1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
| /*
| * ld9040 AMOLED LCD panel driver.
| *
| * Copyright (C) 2012 Samsung Electronics
| * Donghwa Lee <dh09.lee@samsung.com>
| *
| * SPDX-License-Identifier: GPL-2.0+
| */
|
| #include <common.h>
| #include <spi.h>
|
| static const unsigned char SEQ_USER_SETTING[] = {
| 0xF0, 0x5A, 0x5A
| };
|
| static const unsigned char SEQ_ELVSS_ON[] = {
| 0xB1, 0x0D, 0x00, 0x16,
| };
|
| static const unsigned char SEQ_GTCON[] = {
| 0xF7, 0x09, 0x00, 0x00,
| };
|
| static const unsigned char SEQ_PANEL_CONDITION[] = {
| 0xF8, 0x05, 0x65, 0x96, 0x71, 0x7D, 0x19, 0x3B,
| 0x0D, 0x19, 0x7E, 0x0D, 0xE2, 0x00, 0x00, 0x7E,
| 0x7D, 0x07, 0x07, 0x20, 0x20, 0x20, 0x02, 0x02,
| };
|
| static const unsigned char SEQ_GAMMA_SET1[] = {
| 0xF9, 0x00, 0xA7, 0xB4, 0xAE, 0xBF, 0x00, 0x91,
| 0x00, 0xB2, 0xB4, 0xAA, 0xBB, 0x00, 0xAC, 0x00,
| 0xB3, 0xB1, 0xAA, 0xBC, 0x00, 0xB3,
| };
|
| static const unsigned char SEQ_GAMMA_CTRL[] = {
| 0xFB, 0x02, 0x5A,
| };
|
| static const unsigned char SEQ_DISPCTL[] = {
| 0xF2, 0x02, 0x08, 0x08, 0x10, 0x10,
| };
|
| static const unsigned char SEQ_MANPWR[] = {
| 0xB0, 0x04,
| };
|
| static const unsigned char SEQ_PWR_CTRL[] = {
| 0xF4, 0x0A, 0x87, 0x25, 0x6A, 0x44, 0x02, 0x88,
| };
|
| static const unsigned char SEQ_SLPOUT[] = {
| 0x11,
| };
|
| static const unsigned char SEQ_DISPON[] = {
| 0x29,
| };
|
| static const unsigned char SEQ_DISPOFF[] = {
| 0x28,
| };
|
| static void ld9040_spi_write(const unsigned char *wbuf, unsigned int size_cmd)
| {
| int i = 0;
|
| /*
| * Data are transmitted in 9-bit words:
| * the first bit is command/parameter, the other are the value.
| * The value's LSB is shifted to MSB position, to be sent as 9th bit
| */
|
| unsigned int data_out = 0, data_in = 0;
| for (i = 0; i < size_cmd; i++) {
| data_out = wbuf[i] >> 1;
| if (i != 0)
| data_out += 0x0080;
| if (wbuf[i] & 0x01)
| data_out += 0x8000;
| spi_xfer(NULL, 9, &data_out, &data_in, SPI_XFER_BEGIN);
| }
| }
|
| void ld9040_cfg_ldo(void)
| {
| udelay(10);
|
| ld9040_spi_write(SEQ_USER_SETTING,
| ARRAY_SIZE(SEQ_USER_SETTING));
| ld9040_spi_write(SEQ_PANEL_CONDITION,
| ARRAY_SIZE(SEQ_PANEL_CONDITION));
| ld9040_spi_write(SEQ_DISPCTL, ARRAY_SIZE(SEQ_DISPCTL));
| ld9040_spi_write(SEQ_MANPWR, ARRAY_SIZE(SEQ_MANPWR));
| ld9040_spi_write(SEQ_PWR_CTRL, ARRAY_SIZE(SEQ_PWR_CTRL));
| ld9040_spi_write(SEQ_ELVSS_ON, ARRAY_SIZE(SEQ_ELVSS_ON));
| ld9040_spi_write(SEQ_GTCON, ARRAY_SIZE(SEQ_GTCON));
| ld9040_spi_write(SEQ_GAMMA_SET1, ARRAY_SIZE(SEQ_GAMMA_SET1));
| ld9040_spi_write(SEQ_GAMMA_CTRL, ARRAY_SIZE(SEQ_GAMMA_CTRL));
| ld9040_spi_write(SEQ_SLPOUT, ARRAY_SIZE(SEQ_SLPOUT));
|
| udelay(120);
| }
|
| void ld9040_enable_ldo(unsigned int onoff)
| {
| if (onoff)
| ld9040_spi_write(SEQ_DISPON, ARRAY_SIZE(SEQ_DISPON));
| else
| ld9040_spi_write(SEQ_DISPOFF, ARRAY_SIZE(SEQ_DISPOFF));
| }
|
|
