This patch adds several machine specific header files that including necessary structures and dsim device setup codes. struct dsim_config - define clock info, data lane count and video mode info for MIPI-DSI Controller. struct dsim_lcd_config - define interface mode, channel ID, Pixel format and so on. struct s5p_platform_dsim - define callbacks for initializing D-PHY, MIPI reset and trigger releated interfaces of s3c-fb.c file. struct mipi_ddi_platform_data - define following callbacks. - a function for transferring and receiving command data to mipi based lcd panel. - a function for getting framedone status of mipi-dsi controller. - a function for clearing framedone interrupt of mipi-dsi controller. - a function for checking i80 framedone status of display controller.(fimd) - a function for triggering to display controller.(fimd) Signed-off-by: Donghwa Lee <dh09.lee@xxxxxxxxxxx> Signed-off-by: InKi Dae <inki.dae@xxxxxxxxxxx> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> --- arch/arm/mach-s5pv210/include/mach/regs-clock.h | 1 + arch/arm/plat-samsung/Makefile | 3 + arch/arm/plat-samsung/dev-dsim.c | 149 ++++++++ arch/arm/plat-samsung/include/plat/dsim.h | 447 +++++++++++++++++++++++ arch/arm/plat-samsung/include/plat/mipi_ddi.h | 98 +++++ arch/arm/plat-samsung/include/plat/regs-dsim.h | 281 ++++++++++++++ arch/arm/plat-samsung/setup-dsim.c | 144 ++++++++ 7 files changed, 1123 insertions(+), 0 deletions(-) create mode 100644 arch/arm/plat-samsung/dev-dsim.c create mode 100644 arch/arm/plat-samsung/include/plat/dsim.h create mode 100644 arch/arm/plat-samsung/include/plat/mipi_ddi.h create mode 100644 arch/arm/plat-samsung/include/plat/regs-dsim.h create mode 100644 arch/arm/plat-samsung/setup-dsim.c diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h index 499aef7..083c32d 100644 --- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h +++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h @@ -164,6 +164,7 @@ /* MIPI */ #define S5P_MIPI_DPHY_EN (3) +#define S5P_MIPI_M_RESETN (1 << 1) /* S5P_DAC_CONTROL */ #define S5P_DAC_ENABLE (1) diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index 4d8ff92..bb7e6e1 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -54,6 +54,9 @@ obj-$(CONFIG_SAMSUNG_DEV_IDE) += dev-ide.o obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o obj-$(CONFIG_SAMSUNG_DEV_KEYPAD) += dev-keypad.o +# Device setup - MIPI-DSI +obj-$(CONFIG_S5P_MIPI_DSI) += setup-dsim.o + # DMA support obj-$(CONFIG_S3C_DMA) += dma.o diff --git a/arch/arm/plat-samsung/dev-dsim.c b/arch/arm/plat-samsung/dev-dsim.c new file mode 100644 index 0000000..5bac5ef --- /dev/null +++ b/arch/arm/plat-samsung/dev-dsim.c @@ -0,0 +1,149 @@ +/* linux/arch/arm/plat-s5pc11x/dev-dsim.c + * + * Copyright 2009 Samsung Electronics + * InKi Dae <inki.dae@xxxxxxxxxxx> + * + * S5PC1XX series device definition for MIPI-DSIM + * + * 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 <linux/kernel.h> +#include <linux/string.h> +#include <linux/platform_device.h> +#include <linux/regulator/consumer.h> +#include <linux/fb.h> + +#include <mach/map.h> +#include <asm/irq.h> + +#include <plat/devs.h> +#include <plat/cpu.h> +#include <plat/fb.h> + +#include <plat/dsim.h> +#include <plat/mipi_ddi.h> + +static struct dsim_config dsim_info = { + /* main frame fifo auto flush at VSYNC pulse */ + .auto_flush = false, + .eot_disable = false, + + .auto_vertical_cnt = false, + .hse = false, + .hfp = false, + .hbp = false, + .hsa = false, + + .e_no_data_lane = DSIM_DATA_LANE_2, + .e_byte_clk = DSIM_PLL_OUT_DIV8, + + /* + * =========================================== + * | 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 | + * ------------------------------------------- + */ + + /* 472MHz: LSI Recommended */ + .p = 3, + .m = 118, + .s = 1, + + /* D-PHY PLL stable time spec :min = 200usec ~ max 400usec */ + .pll_stable_time = 500, + + .esc_clk = 10 * 1000000, /* escape clk : 10MHz */ + + /* stop state holding counter after bta change count 0 ~ 0xfff */ + .stop_holding_cnt = 0x0f, + .bta_timeout = 0xff, /* bta timeout 0 ~ 0xff */ + .rx_timeout = 0xffff, /* lp rx timeout 0 ~ 0xffff */ + + .e_lane_swap = DSIM_NO_CHANGE, +}; + +/* define ddi platform data based on MIPI-DSI. */ +static struct mipi_ddi_platform_data mipi_ddi_pd = { + .cmd_write = s5p_dsim_wr_data, + .cmd_read = NULL, + .get_dsim_frame_done = s5p_dsim_get_frame_done_status, + .clear_dsim_frame_done = s5p_dsim_clear_frame_done, + .change_dsim_transfer_mode = s5p_dsim_change_transfer_mode, + .get_fb_frame_done = s3c_fb_is_i80_frame_done, + .trigger = s3c_fb_set_trigger, +}; + +static struct dsim_lcd_config dsim_lcd_info = { + .e_interface = DSIM_COMMAND, + .parameter[DSI_VIRTUAL_CH_ID] = (unsigned int)DSIM_VIRTUAL_CH_0, + .parameter[DSI_FORMAT] = (unsigned int)DSIM_24BPP_888, + .parameter[DSI_VIDEO_MODE_SEL] = (unsigned int)DSIM_BURST, + .mipi_ddi_pd = (void *)&mipi_ddi_pd, +}; + +static struct resource s5p_dsim_resource[] = { + [0] = { + .start = S5PV210_PA_DSIM, + .end = S5PV210_PA_DSIM + S5PV210_SZ_DSIM - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_MIPI_DSI, + .end = IRQ_MIPI_DSI, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct s5p_platform_dsim dsim_platform_data = { + .clk_name = "dsim", + .mipi_1_1v_name = "VMIPI_1.1V", + .mipi_1_8v_name = "VMIPI_1.8V", + .dsim_info = &dsim_info, + .dsim_lcd_info = &dsim_lcd_info, + + .mipi_power = s5p_dsim_mipi_power, + .part_reset = s5p_dsim_part_reset, + .init_d_phy = s5p_dsim_init_d_phy, + .get_fb_frame_done = s3c_fb_is_i80_frame_done, + .trigger = s3c_fb_set_trigger, + + .platform_rev = 1, + + /* + * the stable time of needing to write data on SFR + * when the mipi mode becomes LP mode. + */ + .delay_for_stabilization = 600, +}; + +struct platform_device s5p_device_dsim = { + .name = "s5p-dsim", + .id = 0, + .num_resources = ARRAY_SIZE(s5p_dsim_resource), + .resource = s5p_dsim_resource, + .dev = { + .platform_data = (void *)&dsim_platform_data, + }, +}; diff --git a/arch/arm/plat-samsung/include/plat/dsim.h b/arch/arm/plat-samsung/include/plat/dsim.h new file mode 100644 index 0000000..9c1d6a3 --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/dsim.h @@ -0,0 +1,447 @@ +/* linux/arm/arch/mach-s5pc110/include/mach/dsim.h + * + * Platform data header for Samsung MIPI-DSIM. + * + * Copyright (c) 2009 Samsung Electronics + * InKi Dae <inki.dae@xxxxxxxxxxx> + * + * 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 <linux/device.h> + +/* h/w configuration */ +#define MIPI_FIN 24000000 +#define DSIM_TIMEOUT_MS 5000 +#define DSIM_NO_OF_INTERRUPT 26 + +#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. */ +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. */ +extern int s5p_dsim_get_frame_done_status(void *dsim_data); + +/* clear framedone interrupt of mipi-dsi controller. */ +extern int s5p_dsim_clear_frame_done(void *dsim_data); + +/* wrapper function for changing transfer mode. */ +extern int s5p_dsim_change_transfer_mode(unsigned int mode); + +#endif /* _DSIM_H */ diff --git a/arch/arm/plat-samsung/include/plat/mipi_ddi.h b/arch/arm/plat-samsung/include/plat/mipi_ddi.h new file mode 100644 index 0000000..d9a82b7 --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/mipi_ddi.h @@ -0,0 +1,98 @@ +/* linux/arm/arch/mach-s5pc110/include/mach/mipi_ddi.h + * + * definitions for DDI based MIPI-DSI. + * + * Copyright (c) 2009 Samsung Electronics + * InKi Dae <inki.dae@xxxxxxxxxxx> + * + * 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_model { + S6DR117 = 0, +}; + +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-samsung/include/plat/regs-dsim.h b/arch/arm/plat-samsung/include/plat/regs-dsim.h new file mode 100644 index 0000000..dc83089 --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/regs-dsim.h @@ -0,0 +1,281 @@ +/* linux/arch/arm/plat-s5pc11x/include/plat/regs-dsim.h + * + * Register definition file for Samsung MIPI-DSIM driver + * + * InKi Dae <inki.dae@xxxxxxxxxxx>, 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/arch/arm/plat-samsung/setup-dsim.c b/arch/arm/plat-samsung/setup-dsim.c new file mode 100644 index 0000000..874efa0 --- /dev/null +++ b/arch/arm/plat-samsung/setup-dsim.c @@ -0,0 +1,144 @@ +/* + * S5PC110 MIPI-DSIM driver. + * + * Author: InKi Dae <inki.dae@xxxxxxxxxxx> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/regulator/consumer.h> + +#include <mach/map.h> +#include <mach/regs-clock.h> + +#include <plat/dsim.h> +#include <plat/clock.h> +#include <plat/regs-dsim.h> + +static int s5p_dsim_enable_d_phy(struct dsim_global *dsim, unsigned int enable) +{ + unsigned int reg; + + WARN_ON(dsim == NULL); + + reg = readl(S5P_MIPI_CONTROL) & ~(1 << 0); + reg |= (enable << 0); + writel(reg, S5P_MIPI_CONTROL); + + dev_dbg(dsim->dev, "%s : %x\n", __func__, reg); + + return 0; +} + +static int s5p_dsim_enable_dsi_master(struct dsim_global *dsim, + unsigned int enable) +{ + unsigned int reg; + + WARN_ON(dsim == NULL); + + reg = readl(S5P_MIPI_CONTROL) & ~(1 << 2); + reg |= (enable << 2); + writel(reg, S5P_MIPI_CONTROL); + + dev_dbg(dsim->dev, "%s : %x\n", __func__, reg); + + return 0; +} + +int s5p_dsim_part_reset(struct dsim_global *dsim) +{ + WARN_ON(dsim == NULL); + + writel(S5P_MIPI_M_RESETN, S5P_MIPI_PHY_CON0); + + dev_dbg(dsim->dev, "%s\n", __func__); + + return 0; +} + +int s5p_dsim_init_d_phy(struct dsim_global *dsim) +{ + WARN_ON(dsim == NULL); + + /** + * DPHY and Master block must be enabled at the system initialization + * step before data access from/to DPHY begins. + */ + s5p_dsim_enable_d_phy(dsim, 1); + + s5p_dsim_enable_dsi_master(dsim, 1); + + dev_dbg(dsim->dev, "%s\n", __func__); + + return 0; +} + +int s5p_dsim_mipi_power(struct dsim_global *dsim, struct regulator *p_mipi_1_1v, + struct regulator *p_mipi_1_8v, unsigned int enable) +{ + int ret = -1; + + WARN_ON(dsim == NULL); + + if (IS_ERR(p_mipi_1_1v) || IS_ERR(p_mipi_1_8v)) { + dev_err(dsim->dev, "p_mipi_1_1v or p_mipi_1_8v is NULL.\n"); + return -EINVAL; + } + + if (enable) { + if (p_mipi_1_1v) + ret = regulator_enable(p_mipi_1_1v); + + if (ret < 0) { + dev_err(dsim->dev, + "failed to enable regulator mipi_1_1v.\n"); + return ret; + } + + if (p_mipi_1_8v) + ret = regulator_enable(p_mipi_1_8v); + + if (ret < 0) { + dev_err(dsim->dev, + "failed to enable regulator mipi_1_8v.\n"); + return ret; + } + } else { + if (p_mipi_1_1v) + ret = regulator_force_disable(p_mipi_1_1v); + if (ret < 0) { + dev_err(dsim->dev, + "failed to disable regulator mipi_1_1v.\n"); + return ret; + } + + if (p_mipi_1_8v) + ret = regulator_force_disable(p_mipi_1_8v); + if (ret < 0) { + dev_err(dsim->dev, + "failed to disable regulator mipi_1_8v.\n"); + return ret; + } + } + + return ret; +} -- 1.6.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html