diff options
Diffstat (limited to 'drivers/video/exynos/s6e8ax0.c')
| -rw-r--r-- | drivers/video/exynos/s6e8ax0.c | 898 |
1 files changed, 898 insertions, 0 deletions
diff --git a/drivers/video/exynos/s6e8ax0.c b/drivers/video/exynos/s6e8ax0.c new file mode 100644 index 000000000000..4aa9ac6218bf --- /dev/null +++ b/drivers/video/exynos/s6e8ax0.c @@ -0,0 +1,898 @@ +/* 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 + }; + + 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 = kzalloc(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 = regulator_bulk_get(lcd->dev, ARRAY_SIZE(supplies), supplies); + if (ret) { + dev_err(lcd->dev, "Failed to get regulators: %d\n", ret); + goto err_lcd_register; + } + + lcd->ld = lcd_device_register("s6e8ax0", lcd->dev, lcd, + &s6e8ax0_lcd_ops); + if (IS_ERR(lcd->ld)) { + dev_err(lcd->dev, "failed to register lcd ops.\n"); + ret = PTR_ERR(lcd->ld); + goto err_lcd_register; + } + + lcd->bd = backlight_device_register("s6e8ax0-bl", lcd->dev, lcd, + &s6e8ax0_backlight_ops, NULL); + if (IS_ERR(lcd->bd)) { + dev_err(lcd->dev, "failed to register backlight ops.\n"); + ret = PTR_ERR(lcd->bd); + goto err_backlight_register; + } + + 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; + +err_backlight_register: + lcd_device_unregister(lcd->ld); + +err_lcd_register: + regulator_bulk_free(ARRAY_SIZE(supplies), supplies); + kfree(lcd); + + return ret; +} + +#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"); |