| /* linux/drivers/video/exynos/s6e8ax0.c |
| * |
| * MIPI-DSI based s6e8ax0 AMOLED lcd 4.65 inch panel driver. |
| * |
| * Inki Dae, <inki.dae@samsung.com> |
| * Donghwa Lee, <dh09.lee@samsung.com> |
| * |
| * 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/module.h> |
| #include <linux/kernel.h> |
| #include <linux/errno.h> |
| #include <linux/mutex.h> |
| #include <linux/wait.h> |
| #include <linux/ctype.h> |
| #include <linux/io.h> |
| #include <linux/delay.h> |
| #include <linux/irq.h> |
| #include <linux/interrupt.h> |
| #include <linux/lcd.h> |
| #include <linux/fb.h> |
| #include <linux/backlight.h> |
| #include <linux/regulator/consumer.h> |
| |
| #include <video/mipi_display.h> |
| #include <video/exynos_mipi_dsim.h> |
| |
| #define LDI_MTP_LENGTH 24 |
| #define DSIM_PM_STABLE_TIME 10 |
| #define MIN_BRIGHTNESS 0 |
| #define MAX_BRIGHTNESS 24 |
| #define GAMMA_TABLE_COUNT 26 |
| |
| #define POWER_IS_ON(pwr) ((pwr) == FB_BLANK_UNBLANK) |
| #define POWER_IS_OFF(pwr) ((pwr) == FB_BLANK_POWERDOWN) |
| #define POWER_IS_NRM(pwr) ((pwr) == FB_BLANK_NORMAL) |
| |
| #define lcd_to_master(a) (a->dsim_dev->master) |
| #define lcd_to_master_ops(a) ((lcd_to_master(a))->master_ops) |
| |
| enum { |
| DSIM_NONE_STATE = 0, |
| DSIM_RESUME_COMPLETE = 1, |
| DSIM_FRAME_DONE = 2, |
| }; |
| |
| struct s6e8ax0 { |
| struct device *dev; |
| unsigned int power; |
| unsigned int id; |
| unsigned int gamma; |
| unsigned int acl_enable; |
| unsigned int cur_acl; |
| |
| struct lcd_device *ld; |
| struct backlight_device *bd; |
| |
| struct mipi_dsim_lcd_device *dsim_dev; |
| struct lcd_platform_data *ddi_pd; |
| struct mutex lock; |
| bool enabled; |
| }; |
| |
| |
| static struct regulator_bulk_data supplies[] = { |
| { .supply = "vdd3", }, |
| { .supply = "vci", }, |
| }; |
| |
| static void s6e8ax0_regulator_enable(struct s6e8ax0 *lcd) |
| { |
| int ret = 0; |
| struct lcd_platform_data *pd = NULL; |
| |
| pd = lcd->ddi_pd; |
| mutex_lock(&lcd->lock); |
| if (!lcd->enabled) { |
| ret = regulator_bulk_enable(ARRAY_SIZE(supplies), supplies); |
| if (ret) |
| goto out; |
| |
| lcd->enabled = true; |
| } |
| msleep(pd->power_on_delay); |
| out: |
| mutex_unlock(&lcd->lock); |
| } |
| |
| static void s6e8ax0_regulator_disable(struct s6e8ax0 *lcd) |
| { |
| int ret = 0; |
| |
| mutex_lock(&lcd->lock); |
| if (lcd->enabled) { |
| ret = regulator_bulk_disable(ARRAY_SIZE(supplies), supplies); |
| if (ret) |
| goto out; |
| |
| lcd->enabled = false; |
| } |
| out: |
| mutex_unlock(&lcd->lock); |
| } |
| |
| static const unsigned char s6e8ax0_22_gamma_30[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xf5, 0x00, 0xff, 0xad, 0xaf, |
| 0xbA, 0xc3, 0xd8, 0xc5, 0x9f, 0xc6, 0x9e, 0xc1, 0xdc, 0xc0, |
| 0x00, 0x61, 0x00, 0x5a, 0x00, 0x74, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_50[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xe8, 0x1f, 0xf7, 0xad, 0xc0, |
| 0xb5, 0xc4, 0xdc, 0xc4, 0x9e, 0xc6, 0x9c, 0xbb, 0xd8, 0xbb, |
| 0x00, 0x70, 0x00, 0x68, 0x00, 0x86, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_60[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xde, 0x1f, 0xef, 0xad, 0xc4, |
| 0xb3, 0xc3, 0xdd, 0xc4, 0x9e, 0xc6, 0x9c, 0xbc, 0xd6, 0xba, |
| 0x00, 0x75, 0x00, 0x6e, 0x00, 0x8d, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_70[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xd8, 0x1f, 0xe7, 0xaf, 0xc8, |
| 0xb4, 0xc4, 0xdd, 0xc3, 0x9d, 0xc6, 0x9c, 0xbb, 0xd6, 0xb9, |
| 0x00, 0x7a, 0x00, 0x72, 0x00, 0x93, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_80[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xc9, 0x1f, 0xde, 0xae, 0xc9, |
| 0xb1, 0xc3, 0xdd, 0xc2, 0x9d, 0xc5, 0x9b, 0xbc, 0xd6, 0xbb, |
| 0x00, 0x7f, 0x00, 0x77, 0x00, 0x99, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_90[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xc7, 0x1f, 0xd9, 0xb0, 0xcc, |
| 0xb2, 0xc3, 0xdc, 0xc1, 0x9c, 0xc6, 0x9c, 0xbc, 0xd4, 0xb9, |
| 0x00, 0x83, 0x00, 0x7b, 0x00, 0x9e, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_100[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xbd, 0x80, 0xcd, 0xba, 0xce, |
| 0xb3, 0xc4, 0xde, 0xc3, 0x9c, 0xc4, 0x9, 0xb8, 0xd3, 0xb6, |
| 0x00, 0x88, 0x00, 0x80, 0x00, 0xa5, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_120[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb9, 0x95, 0xc8, 0xb1, 0xcf, |
| 0xb2, 0xc6, 0xdf, 0xc5, 0x9b, 0xc3, 0x99, 0xb6, 0xd2, 0xb6, |
| 0x00, 0x8f, 0x00, 0x86, 0x00, 0xac, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_130[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb7, 0xa0, 0xc7, 0xb1, 0xd0, |
| 0xb2, 0xc4, 0xdd, 0xc3, 0x9a, 0xc3, 0x98, 0xb6, 0xd0, 0xb4, |
| 0x00, 0x92, 0x00, 0x8a, 0x00, 0xb1, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_140[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb7, 0xa0, 0xc5, 0xb2, 0xd0, |
| 0xb3, 0xc3, 0xde, 0xc3, 0x9b, 0xc2, 0x98, 0xb6, 0xd0, 0xb4, |
| 0x00, 0x95, 0x00, 0x8d, 0x00, 0xb5, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_150[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb3, 0xa0, 0xc2, 0xb2, 0xd0, |
| 0xb2, 0xc1, 0xdd, 0xc2, 0x9b, 0xc2, 0x98, 0xb4, 0xcf, 0xb1, |
| 0x00, 0x99, 0x00, 0x90, 0x00, 0xba, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_160[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xaf, 0xa5, 0xbf, 0xb0, 0xd0, |
| 0xb1, 0xc3, 0xde, 0xc2, 0x99, 0xc1, 0x97, 0xb4, 0xce, 0xb1, |
| 0x00, 0x9c, 0x00, 0x93, 0x00, 0xbe, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_170[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xaf, 0xb5, 0xbf, 0xb1, 0xd1, |
| 0xb1, 0xc3, 0xde, 0xc3, 0x99, 0xc0, 0x96, 0xb4, 0xce, 0xb1, |
| 0x00, 0x9f, 0x00, 0x96, 0x00, 0xc2, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_180[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xaf, 0xb7, 0xbe, 0xb3, 0xd2, |
| 0xb3, 0xc3, 0xde, 0xc2, 0x97, 0xbf, 0x95, 0xb4, 0xcd, 0xb1, |
| 0x00, 0xa2, 0x00, 0x99, 0x00, 0xc5, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_190[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xaf, 0xb9, 0xbe, 0xb2, 0xd2, |
| 0xb2, 0xc3, 0xdd, 0xc3, 0x98, 0xbf, 0x95, 0xb2, 0xcc, 0xaf, |
| 0x00, 0xa5, 0x00, 0x9c, 0x00, 0xc9, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_200[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xaf, 0xb9, 0xbc, 0xb2, 0xd2, |
| 0xb1, 0xc4, 0xdd, 0xc3, 0x97, 0xbe, 0x95, 0xb1, 0xcb, 0xae, |
| 0x00, 0xa8, 0x00, 0x9f, 0x00, 0xcd, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_210[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb1, 0xc1, 0xbd, 0xb1, 0xd1, |
| 0xb1, 0xc2, 0xde, 0xc2, 0x97, 0xbe, 0x94, 0xB0, 0xc9, 0xad, |
| 0x00, 0xae, 0x00, 0xa4, 0x00, 0xd4, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_220[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb1, 0xc7, 0xbd, 0xb1, 0xd1, |
| 0xb1, 0xc2, 0xdd, 0xc2, 0x97, 0xbd, 0x94, 0xb0, 0xc9, 0xad, |
| 0x00, 0xad, 0x00, 0xa2, 0x00, 0xd3, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_230[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb1, 0xc3, 0xbd, 0xb2, 0xd1, |
| 0xb1, 0xc3, 0xdd, 0xc1, 0x96, 0xbd, 0x94, 0xb0, 0xc9, 0xad, |
| 0x00, 0xb0, 0x00, 0xa7, 0x00, 0xd7, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_240[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb1, 0xcb, 0xbd, 0xb1, 0xd2, |
| 0xb1, 0xc3, 0xdD, 0xc2, 0x95, 0xbd, 0x93, 0xaf, 0xc8, 0xab, |
| 0x00, 0xb3, 0x00, 0xa9, 0x00, 0xdb, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_250[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb3, 0xcc, 0xbe, 0xb0, 0xd2, |
| 0xb0, 0xc3, 0xdD, 0xc2, 0x94, 0xbc, 0x92, 0xae, 0xc8, 0xab, |
| 0x00, 0xb6, 0x00, 0xab, 0x00, 0xde, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_260[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb3, 0xd0, 0xbe, 0xaf, 0xd1, |
| 0xaf, 0xc2, 0xdd, 0xc1, 0x96, 0xbc, 0x93, 0xaf, 0xc8, 0xac, |
| 0x00, 0xb7, 0x00, 0xad, 0x00, 0xe0, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_270[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb2, 0xcF, 0xbd, 0xb0, 0xd2, |
| 0xaf, 0xc2, 0xdc, 0xc1, 0x95, 0xbd, 0x93, 0xae, 0xc6, 0xaa, |
| 0x00, 0xba, 0x00, 0xb0, 0x00, 0xe4, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_280[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb2, 0xd0, 0xbd, 0xaf, 0xd0, |
| 0xad, 0xc4, 0xdd, 0xc3, 0x95, 0xbd, 0x93, 0xac, 0xc5, 0xa9, |
| 0x00, 0xbd, 0x00, 0xb2, 0x00, 0xe7, |
| }; |
| |
| static const unsigned char s6e8ax0_22_gamma_300[] = { |
| 0xfa, 0x01, 0x60, 0x10, 0x60, 0xb5, 0xd3, 0xbd, 0xb1, 0xd2, |
| 0xb0, 0xc0, 0xdc, 0xc0, 0x94, 0xba, 0x91, 0xac, 0xc5, 0xa9, |
| 0x00, 0xc2, 0x00, 0xb7, 0x00, 0xed, |
| }; |
| |
| static const unsigned char *s6e8ax0_22_gamma_table[] = { |
| s6e8ax0_22_gamma_30, |
| s6e8ax0_22_gamma_50, |
| s6e8ax0_22_gamma_60, |
| s6e8ax0_22_gamma_70, |
| s6e8ax0_22_gamma_80, |
| s6e8ax0_22_gamma_90, |
| s6e8ax0_22_gamma_100, |
| s6e8ax0_22_gamma_120, |
| s6e8ax0_22_gamma_130, |
| s6e8ax0_22_gamma_140, |
| s6e8ax0_22_gamma_150, |
| s6e8ax0_22_gamma_160, |
| s6e8ax0_22_gamma_170, |
| s6e8ax0_22_gamma_180, |
| s6e8ax0_22_gamma_190, |
| s6e8ax0_22_gamma_200, |
| s6e8ax0_22_gamma_210, |
| s6e8ax0_22_gamma_220, |
| s6e8ax0_22_gamma_230, |
| s6e8ax0_22_gamma_240, |
| s6e8ax0_22_gamma_250, |
| s6e8ax0_22_gamma_260, |
| s6e8ax0_22_gamma_270, |
| s6e8ax0_22_gamma_280, |
| s6e8ax0_22_gamma_300, |
| }; |
| |
| static void s6e8ax0_panel_cond(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| |
| static const unsigned char data_to_send[] = { |
| 0xf8, 0x3d, 0x35, 0x00, 0x00, 0x00, 0x93, 0x00, 0x3c, 0x7d, |
| 0x08, 0x27, 0x7d, 0x3f, 0x00, 0x00, 0x00, 0x20, 0x04, 0x08, |
| 0x6e, 0x00, 0x00, 0x00, 0x02, 0x08, 0x08, 0x23, 0x23, 0xc0, |
| 0xc8, 0x08, 0x48, 0xc1, 0x00, 0xc1, 0xff, 0xff, 0xc8 |
| }; |
| static const unsigned char data_to_send_panel_reverse[] = { |
| 0xf8, 0x19, 0x35, 0x00, 0x00, 0x00, 0x93, 0x00, 0x3c, 0x7d, |
| 0x08, 0x27, 0x7d, 0x3f, 0x00, 0x00, 0x00, 0x20, 0x04, 0x08, |
| 0x6e, 0x00, 0x00, 0x00, 0x02, 0x08, 0x08, 0x23, 0x23, 0xc0, |
| 0xc1, 0x01, 0x41, 0xc1, 0x00, 0xc1, 0xf6, 0xf6, 0xc1 |
| }; |
| |
| if (lcd->dsim_dev->panel_reverse) |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send_panel_reverse, |
| ARRAY_SIZE(data_to_send_panel_reverse)); |
| else |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_display_cond(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xf2, 0x80, 0x03, 0x0d |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| /* Gamma 2.2 Setting (200cd, 7500K, 10MPCD) */ |
| static void s6e8ax0_gamma_cond(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| unsigned int gamma = lcd->bd->props.brightness; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| s6e8ax0_22_gamma_table[gamma], |
| GAMMA_TABLE_COUNT); |
| } |
| |
| static void s6e8ax0_gamma_update(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xf7, 0x03 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_SHORT_WRITE_PARAM, data_to_send, |
| ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_etc_cond1(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xd1, 0xfe, 0x80, 0x00, 0x01, 0x0b, 0x00, 0x00, 0x40, |
| 0x0d, 0x00, 0x00 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_etc_cond2(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xb6, 0x0c, 0x02, 0x03, 0x32, 0xff, 0x44, 0x44, 0xc0, |
| 0x00 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_etc_cond3(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xe1, 0x10, 0x1c, 0x17, 0x08, 0x1d |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_etc_cond4(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xe2, 0xed, 0x07, 0xc3, 0x13, 0x0d, 0x03 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_etc_cond5(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xf4, 0xcf, 0x0a, 0x12, 0x10, 0x19, 0x33, 0x02 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| static void s6e8ax0_etc_cond6(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xe3, 0x40 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_SHORT_WRITE_PARAM, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_etc_cond7(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xe4, 0x00, 0x00, 0x14, 0x80, 0x00, 0x00, 0x00 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_elvss_set(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xb1, 0x04, 0x00 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_elvss_nvm_set(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xd9, 0x5c, 0x20, 0x0c, 0x0f, 0x41, 0x00, 0x10, 0x11, |
| 0x12, 0xd1, 0x00, 0x00, 0x00, 0x00, 0x80, 0xcb, 0xed, |
| 0x64, 0xaf |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_sleep_in(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0x10, 0x00 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_SHORT_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_sleep_out(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0x11, 0x00 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_SHORT_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_display_on(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0x29, 0x00 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_SHORT_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_display_off(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0x28, 0x00 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_SHORT_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_apply_level2_key(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xf0, 0x5a, 0x5a |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_acl_on(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xc0, 0x01 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_SHORT_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| static void s6e8ax0_acl_off(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| static const unsigned char data_to_send[] = { |
| 0xc0, 0x00 |
| }; |
| |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_SHORT_WRITE, |
| data_to_send, ARRAY_SIZE(data_to_send)); |
| } |
| |
| /* Full white 50% reducing setting */ |
| static void s6e8ax0_acl_ctrl_set(struct s6e8ax0 *lcd) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| /* Full white 50% reducing setting */ |
| static const unsigned char cutoff_50[] = { |
| 0xc1, 0x47, 0x53, 0x13, 0x53, 0x00, 0x00, 0x02, 0xcf, |
| 0x00, 0x00, 0x04, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x01, 0x08, 0x0f, 0x16, 0x1d, 0x24, 0x2a, 0x31, 0x38, |
| 0x3f, 0x46 |
| }; |
| /* Full white 45% reducing setting */ |
| static const unsigned char cutoff_45[] = { |
| 0xc1, 0x47, 0x53, 0x13, 0x53, 0x00, 0x00, 0x02, 0xcf, |
| 0x00, 0x00, 0x04, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x01, 0x07, 0x0d, 0x13, 0x19, 0x1f, 0x25, 0x2b, 0x31, |
| 0x37, 0x3d |
| }; |
| /* Full white 40% reducing setting */ |
| static const unsigned char cutoff_40[] = { |
| 0xc1, 0x47, 0x53, 0x13, 0x53, 0x00, 0x00, 0x02, 0xcf, |
| 0x00, 0x00, 0x04, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x01, 0x06, 0x0c, 0x11, 0x16, 0x1c, 0x21, 0x26, 0x2b, |
| 0x31, 0x36 |
| }; |
| |
| if (lcd->acl_enable) { |
| if (lcd->cur_acl == 0) { |
| if (lcd->gamma == 0 || lcd->gamma == 1) { |
| s6e8ax0_acl_off(lcd); |
| dev_dbg(&lcd->ld->dev, |
| "cur_acl=%d\n", lcd->cur_acl); |
| } else |
| s6e8ax0_acl_on(lcd); |
| } |
| switch (lcd->gamma) { |
| case 0: /* 30cd */ |
| s6e8ax0_acl_off(lcd); |
| lcd->cur_acl = 0; |
| break; |
| case 1 ... 3: /* 50cd ~ 90cd */ |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_LONG_WRITE, |
| cutoff_40, |
| ARRAY_SIZE(cutoff_40)); |
| lcd->cur_acl = 40; |
| break; |
| case 4 ... 7: /* 120cd ~ 210cd */ |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_LONG_WRITE, |
| cutoff_45, |
| ARRAY_SIZE(cutoff_45)); |
| lcd->cur_acl = 45; |
| break; |
| case 8 ... 10: /* 220cd ~ 300cd */ |
| ops->cmd_write(lcd_to_master(lcd), |
| MIPI_DSI_DCS_LONG_WRITE, |
| cutoff_50, |
| ARRAY_SIZE(cutoff_50)); |
| lcd->cur_acl = 50; |
| break; |
| default: |
| break; |
| } |
| } else { |
| s6e8ax0_acl_off(lcd); |
| lcd->cur_acl = 0; |
| dev_dbg(&lcd->ld->dev, "cur_acl = %d\n", lcd->cur_acl); |
| } |
| } |
| |
| static void s6e8ax0_read_id(struct s6e8ax0 *lcd, u8 *mtp_id) |
| { |
| unsigned int ret; |
| unsigned int addr = 0xd1; /* MTP ID */ |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| |
| ret = ops->cmd_read(lcd_to_master(lcd), |
| MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM, |
| addr, 3, mtp_id); |
| } |
| |
| static int s6e8ax0_panel_init(struct s6e8ax0 *lcd) |
| { |
| s6e8ax0_apply_level2_key(lcd); |
| s6e8ax0_sleep_out(lcd); |
| msleep(1); |
| s6e8ax0_panel_cond(lcd); |
| s6e8ax0_display_cond(lcd); |
| s6e8ax0_gamma_cond(lcd); |
| s6e8ax0_gamma_update(lcd); |
| |
| s6e8ax0_etc_cond1(lcd); |
| s6e8ax0_etc_cond2(lcd); |
| s6e8ax0_etc_cond3(lcd); |
| s6e8ax0_etc_cond4(lcd); |
| s6e8ax0_etc_cond5(lcd); |
| s6e8ax0_etc_cond6(lcd); |
| s6e8ax0_etc_cond7(lcd); |
| |
| s6e8ax0_elvss_nvm_set(lcd); |
| s6e8ax0_elvss_set(lcd); |
| |
| s6e8ax0_acl_ctrl_set(lcd); |
| s6e8ax0_acl_on(lcd); |
| |
| /* if ID3 value is not 33h, branch private elvss mode */ |
| msleep(lcd->ddi_pd->power_on_delay); |
| |
| return 0; |
| } |
| |
| static int s6e8ax0_update_gamma_ctrl(struct s6e8ax0 *lcd, int brightness) |
| { |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| |
| ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE, |
| s6e8ax0_22_gamma_table[brightness], |
| ARRAY_SIZE(s6e8ax0_22_gamma_table)); |
| |
| /* update gamma table. */ |
| s6e8ax0_gamma_update(lcd); |
| lcd->gamma = brightness; |
| |
| return 0; |
| } |
| |
| static int s6e8ax0_gamma_ctrl(struct s6e8ax0 *lcd, int gamma) |
| { |
| s6e8ax0_update_gamma_ctrl(lcd, gamma); |
| |
| return 0; |
| } |
| |
| static int s6e8ax0_set_power(struct lcd_device *ld, int power) |
| { |
| struct s6e8ax0 *lcd = lcd_get_data(ld); |
| struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd); |
| int ret = 0; |
| |
| if (power != FB_BLANK_UNBLANK && power != FB_BLANK_POWERDOWN && |
| power != FB_BLANK_NORMAL) { |
| dev_err(lcd->dev, "power value should be 0, 1 or 4.\n"); |
| return -EINVAL; |
| } |
| |
| if ((power == FB_BLANK_UNBLANK) && ops->set_blank_mode) { |
| /* LCD power on */ |
| if ((POWER_IS_ON(power) && POWER_IS_OFF(lcd->power)) |
| || (POWER_IS_ON(power) && POWER_IS_NRM(lcd->power))) { |
| ret = ops->set_blank_mode(lcd_to_master(lcd), power); |
| if (!ret && lcd->power != power) |
| lcd->power = power; |
| } |
| } else if ((power == FB_BLANK_POWERDOWN) && ops->set_early_blank_mode) { |
| /* LCD power off */ |
| if ((POWER_IS_OFF(power) && POWER_IS_ON(lcd->power)) || |
| (POWER_IS_ON(lcd->power) && POWER_IS_NRM(power))) { |
| ret = ops->set_early_blank_mode(lcd_to_master(lcd), |
| power); |
| if (!ret && lcd->power != power) |
| lcd->power = power; |
| } |
| } |
| |
| return ret; |
| } |
| |
| static int s6e8ax0_get_power(struct lcd_device *ld) |
| { |
| struct s6e8ax0 *lcd = lcd_get_data(ld); |
| |
| return lcd->power; |
| } |
| |
| static int s6e8ax0_get_brightness(struct backlight_device *bd) |
| { |
| return bd->props.brightness; |
| } |
| |
| static int s6e8ax0_set_brightness(struct backlight_device *bd) |
| { |
| int ret = 0, brightness = bd->props.brightness; |
| struct s6e8ax0 *lcd = bl_get_data(bd); |
| |
| if (brightness < MIN_BRIGHTNESS || |
| brightness > bd->props.max_brightness) { |
| dev_err(lcd->dev, "lcd brightness should be %d to %d.\n", |
| MIN_BRIGHTNESS, MAX_BRIGHTNESS); |
| return -EINVAL; |
| } |
| |
| ret = s6e8ax0_gamma_ctrl(lcd, brightness); |
| if (ret) { |
| dev_err(&bd->dev, "lcd brightness setting failed.\n"); |
| return -EIO; |
| } |
| |
| return ret; |
| } |
| |
| static struct lcd_ops s6e8ax0_lcd_ops = { |
| .set_power = s6e8ax0_set_power, |
| .get_power = s6e8ax0_get_power, |
| }; |
| |
| static const struct backlight_ops s6e8ax0_backlight_ops = { |
| .get_brightness = s6e8ax0_get_brightness, |
| .update_status = s6e8ax0_set_brightness, |
| }; |
| |
| static void s6e8ax0_power_on(struct mipi_dsim_lcd_device *dsim_dev, int power) |
| { |
| struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev); |
| |
| msleep(lcd->ddi_pd->power_on_delay); |
| |
| /* lcd power on */ |
| if (power) |
| s6e8ax0_regulator_enable(lcd); |
| else |
| s6e8ax0_regulator_disable(lcd); |
| |
| msleep(lcd->ddi_pd->reset_delay); |
| |
| /* lcd reset */ |
| if (lcd->ddi_pd->reset) |
| lcd->ddi_pd->reset(lcd->ld); |
| msleep(5); |
| } |
| |
| static void s6e8ax0_set_sequence(struct mipi_dsim_lcd_device *dsim_dev) |
| { |
| struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev); |
| |
| s6e8ax0_panel_init(lcd); |
| s6e8ax0_display_on(lcd); |
| |
| lcd->power = FB_BLANK_UNBLANK; |
| } |
| |
| static int s6e8ax0_probe(struct mipi_dsim_lcd_device *dsim_dev) |
| { |
| struct s6e8ax0 *lcd; |
| int ret; |
| u8 mtp_id[3] = {0, }; |
| |
| lcd = devm_kzalloc(&dsim_dev->dev, sizeof(struct s6e8ax0), GFP_KERNEL); |
| if (!lcd) { |
| dev_err(&dsim_dev->dev, "failed to allocate s6e8ax0 structure.\n"); |
| return -ENOMEM; |
| } |
| |
| lcd->dsim_dev = dsim_dev; |
| lcd->ddi_pd = (struct lcd_platform_data *)dsim_dev->platform_data; |
| lcd->dev = &dsim_dev->dev; |
| |
| mutex_init(&lcd->lock); |
| |
| ret = devm_regulator_bulk_get(lcd->dev, ARRAY_SIZE(supplies), supplies); |
| if (ret) { |
| dev_err(lcd->dev, "Failed to get regulators: %d\n", ret); |
| return ret; |
| } |
| |
| lcd->ld = devm_lcd_device_register(lcd->dev, "s6e8ax0", lcd->dev, lcd, |
| &s6e8ax0_lcd_ops); |
| if (IS_ERR(lcd->ld)) { |
| dev_err(lcd->dev, "failed to register lcd ops.\n"); |
| return PTR_ERR(lcd->ld); |
| } |
| |
| lcd->bd = devm_backlight_device_register(lcd->dev, "s6e8ax0-bl", |
| lcd->dev, lcd, &s6e8ax0_backlight_ops, NULL); |
| if (IS_ERR(lcd->bd)) { |
| dev_err(lcd->dev, "failed to register backlight ops.\n"); |
| return PTR_ERR(lcd->bd); |
| } |
| |
| lcd->bd->props.max_brightness = MAX_BRIGHTNESS; |
| lcd->bd->props.brightness = MAX_BRIGHTNESS; |
| |
| s6e8ax0_read_id(lcd, mtp_id); |
| if (mtp_id[0] == 0x00) |
| dev_err(lcd->dev, "read id failed\n"); |
| |
| dev_info(lcd->dev, "Read ID : %x, %x, %x\n", |
| mtp_id[0], mtp_id[1], mtp_id[2]); |
| |
| if (mtp_id[2] == 0x33) |
| dev_info(lcd->dev, |
| "ID-3 is 0xff does not support dynamic elvss\n"); |
| else |
| dev_info(lcd->dev, |
| "ID-3 is 0x%x support dynamic elvss\n", mtp_id[2]); |
| |
| lcd->acl_enable = 1; |
| lcd->cur_acl = 0; |
| |
| dev_set_drvdata(&dsim_dev->dev, lcd); |
| |
| dev_dbg(lcd->dev, "probed s6e8ax0 panel driver.\n"); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| static int s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev) |
| { |
| struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev); |
| |
| s6e8ax0_sleep_in(lcd); |
| msleep(lcd->ddi_pd->power_off_delay); |
| s6e8ax0_display_off(lcd); |
| |
| s6e8ax0_regulator_disable(lcd); |
| |
| return 0; |
| } |
| |
| static int s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev) |
| { |
| struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev); |
| |
| s6e8ax0_sleep_out(lcd); |
| msleep(lcd->ddi_pd->power_on_delay); |
| |
| s6e8ax0_regulator_enable(lcd); |
| s6e8ax0_set_sequence(dsim_dev); |
| |
| return 0; |
| } |
| #else |
| #define s6e8ax0_suspend NULL |
| #define s6e8ax0_resume NULL |
| #endif |
| |
| static struct mipi_dsim_lcd_driver s6e8ax0_dsim_ddi_driver = { |
| .name = "s6e8ax0", |
| .id = -1, |
| |
| .power_on = s6e8ax0_power_on, |
| .set_sequence = s6e8ax0_set_sequence, |
| .probe = s6e8ax0_probe, |
| .suspend = s6e8ax0_suspend, |
| .resume = s6e8ax0_resume, |
| }; |
| |
| static int s6e8ax0_init(void) |
| { |
| exynos_mipi_dsi_register_lcd_driver(&s6e8ax0_dsim_ddi_driver); |
| |
| return 0; |
| } |
| |
| static void s6e8ax0_exit(void) |
| { |
| return; |
| } |
| |
| module_init(s6e8ax0_init); |
| module_exit(s6e8ax0_exit); |
| |
| MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>"); |
| MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); |
| MODULE_DESCRIPTION("MIPI-DSI based s6e8ax0 AMOLED LCD Panel Driver"); |
| MODULE_LICENSE("GPL"); |
