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1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * LCD: Formike, TFT 4.3", 480x800, RGB24, KWH043ST20-F01, DriverIC NT35510-16
4  * LCD initialization via SPI
5  * Based on:
6  *
7  */
8 #include <common.h>
9 #include <errno.h>
10 #include <spi.h>
11 
12 #define TAG_READ	0x80
13 #define TAG_WRITE	0x00
14 
15 #define TAG_DATA	0x40
16 #define TAG_COMMAND	0x00
17 
18 #define TAG_ADDR_H	0x20
19 #define TAG_ADDR_L	0x00
20 
spi_write_tag_val(struct spi_slave * spi,unsigned char tag,unsigned char val)21 static int spi_write_tag_val(struct spi_slave *spi, unsigned char tag,
22 			     unsigned char val)
23 {
24 	unsigned long flags = SPI_XFER_BEGIN;
25 	u8 buf[2];
26 	int ret;
27 
28 	buf[0] = tag;
29 	ret = spi_xfer(spi, 8, buf, NULL, flags);
30 	buf[0] = val;
31 	flags = SPI_XFER_END;
32 	ret = spi_xfer(spi, 8, buf, NULL, flags);
33 
34 #ifdef KWH043ST20_F01_SPI_DEBUG
35 	printf("spi_write_tag_val: tag=%02X, val=%02X ret: %d\n",
36 	       tag, val, ret);
37 #endif /* KWH043ST20_F01_SPI_DEBUG */
38 	if (ret)
39 		debug("%s: Failed to send: %d\n", __func__, ret);
40 
41 	return ret;
42 }
43 
spi_write_dat(struct spi_slave * spi,unsigned int val)44 static void spi_write_dat(struct spi_slave *spi, unsigned int val)
45 {
46 	spi_write_tag_val(spi, TAG_WRITE|TAG_DATA, val);
47 }
48 
spi_write_com(struct spi_slave * spi,unsigned int addr)49 static void spi_write_com(struct spi_slave *spi, unsigned int addr)
50 {
51 	spi_write_tag_val(spi, TAG_WRITE|TAG_COMMAND|TAG_ADDR_H,
52 			  (addr & 0xff00) >> 8);
53 	spi_write_tag_val(spi, TAG_WRITE|TAG_COMMAND|TAG_ADDR_L,
54 			  (addr & 0x00ff) >> 0);
55 }
56 
kwh043st20_f01_spi_startup(unsigned int bus,unsigned int cs,unsigned int max_hz,unsigned int spi_mode)57 int kwh043st20_f01_spi_startup(unsigned int bus, unsigned int cs,
58 	unsigned int max_hz, unsigned int spi_mode)
59 {
60 	struct spi_slave *spi;
61 	int ret;
62 
63 	spi = spi_setup_slave(bus, cs, max_hz, spi_mode);
64 	if (!spi) {
65 		debug("%s: Failed to set up slave\n", __func__);
66 		return -1;
67 	}
68 
69 	ret = spi_claim_bus(spi);
70 	if (ret) {
71 		debug("%s: Failed to claim SPI bus: %d\n", __func__, ret);
72 		goto err_claim_bus;
73 	}
74 
75 
76 	/* LV2 Page 1 enable */
77 	spi_write_com(spi, 0xF000);	spi_write_dat(spi, 0x55);
78 	spi_write_com(spi, 0xF001);	spi_write_dat(spi, 0xAA);
79 	spi_write_com(spi, 0xF002);	spi_write_dat(spi, 0x52);
80 	spi_write_com(spi, 0xF003);	spi_write_dat(spi, 0x08);
81 	spi_write_com(spi, 0xF004);	spi_write_dat(spi, 0x01);
82 
83 	/* AVDD Set AVDD 5.2V */
84 	spi_write_com(spi, 0xB000);	spi_write_dat(spi, 0x0D);
85 	spi_write_com(spi, 0xB001);	spi_write_dat(spi, 0x0D);
86 	spi_write_com(spi, 0xB002);	spi_write_dat(spi, 0x0D);
87 
88 	/* AVDD ratio */
89 	spi_write_com(spi, 0xB600);	spi_write_dat(spi, 0x34);
90 	spi_write_com(spi, 0xB601);	spi_write_dat(spi, 0x34);
91 	spi_write_com(spi, 0xB602);	spi_write_dat(spi, 0x34);
92 
93 	/* AVEE  -5.2V */
94 	spi_write_com(spi, 0xB100);	spi_write_dat(spi, 0x0D);
95 	spi_write_com(spi, 0xB101);	spi_write_dat(spi, 0x0D);
96 	spi_write_com(spi, 0xB102);	spi_write_dat(spi, 0x0D);
97 
98 	/* AVEE ratio */
99 	spi_write_com(spi, 0xB700);	spi_write_dat(spi, 0x35);
100 	spi_write_com(spi, 0xB701);	spi_write_dat(spi, 0x35);
101 	spi_write_com(spi, 0xB702);	spi_write_dat(spi, 0x35);
102 
103 	/* VCL  -2.5V */
104 	spi_write_com(spi, 0xB200);	spi_write_dat(spi, 0x00);
105 	spi_write_com(spi, 0xB201);	spi_write_dat(spi, 0x00);
106 	spi_write_com(spi, 0xB202);	spi_write_dat(spi, 0x00);
107 
108 	/* VCL ratio */
109 	spi_write_com(spi, 0xB800);	spi_write_dat(spi, 0x24);
110 	spi_write_com(spi, 0xB801);	spi_write_dat(spi, 0x24);
111 	spi_write_com(spi, 0xB802);	spi_write_dat(spi, 0x24);
112 
113 	/* VGH 15V */
114 	spi_write_com(spi, 0xBF00);	spi_write_dat(spi, 0x01);
115 	spi_write_com(spi, 0xB300);	spi_write_dat(spi, 0x08);
116 	spi_write_com(spi, 0xB301);	spi_write_dat(spi, 0x08);
117 	spi_write_com(spi, 0xB302);	spi_write_dat(spi, 0x08);
118 
119 	/* VGH ratio */
120 	spi_write_com(spi, 0xB900);	spi_write_dat(spi, 0x34);
121 	spi_write_com(spi, 0xB901);	spi_write_dat(spi, 0x34);
122 	spi_write_com(spi, 0xB902);	spi_write_dat(spi, 0x34);
123 
124 	/* VGLX ratio */
125 	spi_write_com(spi, 0xBA00);	spi_write_dat(spi, 0x24);
126 	spi_write_com(spi, 0xBA01);	spi_write_dat(spi, 0x24);
127 	spi_write_com(spi, 0xBA02);	spi_write_dat(spi, 0x24);
128 
129 	/* VGMP/VGSP 4.7V/0V */
130 	spi_write_com(spi, 0xBC00);	spi_write_dat(spi, 0x00);
131 	spi_write_com(spi, 0xBC01);	spi_write_dat(spi, 0x88);
132 	spi_write_com(spi, 0xBC02);	spi_write_dat(spi, 0x00);
133 
134 	/* VGMN/VGSN -4.7V/0V */
135 	spi_write_com(spi, 0xBD00);	spi_write_dat(spi, 0x00);
136 	spi_write_com(spi, 0xBD01);	spi_write_dat(spi, 0x88);
137 	spi_write_com(spi, 0xBD02);	spi_write_dat(spi, 0x00);
138 
139 	/* VCOM 1.525V */
140 	spi_write_com(spi, 0xBE00);	spi_write_dat(spi, 0x00);
141 	spi_write_com(spi, 0xBE01);	spi_write_dat(spi, 0x7A);
142 
143 	/* Gamma Setting */
144 	spi_write_com(spi, 0xD100);	spi_write_dat(spi, 0x00);
145 	spi_write_com(spi, 0xD101);	spi_write_dat(spi, 0x05);
146 	spi_write_com(spi, 0xD102);	spi_write_dat(spi, 0x00);
147 	spi_write_com(spi, 0xD103);	spi_write_dat(spi, 0x15);
148 	spi_write_com(spi, 0xD104);	spi_write_dat(spi, 0x00);
149 	spi_write_com(spi, 0xD105);	spi_write_dat(spi, 0x30);
150 	spi_write_com(spi, 0xD106);	spi_write_dat(spi, 0x00);
151 	spi_write_com(spi, 0xD107);	spi_write_dat(spi, 0x47);
152 	spi_write_com(spi, 0xD108);	spi_write_dat(spi, 0x00);
153 	spi_write_com(spi, 0xD109);	spi_write_dat(spi, 0x5B);
154 	spi_write_com(spi, 0xD10A);	spi_write_dat(spi, 0x00);
155 	spi_write_com(spi, 0xD10B);	spi_write_dat(spi, 0x7D);
156 	spi_write_com(spi, 0xD10C);	spi_write_dat(spi, 0x00);
157 	spi_write_com(spi, 0xD10D);	spi_write_dat(spi, 0x9D);
158 	spi_write_com(spi, 0xD10E);	spi_write_dat(spi, 0x00);
159 	spi_write_com(spi, 0xD10F);	spi_write_dat(spi, 0xCC);
160 	spi_write_com(spi, 0xD110);	spi_write_dat(spi, 0x00);
161 	spi_write_com(spi, 0xD111);	spi_write_dat(spi, 0xF3);
162 	spi_write_com(spi, 0xD112);	spi_write_dat(spi, 0x01);
163 	spi_write_com(spi, 0xD113);	spi_write_dat(spi, 0x32);
164 	spi_write_com(spi, 0xD114);	spi_write_dat(spi, 0x01);
165 	spi_write_com(spi, 0xD115);	spi_write_dat(spi, 0x63);
166 	spi_write_com(spi, 0xD116);	spi_write_dat(spi, 0x01);
167 	spi_write_com(spi, 0xD117);	spi_write_dat(spi, 0xB1);
168 	spi_write_com(spi, 0xD118);	spi_write_dat(spi, 0x01);
169 	spi_write_com(spi, 0xD119);	spi_write_dat(spi, 0xF0);
170 	spi_write_com(spi, 0xD11A);	spi_write_dat(spi, 0x01);
171 	spi_write_com(spi, 0xD11B);	spi_write_dat(spi, 0xF2);
172 	spi_write_com(spi, 0xD11C);	spi_write_dat(spi, 0x02);
173 	spi_write_com(spi, 0xD11D);	spi_write_dat(spi, 0x2A);
174 	spi_write_com(spi, 0xD11E);	spi_write_dat(spi, 0x02);
175 	spi_write_com(spi, 0xD11F);	spi_write_dat(spi, 0x67);
176 	spi_write_com(spi, 0xD120);	spi_write_dat(spi, 0x02);
177 	spi_write_com(spi, 0xD121);	spi_write_dat(spi, 0x90);
178 	spi_write_com(spi, 0xD122);	spi_write_dat(spi, 0x02);
179 	spi_write_com(spi, 0xD123);	spi_write_dat(spi, 0xCB);
180 	spi_write_com(spi, 0xD124);	spi_write_dat(spi, 0x02);
181 	spi_write_com(spi, 0xD125);	spi_write_dat(spi, 0xF2);
182 	spi_write_com(spi, 0xD126);	spi_write_dat(spi, 0x03);
183 	spi_write_com(spi, 0xD127);	spi_write_dat(spi, 0x2A);
184 	spi_write_com(spi, 0xD128);	spi_write_dat(spi, 0x03);
185 	spi_write_com(spi, 0xD129);	spi_write_dat(spi, 0x51);
186 	spi_write_com(spi, 0xD12A);	spi_write_dat(spi, 0x03);
187 	spi_write_com(spi, 0xD12B);	spi_write_dat(spi, 0x80);
188 	spi_write_com(spi, 0xD12C);	spi_write_dat(spi, 0x03);
189 	spi_write_com(spi, 0xD12D);	spi_write_dat(spi, 0x9F);
190 	spi_write_com(spi, 0xD12E);	spi_write_dat(spi, 0x03);
191 	spi_write_com(spi, 0xD12F);	spi_write_dat(spi, 0xBE);
192 	spi_write_com(spi, 0xD130);	spi_write_dat(spi, 0x03);
193 	spi_write_com(spi, 0xD131);	spi_write_dat(spi, 0xF9);
194 	spi_write_com(spi, 0xD132);	spi_write_dat(spi, 0x03);
195 	spi_write_com(spi, 0xD133);	spi_write_dat(spi, 0xFF);
196 
197 	spi_write_com(spi, 0xD200);	spi_write_dat(spi, 0x00);
198 	spi_write_com(spi, 0xD201);	spi_write_dat(spi, 0x05);
199 	spi_write_com(spi, 0xD202);	spi_write_dat(spi, 0x00);
200 	spi_write_com(spi, 0xD203);	spi_write_dat(spi, 0x15);
201 	spi_write_com(spi, 0xD204);	spi_write_dat(spi, 0x00);
202 	spi_write_com(spi, 0xD205);	spi_write_dat(spi, 0x30);
203 	spi_write_com(spi, 0xD206);	spi_write_dat(spi, 0x00);
204 	spi_write_com(spi, 0xD207);	spi_write_dat(spi, 0x47);
205 	spi_write_com(spi, 0xD208);	spi_write_dat(spi, 0x00);
206 	spi_write_com(spi, 0xD209);	spi_write_dat(spi, 0x5B);
207 	spi_write_com(spi, 0xD20A);	spi_write_dat(spi, 0x00);
208 	spi_write_com(spi, 0xD20B);	spi_write_dat(spi, 0x7D);
209 	spi_write_com(spi, 0xD20C);	spi_write_dat(spi, 0x00);
210 	spi_write_com(spi, 0xD20D);	spi_write_dat(spi, 0x9D);
211 	spi_write_com(spi, 0xD20E);	spi_write_dat(spi, 0x00);
212 	spi_write_com(spi, 0xD20F);	spi_write_dat(spi, 0xCC);
213 	spi_write_com(spi, 0xD210);	spi_write_dat(spi, 0x00);
214 	spi_write_com(spi, 0xD211);	spi_write_dat(spi, 0xF3);
215 	spi_write_com(spi, 0xD212);	spi_write_dat(spi, 0x01);
216 	spi_write_com(spi, 0xD213);	spi_write_dat(spi, 0x32);
217 	spi_write_com(spi, 0xD214);	spi_write_dat(spi, 0x01);
218 	spi_write_com(spi, 0xD215);	spi_write_dat(spi, 0x63);
219 	spi_write_com(spi, 0xD216);	spi_write_dat(spi, 0x01);
220 	spi_write_com(spi, 0xD217);	spi_write_dat(spi, 0xB1);
221 	spi_write_com(spi, 0xD218);	spi_write_dat(spi, 0x01);
222 	spi_write_com(spi, 0xD219);	spi_write_dat(spi, 0xF0);
223 	spi_write_com(spi, 0xD21A);	spi_write_dat(spi, 0x01);
224 	spi_write_com(spi, 0xD21B);	spi_write_dat(spi, 0xF2);
225 	spi_write_com(spi, 0xD21C);	spi_write_dat(spi, 0x02);
226 	spi_write_com(spi, 0xD21D);	spi_write_dat(spi, 0x2A);
227 	spi_write_com(spi, 0xD21E);	spi_write_dat(spi, 0x02);
228 	spi_write_com(spi, 0xD21F);	spi_write_dat(spi, 0x67);
229 	spi_write_com(spi, 0xD220);	spi_write_dat(spi, 0x02);
230 	spi_write_com(spi, 0xD221);	spi_write_dat(spi, 0x90);
231 	spi_write_com(spi, 0xD222);	spi_write_dat(spi, 0x02);
232 	spi_write_com(spi, 0xD223);	spi_write_dat(spi, 0xCB);
233 	spi_write_com(spi, 0xD224);	spi_write_dat(spi, 0x02);
234 	spi_write_com(spi, 0xD225);	spi_write_dat(spi, 0xF2);
235 	spi_write_com(spi, 0xD226);	spi_write_dat(spi, 0x03);
236 	spi_write_com(spi, 0xD227);	spi_write_dat(spi, 0x2A);
237 	spi_write_com(spi, 0xD228);	spi_write_dat(spi, 0x03);
238 	spi_write_com(spi, 0xD229);	spi_write_dat(spi, 0x51);
239 	spi_write_com(spi, 0xD22A);	spi_write_dat(spi, 0x03);
240 	spi_write_com(spi, 0xD22B);	spi_write_dat(spi, 0x80);
241 	spi_write_com(spi, 0xD22C);	spi_write_dat(spi, 0x03);
242 	spi_write_com(spi, 0xD22D);	spi_write_dat(spi, 0x9F);
243 	spi_write_com(spi, 0xD22E);	spi_write_dat(spi, 0x03);
244 	spi_write_com(spi, 0xD22F);	spi_write_dat(spi, 0xBE);
245 	spi_write_com(spi, 0xD230);	spi_write_dat(spi, 0x03);
246 	spi_write_com(spi, 0xD231);	spi_write_dat(spi, 0xF9);
247 	spi_write_com(spi, 0xD232);	spi_write_dat(spi, 0x03);
248 	spi_write_com(spi, 0xD233);	spi_write_dat(spi, 0xFF);
249 
250 	spi_write_com(spi, 0xD300);	spi_write_dat(spi, 0x00);
251 	spi_write_com(spi, 0xD301);	spi_write_dat(spi, 0x05);
252 	spi_write_com(spi, 0xD302);	spi_write_dat(spi, 0x00);
253 	spi_write_com(spi, 0xD303);	spi_write_dat(spi, 0x15);
254 	spi_write_com(spi, 0xD304);	spi_write_dat(spi, 0x00);
255 	spi_write_com(spi, 0xD305);	spi_write_dat(spi, 0x30);
256 	spi_write_com(spi, 0xD306);	spi_write_dat(spi, 0x00);
257 	spi_write_com(spi, 0xD307);	spi_write_dat(spi, 0x47);
258 	spi_write_com(spi, 0xD308);	spi_write_dat(spi, 0x00);
259 	spi_write_com(spi, 0xD309);	spi_write_dat(spi, 0x5B);
260 	spi_write_com(spi, 0xD30A);	spi_write_dat(spi, 0x00);
261 	spi_write_com(spi, 0xD30B);	spi_write_dat(spi, 0x7D);
262 	spi_write_com(spi, 0xD30C);	spi_write_dat(spi, 0x00);
263 	spi_write_com(spi, 0xD30D);	spi_write_dat(spi, 0x9D);
264 	spi_write_com(spi, 0xD30E);	spi_write_dat(spi, 0x00);
265 	spi_write_com(spi, 0xD30F);	spi_write_dat(spi, 0xCC);
266 	spi_write_com(spi, 0xD310);	spi_write_dat(spi, 0x00);
267 	spi_write_com(spi, 0xD311);	spi_write_dat(spi, 0xF3);
268 	spi_write_com(spi, 0xD312);	spi_write_dat(spi, 0x01);
269 	spi_write_com(spi, 0xD313);	spi_write_dat(spi, 0x32);
270 	spi_write_com(spi, 0xD314);	spi_write_dat(spi, 0x01);
271 	spi_write_com(spi, 0xD315);	spi_write_dat(spi, 0x63);
272 	spi_write_com(spi, 0xD316);	spi_write_dat(spi, 0x01);
273 	spi_write_com(spi, 0xD317);	spi_write_dat(spi, 0xB1);
274 	spi_write_com(spi, 0xD318);	spi_write_dat(spi, 0x01);
275 	spi_write_com(spi, 0xD319);	spi_write_dat(spi, 0xF0);
276 	spi_write_com(spi, 0xD31A);	spi_write_dat(spi, 0x01);
277 	spi_write_com(spi, 0xD31B);	spi_write_dat(spi, 0xF2);
278 	spi_write_com(spi, 0xD31C);	spi_write_dat(spi, 0x02);
279 	spi_write_com(spi, 0xD31D);	spi_write_dat(spi, 0x2A);
280 	spi_write_com(spi, 0xD31E);	spi_write_dat(spi, 0x02);
281 	spi_write_com(spi, 0xD31F);	spi_write_dat(spi, 0x67);
282 	spi_write_com(spi, 0xD320);	spi_write_dat(spi, 0x02);
283 	spi_write_com(spi, 0xD321);	spi_write_dat(spi, 0x90);
284 	spi_write_com(spi, 0xD322);	spi_write_dat(spi, 0x02);
285 	spi_write_com(spi, 0xD323);	spi_write_dat(spi, 0xCB);
286 	spi_write_com(spi, 0xD324);	spi_write_dat(spi, 0x02);
287 	spi_write_com(spi, 0xD325);	spi_write_dat(spi, 0xF2);
288 	spi_write_com(spi, 0xD326);	spi_write_dat(spi, 0x03);
289 	spi_write_com(spi, 0xD327);	spi_write_dat(spi, 0x2A);
290 	spi_write_com(spi, 0xD328);	spi_write_dat(spi, 0x03);
291 	spi_write_com(spi, 0xD329);	spi_write_dat(spi, 0x51);
292 	spi_write_com(spi, 0xD32A);	spi_write_dat(spi, 0x03);
293 	spi_write_com(spi, 0xD32B);	spi_write_dat(spi, 0x80);
294 	spi_write_com(spi, 0xD32C);	spi_write_dat(spi, 0x03);
295 	spi_write_com(spi, 0xD32D);	spi_write_dat(spi, 0x9F);
296 	spi_write_com(spi, 0xD32E);	spi_write_dat(spi, 0x03);
297 	spi_write_com(spi, 0xD32F);	spi_write_dat(spi, 0xBE);
298 	spi_write_com(spi, 0xD330);	spi_write_dat(spi, 0x03);
299 	spi_write_com(spi, 0xD331);	spi_write_dat(spi, 0xF9);
300 	spi_write_com(spi, 0xD332);	spi_write_dat(spi, 0x03);
301 	spi_write_com(spi, 0xD333);	spi_write_dat(spi, 0xFF);
302 
303 	spi_write_com(spi, 0xD400);	spi_write_dat(spi, 0x00);
304 	spi_write_com(spi, 0xD401);	spi_write_dat(spi, 0x05);
305 	spi_write_com(spi, 0xD402);	spi_write_dat(spi, 0x00);
306 	spi_write_com(spi, 0xD403);	spi_write_dat(spi, 0x15);
307 	spi_write_com(spi, 0xD404);	spi_write_dat(spi, 0x00);
308 	spi_write_com(spi, 0xD405);	spi_write_dat(spi, 0x30);
309 	spi_write_com(spi, 0xD406);	spi_write_dat(spi, 0x00);
310 	spi_write_com(spi, 0xD407);	spi_write_dat(spi, 0x47);
311 	spi_write_com(spi, 0xD408);	spi_write_dat(spi, 0x00);
312 	spi_write_com(spi, 0xD409);	spi_write_dat(spi, 0x5B);
313 	spi_write_com(spi, 0xD40A);	spi_write_dat(spi, 0x00);
314 	spi_write_com(spi, 0xD40B);	spi_write_dat(spi, 0x7D);
315 	spi_write_com(spi, 0xD40C);	spi_write_dat(spi, 0x00);
316 	spi_write_com(spi, 0xD40D);	spi_write_dat(spi, 0x9D);
317 	spi_write_com(spi, 0xD40E);	spi_write_dat(spi, 0x00);
318 	spi_write_com(spi, 0xD40F);	spi_write_dat(spi, 0xCC);
319 	spi_write_com(spi, 0xD410);	spi_write_dat(spi, 0x00);
320 	spi_write_com(spi, 0xD411);	spi_write_dat(spi, 0xF3);
321 	spi_write_com(spi, 0xD412);	spi_write_dat(spi, 0x01);
322 	spi_write_com(spi, 0xD413);	spi_write_dat(spi, 0x32);
323 	spi_write_com(spi, 0xD414);	spi_write_dat(spi, 0x01);
324 	spi_write_com(spi, 0xD415);	spi_write_dat(spi, 0x63);
325 	spi_write_com(spi, 0xD416);	spi_write_dat(spi, 0x01);
326 	spi_write_com(spi, 0xD417);	spi_write_dat(spi, 0xB1);
327 	spi_write_com(spi, 0xD418);	spi_write_dat(spi, 0x01);
328 	spi_write_com(spi, 0xD419);	spi_write_dat(spi, 0xF0);
329 	spi_write_com(spi, 0xD41A);	spi_write_dat(spi, 0x01);
330 	spi_write_com(spi, 0xD41B);	spi_write_dat(spi, 0xF2);
331 	spi_write_com(spi, 0xD41C);	spi_write_dat(spi, 0x02);
332 	spi_write_com(spi, 0xD41D);	spi_write_dat(spi, 0x2A);
333 	spi_write_com(spi, 0xD41E);	spi_write_dat(spi, 0x02);
334 	spi_write_com(spi, 0xD41F);	spi_write_dat(spi, 0x67);
335 	spi_write_com(spi, 0xD420);	spi_write_dat(spi, 0x02);
336 	spi_write_com(spi, 0xD421);	spi_write_dat(spi, 0x90);
337 	spi_write_com(spi, 0xD422);	spi_write_dat(spi, 0x02);
338 	spi_write_com(spi, 0xD423);	spi_write_dat(spi, 0xCB);
339 	spi_write_com(spi, 0xD424);	spi_write_dat(spi, 0x02);
340 	spi_write_com(spi, 0xD425);	spi_write_dat(spi, 0xF2);
341 	spi_write_com(spi, 0xD426);	spi_write_dat(spi, 0x03);
342 	spi_write_com(spi, 0xD427);	spi_write_dat(spi, 0x2A);
343 	spi_write_com(spi, 0xD428);	spi_write_dat(spi, 0x03);
344 	spi_write_com(spi, 0xD429);	spi_write_dat(spi, 0x51);
345 	spi_write_com(spi, 0xD42A);	spi_write_dat(spi, 0x03);
346 	spi_write_com(spi, 0xD42B);	spi_write_dat(spi, 0x80);
347 	spi_write_com(spi, 0xD42C);	spi_write_dat(spi, 0x03);
348 	spi_write_com(spi, 0xD42D);	spi_write_dat(spi, 0x9F);
349 	spi_write_com(spi, 0xD42E);	spi_write_dat(spi, 0x03);
350 	spi_write_com(spi, 0xD42F);	spi_write_dat(spi, 0xBE);
351 	spi_write_com(spi, 0xD430);	spi_write_dat(spi, 0x03);
352 	spi_write_com(spi, 0xD431);	spi_write_dat(spi, 0xF9);
353 	spi_write_com(spi, 0xD432);	spi_write_dat(spi, 0x03);
354 	spi_write_com(spi, 0xD433);	spi_write_dat(spi, 0xFF);
355 
356 	spi_write_com(spi, 0xD500);	spi_write_dat(spi, 0x00);
357 	spi_write_com(spi, 0xD501);	spi_write_dat(spi, 0x05);
358 	spi_write_com(spi, 0xD502);	spi_write_dat(spi, 0x00);
359 	spi_write_com(spi, 0xD503);	spi_write_dat(spi, 0x15);
360 	spi_write_com(spi, 0xD504);	spi_write_dat(spi, 0x00);
361 	spi_write_com(spi, 0xD505);	spi_write_dat(spi, 0x30);
362 	spi_write_com(spi, 0xD506);	spi_write_dat(spi, 0x00);
363 	spi_write_com(spi, 0xD507);	spi_write_dat(spi, 0x47);
364 	spi_write_com(spi, 0xD508);	spi_write_dat(spi, 0x00);
365 	spi_write_com(spi, 0xD509);	spi_write_dat(spi, 0x5B);
366 	spi_write_com(spi, 0xD50A);	spi_write_dat(spi, 0x00);
367 	spi_write_com(spi, 0xD50B);	spi_write_dat(spi, 0x7D);
368 	spi_write_com(spi, 0xD50C);	spi_write_dat(spi, 0x00);
369 	spi_write_com(spi, 0xD50D);	spi_write_dat(spi, 0x9D);
370 	spi_write_com(spi, 0xD50E);	spi_write_dat(spi, 0x00);
371 	spi_write_com(spi, 0xD50F);	spi_write_dat(spi, 0xCC);
372 	spi_write_com(spi, 0xD510);	spi_write_dat(spi, 0x00);
373 	spi_write_com(spi, 0xD511);	spi_write_dat(spi, 0xF3);
374 	spi_write_com(spi, 0xD512);	spi_write_dat(spi, 0x01);
375 	spi_write_com(spi, 0xD513);	spi_write_dat(spi, 0x32);
376 	spi_write_com(spi, 0xD514);	spi_write_dat(spi, 0x01);
377 	spi_write_com(spi, 0xD515);	spi_write_dat(spi, 0x63);
378 	spi_write_com(spi, 0xD516);	spi_write_dat(spi, 0x01);
379 	spi_write_com(spi, 0xD517);	spi_write_dat(spi, 0xB1);
380 	spi_write_com(spi, 0xD518);	spi_write_dat(spi, 0x01);
381 	spi_write_com(spi, 0xD519);	spi_write_dat(spi, 0xF0);
382 	spi_write_com(spi, 0xD51A);	spi_write_dat(spi, 0x01);
383 	spi_write_com(spi, 0xD51B);	spi_write_dat(spi, 0xF2);
384 	spi_write_com(spi, 0xD51C);	spi_write_dat(spi, 0x02);
385 	spi_write_com(spi, 0xD51D);	spi_write_dat(spi, 0x2A);
386 	spi_write_com(spi, 0xD51E);	spi_write_dat(spi, 0x02);
387 	spi_write_com(spi, 0xD51F);	spi_write_dat(spi, 0x67);
388 	spi_write_com(spi, 0xD520);	spi_write_dat(spi, 0x02);
389 	spi_write_com(spi, 0xD521);	spi_write_dat(spi, 0x90);
390 	spi_write_com(spi, 0xD522);	spi_write_dat(spi, 0x02);
391 	spi_write_com(spi, 0xD523);	spi_write_dat(spi, 0xCB);
392 	spi_write_com(spi, 0xD524);	spi_write_dat(spi, 0x02);
393 	spi_write_com(spi, 0xD525);	spi_write_dat(spi, 0xF2);
394 	spi_write_com(spi, 0xD526);	spi_write_dat(spi, 0x03);
395 	spi_write_com(spi, 0xD527);	spi_write_dat(spi, 0x2A);
396 	spi_write_com(spi, 0xD528);	spi_write_dat(spi, 0x03);
397 	spi_write_com(spi, 0xD529);	spi_write_dat(spi, 0x51);
398 	spi_write_com(spi, 0xD52A);	spi_write_dat(spi, 0x03);
399 	spi_write_com(spi, 0xD52B);	spi_write_dat(spi, 0x80);
400 	spi_write_com(spi, 0xD52C);	spi_write_dat(spi, 0x03);
401 	spi_write_com(spi, 0xD52D);	spi_write_dat(spi, 0x9F);
402 	spi_write_com(spi, 0xD52E);	spi_write_dat(spi, 0x03);
403 	spi_write_com(spi, 0xD52F);	spi_write_dat(spi, 0xBE);
404 	spi_write_com(spi, 0xD530);	spi_write_dat(spi, 0x03);
405 	spi_write_com(spi, 0xD531);	spi_write_dat(spi, 0xF9);
406 	spi_write_com(spi, 0xD532);	spi_write_dat(spi, 0x03);
407 	spi_write_com(spi, 0xD533);	spi_write_dat(spi, 0xFF);
408 
409 	spi_write_com(spi, 0xD600);	spi_write_dat(spi, 0x00);
410 	spi_write_com(spi, 0xD601);	spi_write_dat(spi, 0x05);
411 	spi_write_com(spi, 0xD602);	spi_write_dat(spi, 0x00);
412 	spi_write_com(spi, 0xD603);	spi_write_dat(spi, 0x15);
413 	spi_write_com(spi, 0xD604);	spi_write_dat(spi, 0x00);
414 	spi_write_com(spi, 0xD605);	spi_write_dat(spi, 0x30);
415 	spi_write_com(spi, 0xD606);	spi_write_dat(spi, 0x00);
416 	spi_write_com(spi, 0xD607);	spi_write_dat(spi, 0x47);
417 	spi_write_com(spi, 0xD608);	spi_write_dat(spi, 0x00);
418 	spi_write_com(spi, 0xD609);	spi_write_dat(spi, 0x5B);
419 	spi_write_com(spi, 0xD60A);	spi_write_dat(spi, 0x00);
420 	spi_write_com(spi, 0xD60B);	spi_write_dat(spi, 0x7D);
421 	spi_write_com(spi, 0xD60C);	spi_write_dat(spi, 0x00);
422 	spi_write_com(spi, 0xD60D);	spi_write_dat(spi, 0x9D);
423 	spi_write_com(spi, 0xD60E);	spi_write_dat(spi, 0x00);
424 	spi_write_com(spi, 0xD60F);	spi_write_dat(spi, 0xCC);
425 	spi_write_com(spi, 0xD610);	spi_write_dat(spi, 0x00);
426 	spi_write_com(spi, 0xD611);	spi_write_dat(spi, 0xF3);
427 	spi_write_com(spi, 0xD612);	spi_write_dat(spi, 0x01);
428 	spi_write_com(spi, 0xD613);	spi_write_dat(spi, 0x32);
429 	spi_write_com(spi, 0xD614);	spi_write_dat(spi, 0x01);
430 	spi_write_com(spi, 0xD615);	spi_write_dat(spi, 0x63);
431 	spi_write_com(spi, 0xD616);	spi_write_dat(spi, 0x01);
432 	spi_write_com(spi, 0xD617);	spi_write_dat(spi, 0xB1);
433 	spi_write_com(spi, 0xD618);	spi_write_dat(spi, 0x01);
434 	spi_write_com(spi, 0xD619);	spi_write_dat(spi, 0xF0);
435 	spi_write_com(spi, 0xD61A);	spi_write_dat(spi, 0x01);
436 	spi_write_com(spi, 0xD61B);	spi_write_dat(spi, 0xF2);
437 	spi_write_com(spi, 0xD61C);	spi_write_dat(spi, 0x02);
438 	spi_write_com(spi, 0xD61D);	spi_write_dat(spi, 0x2A);
439 	spi_write_com(spi, 0xD61E);	spi_write_dat(spi, 0x02);
440 	spi_write_com(spi, 0xD61F);	spi_write_dat(spi, 0x67);
441 	spi_write_com(spi, 0xD620);	spi_write_dat(spi, 0x02);
442 	spi_write_com(spi, 0xD621);	spi_write_dat(spi, 0x90);
443 	spi_write_com(spi, 0xD622);	spi_write_dat(spi, 0x02);
444 	spi_write_com(spi, 0xD623);	spi_write_dat(spi, 0xCB);
445 	spi_write_com(spi, 0xD624);	spi_write_dat(spi, 0x02);
446 	spi_write_com(spi, 0xD625);	spi_write_dat(spi, 0xF2);
447 	spi_write_com(spi, 0xD626);	spi_write_dat(spi, 0x03);
448 	spi_write_com(spi, 0xD627);	spi_write_dat(spi, 0x2A);
449 	spi_write_com(spi, 0xD628);	spi_write_dat(spi, 0x03);
450 	spi_write_com(spi, 0xD629);	spi_write_dat(spi, 0x51);
451 	spi_write_com(spi, 0xD62A);	spi_write_dat(spi, 0x03);
452 	spi_write_com(spi, 0xD62B);	spi_write_dat(spi, 0x80);
453 	spi_write_com(spi, 0xD62C);	spi_write_dat(spi, 0x03);
454 	spi_write_com(spi, 0xD62D);	spi_write_dat(spi, 0x9F);
455 	spi_write_com(spi, 0xD62E);	spi_write_dat(spi, 0x03);
456 	spi_write_com(spi, 0xD62F);	spi_write_dat(spi, 0xBE);
457 	spi_write_com(spi, 0xD630);	spi_write_dat(spi, 0x03);
458 	spi_write_com(spi, 0xD631);	spi_write_dat(spi, 0xF9);
459 	spi_write_com(spi, 0xD632);	spi_write_dat(spi, 0x03);
460 	spi_write_com(spi, 0xD633);	spi_write_dat(spi, 0xFF);
461 
462 	/* LV2 Page 0 enable */
463 	spi_write_com(spi, 0xF000);	spi_write_dat(spi, 0x55);
464 	spi_write_com(spi, 0xF001);	spi_write_dat(spi, 0xAA);
465 	spi_write_com(spi, 0xF002);	spi_write_dat(spi, 0x52);
466 	spi_write_com(spi, 0xF003);	spi_write_dat(spi, 0x08);
467 	spi_write_com(spi, 0xF004);	spi_write_dat(spi, 0x00);
468 
469 	/* Display control */
470 	spi_write_com(spi, 0xB100);	spi_write_dat(spi, 0xFC);
471 	spi_write_com(spi, 0xB101);	spi_write_dat(spi, 0x00);
472 
473 	/* Source hold time */
474 	spi_write_com(spi, 0xB600);	spi_write_dat(spi, 0x05);
475 
476 	/* Gate EQ control */
477 	spi_write_com(spi, 0xB700);	spi_write_dat(spi, 0x70);
478 	spi_write_com(spi, 0xB701);	spi_write_dat(spi, 0x70);
479 
480 	/* Source EQ control (Mode 2) */
481 	spi_write_com(spi, 0xB800);	spi_write_dat(spi, 0x01);
482 	spi_write_com(spi, 0xB801);	spi_write_dat(spi, 0x05);
483 	spi_write_com(spi, 0xB802);	spi_write_dat(spi, 0x05);
484 	spi_write_com(spi, 0xB803);	spi_write_dat(spi, 0x05);
485 
486 	/* Inversion mode  (Column) */
487 	spi_write_com(spi, 0xBC00);	spi_write_dat(spi, 0x00);
488 	spi_write_com(spi, 0xBC01);	spi_write_dat(spi, 0x00);
489 	spi_write_com(spi, 0xBC02);	spi_write_dat(spi, 0x00);
490 
491 	/* Timing control 8phase dual side/4H/4delay/RST_EN */
492 	spi_write_com(spi, 0xC900);	spi_write_dat(spi, 0xD0);
493 	spi_write_com(spi, 0xC901);	spi_write_dat(spi, 0x82);
494 	spi_write_com(spi, 0xC902);	spi_write_dat(spi, 0x50);
495 	spi_write_com(spi, 0xC903);	spi_write_dat(spi, 0x50);
496 	spi_write_com(spi, 0xC904);	spi_write_dat(spi, 0x50);
497 
498 	spi_write_com(spi, 0x3A00);	spi_write_dat(spi, 0x55);
499 	mdelay(120);
500 	spi_write_com(spi, 0x1100);
501 	mdelay(120);
502 	spi_write_com(spi, 0x2900);
503 	mdelay(120);
504 	/* spi_write_com(spi, 0x2100);	spi_write_dat(spi, 0x00); */
505 	spi_write_com(spi, 0x2C00);
506 
507 	return 0;
508 err_claim_bus:
509 	spi_free_slave(spi);
510 	return -1;
511 }
512