From patchwork Tue Nov 23 07:16:41 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Inki Dae X-Patchwork-Id: 349061 X-Patchwork-Delegate: lethal@linux-sh.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id oAN7FaAF015607 for ; Tue, 23 Nov 2010 07:16:26 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751999Ab0KWHQ0 (ORCPT ); Tue, 23 Nov 2010 02:16:26 -0500 Received: from mailout3.samsung.com ([203.254.224.33]:38683 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751994Ab0KWHQZ (ORCPT ); Tue, 23 Nov 2010 02:16:25 -0500 Received: from epmmp1 (mailout3.samsung.com [203.254.224.33]) by mailout3.samsung.com (Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built Sep 7 2010)) with ESMTP id <0LCB001RQTIUMYE0@mailout3.samsung.com> for linux-fbdev@vger.kernel.org; Tue, 23 Nov 2010 16:16:06 +0900 (KST) Received: from TNRNDGASPAPP1.tn.corp.samsungelectronics.net ([165.213.149.150]) by mmp1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0LCB00GOXTIU78@mmp1.samsung.com> for linux-fbdev@vger.kernel.org; Tue, 23 Nov 2010 16:16:06 +0900 (KST) Received: from localhost.localdomain ([10.89.10.123]) by TNRNDGASPAPP1.tn.corp.samsungelectronics.net with Microsoft SMTPSVC(6.0.3790.4675); Tue, 23 Nov 2010 16:16:06 +0900 Date: Tue, 23 Nov 2010 16:16:41 +0900 From: Inki Dae Subject: [PATCH 4/4] S5PC110: add MIPI-DSI driver. In-reply-to: <> To: linux-fbdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: kyungmin.park@samsung.com, kgene.kim@samsung.com, lethal@linux-sh.org, akpm@linux-foundation.org, Inki Dae Message-id: <1290496601-4949-1-git-send-email-inki.dae@samsung.com> X-Mailer: git-send-email 1.5.4.3 Content-transfer-encoding: 7BIT References: <> X-OriginalArrivalTime: 23 Nov 2010 07:16:06.0429 (UTC) FILETIME=[4B80B4D0:01CB8ADE] Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Tue, 23 Nov 2010 07:16:27 +0000 (UTC) diff --git a/arch/arm/plat-s5p/include/plat/dsim.h b/arch/arm/plat-s5p/include/plat/dsim.h new file mode 100644 index 0000000..14bc13f --- /dev/null +++ b/arch/arm/plat-s5p/include/plat/dsim.h @@ -0,0 +1,470 @@ +/* linux/arm/arch/plat-s5p/include/plat/dsim.h + * + * Platform data header for Samsung MIPI-DSIM. + * + * Copyright (c) 2009 Samsung Electronics + * InKi Dae + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef _DSIM_H +#define _DSIM_H + +#include + +/* h/w configuration */ +#define MIPI_FIN 24000000 + +#define DSIM_TRUE 1 +#define DSIM_FALSE 0 + +#define DSIM_HEADER_FIFO_SZ 16 + +enum dsim_interface_type { + DSIM_COMMAND = 0, + DSIM_VIDEO = 1, +}; + +enum dsim_state { + DSIM_STATE_RESET = 0, + DSIM_STATE_INIT = 1, + DSIM_STATE_STOP = 2, + DSIM_STATE_HSCLKEN = 3, + DSIM_STATE_ULPS = 4, +}; + +enum dsim_virtual_ch_no { + DSIM_VIRTUAL_CH_0 = 0, + DSIM_VIRTUAL_CH_1 = 1, + DSIM_VIRTUAL_CH_2 = 2, + DSIM_VIRTUAL_CH_3 = 3, +}; + +enum dsim_video_mode_type { + DSIM_NON_BURST_SYNC_EVENT = 0, + DSIM_NON_BURST_SYNC_PULSE = 2, + DSIM_BURST = 3, + DSIM_NON_VIDEO_MODE = 4, +}; + +enum dsim_fifo_state { + DSIM_RX_DATA_FULL = (1 << 25), + DSIM_RX_DATA_EMPTY = (1 << 24), + SFR_HEADER_FULL = (1 << 23), + SFR_HEADER_EMPTY = (1 << 22), + SFR_PAYLOAD_FULL = (1 << 21), + SFR_PAYLOAD_EMPTY = (1 << 20), + I80_HEADER_FULL = (1 << 19), + I80_HEADER_EMPTY = (1 << 18), + I80_PALOAD_FULL = (1 << 17), + I80_PALOAD_EMPTY = (1 << 16), + SUB_DISP_HEADER_FULL = (1 << 15), + SUB_DISP_HEADER_EMPTY = (1 << 14), + SUB_DISP_PAYLOAD_FULL = (1 << 13), + SUB_DISP_PAYLOAD_EMPTY = (1 << 12), + MAIN_DISP_HEADER_FULL = (1 << 11), + MAIN_DISP_HEADER_EMPTY = (1 << 10), + MAIN_DISP_PAYLOAD_FULL = (1 << 9), + MAIN_DISP_PAYLOAD_EMPTY = (1 << 8), +}; + +enum dsim_no_of_data_lane { + DSIM_DATA_LANE_1 = 0, + DSIM_DATA_LANE_2 = 1, + DSIM_DATA_LANE_3 = 2, + DSIM_DATA_LANE_4 = 3, +}; + +enum dsim_byte_clk_src { + DSIM_PLL_OUT_DIV8 = 0, + DSIM_EXT_CLK_DIV8 = 1, + DSIM_EXT_CLK_BYPASS = 2, +}; + +enum dsim_lane { + DSIM_LANE_DATA0 = (1 << 0), + DSIM_LANE_DATA1 = (1 << 1), + DSIM_LANE_DATA2 = (1 << 2), + DSIM_LANE_DATA3 = (1 << 3), + DSIM_LANE_DATA_ALL = 0xf, + DSIM_LANE_CLOCK = (1 << 4), + DSIM_LANE_ALL = DSIM_LANE_CLOCK | DSIM_LANE_DATA_ALL, +}; + +enum dsim_pixel_format { + DSIM_CMD_3BPP = 0, + DSIM_CMD_8BPP = 1, + DSIM_CMD_12BPP = 2, + DSIM_CMD_16BPP = 3, + DSIM_VID_16BPP_565 = 4, + DSIM_VID_18BPP_666PACKED = 5, + DSIM_18BPP_666LOOSELYPACKED = 6, + DSIM_24BPP_888 = 7, +}; + +enum dsim_lane_state { + DSIM_LANE_STATE_HS_READY, + DSIM_LANE_STATE_ULPS, + DSIM_LANE_STATE_STOP, + DSIM_LANE_STATE_LPDT, +}; + +enum dsim_transfer { + DSIM_TRANSFER_NEITHER = 0, + DSIM_TRANSFER_BYCPU = (1 << 7), + DSIM_TRANSFER_BYLCDC = (1 << 6), + DSIM_TRANSFER_BOTH = (0x3 << 6) +}; + +enum dsim_lane_change { + DSIM_NO_CHANGE = 0, + DSIM_DATA_LANE_CHANGE = 1, + DSIM_CLOCK_NALE_CHANGE = 2, + DSIM_ALL_LANE_CHANGE = 3, +}; + +enum dsim_int_src { + DSIM_ALL_OF_INTR = 0xffffffff, + DSIM_PLL_STABLE = (1 << 31), +}; + +/** + * struct dsim_config - interface for configuring mipi-dsi controller. + * + * @auto_flush: enable or disable Auto flush of MD FIFO using VSYNC pulse. + * @eot_disable: enable or disable EoT packet in HS mode. + * @auto_vertical_cnt: specifies auto vertical count mode. + * in Video mode, the vertical line transition uses line counter + * configured by VSA, VBP, and Vertical resolution. + * If this bit is set to '1', the line counter does not use VSA and VBP + * registers.(in command mode, this variable is ignored) + * @hse: set horizontal sync event mode. + * In VSYNC pulse and Vporch area, MIPI DSI master transfers only HSYNC + * start packet to MIPI DSI slave at MIPI DSI spec1.1r02. + * this bit transfers HSYNC end packet in VSYNC pulse and Vporch area + * (in mommand mode, this variable is ignored) + * @hfp: specifies HFP disable mode. + * if this variable is set, DSI master ignores HFP area in VIDEO mode. + * (in command mode, this variable is ignored) + * @hbp: specifies HBP disable mode. + * if this variable is set, DSI master ignores HBP area in VIDEO mode. + * (in command mode, this variable is ignored) + * @hsa: specifies HSA disable mode. + * if this variable is set, DSI master ignores HSA area in VIDEO mode. + * (in command mode, this variable is ignored) + * @e_no_data_lane: specifies data lane count to be used by Master. + * @e_byte_clk: select byte clock source. (it must be DSIM_PLL_OUT_DIV8) + * DSIM_EXT_CLK_DIV8 and DSIM_EXT_CLK_BYPASSS are not supported. + * @pll_stable_time: specifies the PLL Timer for stability of the ganerated + * clock(System clock cycle base) + * if the timer value goes to 0x00000000, the clock stable bit of status + * and interrupt register is set. + * @esc_clk: specifies escape clock frequency for getting the escape clock + * prescaler value. + * @stop_holding_cnt: specifies the interval value between transmitting + * read packet(or write "set_tear_on" command) and BTA request. + * after transmitting read packet or write "set_tear_on" command, + * BTA requests to D-PHY automatically. this counter value specifies + * the interval between them. + * @bta_timeout: specifies the timer for BTA. + * this register specifies time out from BTA request to change + * the direction with respect to Tx escape clock. + * @rx_timeout: specifies the timer for LP Rx mode timeout. + * this register specifies time out on how long RxValid deasserts, + * after RxLpdt asserts with respect to Tx escape clock. + * - RxValid specifies Rx data valid indicator. + * - RxLpdt specifies an indicator that D-PHY is under RxLpdt mode. + * - RxValid and RxLpdt specifies signal from D-PHY. + * @e_lane_swap: swaps Dp/Dn channel of Clock lane or Data lane. + * if this bit is set, Dp and Dn channel would be swapped each other. + */ +struct dsim_config { + unsigned char auto_flush; + unsigned char eot_disable; + + unsigned char auto_vertical_cnt; + unsigned char hse; + unsigned char hfp; + unsigned char hbp; + unsigned char hsa; + + enum dsim_no_of_data_lane e_no_data_lane; + enum dsim_byte_clk_src e_byte_clk; + + /* + * =========================================== + * | P | M | S | MHz | + * ------------------------------------------- + * | 3 | 100 | 3 | 100 | + * | 3 | 100 | 2 | 200 | + * | 3 | 63 | 1 | 252 | + * | 4 | 100 | 1 | 300 | + * | 4 | 110 | 1 | 330 | + * | 12 | 350 | 1 | 350 | + * | 3 | 100 | 1 | 400 | + * | 4 | 150 | 1 | 450 | + * | 3 | 118 | 1 | 472 | + * | 12 | 250 | 0 | 500 | + * | 4 | 100 | 0 | 600 | + * | 3 | 81 | 0 | 648 | + * | 3 | 88 | 0 | 704 | + * | 3 | 90 | 0 | 720 | + * | 3 | 100 | 0 | 800 | + * | 12 | 425 | 0 | 850 | + * | 4 | 150 | 0 | 900 | + * | 12 | 475 | 0 | 950 | + * | 6 | 250 | 0 | 1000 | + * ------------------------------------------- + */ + unsigned char p; + unsigned short m; + unsigned char s; + + unsigned int pll_stable_time; + unsigned long esc_clk; + + unsigned short stop_holding_cnt; + unsigned char bta_timeout; + unsigned short rx_timeout; + enum dsim_video_mode_type e_lane_swap; +}; + +/** + * struct dsim_lcd_config - interface for configuring mipi-dsi based lcd panel. + * + * @e_interface: specifies interface to be used.(CPU or RGB interface) + * @parameter[0]: specifies virtual channel number + * that main or sub diaplsy uses. + * @parameter[1]: specifies pixel stream format for main or sub display. + * @parameter[2]: selects Burst mode in Video mode. + * in Non-burst mode, RGB data area is filled with RGB data and NULL + * packets, according to input bandwidth of RGB interface. + * In Burst mode, RGB data area is filled with RGB data only. + * @lcd_panel_info: pointer for lcd panel specific structure. + * this structure specifies width, height, timing and polarity and so on. + * @mipi_ddi_pd: pointer for lcd panel platform data. + */ +struct dsim_lcd_config { + enum dsim_interface_type e_interface; + unsigned int parameter[3]; + + void *lcd_panel_info; + void *mipi_ddi_pd; +}; + +struct dsim_global; +struct fb_info; +struct regulator; + +/** + * struct s5p_platform_dsim - interface to platform data for mipi-dsi driver. + * + * @clk_name: specifies clock name for mipi-dsi. + * @lcd_panel_name: specifies lcd panel name registered to mipi-dsi driver. + * lcd panel driver searched would be actived. + * @mipi_1_1v_name: specifies mipi 1.1v regulator name. + * @mipi_1_8v_name: specifies mipi 1.8v regulator name. + * @platfrom_rev: specifies platform revision number. + * revision number should become 1. + * @dsim_config: pointer of structure for configuring mipi-dsi controller. + * @dsim_lcd_info: pointer to structure for configuring + * mipi-dsi based lcd panel. + * @mipi_power: callback pointer for enabling or disabling mipi power. + * @part_reset: callback pointer for reseting mipi phy. + * @init_d_phy: callback pointer for enabing d_phy of dsi master. + * @get_fb_frame_done: callback pointer for getting frame done status of the + * display controller(FIMD). + * @trigger: callback pointer for triggering display controller(FIMD) + * in case of CPU mode. + * @delay_for_stabilization: specifies stable time. + * this delay needs when writing data on SFR + * after mipi mode became LP mode. + */ +struct s5p_platform_dsim { + char *clk_name; + char *mipi_1_1v_name; + char *mipi_1_8v_name; + char lcd_panel_name[64]; + unsigned int platform_rev; + + struct dsim_config *dsim_info; + struct dsim_lcd_config *dsim_lcd_info; + + unsigned int delay_for_stabilization; + + int (*mipi_power) (struct dsim_global *dsim, + struct regulator *p_mipi_1_1v, + struct regulator *p_mipi_1_8v, unsigned int enable); + int (*part_reset) (struct dsim_global *dsim); + int (*init_d_phy) (struct dsim_global *dsim); + int (*get_fb_frame_done) (struct fb_info *info); + void (*trigger) (struct fb_info *info); +}; + +/** + * struct dsim_global - global interface for mipi-dsi driver. + * + * @dev: driver model representation of the device. + * @clock: pointer to MIPI-DSI clock of clock framework. + * @irq: interrupt number to MIPI-DSI controller. + * @reg_base: base address to memory mapped SRF of MIPI-DSI controller. + * (virtual address) + * @r_mipi_1_1v: pointer to regulator for MIPI 1.1v power. + * @r_mipi_1_8v: pointer to regulator for MIPI 1.8v power. + * @pd: pointer to MIPI-DSI driver platform data. + * @dsim_lcd_info: pointer to structure for configuring + * mipi-dsi based lcd panel. + * @lcd_panel_info: pointer for lcd panel specific structure. + * this structure specifies width, height, timing and polarity and so on. + * @mipi_ddi_pd: pointer for lcd panel platform data. + * @mipi_drv: pointer to driver structure for mipi-dsi based lcd panel. + * @s3cfb_notif: kernel notifier structure to be registered + * by device specific framebuffer driver. + * this notifier could be used by fb_blank of device specifiec + * framebuffer driver. + * @state: specifies status of MIPI-DSI controller. + * the status could be RESET, INIT, STOP, HSCLKEN and ULPS. + * @data_lane: specifiec enabled data lane number. + * this variable would be set by driver according to e_no_data_lane + * automatically. + * @e_clk_src: select byte clock source. + * this variable would be set by driver according to e_byte_clock + * automatically. + * @hs_clk: HS clock rate. + * this variable would be set by driver automatically. + * @byte_clk: Byte clock rate. + * this variable would be set by driver automatically. + * @escape_clk: ESCAPE clock rate. + * this variable would be set by driver automatically. + * @freq_band: indicates Bitclk frequency band for D-PHY global timing. + * Serial Clock(=ByteClk X 8) FreqBand[3:0] + * ~ 99.99 MHz 0000 + * 100 ~ 119.99 MHz 0001 + * 120 ~ 159.99 MHz 0010 + * 160 ~ 199.99 MHz 0011 + * 200 ~ 239.99 MHz 0100 + * 140 ~ 319.99 MHz 0101 + * 320 ~ 389.99 MHz 0110 + * 390 ~ 449.99 MHz 0111 + * 450 ~ 509.99 MHz 1000 + * 510 ~ 559.99 MHz 1001 + * 560 ~ 639.99 MHz 1010 + * 640 ~ 689.99 MHz 1011 + * 690 ~ 769.99 MHz 1100 + * 770 ~ 869.99 MHz 1101 + * 870 ~ 949.99 MHz 1110 + * 950 ~ 1000 MHz 1111 + * this variable would be calculated by driver automatically. + * + * @header_fifo_index: specifies header fifo index. + * this variable is not used yet. + */ +struct dsim_global { + struct device *dev; + struct clk *clock; + unsigned int irq; + void __iomem *reg_base; + + struct regulator *r_mipi_1_1v; + struct regulator *r_mipi_1_8v; + + struct s5p_platform_dsim *pd; + struct dsim_config *dsim_info; + struct dsim_lcd_config *dsim_lcd_info; + struct fb_videomode *lcd_panel_info; + struct mipi_ddi_platform_data *mipi_ddi_pd; + struct mipi_lcd_driver *mipi_drv; + struct notifier_block s3cfb_notif; + + unsigned char state; + unsigned int data_lane; + enum dsim_byte_clk_src e_clk_src; + unsigned long hs_clk; + unsigned long byte_clk; + unsigned long escape_clk; + unsigned char freq_band; + + char header_fifo_index[DSIM_HEADER_FIFO_SZ]; +}; + +/** + * driver structure for mipi-dsi based lcd panel. + * + * this structure should be registered by lcd panel driver. + * mipi-dsi driver seeks lcd panel registered through name field + * and calls these callback functions in appropriate time. + */ +struct mipi_lcd_driver { + s8 *name; + + s32 (*init)(struct device *dev); + void (*display_on)(struct device *dev); + s32 (*set_link)(struct mipi_ddi_platform_data *pd); + s32 (*probe)(struct device *dev); + s32 (*remove)(struct device *dev); + void (*shutdown)(struct device *dev); + s32 (*suspend)(struct device *dev); + s32 (*resume)(struct device *dev); +}; + +/** + * register mipi_lcd_driver object defined by lcd panel driver + * to mipi-dsi driver. + */ +extern int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv); + +/** + * reset MIPI PHY through MIPI PHY CONTROL REGISTER + */ +extern int s5p_dsim_part_reset(struct dsim_global *dsim); + +/** + * enable MIPI D-PHY and DSI Master block. + */ +extern int s5p_dsim_init_d_phy(struct dsim_global *dsim); + +struct regulator; + +/** + * enable regulators to MIPI-DSI power. + */ +extern int s5p_dsim_mipi_power(struct dsim_global *dsim, + struct regulator *p_mipi_1_1v, struct regulator *p_mipi_1_8v, + unsigned int enable); + +/** + * send commands to mipi based lcd panel. + * + * @dsim_data: point to struct dsim_global. + * @data_id: MIPI-DSI Command ID. + * @data0: address to command array. + * @data1: size of command array. + */ +extern int s5p_dsim_wr_data(void *dsim_data, unsigned int data_id, + unsigned int data0, unsigned int data1); + +/** + * get framedone status of mipi-dsi controller. + * + * @dsim_data: point to struct dsim_global. + */ +extern int s5p_dsim_get_frame_done_status(void *dsim_data); + +/** + * clear framedone interrupt of mipi-dsi controller. + * + * @dsim_data: point to struct dsim_global. + */ +extern int s5p_dsim_clear_frame_done(void *dsim_data); + +/** + * wrapper function for changing transfer mode. + * + * @mode: it could be 0(LP MODE) or 1(HS MODE). + */ +extern int s5p_dsim_change_transfer_mode(unsigned int mode); + +#endif /* _DSIM_H */ diff --git a/arch/arm/plat-s5p/include/plat/mipi_ddi.h b/arch/arm/plat-s5p/include/plat/mipi_ddi.h new file mode 100644 index 0000000..7f1da09 --- /dev/null +++ b/arch/arm/plat-s5p/include/plat/mipi_ddi.h @@ -0,0 +1,94 @@ +/* linux/arm/arch/plat-s5p/include/plat/mipi_ddi.h + * + * definitions for DDI based MIPI-DSI. + * + * Copyright (c) 2009 Samsung Electronics + * InKi Dae + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef _MIPI_DDI_H +#define _MIPI_DDI_H + +enum mipi_ddi_interface { + RGB_IF = 0x4000, + I80_IF = 0x8000, + YUV_601 = 0x10000, + YUV_656 = 0x20000, + MIPI_VIDEO = 0x1000, + MIPI_COMMAND = 0x2000, +}; + +enum mipi_ddi_panel_select { + DDI_MAIN_LCD = 0, + DDI_SUB_LCD = 1, +}; + +enum mipi_ddi_parameter { + /* DSIM video interface parameter */ + DSI_VIRTUAL_CH_ID = 0, + DSI_FORMAT = 1, + DSI_VIDEO_MODE_SEL = 2, +}; + +struct lcd_device; +struct fb_info; + +struct mipi_ddi_platform_data { + void *dsim_data; + /* + * it is used for command mode lcd panel and + * when all contents of framebuffer in panel module are transfered + * to lcd panel it occurs te signal. + * + * note: + * - in case of command mode(cpu mode), it should be triggered only + * when TE signal of lcd panel and frame done interrupt of display + * controller or mipi controller occurs. + */ + unsigned int te_irq; + + /* + * it is used for PM stable time at te interrupt handler and + * could be used according to lcd panel characteristic or not. + */ + unsigned int resume_complete; + + int (*lcd_reset) (struct lcd_device *ld); + int (*lcd_power_on) (struct lcd_device *ld, int enable); + int (*backlight_on) (int enable); + + /* transfer command to lcd panel at LP mode. */ + int (*cmd_write) (void *dsim_data, unsigned int data_id, + unsigned int data0, unsigned int data1); + int (*cmd_read) (void *dsim_data, unsigned int data_id, + unsigned int data0, unsigned int data1); + /* + * get the status that all screen data have been transferred + * to mipi-dsi. + */ + int (*get_dsim_frame_done) (void *dsim_data); + int (*clear_dsim_frame_done) (void *dsim_data); + + /* + * changes mipi transfer mode to LP or HS mode. + * + * LP mode needs when some commands like gamma values transfers + * to lcd panel. + */ + int (*change_dsim_transfer_mode) (unsigned int mode); + + /* get frame done status of display controller. */ + int (*get_fb_frame_done) (struct fb_info *info); + /* trigger display controller in case of cpu mode. */ + void (*trigger) (struct fb_info *info); + + unsigned int reset_delay; + unsigned int power_on_delay; + unsigned int power_off_delay; +}; + +#endif /* _MIPI_DDI_H */ diff --git a/arch/arm/plat-s5p/include/plat/regs-dsim.h b/arch/arm/plat-s5p/include/plat/regs-dsim.h new file mode 100644 index 0000000..c4bfab5 --- /dev/null +++ b/arch/arm/plat-s5p/include/plat/regs-dsim.h @@ -0,0 +1,281 @@ +/* linux/arch/arm/plat-s5p/include/plat/regs-dsim.h + * + * Register definition file for Samsung MIPI-DSIM driver + * + * InKi Dae , Copyright (c) 2009 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef _REGS_DSIM_H +#define _REGS_DSIM_H + +#define S5P_DSIM_STATUS (0x0) /* Status register */ +#define S5P_DSIM_SWRST (0x4) /* Software reset register */ +#define S5P_DSIM_CLKCTRL (0x8) /* Clock control register */ +#define S5P_DSIM_TIMEOUT (0xc) /* Time out register */ +#define S5P_DSIM_CONFIG (0x10) /* Configuration register */ +#define S5P_DSIM_ESCMODE (0x14) /* Escape mode register */ + +/* Main display image resolution register */ +#define S5P_DSIM_MDRESOL (0x18) +#define S5P_DSIM_MVPORCH (0x1c) /* Main display Vporch register */ +#define S5P_DSIM_MHPORCH (0x20) /* Main display Hporch register */ +#define S5P_DSIM_MSYNC (0x24) /* Main display sync area register */ + +/* Sub display image resolution register */ +#define S5P_DSIM_SDRESOL (0x28) +#define S5P_DSIM_INTSRC (0x2c) /* Interrupt source register */ +#define S5P_DSIM_INTMSK (0x30) /* Interrupt mask register */ +#define S5P_DSIM_PKTHDR (0x34) /* Packet Header FIFO register */ +#define S5P_DSIM_PAYLOAD (0x38) /* Payload FIFO register */ +#define S5P_DSIM_RXFIFO (0x3c) /* Read FIFO register */ +#define S5P_DSIM_FIFOTHLD (0x40) /* FIFO threshold level register */ +#define S5P_DSIM_FIFOCTRL (0x44) /* FIFO status and control register */ + +/* FIFO memory AC characteristic register */ +#define S5P_DSIM_MEMACCHR (0x48) +#define S5P_DSIM_PLLCTRL (0x4c) /* PLL control register */ +#define S5P_DSIM_PLLTMR (0x50) /* PLL timer register */ +#define S5P_DSIM_PHYACCHR (0x54) /* D-PHY AC characteristic register */ +#define S5P_DSIM_PHYACCHR1 (0x58) /* D-PHY AC characteristic register1 */ + +/* DSIM_SWRST */ +#define DSIM_FUNCRST (1 << 16) +#define DSIM_SWRST (1 << 0) + +/* S5P_DSIM_TIMEOUT */ +#define DSIM_LPDR_TOUT_SHIFT (0) +#define DSIM_BTA_TOUT_SHIFT (16) +#define DSIM_LPDR_TOUT(x) (((x) & 0xffff) << DSIM_LPDR_TOUT_SHIFT) +#define DSIM_BTA_TOUT(x) (((x) & 0xff) << DSIM_BTA_TOUT_SHIFT) + +/* S5P_DSIM_CLKCTRL */ +#define DSIM_ESC_PRESCALER_SHIFT (0) +#define DSIM_LANE_ESC_CLKEN_SHIFT (19) +#define DSIM_BYTE_CLKEN_SHIFT (24) +#define DSIM_BYTE_CLK_SRC_SHIFT (25) +#define DSIM_PLL_BYPASS_SHIFT (27) +#define DSIM_ESC_CLKEN_SHIFT (28) +#define DSIM_TX_REQUEST_HSCLK_SHIFT (31) +#define DSIM_ESC_PRESCALER(x) (((x) & 0xffff) << \ + DSIM_ESC_PRESCALER_SHIFT) +#define DSIM_LANE_ESC_CLKEN(x) (((x) & 0x1f) << \ + DSIM_LANE_ESC_CLKEN_SHIFT) +#define DSIM_BYTE_CLK_ENABLE (1 << DSIM_BYTE_CLKEN_SHIFT) +#define DSIM_BYTE_CLK_DISABLE (0 << DSIM_BYTE_CLKEN_SHIFT) +#define DSIM_BYTE_CLKSRC(x) (((x) & 0x3) << DSIM_BYTE_CLK_SRC_SHIFT) +#define DSIM_PLL_BYPASS_PLL (0 << DSIM_PLL_BYPASS_SHIFT) +#define DSIM_PLL_BYPASS_EXTERNAL (1 << DSIM_PLL_BYPASS_SHIFT) +#define DSIM_ESC_CLKEN_ENABLE (1 << DSIM_ESC_CLKEN_SHIFT) +#define DSIM_ESC_CLKEN_DISABLE (0 << DSIM_ESC_CLKEN_SHIFT) + +/* S5P_DSIM_CONFIG */ +#define DSIM_LANE_EN_SHIFT (0) +#define DSIM_NUM_OF_DATALANE_SHIFT (5) +#define DSIM_SUB_PIX_FORMAT_SHIFT (8) +#define DSIM_MAIN_PIX_FORMAT_SHIFT (12) +#define DSIM_SUB_VC_SHIFT (16) +#define DSIM_MAIN_VC_SHIFT (18) +#define DSIM_HSA_MODE_SHIFT (20) +#define DSIM_HBP_MODE_SHIFT (21) +#define DSIM_HFP_MODE_SHIFT (22) +#define DSIM_HSE_MODE_SHIFT (23) +#define DSIM_AUTO_MODE_SHIFT (24) +#define DSIM_VIDEO_MODE_SHIFT (25) +#define DSIM_BURST_MODE_SHIFT (26) +#define DSIM_SYNC_INFORM_SHIFT (27) +#define DSIM_EOT_R03_SHIFT (28) +#define DSIM_LANE_ENx(x) ((1) << x) + +/* in case of Gemunus, it should be 0x1. */ +#define DSIM_NUM_OF_DATA_LANE(x) ((x) << 5) +#define DSIM_SUB_PIX_FORMAT_3BPP (0 << 8) /* command mode only */ +#define DSIM_SUB_PIX_FORMAT_8BPP (1 << 8) /* command mode only */ +#define DSIM_SUB_PIX_FORMAT_12BPP (2 << 8) /* command mode only */ +#define DSIM_SUB_PIX_FORMAT_16BPP (3 << 8) /* command mode only */ +#define DSIM_SUB_PIX_FORMAT_16BPP_RGB (4 << 8) /* video mode only */ +#define DSIM_SUB_PIX_FORMAT_18BPP_PRGB (5 << 8) /* video mode only */ +#define DSIM_SUB_PIX_FORMAT_18BPP_LRGB (6 << 8) /* common */ +#define DSIM_SUB_PIX_FORMAT_24BPP_RGB (7 << 8) /* common */ +#define DSIM_MAIN_PIX_FORMAT_3BPP (0 << 12) /* command mode only */ +#define DSIM_MAIN_PIX_FORMAT_8BPP (1 << 12) /* command mode only */ +#define DSIM_MAIN_PIX_FORMAT_12BPP (2 << 12) /* command mode only */ +#define DSIM_MAIN_PIX_FORMAT_16BPP (3 << 12) /* command mode only */ +#define DSIM_MAIN_PIX_FORMAT_16BPP_RGB (4 << 12) /* video mode only */ +#define DSIM_MAIN_PIX_FORMAT_18BPP_PRGB (5 << 12) /* video mode only */ +#define DSIM_MAIN_PIX_FORMAT_18BPP_LRGB (6 << 12) /* common */ +#define DSIM_MAIN_PIX_FORMAT_24BPP_RGB (7 << 12) /* common */ + +/* Virtual channel number for sub display */ +#define DSIM_SUB_VC(x) (((x) & 0x3) << 16) +/* Virtual channel number for main display */ +#define DSIM_MAIN_VC(x) (((x) & 0x3) << 18) +#define DSIM_HSA_MODE_ENABLE (1 << 20) +#define DSIM_HSA_MODE_DISABLE (0 << 20) +#define DSIM_HBP_MODE_ENABLE (1 << 21) +#define DSIM_HBP_MODE_DISABLE (0 << 21) +#define DSIM_HFP_MODE_ENABLE (1 << 22) +#define DSIM_HFP_MODE_DISABLE (0 << 22) +#define DSIM_HSE_MODE_ENABLE (1 << 23) +#define DSIM_HSE_MODE_DISABLE (0 << 23) +#define DSIM_AUTO_MODE (1 << 24) +#define DSIM_CONFIGURATION_MODE (0 << 24) +#define DSIM_VIDEO_MODE (1 << 25) +#define DSIM_COMMAND_MODE (0 << 25) +#define DSIM_BURST_MODE (1 << 26) +#define DSIM_NON_BURST_MODE (0 << 26) +#define DSIM_SYNC_INFORM_PULSE (1 << 27) +#define DSIM_SYNC_INFORM_EVENT (0 << 27) +/* enable EoT packet generation for V1.01r11 */ +#define DSIM_EOT_R03_ENABLE (0 << 28) +/* disable EoT packet generation for V1.01r03 */ +#define DSIM_EOT_R03_DISABLE (1 << 28) + +/* S5P_DSIM_ESCMODE */ +#define DSIM_STOP_STATE_CNT_SHIFT (21) +#define DSIM_STOP_STATE_CNT(x) (((x) & 0x3ff) << \ + DSIM_STOP_STATE_CNT_SHIFT) +#define DSIM_FORCE_STOP_STATE_SHIFT (20) +#define DSIM_FORCE_BTA_SHIFT (16) +#define DSIM_CMD_LPDT_HS_MODE (0 << 7) +#define DSIM_CMD_LPDT_LP_MODE (1 << 7) +#define DSIM_TX_LPDT_HS_MODE (0 << 6) +#define DSIM_TX_LPDT_LP_MODE (1 << 6) +#define DSIM_TX_TRIGGER_RST_SHIFT (4) +#define DSIM_TX_UIPS_DAT_SHIFT (3) +#define DSIM_TX_UIPS_EXIT_SHIFT (2) +#define DSIM_TX_UIPS_CLK_SHIFT (1) +#define DSIM_TX_UIPS_CLK_EXIT_SHIFT (0) + +/* S5P_DSIM_MDRESOL */ +#define DSIM_MAIN_STAND_BY (1 << 31) +#define DSIM_MAIN_NOT_READY (0 << 31) +#define DSIM_MAIN_VRESOL(x) (((x) & 0x7ff) << 16) +#define DSIM_MAIN_HRESOL(x) (((x) & 0X7ff) << 0) + +/* S5P_DSIM_MVPORCH */ +#define DSIM_CMD_ALLOW_SHIFT (28) +#define DSIM_STABLE_VFP_SHIFT (16) +#define DSIM_MAIN_VBP_SHIFT (0) +#define DSIM_CMD_ALLOW_MASK (0xf << DSIM_CMD_ALLOW_SHIFT) +#define DSIM_STABLE_VFP_MASK (0x7ff << DSIM_STABLE_VFP_SHIFT) +#define DSIM_MAIN_VBP_MASK (0x7ff << DSIM_MAIN_VBP_SHIFT) +#define DSIM_CMD_ALLOW(x) (((x) & 0xf) << DSIM_CMD_ALLOW_SHIFT) +#define DSIM_STABLE_VFP(x) (((x) & 0x7ff) << DSIM_STABLE_VFP_SHIFT) +#define DSIM_MAIN_VBP(x) (((x) & 0x7ff) << DSIM_MAIN_VBP_SHIFT) + +/* S5P_DSIM_MHPORCH */ +#define DSIM_MAIN_HFP_SHIFT (16) +#define DSIM_MAIN_HBP_SHIFT (0) +#define DSIM_MAIN_HFP_MASK ((0xffff) << DSIM_MAIN_HFP_SHIFT) +#define DSIM_MAIN_HBP_MASK ((0xffff) << DSIM_MAIN_HBP_SHIFT) +#define DSIM_MAIN_HFP(x) (((x) & 0xffff) << DSIM_MAIN_HFP_SHIFT) +#define DSIM_MAIN_HBP(x) (((x) & 0xffff) << DSIM_MAIN_HBP_SHIFT) + +/* S5P_DSIM_MSYNC */ +#define DSIM_MAIN_VSA_SHIFT (22) +#define DSIM_MAIN_HSA_SHIFT (0) +#define DSIM_MAIN_VSA_MASK ((0x3ff) << DSIM_MAIN_VSA_SHIFT) +#define DSIM_MAIN_HSA_MASK ((0xffff) << DSIM_MAIN_HSA_SHIFT) +#define DSIM_MAIN_VSA(x) (((x) & 0x3ff) << DSIM_MAIN_VSA_SHIFT) +#define DSIM_MAIN_HSA(x) (((x) & 0xffff) << DSIM_MAIN_HSA_SHIFT) + +/* S5P_DSIM_SDRESOL */ +#define DSIM_SUB_STANDY_SHIFT (31) +#define DSIM_SUB_VRESOL_SHIFT (16) +#define DSIM_SUB_HRESOL_SHIFT (0) +#define DSIM_SUB_STANDY_MASK ((0x1) << DSIM_SUB_STANDY_SHIFT) +#define DSIM_SUB_VRESOL_MASK ((0x7ff) << DSIM_SUB_VRESOL_SHIFT) +#define DSIM_SUB_HRESOL_MASK ((0x7ff) << DSIM_SUB_HRESOL_SHIFT) +#define DSIM_SUB_STANDY (1 << DSIM_SUB_STANDY_SHIFT) +#define DSIM_SUB_NOT_READY (0 << DSIM_SUB_STANDY_SHIFT) +#define DSIM_SUB_VRESOL(x) (((x) & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) +#define DSIM_SUB_HRESOL(x) (((x) & 0x7ff) << DSIM_SUB_HRESOL_SHIFT) + +/* S5P_DSIM_INTSRC */ +#define INTSRC_ERR_CONTENT_LP1 (1 << 0) +#define INTSRC_ERR_CONTENT_LP0 (1 << 1) +#define INTSRC_ERR_CONTROL0 (1 << 2) +#define INTSRC_ERR_CONTROL1 (1 << 3) +#define INTSRC_ERR_CONTROL2 (1 << 4) +#define INTSRC_ERR_CONTROL3 (1 << 5) +#define INTSRC_ERR_SYNC0 (1 << 6) +#define INTSRC_ERR_SYNC1 (1 << 7) +#define INTSRC_ERR_SYNC2 (1 << 8) +#define INTSRC_ERR_SYNC3 (1 << 9) +#define INTSRC_ERR_ESC0 (1 << 10) +#define INTSRC_ERR_ESC1 (1 << 11) +#define INTSRC_ERR_ESC2 (1 << 12) +#define INTSRC_ERR_ESC3 (1 << 13) +#define INTSRC_ERR_RX_CRC (1 << 14) +#define INTSRC_ERR_RX_ECC (1 << 15) +#define INTSRC_RX_ACK (1 << 16) +#define INTSRC_RX_TE (1 << 17) +#define INTSRC_RX_DAT_DONE (1 << 18) +#define INTSRC_TA_TOUT (1 << 20) +#define INTSRC_LPDR_TOUT (1 << 21) +#define INTSRC_FRAME_DONE (1 << 24) +#define INTSRC_BUS_TURN_OVER (1 << 25) +#define INTSRC_SYNC_OVERRIDE (1 << 28) +#define INTSRC_SFR_FIFO_EMPTY (1 << 29) +#define INTSRC_SW_RST_RELEASE (1 << 30) +#define INTSRC_PLL_STABLE (1 << 31) + +/* S5P_DSIM_INTMSK */ +#define INTMSK_ERR_CONTENT_LP1 (1 << 0) +#define INTMSK_ERR_CONTENT_LP0 (1 << 1) +#define INTMSK_ERR_CONTROL0 (1 << 2) +#define INTMSK_ERR_CONTROL1 (1 << 3) +#define INTMSK_ERR_CONTROL2 (1 << 4) +#define INTMSK_ERR_CONTROL3 (1 << 5) +#define INTMSK_ERR_SYNC0 (1 << 6) +#define INTMSK_ERR_SYNC1 (1 << 7) +#define INTMSK_ERR_SYNC2 (1 << 8) +#define INTMSK_ERR_SYNC3 (1 << 9) +#define INTMSK_ERR_ESC0 (1 << 10) +#define INTMSK_ERR_ESC1 (1 << 11) +#define INTMSK_ERR_ESC2 (1 << 12) +#define INTMSK_ERR_ESC3 (1 << 13) +#define INTMSK_ERR_RX_CRC (1 << 14) +#define INTMSK_ERR_RX_ECC (1 << 15) +#define INTMSK_RX_ACK (1 << 16) +#define INTMSK_RX_TE (1 << 17) +#define INTMSK_RX_DAT_DONE (1 << 18) +#define INTMSK_TA_TOUT (1 << 20) +#define INTMSK_LPDR_TOUT (1 << 21) +#define INTMSK_FRAME_DONE (1 << 24) +#define INTMSK_BUS_TURN_OVER (1 << 25) +#define INTMSK_SFR_FIFO_EMPTY (1 << 29) +#define INTMSK_SW_RST_RELEASE (1 << 30) +#define INTMSK_PLL_STABLE (1 << 31) + +/* S5P_DSIM_PKTHDR */ +#define DSIM_PACKET_HEADER_DI(x) (((x) & 0xff) << 0) +/* Word count lower byte for long packet */ +#define DSIM_PACKET_HEADER_DAT0(x) (((x) & 0xff) << 8) +/* Word count upper byte for long packet */ +#define DSIM_PACKET_HEADER_DAT1(x) (((x) & 0xff) << 16) + +/* S5P_DSIM_FIFOCTRL */ +#define DSIM_RX_FIFO (1 << 4) +#define DSIM_TX_SFR_FIFO (1 << 3) +#define DSIM_I80_FIFO (1 << 2) +#define DSIM_SUB_DISP_FIFO (1 << 1) +#define DSIM_MAIN_DISP_FIFO (1 << 0) + +/* S5P_DSIM_PHYACCHR */ +#define DSIM_AFC_CTL(x) (((x) & 0x7) << 5) +#define DSIM_AFC_ENABLE (1 << 14) +#define DSIM_AFC_DISABLE (0 << 14) + +/* S5P_DSIM_PLLCTRL */ +#define DSIM_PMS_SHIFT (1) +#define DSIM_PLL_EN_SHIFT (23) +#define DSIM_FREQ_BAND_SHIFT (24) +#define DSIM_PMS(x) (((x) & 0x7ffff) << DSIM_PMS_SHIFT) +#define DSIM_FREQ_BAND(x) (((x) & 0xf) << DSIM_FREQ_BAND_SHIFT) + +#endif /* _REGS_DSIM_H */ diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 27c1fb4..2017a0b 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -1996,6 +1996,13 @@ config FB_S3C2410_DEBUG Turn on debugging messages. Note that you can set/unset at run time through sysfs +config S5P_MIPI_DSI + tristate "Samsung SoC MIPI-DSI support." + depends on FB_S3C && ARCH_S5PV210 + default n + help + This enables support for MIPI-DSI device for samsung SoC S5PV210. + config FB_NUC900 bool "NUC900 LCD framebuffer support" depends on FB && ARCH_W90X900 diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 485e8ed..6d1be1a 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -115,6 +115,8 @@ obj-$(CONFIG_FB_SH7760) += sh7760fb.o obj-$(CONFIG_FB_IMX) += imxfb.o obj-$(CONFIG_FB_S3C) += s3c-fb.o obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o +obj-$(CONFIG_S5P_MIPI_DSI) += s5p-dsim.o s5p_dsim_common.o \ + s5p_dsim_lowlevel.o obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/ diff --git a/drivers/video/s5p-dsim.c b/drivers/video/s5p-dsim.c new file mode 100644 index 0000000..076bc7d --- /dev/null +++ b/drivers/video/s5p-dsim.c @@ -0,0 +1,463 @@ +/* linux/drivers/video/s5p-dsim.c + * + * Samsung MIPI-DSIM driver. + * + * InKi Dae, + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include + +#include "s5p_dsim_common.h" + +struct mipi_lcd_info { + struct list_head list; + struct mipi_lcd_driver *mipi_drv; +}; + +static LIST_HEAD(lcd_info_list); +static DEFINE_MUTEX(mipi_lock); + +struct dsim_global dsim; + +struct s5p_platform_dsim *to_dsim_plat(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + + return (struct s5p_platform_dsim *)pdev->dev.platform_data; +} + +/* + * notifier callback function for fb_blank + * - this function would be called by device specific fb_blank. + */ +static int s5p_dsim_notifier_callback(struct notifier_block *self, + unsigned long event, void *data) +{ + switch (event) { + case FB_BLANK_UNBLANK: + case FB_BLANK_NORMAL: + if (dsim.pd->mipi_power) + dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v, + dsim.r_mipi_1_8v, 1); + + clk_enable(dsim.clock); + + if (dsim.mipi_drv->resume) + dsim.mipi_drv->resume(dsim.dev); + + s5p_dsim_init_dsim(&dsim); + s5p_dsim_init_link(&dsim); + + s5p_dsim_set_hs_enable(&dsim); + s5p_dsim_set_data_transfer_mode(&dsim, + DSIM_TRANSFER_BYCPU, 1); + + /* it needs delay for stabilization */ + mdelay(dsim.pd->delay_for_stabilization); + + if (dsim.mipi_drv->init) + dsim.mipi_drv->init(dsim.dev); + else + dev_warn(dsim.dev, "init func is null.\n"); + + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL); + + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1); + dsim.mipi_ddi_pd->resume_complete = 1; + + dev_dbg(dsim.dev, "FB_BLANK_NORMAL or UNBLANK.\n"); + + break; + case FB_BLANK_POWERDOWN: + dsim.mipi_ddi_pd->resume_complete = 0; + + if (dsim.mipi_drv->suspend) + dsim.mipi_drv->suspend(dsim.dev); + + clk_disable(dsim.clock); + + if (dsim.pd->mipi_power) + dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v, + dsim.r_mipi_1_8v, 0); + + dev_dbg(dsim.dev, "FB_BLANK_POWERDOWN.\n"); + break; + default: + dev_warn(dsim.dev, "unknown FB_BLANK command.\n"); + break; + } + + return 0; +} + +static void s5p_dsim_register_notif(struct device *dev) +{ + memset(&dsim.s3cfb_notif, 0, sizeof(struct notifier_block)); + dsim.s3cfb_notif.notifier_call = s5p_dsim_notifier_callback; +} + +static irqreturn_t s5p_dsim_interrupt_handler(int irq, void *dev_id) +{ + return IRQ_HANDLED; +} + +int s5p_dsim_register_lcd_driver(struct mipi_lcd_driver *lcd_drv) +{ + struct mipi_lcd_info *lcd_info = NULL; + + lcd_info = kmalloc(sizeof(struct mipi_lcd_info), GFP_KERNEL); + if (lcd_info == NULL) + return -ENOMEM; + + lcd_info->mipi_drv = kmalloc(sizeof(struct mipi_lcd_driver), + GFP_KERNEL); + if (lcd_info->mipi_drv == NULL) + return -ENOMEM; + + + memcpy(lcd_info->mipi_drv, lcd_drv, sizeof(struct mipi_lcd_driver)); + + mutex_lock(&mipi_lock); + list_add_tail(&lcd_info->list, &lcd_info_list); + mutex_unlock(&mipi_lock); + + dev_dbg(dsim.dev, "registered panel driver(%s) to mipi-dsi driver.\n", + lcd_drv->name); + + return 0; +} + +/* + * This function is wrapper for changing transfer mode. + * It is used to in panel driver before and after changing gamma value. + */ +int s5p_dsim_change_transfer_mode(unsigned int mode) +{ + if (mode < 0 || mode > 1) { + dev_err(dsim.dev, "mode range should be 0 or 1.\n"); + return -EFAULT; + } + + if (mode == 0) + s5p_dsim_set_data_transfer_mode(&dsim, + DSIM_TRANSFER_BYCPU, mode); + else + s5p_dsim_set_data_transfer_mode(&dsim, + DSIM_TRANSFER_BYLCDC, mode); + + return 0; +} + +struct mipi_lcd_driver *scan_mipi_driver(const char *name) +{ + struct mipi_lcd_info *lcd_info; + struct mipi_lcd_driver *mipi_drv = NULL; + + mutex_lock(&mipi_lock); + + dev_dbg(dsim.dev, "find lcd panel driver(%s).\n", + name); + + list_for_each_entry(lcd_info, &lcd_info_list, list) { + mipi_drv = lcd_info->mipi_drv; + + if ((strcmp(mipi_drv->name, name)) == 0) { + mutex_unlock(&mipi_lock); + dev_dbg(dsim.dev, "found!!!(%s).\n", mipi_drv->name); + return mipi_drv; + } + } + + dev_warn(dsim.dev, "failed to find lcd panel driver(%s).\n", + name); + + mutex_unlock(&mipi_lock); + + return NULL; +} + +static int s5p_dsim_probe(struct platform_device *pdev) +{ + struct resource *res; + int ret = -1; + + dsim.pd = to_dsim_plat(&pdev->dev); + dsim.dev = &pdev->dev; + + /* set dsim config data, dsim lcd config data and lcd panel data. */ + dsim.dsim_info = dsim.pd->dsim_info; + dsim.dsim_lcd_info = dsim.pd->dsim_lcd_info; + dsim.lcd_panel_info = + (struct fb_videomode *) dsim.dsim_lcd_info->lcd_panel_info; + dsim.mipi_ddi_pd = + (struct mipi_ddi_platform_data *) + dsim.dsim_lcd_info->mipi_ddi_pd; + + dsim.mipi_ddi_pd->resume_complete = 0; + + WARN_ON(dsim.pd->mipi_1_1v_name == NULL); + + dsim.r_mipi_1_1v = regulator_get(&pdev->dev, dsim.pd->mipi_1_1v_name); + if (IS_ERR(dsim.r_mipi_1_1v)) { + dev_err(&pdev->dev, "failed to get regulator %s.\n", + dsim.pd->mipi_1_1v_name); + goto regulator_get_err; + } + + WARN_ON(dsim.pd->mipi_1_8v_name == NULL); + + dsim.r_mipi_1_8v = regulator_get(&pdev->dev, dsim.pd->mipi_1_8v_name); + if (IS_ERR(dsim.r_mipi_1_8v)) { + dev_err(&pdev->dev, "failed to get regulator %s.\n", + dsim.pd->mipi_1_8v_name); + goto regulator_get_err; + } + + /* clock */ + dsim.clock = clk_get(&pdev->dev, dsim.pd->clk_name); + if (IS_ERR(dsim.clock)) { + dev_err(&pdev->dev, "failed to get dsim clock source\n"); + return -EINVAL; + } + + clk_enable(dsim.clock); + + /* io memory */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "failed to get io memory region\n"); + ret = -EINVAL; + goto err_clk_disable; + } + + /* request mem region */ + res = request_mem_region(res->start, resource_size(res), pdev->name); + if (!res) { + dev_err(&pdev->dev, "failed to request io memory region\n"); + ret = -EINVAL; + goto err_clk_disable; + } + + /* ioremap for register block */ + dsim.reg_base = ioremap(res->start, resource_size(res)); + if (!dsim.reg_base) { + dev_err(&pdev->dev, "failed to remap io region\n"); + ret = -EINVAL; + goto err_clk_disable; + } + + /* it is used for MIPI-DSI based lcd panel driver. */ + dsim.mipi_ddi_pd->dsim_data = (void *)&dsim; + + /* + * it uses frame done interrupt handler + * only in case of MIPI Video mode. + */ + if (dsim.dsim_lcd_info->e_interface == DSIM_VIDEO) { + dsim.irq = platform_get_irq(pdev, 0); + if (request_irq(dsim.irq, s5p_dsim_interrupt_handler, + IRQF_DISABLED, "mipi-dsi", &dsim)) { + dev_err(&pdev->dev, "request_irq failed.\n"); + goto err_trigger_irq; + } + } + + if (dsim.pd->mipi_power) + dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v, + dsim.r_mipi_1_8v, 1); + else { + dev_err(&pdev->dev, "mipi_power is NULL.\n"); + goto mipi_power_err; + } + + /* find lcd panel driver registered to mipi-dsi driver. */ + dsim.mipi_drv = scan_mipi_driver(dsim.pd->lcd_panel_name); + if (dsim.mipi_drv == NULL) { + dev_err(&pdev->dev, "mipi_drv is NULL.\n"); + goto mipi_drv_err; + } + + /* set lcd panel driver link */ + ret = dsim.mipi_drv->set_link(dsim.mipi_ddi_pd); + if (ret < 0) { + dev_err(&pdev->dev, "failed to set link.\n"); + goto mipi_drv_err; + } + + dsim.mipi_drv->probe(&pdev->dev); + + s5p_dsim_init_dsim(&dsim); + s5p_dsim_init_link(&dsim); + + s5p_dsim_set_hs_enable(&dsim); + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1); + + /* it needs delay for stabilization */ + mdelay(dsim.pd->delay_for_stabilization); + + /* initialize lcd panel */ + if (dsim.mipi_drv->init) + dsim.mipi_drv->init(&pdev->dev); + else + dev_warn(&pdev->dev, "init func is null.\n"); + + if (dsim.mipi_drv->display_on) + dsim.mipi_drv->display_on(&pdev->dev); + else + dev_warn(&pdev->dev, "display_on func is null.\n"); + + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL); + + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1); + + s5p_dsim_register_notif(&pdev->dev); + + /* in case of command mode, trigger. */ + if (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) { + if (dsim.pd->trigger) + dsim.pd->trigger(registered_fb[0]); + else + dev_warn(&pdev->dev, "trigger is null.\n"); + } + + dev_info(&pdev->dev, "mipi-dsi driver(%s mode) has been probed.\n", + (dsim.dsim_lcd_info->e_interface == DSIM_COMMAND) ? + "CPU" : "RGB"); + + return 0; + +err_trigger_irq: +mipi_drv_err: + dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v, dsim.r_mipi_1_8v, 0); + +mipi_power_err: + iounmap((void __iomem *) dsim.reg_base); + +err_clk_disable: + clk_disable(dsim.clock); + +regulator_get_err: + + return ret; + +} + +static int s5p_dsim_remove(struct platform_device *pdev) +{ + return 0; +} + +#ifdef CONFIG_PM +int s5p_dsim_suspend(struct platform_device *pdev, pm_message_t state) +{ + dsim.mipi_ddi_pd->resume_complete = 0; + + if (dsim.mipi_drv->suspend) + dsim.mipi_drv->suspend(&pdev->dev); + + clk_disable(dsim.clock); + + if (dsim.pd->mipi_power) + dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v, + dsim.r_mipi_1_8v, 0); + + return 0; +} + +int s5p_dsim_resume(struct platform_device *pdev) +{ + if (dsim.pd->mipi_power) + dsim.pd->mipi_power(&dsim, dsim.r_mipi_1_1v, + dsim.r_mipi_1_8v, 1); + + clk_enable(dsim.clock); + + if (dsim.mipi_drv->resume) + dsim.mipi_drv->resume(&pdev->dev); + + s5p_dsim_init_dsim(&dsim); + s5p_dsim_init_link(&dsim); + + s5p_dsim_set_hs_enable(&dsim); + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYCPU, 1); + + /* it needs delay for stabilization */ + mdelay(dsim.pd->delay_for_stabilization); + + /* initialize lcd panel */ + if (dsim.mipi_drv->init) + dsim.mipi_drv->init(&pdev->dev); + else + dev_warn(&pdev->dev, "init func is null.\n"); + + s5p_dsim_set_display_mode(&dsim, dsim.dsim_lcd_info, NULL); + + s5p_dsim_set_data_transfer_mode(&dsim, DSIM_TRANSFER_BYLCDC, 1); + + dsim.mipi_ddi_pd->resume_complete = 1; + + return 0; +} +#else +#define s5p_dsim_suspend NULL +#define s5p_dsim_resume NULL +#endif + +static struct platform_driver s5p_dsim_driver = { + .probe = s5p_dsim_probe, + .remove = s5p_dsim_remove, + .suspend = s5p_dsim_suspend, + .resume = s5p_dsim_resume, + .driver = { + .name = "s5p-dsim", + .owner = THIS_MODULE, + }, +}; + +static int s5p_dsim_register(void) +{ + platform_driver_register(&s5p_dsim_driver); + + return 0; +} + +static void s5p_dsim_unregister(void) +{ + platform_driver_unregister(&s5p_dsim_driver); +} + +module_init(s5p_dsim_register); +module_exit(s5p_dsim_unregister); + +MODULE_AUTHOR("InKi Dae "); +MODULE_DESCRIPTION("Samusung MIPI-DSIM driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/video/s5p_dsim_common.c b/drivers/video/s5p_dsim_common.c new file mode 100644 index 0000000..ea4dba2 --- /dev/null +++ b/drivers/video/s5p_dsim_common.c @@ -0,0 +1,691 @@ +/* linux/drivers/video/s5p_dsim_common.c + * + * Samsung MIPI-DSIM common driver. + * + * InKi Dae, + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include