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linux/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c
Uwe Kleine-König 79abca2b39 drm/mipi-dsi: Make remove callback return void 
All implementations return 0 and the return value of mipi_dsi_drv_remove()
is ignored anyhow.

So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220708094922.1408248-4-u.kleine-koenig@pengutronix.de
2022-07-09 10:50:03 +02:00

1063 lines
29 KiB
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// SPDX-License-Identifier: GPL-2.0-only
/*
* MIPI-DSI based s6e8aa0 AMOLED LCD 5.3 inch panel driver.
*
* Copyright (c) 2013 Samsung Electronics Co., Ltd
*
* Inki Dae, <inki.dae@samsung.com>
* Donghwa Lee, <dh09.lee@samsung.com>
* Joongmock Shin <jmock.shin@samsung.com>
* Eunchul Kim <chulspro.kim@samsung.com>
* Tomasz Figa <t.figa@samsung.com>
* Andrzej Hajda <a.hajda@samsung.com>
*/
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regulator/consumer.h>
#include <video/mipi_display.h>
#include <video/of_videomode.h>
#include <video/videomode.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
#define LDI_MTP_LENGTH 24
#define GAMMA_LEVEL_NUM 25
#define GAMMA_TABLE_LEN 26
#define PANELCTL_SS_MASK (1 << 5)
#define PANELCTL_SS_1_800 (0 << 5)
#define PANELCTL_SS_800_1 (1 << 5)
#define PANELCTL_GTCON_MASK (7 << 2)
#define PANELCTL_GTCON_110 (6 << 2)
#define PANELCTL_GTCON_111 (7 << 2)
#define PANELCTL_CLK1_CON_MASK (7 << 3)
#define PANELCTL_CLK1_000 (0 << 3)
#define PANELCTL_CLK1_001 (1 << 3)
#define PANELCTL_CLK2_CON_MASK (7 << 0)
#define PANELCTL_CLK2_000 (0 << 0)
#define PANELCTL_CLK2_001 (1 << 0)
#define PANELCTL_INT1_CON_MASK (7 << 3)
#define PANELCTL_INT1_000 (0 << 3)
#define PANELCTL_INT1_001 (1 << 3)
#define PANELCTL_INT2_CON_MASK (7 << 0)
#define PANELCTL_INT2_000 (0 << 0)
#define PANELCTL_INT2_001 (1 << 0)
#define PANELCTL_BICTL_CON_MASK (7 << 3)
#define PANELCTL_BICTL_000 (0 << 3)
#define PANELCTL_BICTL_001 (1 << 3)
#define PANELCTL_BICTLB_CON_MASK (7 << 0)
#define PANELCTL_BICTLB_000 (0 << 0)
#define PANELCTL_BICTLB_001 (1 << 0)
#define PANELCTL_EM_CLK1_CON_MASK (7 << 3)
#define PANELCTL_EM_CLK1_110 (6 << 3)
#define PANELCTL_EM_CLK1_111 (7 << 3)
#define PANELCTL_EM_CLK1B_CON_MASK (7 << 0)
#define PANELCTL_EM_CLK1B_110 (6 << 0)
#define PANELCTL_EM_CLK1B_111 (7 << 0)
#define PANELCTL_EM_CLK2_CON_MASK (7 << 3)
#define PANELCTL_EM_CLK2_110 (6 << 3)
#define PANELCTL_EM_CLK2_111 (7 << 3)
#define PANELCTL_EM_CLK2B_CON_MASK (7 << 0)
#define PANELCTL_EM_CLK2B_110 (6 << 0)
#define PANELCTL_EM_CLK2B_111 (7 << 0)
#define PANELCTL_EM_INT1_CON_MASK (7 << 3)
#define PANELCTL_EM_INT1_000 (0 << 3)
#define PANELCTL_EM_INT1_001 (1 << 3)
#define PANELCTL_EM_INT2_CON_MASK (7 << 0)
#define PANELCTL_EM_INT2_000 (0 << 0)
#define PANELCTL_EM_INT2_001 (1 << 0)
#define AID_DISABLE (0x4)
#define AID_1 (0x5)
#define AID_2 (0x6)
#define AID_3 (0x7)
typedef u8 s6e8aa0_gamma_table[GAMMA_TABLE_LEN];
struct s6e8aa0_variant {
u8 version;
const s6e8aa0_gamma_table *gamma_tables;
};
struct s6e8aa0 {
struct device *dev;
struct drm_panel panel;
struct regulator_bulk_data supplies[2];
struct gpio_desc *reset_gpio;
u32 power_on_delay;
u32 reset_delay;
u32 init_delay;
bool flip_horizontal;
bool flip_vertical;
struct videomode vm;
u32 width_mm;
u32 height_mm;
u8 version;
u8 id;
const struct s6e8aa0_variant *variant;
int brightness;
/* This field is tested by functions directly accessing DSI bus before
* transfer, transfer is skipped if it is set. In case of transfer
* failure or unexpected response the field is set to error value.
* Such construct allows to eliminate many checks in higher level
* functions.
*/
int error;
};
static inline struct s6e8aa0 *panel_to_s6e8aa0(struct drm_panel *panel)
{
return container_of(panel, struct s6e8aa0, panel);
}
static int s6e8aa0_clear_error(struct s6e8aa0 *ctx)
{
int ret = ctx->error;
ctx->error = 0;
return ret;
}
static void s6e8aa0_dcs_write(struct s6e8aa0 *ctx, const void *data, size_t len)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
ssize_t ret;
if (ctx->error < 0)
return;
ret = mipi_dsi_dcs_write_buffer(dsi, data, len);
if (ret < 0) {
dev_err(ctx->dev, "error %zd writing dcs seq: %*ph\n", ret,
(int)len, data);
ctx->error = ret;
}
}
static int s6e8aa0_dcs_read(struct s6e8aa0 *ctx, u8 cmd, void *data, size_t len)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
int ret;
if (ctx->error < 0)
return ctx->error;
ret = mipi_dsi_dcs_read(dsi, cmd, data, len);
if (ret < 0) {
dev_err(ctx->dev, "error %d reading dcs seq(%#x)\n", ret, cmd);
ctx->error = ret;
}
return ret;
}
#define s6e8aa0_dcs_write_seq(ctx, seq...) \
({\
const u8 d[] = { seq };\
BUILD_BUG_ON_MSG(ARRAY_SIZE(d) > 64, "DCS sequence too big for stack");\
s6e8aa0_dcs_write(ctx, d, ARRAY_SIZE(d));\
})
#define s6e8aa0_dcs_write_seq_static(ctx, seq...) \
({\
static const u8 d[] = { seq };\
s6e8aa0_dcs_write(ctx, d, ARRAY_SIZE(d));\
})
static void s6e8aa0_apply_level_1_key(struct s6e8aa0 *ctx)
{
s6e8aa0_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a);
}
static void s6e8aa0_panel_cond_set_v142(struct s6e8aa0 *ctx)
{
static const u8 aids[] = {
0x04, 0x04, 0x04, 0x04, 0x04, 0x60, 0x80, 0xA0
};
u8 aid = aids[ctx->id >> 5];
u8 cfg = 0x3d;
u8 clk_con = 0xc8;
u8 int_con = 0x08;
u8 bictl_con = 0x48;
u8 em_clk1_con = 0xff;
u8 em_clk2_con = 0xff;
u8 em_int_con = 0xc8;
if (ctx->flip_vertical) {
/* GTCON */
cfg &= ~(PANELCTL_GTCON_MASK);
cfg |= (PANELCTL_GTCON_110);
}
if (ctx->flip_horizontal) {
/* SS */
cfg &= ~(PANELCTL_SS_MASK);
cfg |= (PANELCTL_SS_1_800);
}
if (ctx->flip_horizontal || ctx->flip_vertical) {
/* CLK1,2_CON */
clk_con &= ~(PANELCTL_CLK1_CON_MASK |
PANELCTL_CLK2_CON_MASK);
clk_con |= (PANELCTL_CLK1_000 | PANELCTL_CLK2_001);
/* INT1,2_CON */
int_con &= ~(PANELCTL_INT1_CON_MASK |
PANELCTL_INT2_CON_MASK);
int_con |= (PANELCTL_INT1_000 | PANELCTL_INT2_001);
/* BICTL,B_CON */
bictl_con &= ~(PANELCTL_BICTL_CON_MASK |
PANELCTL_BICTLB_CON_MASK);
bictl_con |= (PANELCTL_BICTL_000 |
PANELCTL_BICTLB_001);
/* EM_CLK1,1B_CON */
em_clk1_con &= ~(PANELCTL_EM_CLK1_CON_MASK |
PANELCTL_EM_CLK1B_CON_MASK);
em_clk1_con |= (PANELCTL_EM_CLK1_110 |
PANELCTL_EM_CLK1B_110);
/* EM_CLK2,2B_CON */
em_clk2_con &= ~(PANELCTL_EM_CLK2_CON_MASK |
PANELCTL_EM_CLK2B_CON_MASK);
em_clk2_con |= (PANELCTL_EM_CLK2_110 |
PANELCTL_EM_CLK2B_110);
/* EM_INT1,2_CON */
em_int_con &= ~(PANELCTL_EM_INT1_CON_MASK |
PANELCTL_EM_INT2_CON_MASK);
em_int_con |= (PANELCTL_EM_INT1_000 |
PANELCTL_EM_INT2_001);
}
s6e8aa0_dcs_write_seq(ctx,
0xf8, cfg, 0x35, 0x00, 0x00, 0x00, 0x93, 0x00,
0x3c, 0x78, 0x08, 0x27, 0x7d, 0x3f, 0x00, 0x00,
0x00, 0x20, aid, 0x08, 0x6e, 0x00, 0x00, 0x00,
0x02, 0x07, 0x07, 0x23, 0x23, 0xc0, clk_con, int_con,
bictl_con, 0xc1, 0x00, 0xc1, em_clk1_con, em_clk2_con,
em_int_con);
}
static void s6e8aa0_panel_cond_set(struct s6e8aa0 *ctx)
{
if (ctx->version < 142)
s6e8aa0_dcs_write_seq_static(ctx,
0xf8, 0x19, 0x35, 0x00, 0x00, 0x00, 0x94, 0x00,
0x3c, 0x78, 0x10, 0x27, 0x08, 0x6e, 0x00, 0x00,
0x00, 0x00, 0x04, 0x08, 0x6e, 0x00, 0x00, 0x00,
0x00, 0x07, 0x07, 0x23, 0x6e, 0xc0, 0xc1, 0x01,
0x81, 0xc1, 0x00, 0xc3, 0xf6, 0xf6, 0xc1
);
else
s6e8aa0_panel_cond_set_v142(ctx);
}
static void s6e8aa0_display_condition_set(struct s6e8aa0 *ctx)
{
s6e8aa0_dcs_write_seq_static(ctx, 0xf2, 0x80, 0x03, 0x0d);
}
static void s6e8aa0_etc_source_control(struct s6e8aa0 *ctx)
{
s6e8aa0_dcs_write_seq_static(ctx, 0xf6, 0x00, 0x02, 0x00);
}
static void s6e8aa0_etc_pentile_control(struct s6e8aa0 *ctx)
{
static const u8 pent32[] = {
0xb6, 0x0c, 0x02, 0x03, 0x32, 0xc0, 0x44, 0x44, 0xc0, 0x00
};
static const u8 pent142[] = {
0xb6, 0x0c, 0x02, 0x03, 0x32, 0xff, 0x44, 0x44, 0xc0, 0x00
};
if (ctx->version < 142)
s6e8aa0_dcs_write(ctx, pent32, ARRAY_SIZE(pent32));
else
s6e8aa0_dcs_write(ctx, pent142, ARRAY_SIZE(pent142));
}
static void s6e8aa0_etc_power_control(struct s6e8aa0 *ctx)
{
static const u8 pwr142[] = {
0xf4, 0xcf, 0x0a, 0x12, 0x10, 0x1e, 0x33, 0x02
};
static const u8 pwr32[] = {
0xf4, 0xcf, 0x0a, 0x15, 0x10, 0x19, 0x33, 0x02
};
if (ctx->version < 142)
s6e8aa0_dcs_write(ctx, pwr32, ARRAY_SIZE(pwr32));
else
s6e8aa0_dcs_write(ctx, pwr142, ARRAY_SIZE(pwr142));
}
static void s6e8aa0_etc_elvss_control(struct s6e8aa0 *ctx)
{
u8 id = ctx->id ? 0 : 0x95;
s6e8aa0_dcs_write_seq(ctx, 0xb1, 0x04, id);
}
static void s6e8aa0_elvss_nvm_set_v142(struct s6e8aa0 *ctx)
{
u8 br;
switch (ctx->brightness) {
case 0 ... 6: /* 30cd ~ 100cd */
br = 0xdf;
break;
case 7 ... 11: /* 120cd ~ 150cd */
br = 0xdd;
break;
case 12 ... 15: /* 180cd ~ 210cd */
default:
br = 0xd9;
break;
case 16 ... 24: /* 240cd ~ 300cd */
br = 0xd0;
break;
}
s6e8aa0_dcs_write_seq(ctx, 0xd9, 0x14, 0x40, 0x0c, 0xcb, 0xce, 0x6e,
0xc4, 0x0f, 0x40, 0x41, br, 0x00, 0x60, 0x19);
}
static void s6e8aa0_elvss_nvm_set(struct s6e8aa0 *ctx)
{
if (ctx->version < 142)
s6e8aa0_dcs_write_seq_static(ctx,
0xd9, 0x14, 0x40, 0x0c, 0xcb, 0xce, 0x6e, 0xc4, 0x07,
0x40, 0x41, 0xc1, 0x00, 0x60, 0x19);
else
s6e8aa0_elvss_nvm_set_v142(ctx);
};
static void s6e8aa0_apply_level_2_key(struct s6e8aa0 *ctx)
{
s6e8aa0_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a);
}
static const s6e8aa0_gamma_table s6e8aa0_gamma_tables_v142[GAMMA_LEVEL_NUM] = {
{
0xfa, 0x01, 0x71, 0x31, 0x7b, 0x62, 0x55, 0x55,
0xaf, 0xb1, 0xb1, 0xbd, 0xce, 0xb7, 0x9a, 0xb1,
0x90, 0xb2, 0xc4, 0xae, 0x00, 0x60, 0x00, 0x40,
0x00, 0x70,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0x74, 0x68, 0x69,
0xb8, 0xc1, 0xb7, 0xbd, 0xcd, 0xb8, 0x93, 0xab,
0x88, 0xb4, 0xc4, 0xb1, 0x00, 0x6b, 0x00, 0x4d,
0x00, 0x7d,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0x95, 0x8a, 0x89,
0xb4, 0xc6, 0xb2, 0xc5, 0xd2, 0xbf, 0x90, 0xa8,
0x85, 0xb5, 0xc4, 0xb3, 0x00, 0x7b, 0x00, 0x5d,
0x00, 0x8f,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0x9f, 0x98, 0x92,
0xb3, 0xc4, 0xb0, 0xbc, 0xcc, 0xb4, 0x91, 0xa6,
0x87, 0xb5, 0xc5, 0xb4, 0x00, 0x87, 0x00, 0x6a,
0x00, 0x9e,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0x99, 0x93, 0x8b,
0xb2, 0xc2, 0xb0, 0xbd, 0xce, 0xb4, 0x90, 0xa6,
0x87, 0xb3, 0xc3, 0xb2, 0x00, 0x8d, 0x00, 0x70,
0x00, 0xa4,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa7, 0xa5, 0x99,
0xb2, 0xc2, 0xb0, 0xbb, 0xcd, 0xb1, 0x93, 0xa7,
0x8a, 0xb2, 0xc1, 0xb0, 0x00, 0x92, 0x00, 0x75,
0x00, 0xaa,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa0, 0xa0, 0x93,
0xb6, 0xc4, 0xb4, 0xb5, 0xc8, 0xaa, 0x94, 0xa9,
0x8c, 0xb2, 0xc0, 0xb0, 0x00, 0x97, 0x00, 0x7a,
0x00, 0xaf,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa3, 0xa7, 0x96,
0xb3, 0xc2, 0xb0, 0xba, 0xcb, 0xb0, 0x94, 0xa8,
0x8c, 0xb0, 0xbf, 0xaf, 0x00, 0x9f, 0x00, 0x83,
0x00, 0xb9,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0x9d, 0xa2, 0x90,
0xb6, 0xc5, 0xb3, 0xb8, 0xc9, 0xae, 0x94, 0xa8,
0x8d, 0xaf, 0xbd, 0xad, 0x00, 0xa4, 0x00, 0x88,
0x00, 0xbf,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa6, 0xac, 0x97,
0xb4, 0xc4, 0xb1, 0xbb, 0xcb, 0xb2, 0x93, 0xa7,
0x8d, 0xae, 0xbc, 0xad, 0x00, 0xa7, 0x00, 0x8c,
0x00, 0xc3,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa2, 0xa9, 0x93,
0xb6, 0xc5, 0xb2, 0xba, 0xc9, 0xb0, 0x93, 0xa7,
0x8d, 0xae, 0xbb, 0xac, 0x00, 0xab, 0x00, 0x90,
0x00, 0xc8,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0x9e, 0xa6, 0x8f,
0xb7, 0xc6, 0xb3, 0xb8, 0xc8, 0xb0, 0x93, 0xa6,
0x8c, 0xae, 0xbb, 0xad, 0x00, 0xae, 0x00, 0x93,
0x00, 0xcc,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xab, 0xb4, 0x9c,
0xb3, 0xc3, 0xaf, 0xb7, 0xc7, 0xaf, 0x93, 0xa6,
0x8c, 0xaf, 0xbc, 0xad, 0x00, 0xb1, 0x00, 0x97,
0x00, 0xcf,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa6, 0xb1, 0x98,
0xb1, 0xc2, 0xab, 0xba, 0xc9, 0xb2, 0x93, 0xa6,
0x8d, 0xae, 0xba, 0xab, 0x00, 0xb5, 0x00, 0x9b,
0x00, 0xd4,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa3, 0xae, 0x94,
0xb2, 0xc3, 0xac, 0xbb, 0xca, 0xb4, 0x91, 0xa4,
0x8a, 0xae, 0xba, 0xac, 0x00, 0xb8, 0x00, 0x9e,
0x00, 0xd8,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xab, 0xb7, 0x9c,
0xae, 0xc0, 0xa9, 0xba, 0xc9, 0xb3, 0x92, 0xa5,
0x8b, 0xad, 0xb9, 0xab, 0x00, 0xbb, 0x00, 0xa1,
0x00, 0xdc,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa7, 0xb4, 0x97,
0xb0, 0xc1, 0xaa, 0xb9, 0xc8, 0xb2, 0x92, 0xa5,
0x8c, 0xae, 0xb9, 0xab, 0x00, 0xbe, 0x00, 0xa4,
0x00, 0xdf,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa3, 0xb0, 0x94,
0xb0, 0xc2, 0xab, 0xbb, 0xc9, 0xb3, 0x91, 0xa4,
0x8b, 0xad, 0xb8, 0xaa, 0x00, 0xc1, 0x00, 0xa8,
0x00, 0xe2,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa3, 0xb0, 0x94,
0xae, 0xbf, 0xa8, 0xb9, 0xc8, 0xb3, 0x92, 0xa4,
0x8b, 0xad, 0xb7, 0xa9, 0x00, 0xc4, 0x00, 0xab,
0x00, 0xe6,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa7, 0xb6, 0x98,
0xaf, 0xc0, 0xa8, 0xb8, 0xc7, 0xb2, 0x93, 0xa5,
0x8d, 0xad, 0xb7, 0xa9, 0x00, 0xc7, 0x00, 0xae,
0x00, 0xe9,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa4, 0xb3, 0x95,
0xaf, 0xc1, 0xa9, 0xb9, 0xc8, 0xb3, 0x92, 0xa4,
0x8b, 0xad, 0xb7, 0xaa, 0x00, 0xc9, 0x00, 0xb0,
0x00, 0xec,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa4, 0xb3, 0x95,
0xac, 0xbe, 0xa6, 0xbb, 0xc9, 0xb4, 0x90, 0xa3,
0x8a, 0xad, 0xb7, 0xa9, 0x00, 0xcc, 0x00, 0xb4,
0x00, 0xf0,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa0, 0xb0, 0x91,
0xae, 0xc0, 0xa6, 0xba, 0xc8, 0xb4, 0x91, 0xa4,
0x8b, 0xad, 0xb7, 0xa9, 0x00, 0xcf, 0x00, 0xb7,
0x00, 0xf3,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa7, 0xb8, 0x98,
0xab, 0xbd, 0xa4, 0xbb, 0xc9, 0xb5, 0x91, 0xa3,
0x8b, 0xac, 0xb6, 0xa8, 0x00, 0xd1, 0x00, 0xb9,
0x00, 0xf6,
}, {
0xfa, 0x01, 0x71, 0x31, 0x7b, 0xa4, 0xb5, 0x95,
0xa9, 0xbc, 0xa1, 0xbb, 0xc9, 0xb5, 0x91, 0xa3,
0x8a, 0xad, 0xb6, 0xa8, 0x00, 0xd6, 0x00, 0xbf,
0x00, 0xfc,
},
};
static const s6e8aa0_gamma_table s6e8aa0_gamma_tables_v96[GAMMA_LEVEL_NUM] = {
{
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
0xdf, 0x1f, 0xd7, 0xdc, 0xb7, 0xe1, 0xc0, 0xaf,
0xc4, 0xd2, 0xd0, 0xcf, 0x00, 0x4d, 0x00, 0x40,
0x00, 0x5f,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
0xd5, 0x35, 0xcf, 0xdc, 0xc1, 0xe1, 0xbf, 0xb3,
0xc1, 0xd2, 0xd1, 0xce, 0x00, 0x53, 0x00, 0x46,
0x00, 0x67,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
0xd2, 0x64, 0xcf, 0xdb, 0xc6, 0xe1, 0xbd, 0xb3,
0xbd, 0xd2, 0xd2, 0xce, 0x00, 0x59, 0x00, 0x4b,
0x00, 0x6e,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
0xd0, 0x7c, 0xcf, 0xdb, 0xc9, 0xe0, 0xbc, 0xb4,
0xbb, 0xcf, 0xd1, 0xcc, 0x00, 0x5f, 0x00, 0x50,
0x00, 0x75,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
0xd0, 0x8e, 0xd1, 0xdb, 0xcc, 0xdf, 0xbb, 0xb6,
0xb9, 0xd0, 0xd1, 0xcd, 0x00, 0x63, 0x00, 0x54,
0x00, 0x7a,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
0xd1, 0x9e, 0xd5, 0xda, 0xcd, 0xdd, 0xbb, 0xb7,
0xb9, 0xce, 0xce, 0xc9, 0x00, 0x68, 0x00, 0x59,
0x00, 0x81,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x00, 0xff,
0xd0, 0xa5, 0xd6, 0xda, 0xcf, 0xdd, 0xbb, 0xb7,
0xb8, 0xcc, 0xcd, 0xc7, 0x00, 0x6c, 0x00, 0x5c,
0x00, 0x86,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x1f, 0xfe,
0xd0, 0xae, 0xd7, 0xd9, 0xd0, 0xdb, 0xb9, 0xb6,
0xb5, 0xca, 0xcc, 0xc5, 0x00, 0x74, 0x00, 0x63,
0x00, 0x90,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x1f, 0xf9,
0xcf, 0xb0, 0xd6, 0xd9, 0xd1, 0xdb, 0xb9, 0xb6,
0xb4, 0xca, 0xcb, 0xc5, 0x00, 0x77, 0x00, 0x66,
0x00, 0x94,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xff, 0x1f, 0xf7,
0xcf, 0xb3, 0xd7, 0xd8, 0xd1, 0xd9, 0xb7, 0xb6,
0xb3, 0xc9, 0xca, 0xc3, 0x00, 0x7b, 0x00, 0x69,
0x00, 0x99,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xfd, 0x2f, 0xf7,
0xdf, 0xb5, 0xd6, 0xd8, 0xd1, 0xd8, 0xb6, 0xb5,
0xb2, 0xca, 0xcb, 0xc4, 0x00, 0x7e, 0x00, 0x6c,
0x00, 0x9d,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xfa, 0x2f, 0xf5,
0xce, 0xb6, 0xd5, 0xd7, 0xd2, 0xd8, 0xb6, 0xb4,
0xb0, 0xc7, 0xc9, 0xc1, 0x00, 0x84, 0x00, 0x71,
0x00, 0xa5,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xf7, 0x2f, 0xf2,
0xce, 0xb9, 0xd5, 0xd8, 0xd2, 0xd8, 0xb4, 0xb4,
0xaf, 0xc7, 0xc9, 0xc1, 0x00, 0x87, 0x00, 0x73,
0x00, 0xa8,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xf5, 0x2f, 0xf0,
0xdf, 0xba, 0xd5, 0xd7, 0xd2, 0xd7, 0xb4, 0xb4,
0xaf, 0xc5, 0xc7, 0xbf, 0x00, 0x8a, 0x00, 0x76,
0x00, 0xac,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xf2, 0x2f, 0xed,
0xcE, 0xbb, 0xd4, 0xd6, 0xd2, 0xd6, 0xb5, 0xb4,
0xaF, 0xc5, 0xc7, 0xbf, 0x00, 0x8c, 0x00, 0x78,
0x00, 0xaf,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xef, 0x2f, 0xeb,
0xcd, 0xbb, 0xd2, 0xd7, 0xd3, 0xd6, 0xb3, 0xb4,
0xae, 0xc5, 0xc6, 0xbe, 0x00, 0x91, 0x00, 0x7d,
0x00, 0xb6,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xee, 0x2f, 0xea,
0xce, 0xbd, 0xd4, 0xd6, 0xd2, 0xd5, 0xb2, 0xb3,
0xad, 0xc3, 0xc4, 0xbb, 0x00, 0x94, 0x00, 0x7f,
0x00, 0xba,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xec, 0x2f, 0xe8,
0xce, 0xbe, 0xd3, 0xd6, 0xd3, 0xd5, 0xb2, 0xb2,
0xac, 0xc3, 0xc5, 0xbc, 0x00, 0x96, 0x00, 0x81,
0x00, 0xbd,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xeb, 0x2f, 0xe7,
0xce, 0xbf, 0xd3, 0xd6, 0xd2, 0xd5, 0xb1, 0xb2,
0xab, 0xc2, 0xc4, 0xbb, 0x00, 0x99, 0x00, 0x83,
0x00, 0xc0,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xef, 0x5f, 0xe9,
0xca, 0xbf, 0xd3, 0xd5, 0xd2, 0xd4, 0xb2, 0xb2,
0xab, 0xc1, 0xc4, 0xba, 0x00, 0x9b, 0x00, 0x85,
0x00, 0xc3,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xea, 0x5f, 0xe8,
0xee, 0xbf, 0xd2, 0xd5, 0xd2, 0xd4, 0xb1, 0xb2,
0xab, 0xc1, 0xc2, 0xb9, 0x00, 0x9D, 0x00, 0x87,
0x00, 0xc6,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xe9, 0x5f, 0xe7,
0xcd, 0xbf, 0xd2, 0xd6, 0xd2, 0xd4, 0xb1, 0xb2,
0xab, 0xbe, 0xc0, 0xb7, 0x00, 0xa1, 0x00, 0x8a,
0x00, 0xca,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xe8, 0x61, 0xe6,
0xcd, 0xbf, 0xd1, 0xd6, 0xd3, 0xd4, 0xaf, 0xb0,
0xa9, 0xbe, 0xc1, 0xb7, 0x00, 0xa3, 0x00, 0x8b,
0x00, 0xce,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xe8, 0x62, 0xe5,
0xcc, 0xc0, 0xd0, 0xd6, 0xd2, 0xd4, 0xaf, 0xb1,
0xa9, 0xbd, 0xc0, 0xb6, 0x00, 0xa5, 0x00, 0x8d,
0x00, 0xd0,
}, {
0xfa, 0x01, 0x1f, 0x1f, 0x1f, 0xe7, 0x7f, 0xe3,
0xcc, 0xc1, 0xd0, 0xd5, 0xd3, 0xd3, 0xae, 0xaf,
0xa8, 0xbe, 0xc0, 0xb7, 0x00, 0xa8, 0x00, 0x90,
0x00, 0xd3,
}
};
static const s6e8aa0_gamma_table s6e8aa0_gamma_tables_v32[GAMMA_LEVEL_NUM] = {
{
0xfa, 0x01, 0x43, 0x14, 0x45, 0x72, 0x5e, 0x6b,
0xa1, 0xa7, 0x9a, 0xb4, 0xcb, 0xb8, 0x92, 0xac,
0x97, 0xb4, 0xc3, 0xb5, 0x00, 0x4e, 0x00, 0x37,
0x00, 0x58,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0x85, 0x71, 0x7d,
0xa6, 0xb6, 0xa1, 0xb5, 0xca, 0xba, 0x93, 0xac,
0x98, 0xb2, 0xc0, 0xaf, 0x00, 0x59, 0x00, 0x43,
0x00, 0x64,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xa4, 0x94, 0x9e,
0xa0, 0xbb, 0x9c, 0xc3, 0xd2, 0xc6, 0x93, 0xaa,
0x95, 0xb7, 0xc2, 0xb4, 0x00, 0x65, 0x00, 0x50,
0x00, 0x74,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xa1, 0xa6,
0xa0, 0xb9, 0x9b, 0xc3, 0xd1, 0xc8, 0x90, 0xa6,
0x90, 0xbb, 0xc3, 0xb7, 0x00, 0x6f, 0x00, 0x5b,
0x00, 0x80,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xa6, 0x9d, 0x9f,
0x9f, 0xb8, 0x9a, 0xc7, 0xd5, 0xcc, 0x90, 0xa5,
0x8f, 0xb8, 0xc1, 0xb6, 0x00, 0x74, 0x00, 0x60,
0x00, 0x85,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xb3, 0xae, 0xae,
0x9e, 0xb7, 0x9a, 0xc8, 0xd6, 0xce, 0x91, 0xa6,
0x90, 0xb6, 0xc0, 0xb3, 0x00, 0x78, 0x00, 0x65,
0x00, 0x8a,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xa9, 0xa8,
0xa3, 0xb9, 0x9e, 0xc4, 0xd3, 0xcb, 0x94, 0xa6,
0x90, 0xb6, 0xbf, 0xb3, 0x00, 0x7c, 0x00, 0x69,
0x00, 0x8e,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xaf, 0xaf, 0xa9,
0xa5, 0xbc, 0xa2, 0xc7, 0xd5, 0xcd, 0x93, 0xa5,
0x8f, 0xb4, 0xbd, 0xb1, 0x00, 0x83, 0x00, 0x70,
0x00, 0x96,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xa9, 0xab, 0xa3,
0xaa, 0xbf, 0xa7, 0xc5, 0xd3, 0xcb, 0x93, 0xa5,
0x8f, 0xb2, 0xbb, 0xb0, 0x00, 0x86, 0x00, 0x74,
0x00, 0x9b,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xb1, 0xb5, 0xab,
0xab, 0xc0, 0xa9, 0xc7, 0xd4, 0xcc, 0x94, 0xa4,
0x8f, 0xb1, 0xbb, 0xaf, 0x00, 0x8a, 0x00, 0x77,
0x00, 0x9e,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xb2, 0xa7,
0xae, 0xc2, 0xab, 0xc5, 0xd3, 0xca, 0x93, 0xa4,
0x8f, 0xb1, 0xba, 0xae, 0x00, 0x8d, 0x00, 0x7b,
0x00, 0xa2,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xa9, 0xaf, 0xa3,
0xb0, 0xc3, 0xae, 0xc4, 0xd1, 0xc8, 0x93, 0xa4,
0x8f, 0xb1, 0xba, 0xaf, 0x00, 0x8f, 0x00, 0x7d,
0x00, 0xa5,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xb4, 0xbd, 0xaf,
0xae, 0xc1, 0xab, 0xc2, 0xd0, 0xc6, 0x94, 0xa4,
0x8f, 0xb1, 0xba, 0xaf, 0x00, 0x92, 0x00, 0x80,
0x00, 0xa8,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xb0, 0xb9, 0xac,
0xad, 0xc1, 0xab, 0xc4, 0xd1, 0xc7, 0x95, 0xa4,
0x90, 0xb0, 0xb9, 0xad, 0x00, 0x95, 0x00, 0x84,
0x00, 0xac,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xb6, 0xa7,
0xaf, 0xc2, 0xae, 0xc5, 0xd1, 0xc7, 0x93, 0xa3,
0x8e, 0xb0, 0xb9, 0xad, 0x00, 0x98, 0x00, 0x86,
0x00, 0xaf,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xb4, 0xbf, 0xaf,
0xad, 0xc1, 0xab, 0xc3, 0xd0, 0xc6, 0x94, 0xa3,
0x8f, 0xaf, 0xb8, 0xac, 0x00, 0x9a, 0x00, 0x89,
0x00, 0xb2,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xb0, 0xbc, 0xac,
0xaf, 0xc2, 0xad, 0xc2, 0xcf, 0xc4, 0x94, 0xa3,
0x90, 0xaf, 0xb8, 0xad, 0x00, 0x9c, 0x00, 0x8b,
0x00, 0xb5,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xb9, 0xa7,
0xb1, 0xc4, 0xaf, 0xc3, 0xcf, 0xc5, 0x94, 0xa3,
0x8f, 0xae, 0xb7, 0xac, 0x00, 0x9f, 0x00, 0x8e,
0x00, 0xb8,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xb9, 0xa7,
0xaf, 0xc2, 0xad, 0xc1, 0xce, 0xc3, 0x95, 0xa3,
0x90, 0xad, 0xb6, 0xab, 0x00, 0xa2, 0x00, 0x91,
0x00, 0xbb,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xb1, 0xbe, 0xac,
0xb1, 0xc4, 0xaf, 0xc1, 0xcd, 0xc1, 0x95, 0xa4,
0x91, 0xad, 0xb6, 0xab, 0x00, 0xa4, 0x00, 0x93,
0x00, 0xbd,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xbb, 0xa8,
0xb3, 0xc5, 0xb2, 0xc1, 0xcd, 0xc2, 0x95, 0xa3,
0x90, 0xad, 0xb6, 0xab, 0x00, 0xa6, 0x00, 0x95,
0x00, 0xc0,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xbb, 0xa8,
0xb0, 0xc3, 0xaf, 0xc2, 0xce, 0xc2, 0x94, 0xa2,
0x90, 0xac, 0xb6, 0xab, 0x00, 0xa8, 0x00, 0x98,
0x00, 0xc3,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xa9, 0xb8, 0xa5,
0xb3, 0xc5, 0xb2, 0xc1, 0xcc, 0xc0, 0x95, 0xa2,
0x90, 0xad, 0xb6, 0xab, 0x00, 0xaa, 0x00, 0x9a,
0x00, 0xc5,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xb0, 0xc0, 0xac,
0xb0, 0xc3, 0xaf, 0xc1, 0xcd, 0xc1, 0x95, 0xa2,
0x90, 0xac, 0xb5, 0xa9, 0x00, 0xac, 0x00, 0x9c,
0x00, 0xc8,
}, {
0xfa, 0x01, 0x43, 0x14, 0x45, 0xad, 0xbd, 0xa8,
0xaf, 0xc2, 0xaf, 0xc1, 0xcc, 0xc0, 0x95, 0xa2,
0x90, 0xac, 0xb5, 0xaa, 0x00, 0xb1, 0x00, 0xa1,
0x00, 0xcc,
},
};
static const struct s6e8aa0_variant s6e8aa0_variants[] = {
{
.version = 32,
.gamma_tables = s6e8aa0_gamma_tables_v32,
}, {
.version = 96,
.gamma_tables = s6e8aa0_gamma_tables_v96,
}, {
.version = 142,
.gamma_tables = s6e8aa0_gamma_tables_v142,
}, {
.version = 210,
.gamma_tables = s6e8aa0_gamma_tables_v142,
}
};
static void s6e8aa0_brightness_set(struct s6e8aa0 *ctx)
{
const u8 *gamma;
if (ctx->error)
return;
gamma = ctx->variant->gamma_tables[ctx->brightness];
if (ctx->version >= 142)
s6e8aa0_elvss_nvm_set(ctx);
s6e8aa0_dcs_write(ctx, gamma, GAMMA_TABLE_LEN);
/* update gamma table. */
s6e8aa0_dcs_write_seq_static(ctx, 0xf7, 0x03);
}
static void s6e8aa0_panel_init(struct s6e8aa0 *ctx)
{
s6e8aa0_apply_level_1_key(ctx);
s6e8aa0_apply_level_2_key(ctx);
msleep(20);
s6e8aa0_dcs_write_seq_static(ctx, MIPI_DCS_EXIT_SLEEP_MODE);
msleep(40);
s6e8aa0_panel_cond_set(ctx);
s6e8aa0_display_condition_set(ctx);
s6e8aa0_brightness_set(ctx);
s6e8aa0_etc_source_control(ctx);
s6e8aa0_etc_pentile_control(ctx);
s6e8aa0_elvss_nvm_set(ctx);
s6e8aa0_etc_power_control(ctx);
s6e8aa0_etc_elvss_control(ctx);
msleep(ctx->init_delay);
}
static void s6e8aa0_set_maximum_return_packet_size(struct s6e8aa0 *ctx,
u16 size)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
int ret;
if (ctx->error < 0)
return;
ret = mipi_dsi_set_maximum_return_packet_size(dsi, size);
if (ret < 0) {
dev_err(ctx->dev,
"error %d setting maximum return packet size to %d\n",
ret, size);
ctx->error = ret;
}
}
static void s6e8aa0_read_mtp_id(struct s6e8aa0 *ctx)
{
u8 id[3];
int ret, i;
ret = s6e8aa0_dcs_read(ctx, 0xd1, id, ARRAY_SIZE(id));
if (ret < 0 || ret < ARRAY_SIZE(id) || id[0] == 0x00) {
dev_err(ctx->dev, "read id failed\n");
ctx->error = -EIO;
return;
}
dev_info(ctx->dev, "ID: 0x%2x, 0x%2x, 0x%2x\n", id[0], id[1], id[2]);
for (i = 0; i < ARRAY_SIZE(s6e8aa0_variants); ++i) {
if (id[1] == s6e8aa0_variants[i].version)
break;
}
if (i >= ARRAY_SIZE(s6e8aa0_variants)) {
dev_err(ctx->dev, "unsupported display version %d\n", id[1]);
ctx->error = -EINVAL;
return;
}
ctx->variant = &s6e8aa0_variants[i];
ctx->version = id[1];
ctx->id = id[2];
}
static void s6e8aa0_set_sequence(struct s6e8aa0 *ctx)
{
s6e8aa0_set_maximum_return_packet_size(ctx, 3);
s6e8aa0_read_mtp_id(ctx);
s6e8aa0_panel_init(ctx);
s6e8aa0_dcs_write_seq_static(ctx, MIPI_DCS_SET_DISPLAY_ON);
}
static int s6e8aa0_power_on(struct s6e8aa0 *ctx)
{
int ret;
ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
if (ret < 0)
return ret;
msleep(ctx->power_on_delay);
gpiod_set_value(ctx->reset_gpio, 0);
usleep_range(10000, 11000);
gpiod_set_value(ctx->reset_gpio, 1);
msleep(ctx->reset_delay);
return 0;
}
static int s6e8aa0_power_off(struct s6e8aa0 *ctx)
{
return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
}
static int s6e8aa0_disable(struct drm_panel *panel)
{
return 0;
}
static int s6e8aa0_unprepare(struct drm_panel *panel)
{
struct s6e8aa0 *ctx = panel_to_s6e8aa0(panel);
s6e8aa0_dcs_write_seq_static(ctx, MIPI_DCS_ENTER_SLEEP_MODE);
s6e8aa0_dcs_write_seq_static(ctx, MIPI_DCS_SET_DISPLAY_OFF);
msleep(40);
s6e8aa0_clear_error(ctx);
return s6e8aa0_power_off(ctx);
}
static int s6e8aa0_prepare(struct drm_panel *panel)
{
struct s6e8aa0 *ctx = panel_to_s6e8aa0(panel);
int ret;
ret = s6e8aa0_power_on(ctx);
if (ret < 0)
return ret;
s6e8aa0_set_sequence(ctx);
ret = ctx->error;
if (ret < 0)
s6e8aa0_unprepare(panel);
return ret;
}
static int s6e8aa0_enable(struct drm_panel *panel)
{
return 0;
}
static int s6e8aa0_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
struct s6e8aa0 *ctx = panel_to_s6e8aa0(panel);
struct drm_display_mode *mode;
mode = drm_mode_create(connector->dev);
if (!mode) {
dev_err(panel->dev, "failed to create a new display mode\n");
return 0;
}
drm_display_mode_from_videomode(&ctx->vm, mode);
mode->width_mm = ctx->width_mm;
mode->height_mm = ctx->height_mm;
connector->display_info.width_mm = mode->width_mm;
connector->display_info.height_mm = mode->height_mm;
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
drm_mode_probed_add(connector, mode);
return 1;
}
static const struct drm_panel_funcs s6e8aa0_drm_funcs = {
.disable = s6e8aa0_disable,
.unprepare = s6e8aa0_unprepare,
.prepare = s6e8aa0_prepare,
.enable = s6e8aa0_enable,
.get_modes = s6e8aa0_get_modes,
};
static int s6e8aa0_parse_dt(struct s6e8aa0 *ctx)
{
struct device *dev = ctx->dev;
struct device_node *np = dev->of_node;
int ret;
ret = of_get_videomode(np, &ctx->vm, 0);
if (ret < 0)
return ret;
of_property_read_u32(np, "power-on-delay", &ctx->power_on_delay);
of_property_read_u32(np, "reset-delay", &ctx->reset_delay);
of_property_read_u32(np, "init-delay", &ctx->init_delay);
of_property_read_u32(np, "panel-width-mm", &ctx->width_mm);
of_property_read_u32(np, "panel-height-mm", &ctx->height_mm);
ctx->flip_horizontal = of_property_read_bool(np, "flip-horizontal");
ctx->flip_vertical = of_property_read_bool(np, "flip-vertical");
return 0;
}
static int s6e8aa0_probe(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
struct s6e8aa0 *ctx;
int ret;
ctx = devm_kzalloc(dev, sizeof(struct s6e8aa0), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dev = dev;
dsi->lanes = 4;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST
| MIPI_DSI_MODE_VIDEO_NO_HFP | MIPI_DSI_MODE_VIDEO_NO_HBP
| MIPI_DSI_MODE_VIDEO_NO_HSA | MIPI_DSI_MODE_NO_EOT_PACKET
| MIPI_DSI_MODE_VSYNC_FLUSH | MIPI_DSI_MODE_VIDEO_AUTO_VERT;
ret = s6e8aa0_parse_dt(ctx);
if (ret < 0)
return ret;
ctx->supplies[0].supply = "vdd3";
ctx->supplies[1].supply = "vci";
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
ctx->supplies);
if (ret < 0) {
dev_err(dev, "failed to get regulators: %d\n", ret);
return ret;
}
ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->reset_gpio)) {
dev_err(dev, "cannot get reset-gpios %ld\n",
PTR_ERR(ctx->reset_gpio));
return PTR_ERR(ctx->reset_gpio);
}
ctx->brightness = GAMMA_LEVEL_NUM - 1;
drm_panel_init(&ctx->panel, dev, &s6e8aa0_drm_funcs,
DRM_MODE_CONNECTOR_DSI);
drm_panel_add(&ctx->panel);
ret = mipi_dsi_attach(dsi);
if (ret < 0)
drm_panel_remove(&ctx->panel);
return ret;
}
static void s6e8aa0_remove(struct mipi_dsi_device *dsi)
{
struct s6e8aa0 *ctx = mipi_dsi_get_drvdata(dsi);
mipi_dsi_detach(dsi);
drm_panel_remove(&ctx->panel);
}
static const struct of_device_id s6e8aa0_of_match[] = {
{ .compatible = "samsung,s6e8aa0" },
{ }
};
MODULE_DEVICE_TABLE(of, s6e8aa0_of_match);
static struct mipi_dsi_driver s6e8aa0_driver = {
.probe = s6e8aa0_probe,
.remove = s6e8aa0_remove,
.driver = {
.name = "panel-samsung-s6e8aa0",
.of_match_table = s6e8aa0_of_match,
},
};
module_mipi_dsi_driver(s6e8aa0_driver);
MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
MODULE_AUTHOR("Joongmock Shin <jmock.shin@samsung.com>");
MODULE_AUTHOR("Eunchul Kim <chulspro.kim@samsung.com>");
MODULE_AUTHOR("Tomasz Figa <t.figa@samsung.com>");
MODULE_AUTHOR("Andrzej Hajda <a.hajda@samsung.com>");
MODULE_DESCRIPTION("MIPI-DSI based s6e8aa0 AMOLED LCD Panel Driver");
MODULE_LICENSE("GPL v2");
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