| Message ID | 1359560343-31636-5-git-send-email-t.figa@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Figa, On Wed, Jan 30, 2013 at 9:09 PM, Tomasz Figa <t.figa@samsung.com> wrote: > This patch adds Common Display Framework driver for Samsung s6e8ax0 > MIPI DSI display panel. > > Signed-off-by: Tomasz Figa <t.figa@samsung.com> > Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> > --- > drivers/video/display/Kconfig | 3 + > drivers/video/display/Makefile | 1 + > drivers/video/display/panel-s6e8ax0.c | 1027 +++++++++++++++++++++++++++++++++ > include/video/panel-s6e8ax0.h | 41 ++ > 4 files changed, 1072 insertions(+) > create mode 100644 drivers/video/display/panel-s6e8ax0.c > create mode 100644 include/video/panel-s6e8ax0.h > > diff --git a/drivers/video/display/Kconfig b/drivers/video/display/Kconfig > index b14527a..f19ec04 100644 > --- a/drivers/video/display/Kconfig > +++ b/drivers/video/display/Kconfig > @@ -5,6 +5,9 @@ menuconfig DISPLAY_CORE > > if DISPLAY_CORE > > +config DISPLAY_PANEL_S6E8AX0 > + tristate "S6E8AX0 DSI video mode panel" > + select OF_VIDEOMODE > > config DISPLAY_SOURCE_EXYNOS_DSI > tristate "Samsung SoC MIPI DSI Master" > diff --git a/drivers/video/display/Makefile b/drivers/video/display/Makefile > index 40a283a..0f7fdc2 100644 > --- a/drivers/video/display/Makefile > +++ b/drivers/video/display/Makefile > @@ -1,2 +1,3 @@ > obj-$(CONFIG_DISPLAY_CORE) += display-core.o > +obj-$(CONFIG_DISPLAY_PANEL_S6E8AX0) += panel-s6e8ax0.o > obj-$(CONFIG_DISPLAY_SOURCE_EXYNOS_DSI) += source-exynos_dsi.o > diff --git a/drivers/video/display/panel-s6e8ax0.c b/drivers/video/display/panel-s6e8ax0.c > new file mode 100644 > index 0000000..4c09fe2 > --- /dev/null > +++ b/drivers/video/display/panel-s6e8ax0.c > @@ -0,0 +1,1027 @@ > +/* 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> > + * Tomasz Figa, <t.figa@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/fb.h> > +#include <linux/gpio.h> > +#include <linux/lcd.h> > +#include <linux/of.h> > +#include <linux/of_gpio.h> > +#include <linux/of_videomode.h> > +#include <linux/platform_device.h> > +#include <linux/pm_runtime.h> > +#include <linux/backlight.h> > +#include <linux/regulator/consumer.h> > + > +#include <video/display.h> > +#include <video/mipi_display.h> > +#include <video/panel-s6e8ax0.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 > + > +struct s6e8ax0 { > + struct display_entity entity; > + struct device *dev; > + > + struct s6e8ax0_platform_data *pdata; > + struct backlight_device *bd; > + struct lcd_device *ld; > + struct regulator_bulk_data supplies[2]; > + > + bool enabled; > + unsigned int id; > + unsigned int gamma; > + unsigned int acl_enable; > + unsigned int cur_acl; > + int power; > + > + unsigned int reset_gpio; > +}; > + > +#define to_panel(p) container_of(p, struct s6e8ax0, entity) > + > +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) > +{ > + 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->pdata->panel_reverse) > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send_panel_reverse, > + ARRAY_SIZE(data_to_send_panel_reverse)); > + else > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_display_cond(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xf2, 0x80, 0x03, 0x0d > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +/* Gamma 2.2 Setting (200cd, 7500K, 10MPCD) */ > +static void s6e8ax0_gamma_cond(struct s6e8ax0 *lcd) > +{ > + unsigned int gamma = lcd->bd->props.brightness; > + > + dsi_dcs_write(lcd->entity.source, 0, > + s6e8ax0_22_gamma_table[gamma], > + GAMMA_TABLE_COUNT); > +} > + > +static void s6e8ax0_gamma_update(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xf7, 0x03 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, data_to_send, > + ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_etc_cond1(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xd1, 0xfe, 0x80, 0x00, 0x01, 0x0b, 0x00, 0x00, 0x40, > + 0x0d, 0x00, 0x00 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_etc_cond2(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xb6, 0x0c, 0x02, 0x03, 0x32, 0xff, 0x44, 0x44, 0xc0, > + 0x00 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_etc_cond3(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xe1, 0x10, 0x1c, 0x17, 0x08, 0x1d > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_etc_cond4(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xe2, 0xed, 0x07, 0xc3, 0x13, 0x0d, 0x03 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_etc_cond5(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xf4, 0xcf, 0x0a, 0x12, 0x10, 0x19, 0x33, 0x02 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > +static void s6e8ax0_etc_cond6(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xe3, 0x40 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_etc_cond7(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xe4, 0x00, 0x00, 0x14, 0x80, 0x00, 0x00, 0x00 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_elvss_set(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xb1, 0x04, 0x00 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_elvss_nvm_set(struct s6e8ax0 *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 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_sleep_in(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0x10 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_sleep_out(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0x11 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_display_on(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0x29 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_display_off(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0x28 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_apply_level2_key(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xf0, 0x5a, 0x5a > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_acl_on(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xc0, 0x01 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +static void s6e8ax0_acl_off(struct s6e8ax0 *lcd) > +{ > + static const unsigned char data_to_send[] = { > + 0xc0, 0x00 > + }; > + > + dsi_dcs_write(lcd->entity.source, 0, > + data_to_send, ARRAY_SIZE(data_to_send)); > +} > + > +/* Full white 50% reducing setting */ > +static void s6e8ax0_acl_ctrl_set(struct s6e8ax0 *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->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 */ > + dsi_dcs_write(lcd->entity.source, 0, > + cutoff_40, > + ARRAY_SIZE(cutoff_40)); > + lcd->cur_acl = 40; > + break; > + case 4 ... 7: /* 120cd ~ 210cd */ > + dsi_dcs_write(lcd->entity.source, 0, > + cutoff_45, > + ARRAY_SIZE(cutoff_45)); > + lcd->cur_acl = 45; > + break; > + case 8 ... 10: /* 220cd ~ 300cd */ > + dsi_dcs_write(lcd->entity.source, 0, > + 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->dev, "cur_acl = %d\n", lcd->cur_acl); > + } > +} > + > +static void s6e8ax0_read_id(struct s6e8ax0 *lcd, u8 *mtp_id) > +{ > + unsigned int ret; > + u8 addr = 0xd1; /* MTP ID */ > + > + ret = dsi_dcs_read(lcd->entity.source, 0, addr, mtp_id, 3); > +} > + > +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->pdata->power_on_delay); > + > + return 0; > +} > + > +static int s6e8ax0_update_gamma_ctrl(struct s6e8ax0 *lcd, int brightness) > +{ > + dsi_dcs_write(lcd->entity.source, 0, > + 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_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(lcd->dev, > + "lcd brightness setting failed.\n"); > + return -EIO; > + } > + > + return ret; > +} > + > +static const struct backlight_ops s6e8ax0_backlight_ops = { > + .get_brightness = s6e8ax0_get_brightness, > + .update_status = s6e8ax0_set_brightness, > +}; > + > +static int s6e8ax0_set_power(struct lcd_device *ld, int power) > +{ > + struct s6e8ax0 *lcd = lcd_get_data(ld); > + enum display_entity_state state; > + int ret; > + > + if (power == FB_BLANK_POWERDOWN) > + state = DISPLAY_ENTITY_STATE_OFF; > + else if (power != FB_BLANK_UNBLANK) > + state = DISPLAY_ENTITY_STATE_STANDBY; > + else > + state = DISPLAY_ENTITY_STATE_ON; > + > + ret = display_entity_set_state(&lcd->entity, state); > + if (ret) > + return ret; > + > + lcd->power = power; > + return 0; > +} > + > +static int s6e8ax0_get_power(struct lcd_device *ld) > +{ > + struct s6e8ax0 *lcd = lcd_get_data(ld); > + > + return lcd->power; > +} > + > +static struct lcd_ops s6e8ax0_lcd_ops = { > + .set_power = s6e8ax0_set_power, > + .get_power = s6e8ax0_get_power, > +}; > + > +static void s6e8ax0_set_sequence(struct s6e8ax0 *lcd) > +{ > + u8 mtp_id[3] = {0, }; > + > + msleep(100); > + > + 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]); > + > + s6e8ax0_panel_init(lcd); > + s6e8ax0_display_on(lcd); > +} > + > +#ifdef CONFIG_OF > +static int s6e8ax0_generic_reset(struct device *dev) > +{ > + struct s6e8ax0 *lcd = dev_get_drvdata(dev); > + > + mdelay(10); > + gpio_set_value(lcd->reset_gpio, 0); > + mdelay(10); > + gpio_set_value(lcd->reset_gpio, 1); > + > + return 0; > +} > + > +static struct s6e8ax0_platform_data *s6e8ax0_parse_dt(struct s6e8ax0 *lcd) > +{ > + struct device_node *node = lcd->dev->of_node; > + struct s6e8ax0_platform_data *data; > + const __be32 *prop_data; > + int ret; > + > + data = devm_kzalloc(lcd->dev, sizeof(*data), GFP_KERNEL); > + if (!data) { > + dev_err(lcd->dev, "failed to allocate platform data.\n"); > + return NULL; > + } > + > + ret = of_get_videomode(node, &data->mode, 0); > + if (ret) { > + dev_err(lcd->dev, "failed to read video mode from DT\n"); > + return NULL; > + } > + > + lcd->reset_gpio = of_get_named_gpio(node, "reset-gpio", 0); > + if (lcd->reset_gpio < 0) > + return NULL; > + > + prop_data = of_get_property(node, "reset-delay", NULL); > + if (!prop_data) > + return NULL; > + data->reset_delay = be32_to_cpu(*prop_data); > + > + prop_data = of_get_property(node, "power-off-delay", NULL); > + if (!prop_data) > + return NULL; > + data->power_off_delay = be32_to_cpu(*prop_data); > + > + prop_data = of_get_property(node, "power-on-delay", NULL); > + if (!prop_data) > + return NULL; > + data->power_on_delay = be32_to_cpu(*prop_data); > + > + data->reset = s6e8ax0_generic_reset; > + > + return data; > +} > + > +static struct of_device_id s6e8ax0_of_match[] = { > + { .compatible = "samsung,s6e8ax0" }, > + { } > +}; > + > +MODULE_DEVICE_TABLE(of, s6e8ax0_of_match); > +#else > +static struct s6e8ax0_platform_data *s6e8ax0_parse_dt(struct s6e8ax0 *lcd) > +{ > + return NULL; > +} > +#endif > + > +static const struct display_entity_interface_params s6e8ax0_params = { > + .type = DISPLAY_ENTITY_INTERFACE_DSI, > + .p.dsi = { > + .format = DSI_FMT_RGB888, > + .mode = DSI_MODE_VIDEO | DSI_MODE_VIDEO_BURST > + | DSI_MODE_VIDEO_HFP | DSI_MODE_VIDEO_HBP > + | DSI_MODE_VIDEO_HSA | DSI_MODE_EOT_PACKET > + | DSI_MODE_VSYNC_FLUSH, > + .data_lanes = 0xf, > + .hs_clk_freq = 500000000, > + .esc_clk_freq = 10000000, > + }, > +}; > + > +static int s6e8ax0_set_state(struct display_entity *entity, > + enum display_entity_state state) > +{ > + struct s6e8ax0 *panel = to_panel(entity); > + > + switch (state) { > + case DISPLAY_ENTITY_STATE_OFF: > + if (entity->state == DISPLAY_ENTITY_STATE_ON) { > + s6e8ax0_sleep_in(panel); > + panel->entity.source->common_ops->set_stream(entity->source, > + DISPLAY_ENTITY_STREAM_STOPPED); > + > + msleep(panel->pdata->power_off_delay); > + s6e8ax0_display_off(panel); > + > + panel->entity.source->ops.dsi->disable(entity->source); > + > + regulator_bulk_disable(ARRAY_SIZE(panel->supplies), > + panel->supplies); > + } else if (entity->state == DISPLAY_ENTITY_STATE_STANDBY) { > + msleep(panel->pdata->power_off_delay); > + s6e8ax0_display_off(panel); > + > + panel->entity.source->ops.dsi->disable(entity->source); > + > + regulator_bulk_disable(ARRAY_SIZE(panel->supplies), > + panel->supplies); > + } > + break; > + > + case DISPLAY_ENTITY_STATE_STANDBY: > + if (entity->state == DISPLAY_ENTITY_STATE_ON) { > + s6e8ax0_sleep_in(panel); > + panel->entity.source->common_ops->set_stream(entity->source, > + DISPLAY_ENTITY_STREAM_STOPPED); > + } else if (entity->state == DISPLAY_ENTITY_STATE_OFF) { > + msleep(panel->pdata->power_on_delay); > + > + regulator_bulk_enable(ARRAY_SIZE(panel->supplies), > + panel->supplies); > + > + msleep(panel->pdata->reset_delay); > + > + /* lcd reset */ > + if (panel->pdata->reset) > + panel->pdata->reset(panel->dev); > + msleep(5); > + > + panel->entity.source->ops.dsi->enable(entity->source); > + > + s6e8ax0_set_sequence(panel); > + s6e8ax0_sleep_in(panel); > + } > + break; > + > + case DISPLAY_ENTITY_STATE_ON: > + if (entity->state == DISPLAY_ENTITY_STATE_OFF) { > + msleep(panel->pdata->power_on_delay); > + > + regulator_bulk_enable(ARRAY_SIZE(panel->supplies), > + panel->supplies); > + > + msleep(panel->pdata->reset_delay); > + > + /* lcd reset */ > + if (panel->pdata->reset) > + panel->pdata->reset(panel->dev); > + msleep(5); > + > + panel->entity.source->ops.dsi->enable(entity->source); > + > + s6e8ax0_set_sequence(panel); > + > + panel->entity.source->common_ops->set_stream(entity->source, > + DISPLAY_ENTITY_STREAM_CONTINUOUS); > + } else { > + panel->entity.source->common_ops->set_stream(entity->source, > + DISPLAY_ENTITY_STREAM_CONTINUOUS); > + s6e8ax0_sleep_out(panel); > + } > + break; > + > + default: > + break; > + } > + > + return 0; > +} > + > +static int s6e8ax0_get_modes(struct display_entity *entity, > + const struct videomode **modes) > +{ > + struct s6e8ax0 *panel = to_panel(entity); > + > + *modes = &panel->pdata->mode; > + return 1; > +} > + > +static int s6e8ax0_get_size(struct display_entity *entity, > + unsigned int *width, unsigned int *height) > +{ > + struct s6e8ax0 *panel = to_panel(entity); > + > + *width = panel->pdata->width; > + *height = panel->pdata->height; > + return 0; > +} > + > +static int s6e8ax0_get_params(struct display_entity *entity, > + struct display_entity_interface_params *params) > +{ > + *params = s6e8ax0_params; > + return 0; > +} > + > +static const struct display_entity_control_ops s6e8ax0_control_ops = { > + .set_state = s6e8ax0_set_state, > + .get_modes = s6e8ax0_get_modes, > + .get_size = s6e8ax0_get_size, > + .get_params = s6e8ax0_get_params, > +}; > + > +static void s6e8ax0_release(struct display_entity *entity) > +{ > + struct s6e8ax0 *panel = to_panel(entity); > + > + backlight_device_unregister(panel->bd); > + lcd_device_unregister(panel->ld); > + regulator_bulk_free(ARRAY_SIZE(panel->supplies), panel->supplies); > + kfree(panel); > +} > + > +static int s6e8ax0_probe(struct platform_device *pdev) > +{ > + struct s6e8ax0 *lcd; > + int ret; > + > + lcd = kzalloc(sizeof(struct s6e8ax0), GFP_KERNEL); > + if (!lcd) { > + dev_err(&pdev->dev, "failed to allocate s6e8ax0 structure.\n"); > + return -ENOMEM; > + } > + > + lcd->dev = &pdev->dev; > + lcd->pdata = (struct s6e8ax0_platform_data *)pdev->dev.platform_data; > + > + if (!lcd->pdata) { > + lcd->pdata = s6e8ax0_parse_dt(lcd); > + if (!lcd->pdata) { > + dev_err(&pdev->dev, "failed to find platform data\n"); > + return -ENODEV; > + } > + } > + > + lcd->supplies[0].supply = "vdd3"; > + lcd->supplies[1].supply = "vci"; > + ret = regulator_bulk_get(&pdev->dev, > + ARRAY_SIZE(lcd->supplies), lcd->supplies); > + if (ret) { > + dev_err(&pdev->dev, "Failed to get regulators: %d\n", ret); > + goto err_regulator_bulk_get; > + } > + > + lcd->ld = lcd_device_register("s6e8ax0", &pdev->dev, lcd, > + &s6e8ax0_lcd_ops); > + if (IS_ERR(lcd->ld)) { > + dev_err(&pdev->dev, "failed to register lcd ops.\n"); > + ret = PTR_ERR(lcd->ld); > + goto err_lcd_register; > + } > + > + lcd->bd = backlight_device_register("s6e8ax0-bl", &pdev->dev, lcd, > + &s6e8ax0_backlight_ops, NULL); > + if (IS_ERR(lcd->bd)) { > + dev_err(&pdev->dev, "failed to register backlight ops.\n"); > + ret = PTR_ERR(lcd->bd); > + goto err_backlight_register; > + } > + I think we should try to remove the dependency with LCD framework and Backlight framework, and incorporate those functionality as par of CDF. you can refer to my similar patch "Make s6e8ax0 panel driver compliant with CDF" ( http://comments.gmane.org/gmane.linux.drivers.video-input-infrastructure/59187 ) which i had posted couple of weeks back, where I made an attempt to remove "lcd_ops" dependency. > + lcd->acl_enable = 1; > + lcd->cur_acl = 0; > + lcd->power = FB_BLANK_UNBLANK; > + > + lcd->bd->props.max_brightness = MAX_BRIGHTNESS; > + lcd->bd->props.brightness = MAX_BRIGHTNESS; > + > + lcd->entity.of_node = pdev->dev.of_node; > + lcd->entity.dev = &pdev->dev; > + lcd->entity.release = s6e8ax0_release; > + lcd->entity.ops = &s6e8ax0_control_ops; > + > + platform_set_drvdata(pdev, lcd); > + > + ret = display_entity_register(&lcd->entity); > + if (ret < 0) > + goto err_display_register; > + > + display_entity_set_state(&lcd->entity, DISPLAY_ENTITY_STATE_ON); > + > + dev_dbg(&pdev->dev, "probed s6e8ax0 panel driver.\n"); > + > + return 0; > + > +err_display_register: > + backlight_device_unregister(lcd->bd); > +err_backlight_register: > + lcd_device_unregister(lcd->ld); > +err_lcd_register: > + regulator_bulk_free(ARRAY_SIZE(lcd->supplies), lcd->supplies); > +err_regulator_bulk_get: > + kfree(lcd); > + > + return ret; > +} > + > +static int s6e8ax0_remove(struct platform_device *dev) > +{ > + struct s6e8ax0 *lcd = platform_get_drvdata(dev); > + > + platform_set_drvdata(dev, NULL); > + display_entity_unregister(&lcd->entity); > + > + return 0; > +} > + > +static int s6e8ax0_suspend(struct device *dev) > +{ > + struct s6e8ax0 *lcd = dev_get_drvdata(dev); > + > + if (lcd->power == FB_BLANK_UNBLANK) > + display_entity_set_state(&lcd->entity, > + DISPLAY_ENTITY_STATE_OFF); > + > + return 0; > +} > + > +static int s6e8ax0_resume(struct device *dev) > +{ > + struct s6e8ax0 *lcd = dev_get_drvdata(dev); > + > + if (lcd->power == FB_BLANK_UNBLANK) > + display_entity_set_state(&lcd->entity, > + DISPLAY_ENTITY_STATE_ON); > + > + return 0; > +} > + > +static struct dev_pm_ops s6e8ax0_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(s6e8ax0_suspend, s6e8ax0_resume) > +}; > + > +static struct platform_driver s6e8ax0_driver = { > + .probe = s6e8ax0_probe, > + .remove = s6e8ax0_remove, > + .driver = { > + .name = "panel_s6e8ax0", > + .owner = THIS_MODULE, > + .of_match_table = of_match_ptr(s6e8ax0_of_match), > + .pm = &s6e8ax0_pm_ops, > + }, > +}; > +module_platform_driver(s6e8ax0_driver); > + > +MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>"); > +MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); > +MODULE_AUTHOR("Tomasz Figa <t.figa@samsung.com>"); > +MODULE_DESCRIPTION("MIPI-DSI based s6e8ax0 AMOLED LCD Panel Driver"); > +MODULE_LICENSE("GPL"); > diff --git a/include/video/panel-s6e8ax0.h b/include/video/panel-s6e8ax0.h > new file mode 100644 > index 0000000..e522bfb > --- /dev/null > +++ b/include/video/panel-s6e8ax0.h > @@ -0,0 +1,41 @@ > +/* > + * Renesas R61505-based Display Panels > + * > + * Copyright (C) 2012 Renesas Solutions Corp. > + * > + * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.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. > + */ > + > +#ifndef __PANEL_S6E8AX0_H__ > +#define __PANEL_S6E8AX0_H__ > + > +#include <linux/videomode.h> > + > +struct s6e8ax0_platform_data { > + unsigned long width; /* Panel width in mm */ > + unsigned long height; /* Panel height in mm */ > + struct videomode mode; > + > + /* reset lcd panel device. */ > + int (*reset)(struct device *dev); > + > + /* it indicates whether lcd panel was enabled > + from bootloader or not. */ > + int lcd_enabled; > + /* it means delay for stable time when it becomes low to high > + or high to low that is dependent on whether reset gpio is > + low active or high active. */ > + unsigned int reset_delay; > + /* stable time needing to become lcd power on. */ > + unsigned int power_on_delay; > + /* stable time needing to become lcd power off. */ > + unsigned int power_off_delay; > + /* panel is reversed */ > + bool panel_reverse; > +}; > + > +#endif /* __PANEL_S6E8AX0_H__ */ > -- > 1.8.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Thursday 07 of February 2013 15:04:30 Vikas Sajjan wrote: > Hi Figa, > > On Wed, Jan 30, 2013 at 9:09 PM, Tomasz Figa <t.figa@samsung.com> wrote: > > This patch adds Common Display Framework driver for Samsung s6e8ax0 > > MIPI DSI display panel. > > > > Signed-off-by: Tomasz Figa <t.figa@samsung.com> > > Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> > > --- > > > > drivers/video/display/Kconfig | 3 + > > drivers/video/display/Makefile | 1 + > > drivers/video/display/panel-s6e8ax0.c | 1027 > > +++++++++++++++++++++++++++++++++ include/video/panel-s6e8ax0.h > > | 41 ++ > > 4 files changed, 1072 insertions(+) > > create mode 100644 drivers/video/display/panel-s6e8ax0.c > > create mode 100644 include/video/panel-s6e8ax0.h > > [snip] > > + lcd->ld = lcd_device_register("s6e8ax0", &pdev->dev, lcd, > > + &s6e8ax0_lcd_ops); > > + if (IS_ERR(lcd->ld)) { > > + dev_err(&pdev->dev, "failed to register lcd ops.\n"); > > + ret = PTR_ERR(lcd->ld); > > + goto err_lcd_register; > > + } > > + > > + lcd->bd = backlight_device_register("s6e8ax0-bl", &pdev->dev, > > lcd, + &s6e8ax0_backlight_ops, NULL); > > + if (IS_ERR(lcd->bd)) { > > + dev_err(&pdev->dev, "failed to register backlight > > ops.\n"); + ret = PTR_ERR(lcd->bd); > > + goto err_backlight_register; > > + } > > + > > I think we should try to remove the dependency with LCD framework and > Backlight framework, and incorporate those functionality as par of > CDF. > you can refer to my similar patch "Make s6e8ax0 panel driver compliant > with CDF" ( > http://comments.gmane.org/gmane.linux.drivers.video-input-infrastructur > e/59187 ) which i had posted couple of weeks back, where I made an > attempt to remove "lcd_ops" dependency. Yes, I have written in the cover letter that those interfaces is just a hack to be able to control the display from userspace in current state of CDF. I agree that CDF will have to be extended with backlight/brightness control. However currently CDF does not expose any interface to userspace. Laurent, what's your opinion on this? P.S. Tomasz is my first name. Best regards,
diff --git a/drivers/video/display/Kconfig b/drivers/video/display/Kconfig index b14527a..f19ec04 100644 --- a/drivers/video/display/Kconfig +++ b/drivers/video/display/Kconfig @@ -5,6 +5,9 @@ menuconfig DISPLAY_CORE if DISPLAY_CORE +config DISPLAY_PANEL_S6E8AX0 + tristate "S6E8AX0 DSI video mode panel" + select OF_VIDEOMODE config DISPLAY_SOURCE_EXYNOS_DSI tristate "Samsung SoC MIPI DSI Master" diff --git a/drivers/video/display/Makefile b/drivers/video/display/Makefile index 40a283a..0f7fdc2 100644 --- a/drivers/video/display/Makefile +++ b/drivers/video/display/Makefile @@ -1,2 +1,3 @@ obj-$(CONFIG_DISPLAY_CORE) += display-core.o +obj-$(CONFIG_DISPLAY_PANEL_S6E8AX0) += panel-s6e8ax0.o obj-$(CONFIG_DISPLAY_SOURCE_EXYNOS_DSI) += source-exynos_dsi.o diff --git a/drivers/video/display/panel-s6e8ax0.c b/drivers/video/display/panel-s6e8ax0.c new file mode 100644 index 0000000..4c09fe2 --- /dev/null +++ b/drivers/video/display/panel-s6e8ax0.c @@ -0,0 +1,1027 @@ +/* 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> + * Tomasz Figa, <t.figa@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/fb.h> +#include <linux/gpio.h> +#include <linux/lcd.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/of_videomode.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/backlight.h> +#include <linux/regulator/consumer.h> + +#include <video/display.h> +#include <video/mipi_display.h> +#include <video/panel-s6e8ax0.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 + +struct s6e8ax0 { + struct display_entity entity; + struct device *dev; + + struct s6e8ax0_platform_data *pdata; + struct backlight_device *bd; + struct lcd_device *ld; + struct regulator_bulk_data supplies[2]; + + bool enabled; + unsigned int id; + unsigned int gamma; + unsigned int acl_enable; + unsigned int cur_acl; + int power; + + unsigned int reset_gpio; +}; + +#define to_panel(p) container_of(p, struct s6e8ax0, entity) + +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) +{ + 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->pdata->panel_reverse) + dsi_dcs_write(lcd->entity.source, 0, + data_to_send_panel_reverse, + ARRAY_SIZE(data_to_send_panel_reverse)); + else + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_display_cond(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xf2, 0x80, 0x03, 0x0d + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +/* Gamma 2.2 Setting (200cd, 7500K, 10MPCD) */ +static void s6e8ax0_gamma_cond(struct s6e8ax0 *lcd) +{ + unsigned int gamma = lcd->bd->props.brightness; + + dsi_dcs_write(lcd->entity.source, 0, + s6e8ax0_22_gamma_table[gamma], + GAMMA_TABLE_COUNT); +} + +static void s6e8ax0_gamma_update(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xf7, 0x03 + }; + + dsi_dcs_write(lcd->entity.source, 0, data_to_send, + ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_etc_cond1(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xd1, 0xfe, 0x80, 0x00, 0x01, 0x0b, 0x00, 0x00, 0x40, + 0x0d, 0x00, 0x00 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_etc_cond2(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xb6, 0x0c, 0x02, 0x03, 0x32, 0xff, 0x44, 0x44, 0xc0, + 0x00 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_etc_cond3(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xe1, 0x10, 0x1c, 0x17, 0x08, 0x1d + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_etc_cond4(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xe2, 0xed, 0x07, 0xc3, 0x13, 0x0d, 0x03 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_etc_cond5(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xf4, 0xcf, 0x0a, 0x12, 0x10, 0x19, 0x33, 0x02 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} +static void s6e8ax0_etc_cond6(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xe3, 0x40 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_etc_cond7(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xe4, 0x00, 0x00, 0x14, 0x80, 0x00, 0x00, 0x00 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_elvss_set(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xb1, 0x04, 0x00 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_elvss_nvm_set(struct s6e8ax0 *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 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_sleep_in(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0x10 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_sleep_out(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0x11 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_display_on(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0x29 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_display_off(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0x28 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_apply_level2_key(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xf0, 0x5a, 0x5a + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_acl_on(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xc0, 0x01 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +static void s6e8ax0_acl_off(struct s6e8ax0 *lcd) +{ + static const unsigned char data_to_send[] = { + 0xc0, 0x00 + }; + + dsi_dcs_write(lcd->entity.source, 0, + data_to_send, ARRAY_SIZE(data_to_send)); +} + +/* Full white 50% reducing setting */ +static void s6e8ax0_acl_ctrl_set(struct s6e8ax0 *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->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 */ + dsi_dcs_write(lcd->entity.source, 0, + cutoff_40, + ARRAY_SIZE(cutoff_40)); + lcd->cur_acl = 40; + break; + case 4 ... 7: /* 120cd ~ 210cd */ + dsi_dcs_write(lcd->entity.source, 0, + cutoff_45, + ARRAY_SIZE(cutoff_45)); + lcd->cur_acl = 45; + break; + case 8 ... 10: /* 220cd ~ 300cd */ + dsi_dcs_write(lcd->entity.source, 0, + 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->dev, "cur_acl = %d\n", lcd->cur_acl); + } +} + +static void s6e8ax0_read_id(struct s6e8ax0 *lcd, u8 *mtp_id) +{ + unsigned int ret; + u8 addr = 0xd1; /* MTP ID */ + + ret = dsi_dcs_read(lcd->entity.source, 0, addr, mtp_id, 3); +} + +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->pdata->power_on_delay); + + return 0; +} + +static int s6e8ax0_update_gamma_ctrl(struct s6e8ax0 *lcd, int brightness) +{ + dsi_dcs_write(lcd->entity.source, 0, + 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_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(lcd->dev, + "lcd brightness setting failed.\n"); + return -EIO; + } + + return ret; +} + +static const struct backlight_ops s6e8ax0_backlight_ops = { + .get_brightness = s6e8ax0_get_brightness, + .update_status = s6e8ax0_set_brightness, +}; + +static int s6e8ax0_set_power(struct lcd_device *ld, int power) +{ + struct s6e8ax0 *lcd = lcd_get_data(ld); + enum display_entity_state state; + int ret; + + if (power == FB_BLANK_POWERDOWN) + state = DISPLAY_ENTITY_STATE_OFF; + else if (power != FB_BLANK_UNBLANK) + state = DISPLAY_ENTITY_STATE_STANDBY; + else + state = DISPLAY_ENTITY_STATE_ON; + + ret = display_entity_set_state(&lcd->entity, state); + if (ret) + return ret; + + lcd->power = power; + return 0; +} + +static int s6e8ax0_get_power(struct lcd_device *ld) +{ + struct s6e8ax0 *lcd = lcd_get_data(ld); + + return lcd->power; +} + +static struct lcd_ops s6e8ax0_lcd_ops = { + .set_power = s6e8ax0_set_power, + .get_power = s6e8ax0_get_power, +}; + +static void s6e8ax0_set_sequence(struct s6e8ax0 *lcd) +{ + u8 mtp_id[3] = {0, }; + + msleep(100); + + 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]); + + s6e8ax0_panel_init(lcd); + s6e8ax0_display_on(lcd); +} + +#ifdef CONFIG_OF +static int s6e8ax0_generic_reset(struct device *dev) +{ + struct s6e8ax0 *lcd = dev_get_drvdata(dev); + + mdelay(10); + gpio_set_value(lcd->reset_gpio, 0); + mdelay(10); + gpio_set_value(lcd->reset_gpio, 1); + + return 0; +} + +static struct s6e8ax0_platform_data *s6e8ax0_parse_dt(struct s6e8ax0 *lcd) +{ + struct device_node *node = lcd->dev->of_node; + struct s6e8ax0_platform_data *data; + const __be32 *prop_data; + int ret; + + data = devm_kzalloc(lcd->dev, sizeof(*data), GFP_KERNEL); + if (!data) { + dev_err(lcd->dev, "failed to allocate platform data.\n"); + return NULL; + } + + ret = of_get_videomode(node, &data->mode, 0); + if (ret) { + dev_err(lcd->dev, "failed to read video mode from DT\n"); + return NULL; + } + + lcd->reset_gpio = of_get_named_gpio(node, "reset-gpio", 0); + if (lcd->reset_gpio < 0) + return NULL; + + prop_data = of_get_property(node, "reset-delay", NULL); + if (!prop_data) + return NULL; + data->reset_delay = be32_to_cpu(*prop_data); + + prop_data = of_get_property(node, "power-off-delay", NULL); + if (!prop_data) + return NULL; + data->power_off_delay = be32_to_cpu(*prop_data); + + prop_data = of_get_property(node, "power-on-delay", NULL); + if (!prop_data) + return NULL; + data->power_on_delay = be32_to_cpu(*prop_data); + + data->reset = s6e8ax0_generic_reset; + + return data; +} + +static struct of_device_id s6e8ax0_of_match[] = { + { .compatible = "samsung,s6e8ax0" }, + { } +}; + +MODULE_DEVICE_TABLE(of, s6e8ax0_of_match); +#else +static struct s6e8ax0_platform_data *s6e8ax0_parse_dt(struct s6e8ax0 *lcd) +{ + return NULL; +} +#endif + +static const struct display_entity_interface_params s6e8ax0_params = { + .type = DISPLAY_ENTITY_INTERFACE_DSI, + .p.dsi = { + .format = DSI_FMT_RGB888, + .mode = DSI_MODE_VIDEO | DSI_MODE_VIDEO_BURST + | DSI_MODE_VIDEO_HFP | DSI_MODE_VIDEO_HBP + | DSI_MODE_VIDEO_HSA | DSI_MODE_EOT_PACKET + | DSI_MODE_VSYNC_FLUSH, + .data_lanes = 0xf, + .hs_clk_freq = 500000000, + .esc_clk_freq = 10000000, + }, +}; + +static int s6e8ax0_set_state(struct display_entity *entity, + enum display_entity_state state) +{ + struct s6e8ax0 *panel = to_panel(entity); + + switch (state) { + case DISPLAY_ENTITY_STATE_OFF: + if (entity->state == DISPLAY_ENTITY_STATE_ON) { + s6e8ax0_sleep_in(panel); + panel->entity.source->common_ops->set_stream(entity->source, + DISPLAY_ENTITY_STREAM_STOPPED); + + msleep(panel->pdata->power_off_delay); + s6e8ax0_display_off(panel); + + panel->entity.source->ops.dsi->disable(entity->source); + + regulator_bulk_disable(ARRAY_SIZE(panel->supplies), + panel->supplies); + } else if (entity->state == DISPLAY_ENTITY_STATE_STANDBY) { + msleep(panel->pdata->power_off_delay); + s6e8ax0_display_off(panel); + + panel->entity.source->ops.dsi->disable(entity->source); + + regulator_bulk_disable(ARRAY_SIZE(panel->supplies), + panel->supplies); + } + break; + + case DISPLAY_ENTITY_STATE_STANDBY: + if (entity->state == DISPLAY_ENTITY_STATE_ON) { + s6e8ax0_sleep_in(panel); + panel->entity.source->common_ops->set_stream(entity->source, + DISPLAY_ENTITY_STREAM_STOPPED); + } else if (entity->state == DISPLAY_ENTITY_STATE_OFF) { + msleep(panel->pdata->power_on_delay); + + regulator_bulk_enable(ARRAY_SIZE(panel->supplies), + panel->supplies); + + msleep(panel->pdata->reset_delay); + + /* lcd reset */ + if (panel->pdata->reset) + panel->pdata->reset(panel->dev); + msleep(5); + + panel->entity.source->ops.dsi->enable(entity->source); + + s6e8ax0_set_sequence(panel); + s6e8ax0_sleep_in(panel); + } + break; + + case DISPLAY_ENTITY_STATE_ON: + if (entity->state == DISPLAY_ENTITY_STATE_OFF) { + msleep(panel->pdata->power_on_delay); + + regulator_bulk_enable(ARRAY_SIZE(panel->supplies), + panel->supplies); + + msleep(panel->pdata->reset_delay); + + /* lcd reset */ + if (panel->pdata->reset) + panel->pdata->reset(panel->dev); + msleep(5); + + panel->entity.source->ops.dsi->enable(entity->source); + + s6e8ax0_set_sequence(panel); + + panel->entity.source->common_ops->set_stream(entity->source, + DISPLAY_ENTITY_STREAM_CONTINUOUS); + } else { + panel->entity.source->common_ops->set_stream(entity->source, + DISPLAY_ENTITY_STREAM_CONTINUOUS); + s6e8ax0_sleep_out(panel); + } + break; + + default: + break; + } + + return 0; +} + +static int s6e8ax0_get_modes(struct display_entity *entity, + const struct videomode **modes) +{ + struct s6e8ax0 *panel = to_panel(entity); + + *modes = &panel->pdata->mode; + return 1; +} + +static int s6e8ax0_get_size(struct display_entity *entity, + unsigned int *width, unsigned int *height) +{ + struct s6e8ax0 *panel = to_panel(entity); + + *width = panel->pdata->width; + *height = panel->pdata->height; + return 0; +} + +static int s6e8ax0_get_params(struct display_entity *entity, + struct display_entity_interface_params *params) +{ + *params = s6e8ax0_params; + return 0; +} + +static const struct display_entity_control_ops s6e8ax0_control_ops = { + .set_state = s6e8ax0_set_state, + .get_modes = s6e8ax0_get_modes, + .get_size = s6e8ax0_get_size, + .get_params = s6e8ax0_get_params, +}; + +static void s6e8ax0_release(struct display_entity *entity) +{ + struct s6e8ax0 *panel = to_panel(entity); + + backlight_device_unregister(panel->bd); + lcd_device_unregister(panel->ld); + regulator_bulk_free(ARRAY_SIZE(panel->supplies), panel->supplies); + kfree(panel); +} + +static int s6e8ax0_probe(struct platform_device *pdev) +{ + struct s6e8ax0 *lcd; + int ret; + + lcd = kzalloc(sizeof(struct s6e8ax0), GFP_KERNEL); + if (!lcd) { + dev_err(&pdev->dev, "failed to allocate s6e8ax0 structure.\n"); + return -ENOMEM; + } + + lcd->dev = &pdev->dev; + lcd->pdata = (struct s6e8ax0_platform_data *)pdev->dev.platform_data; + + if (!lcd->pdata) { + lcd->pdata = s6e8ax0_parse_dt(lcd); + if (!lcd->pdata) { + dev_err(&pdev->dev, "failed to find platform data\n"); + return -ENODEV; + } + } + + lcd->supplies[0].supply = "vdd3"; + lcd->supplies[1].supply = "vci"; + ret = regulator_bulk_get(&pdev->dev, + ARRAY_SIZE(lcd->supplies), lcd->supplies); + if (ret) { + dev_err(&pdev->dev, "Failed to get regulators: %d\n", ret); + goto err_regulator_bulk_get; + } + + lcd->ld = lcd_device_register("s6e8ax0", &pdev->dev, lcd, + &s6e8ax0_lcd_ops); + if (IS_ERR(lcd->ld)) { + dev_err(&pdev->dev, "failed to register lcd ops.\n"); + ret = PTR_ERR(lcd->ld); + goto err_lcd_register; + } + + lcd->bd = backlight_device_register("s6e8ax0-bl", &pdev->dev, lcd, + &s6e8ax0_backlight_ops, NULL); + if (IS_ERR(lcd->bd)) { + dev_err(&pdev->dev, "failed to register backlight ops.\n"); + ret = PTR_ERR(lcd->bd); + goto err_backlight_register; + } + + lcd->acl_enable = 1; + lcd->cur_acl = 0; + lcd->power = FB_BLANK_UNBLANK; + + lcd->bd->props.max_brightness = MAX_BRIGHTNESS; + lcd->bd->props.brightness = MAX_BRIGHTNESS; + + lcd->entity.of_node = pdev->dev.of_node; + lcd->entity.dev = &pdev->dev; + lcd->entity.release = s6e8ax0_release; + lcd->entity.ops = &s6e8ax0_control_ops; + + platform_set_drvdata(pdev, lcd); + + ret = display_entity_register(&lcd->entity); + if (ret < 0) + goto err_display_register; + + display_entity_set_state(&lcd->entity, DISPLAY_ENTITY_STATE_ON); + + dev_dbg(&pdev->dev, "probed s6e8ax0 panel driver.\n"); + + return 0; + +err_display_register: + backlight_device_unregister(lcd->bd); +err_backlight_register: + lcd_device_unregister(lcd->ld); +err_lcd_register: + regulator_bulk_free(ARRAY_SIZE(lcd->supplies), lcd->supplies); +err_regulator_bulk_get: + kfree(lcd); + + return ret; +} + +static int s6e8ax0_remove(struct platform_device *dev) +{ + struct s6e8ax0 *lcd = platform_get_drvdata(dev); + + platform_set_drvdata(dev, NULL); + display_entity_unregister(&lcd->entity); + + return 0; +} + +static int s6e8ax0_suspend(struct device *dev) +{ + struct s6e8ax0 *lcd = dev_get_drvdata(dev); + + if (lcd->power == FB_BLANK_UNBLANK) + display_entity_set_state(&lcd->entity, + DISPLAY_ENTITY_STATE_OFF); + + return 0; +} + +static int s6e8ax0_resume(struct device *dev) +{ + struct s6e8ax0 *lcd = dev_get_drvdata(dev); + + if (lcd->power == FB_BLANK_UNBLANK) + display_entity_set_state(&lcd->entity, + DISPLAY_ENTITY_STATE_ON); + + return 0; +} + +static struct dev_pm_ops s6e8ax0_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(s6e8ax0_suspend, s6e8ax0_resume) +}; + +static struct platform_driver s6e8ax0_driver = { + .probe = s6e8ax0_probe, + .remove = s6e8ax0_remove, + .driver = { + .name = "panel_s6e8ax0", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(s6e8ax0_of_match), + .pm = &s6e8ax0_pm_ops, + }, +}; +module_platform_driver(s6e8ax0_driver); + +MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>"); +MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); +MODULE_AUTHOR("Tomasz Figa <t.figa@samsung.com>"); +MODULE_DESCRIPTION("MIPI-DSI based s6e8ax0 AMOLED LCD Panel Driver"); +MODULE_LICENSE("GPL"); diff --git a/include/video/panel-s6e8ax0.h b/include/video/panel-s6e8ax0.h new file mode 100644 index 0000000..e522bfb --- /dev/null +++ b/include/video/panel-s6e8ax0.h @@ -0,0 +1,41 @@ +/* + * Renesas R61505-based Display Panels + * + * Copyright (C) 2012 Renesas Solutions Corp. + * + * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.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. + */ + +#ifndef __PANEL_S6E8AX0_H__ +#define __PANEL_S6E8AX0_H__ + +#include <linux/videomode.h> + +struct s6e8ax0_platform_data { + unsigned long width; /* Panel width in mm */ + unsigned long height; /* Panel height in mm */ + struct videomode mode; + + /* reset lcd panel device. */ + int (*reset)(struct device *dev); + + /* it indicates whether lcd panel was enabled + from bootloader or not. */ + int lcd_enabled; + /* it means delay for stable time when it becomes low to high + or high to low that is dependent on whether reset gpio is + low active or high active. */ + unsigned int reset_delay; + /* stable time needing to become lcd power on. */ + unsigned int power_on_delay; + /* stable time needing to become lcd power off. */ + unsigned int power_off_delay; + /* panel is reversed */ + bool panel_reverse; +}; + +#endif /* __PANEL_S6E8AX0_H__ */