width;
	u32 border_clr;
	u32 underflow_clr;
	u32 hsync_skew;
	/* Pad width */
	u32 xres_pad;
	/* Pad height */
	u32 yres_pad;
	};


	/* DSI PHY configuration */
	struct mdss_dsi_phy_ctrl {
	uint32_t regulator[7];
	uint32_t timing[12];
	uint32_t ctrl[4];
	uint32_t strength[2];
	char bistctrl[6];
	uint32_t pll[21];
	char lanecfg[45];
	};

	struct mipi_panel_info {
	char mode; /* video/cmd */
	char interleave_mode;
	char crc_check;
	char ecc_check;
	char dst_format; /* shared by video and command */
	char data_lane0;
	char data_lane1;
	char data_lane2;
	char data_lane3;
	char dlane_swap; /* data lane swap */
	char rgb_swap;
	char b_sel;
	char g_sel;
	char r_sel;
	char rx_eot_ignore;
	char tx_eot_append;
	char t_clk_post; /* 0xc0, DSI_CLKOUT_TIMING_CTRL */
	char t_clk_pre; /* 0xc0, DSI_CLKOUT_TIMING_CTRL */
	char vc; /* virtual channel */
	struct mdss_dsi_phy_ctrl dsi_phy_db;
	/* video mode */
	char pulse_mode_hsa_he;
	char hfp_power_stop;
	char hbp_power_stop;
	char hsa_power_stop;
	char eof_bllp_power_stop;
	char bllp_power_stop;
	char traffic_mode;
	char frame_rate;
	/* command mode */
	char interleave_max;
	char insert_dcs_cmd;
	char wr_mem_continue;
	char wr_mem_start;
	char te_sel;
	char stream; /* 0 or 1 */
	char mdp_trigger;
	char dma_trigger;
	u32 dsi_pclk_rate;
	/* The packet-size should not bet changed */
	char no_max_pkt_size;
	/* Clock required during LP commands */
	char force_clk_lane_hs;

	char vsync_enable;
	char hw_vsync_mode;
	};

	enum dynamic_fps_update {
	DFPS_SUSPEND_RESUME_MODE,
	DFPS_IMMEDIATE_CLK_UPDATE_MODE,
	};

	enum lvds_mode {
	LVDS_SINGLE_CHANNEL_MODE,
	LVDS_DUAL_CHANNEL_MODE,
	};

	struct lvds_panel_info {
	enum lvds_mode channel_mode;
	/* Channel swap in dual mode */
	char channel_swap;
	};

	struct fbc_panel_info {
	u32 enabled;
	u32 target_bpp;
	u32 comp_mode;
	u32 qerr_enable;
	u32 cd_bias;
	u32 pat_enable;
	u32 vlc_enable;
	u32 bflc_enable;

	u32 line_x_budget;
	u32 block_x_budget;
	u32 block_budget;

	u32 lossless_mode_thd;
	u32 lossy_mode_thd;
	u32 lossy_rgb_thd;
	u32 lossy_mode_idx;
	};

	struct mdss_panel_info {
	u32 xres;
	u32 yres;
	u32 physical_width;
	u32 physical_height;
	u32 bpp;
	u32 type;
	u32 wait_cycle;
	u32 pdest;
	u32 bl_max;
	u32 bl_min;
	u32 fb_num;
	u32 clk_rate;
	u32 clk_min;
	u32 clk_max;
	u32 frame_count;
	u32 is_3d_panel;
	u32 out_format;
	u32 rst_seq[MDSS_DSI_RST_SEQ_LEN];
	u32 rst_seq_len;
	u32 vic; /* video identification code */
	u32 roi_x;
	u32 roi_y;
	u32 roi_w;
	u32 roi_h;
	int bklt_ctrl; /* backlight ctrl */
	int pwm_pmic_gpio;
	int pwm_lpg_chan;
	int pwm_period;
	u32 mode_gpio_state;
	bool dynamic_fps;
	char dfps_update;
	int new_fps;

	u32 cont_splash_enabled;
	u32 partial_update_enabled;
	struct ion_handle *splash_ihdl;
	u32 panel_power_on;

	struct lcd_panel_info lcdc;
	struct fbc_panel_info fbc;
	struct mipi_panel_info mipi;
	struct lvds_panel_info lvds;
	};

	struct mdss_panel_data {
	struct mdss_panel_info panel_info;
	void (set_backlight) (struct mdss_panel_data pdata, u32 bl_level);
	unsigned char *mmss_cc_base;

	/**
	* event_handler() - callback handler for MDP core events
	* @pdata: Pointer refering to the panel struct associated to this
	* event. Can be used to retrieve panel info.
	* @e: Event being generated, see enum mdss_intf_events
	* @arg: Optional argument to pass some info from some events.
	*
	* Used to register handler to be used to propagate different events
	* happening in MDP core driver. Panel driver can listen for any of
	* these events to perform appropriate actions for panel initialization
	* and teardown.
	*/
	int (event_handler) (struct mdss_panel_data pdata, int e, void *arg);

	struct mdss_panel_data *next;
	};

	/**
	* mdss_get_panel_framerate() - get panel frame rate based on panel information
	* @panel_info: Pointer to panel info containing all panel information
	*/
	static inline u32 mdss_panel_get_framerate(struct mdss_panel_info *panel_info)
	{
	u32 frame_rate, pixel_total;

	if (panel_info == NULL)
	return DEFAULT_FRAME_RATE;

	switch (panel_info->type) {
	case MIPI_VIDEO_PANEL:
	case MIPI_CMD_PANEL:
	frame_rate = panel_info->mipi.frame_rate;
	break;
	case WRITEBACK_PANEL:
	frame_rate = DEFAULT_FRAME_RATE;
	break;
	default:
	pixel_total = (panel_info->lcdc.h_back_porch +
	panel_info->lcdc.h_front_porch +
	panel_info->lcdc.h_pulse_width +
	panel_info->xres) *
	(panel_info->lcdc.v_back_porch +
	panel_info->lcdc.v_front_porch +
	panel_info->lcdc.v_pulse_width +
	panel_info->yres);
	if (pixel_total)
	frame_rate = panel_info->clk_rate / pixel_total;
	else
	frame_rate = DEFAULT_FRAME_RATE;

	break;
	}
	return frame_rate;
	}

	/*
	* mdss_panel_get_vtotal() - return panel vertical height
	* @pinfo: Pointer to panel info containing all panel information
	*
	* Returns the total height of the panel including any blanking regions
	* which are not visible to user but used to calculate panel pixel clock.
	*/
	static inline int mdss_panel_get_vtotal(struct mdss_panel_info *pinfo)
	{
	return pinfo->yres + pinfo->lcdc.v_back_porch +
	pinfo->lcdc.v_front_porch +
	pinfo->lcdc.v_pulse_width;
	}

	/*
	* mdss_panel_get_htotal() - return panel horizontal width
	* @pinfo: Pointer to panel info containing all panel information
	*
	* Returns the total width of the panel including any blanking regions
	* which are not visible to user but used for calculations.
	*/
	static inline int mdss_panel_get_htotal(struct mdss_panel_info *pinfo)
	{
	return pinfo->xres + pinfo->lcdc.h_back_porch +
	pinfo->lcdc.h_front_porch +
	pinfo->lcdc.h_pulse_width;
	}

	int mdss_register_panel(struct platform_device *pdev,
	struct mdss_panel_data *pdata);

	/**
	* mdss_panel_intf_type: - checks if a given intf type is primary
	* @intf_val: panel interface type of the individual controller
	*
	* Individual controller queries with MDP to check if it is
	* configured as the primary interface.
	*
	* returns a pointer to the configured structure mdss_panel_cfg
	* to the controller that's configured as the primary panel interface.
	* returns NULL on error or if @intf_val is not the configured
	* controller.
	*/
	struct mdss_panel_cfg *mdss_panel_intf_type(int intf_val);

	/**
	* mdss_panel_get_boot_cfg() - checks if bootloader config present
	*
	* Function returns true if bootloader has configured the parameters
	* for primary controller and panel config data.
	*
	* returns true if bootloader configured, else false
	*/
	int mdss_panel_get_boot_cfg(void);

	/**
	* mdss_is_ready() - checks if mdss is probed and ready
	*
	* Checks if mdss resources have been initialized
	*
	* returns true if mdss is ready, else returns false.
	*/
	bool mdss_is_ready(void);
	#endif /* MDSS_PANEL_H */