21 struct lt7911d {  struct
39 static int I2C_Write_Byte(struct lt7911d *lt7911d, unsigned char reg, unsigned char val)  in I2C_Write_Byte()  argument
43 	ret = regmap_write(lt7911d->regmap, reg, val);  in I2C_Write_Byte()
51 static unsigned char I2C_Read_Byte(struct lt7911d *lt7911d, unsigned char reg)  in I2C_Read_Byte()  argument
56 	ret = regmap_read(lt7911d->regmap, reg, &val);  in I2C_Read_Byte()
65 static bool lt7911d_check_chip_id(struct lt7911d *lt7911d)  in lt7911d_check_chip_id()  argument
70 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_check_chip_id()
71 	I2C_Write_Byte(lt7911d, 0xEE, 0x01);  in lt7911d_check_chip_id()
73 	I2C_Write_Byte(lt7911d, 0xFF, 0xA0);  in lt7911d_check_chip_id()
74 	id_h = I2C_Read_Byte(lt7911d, 0x00);  in lt7911d_check_chip_id()
75 	id_l = I2C_Read_Byte(lt7911d, 0x01);  in lt7911d_check_chip_id()
81 		I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_check_chip_id()
82 		I2C_Write_Byte(lt7911d, 0xEE, 0x00);  in lt7911d_check_chip_id()
87 		I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_check_chip_id()
88 		I2C_Write_Byte(lt7911d, 0xEE, 0x00);  in lt7911d_check_chip_id()
93 static int lt7911d_check_fw_version(struct lt7911d *lt7911d)  in lt7911d_check_fw_version()  argument
97 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_check_fw_version()
98 	I2C_Write_Byte(lt7911d, 0xEE, 0x01);  in lt7911d_check_fw_version()
101 	I2C_Write_Byte(lt7911d, 0xFF, 0xD2);  in lt7911d_check_fw_version()
102 	fw = I2C_Read_Byte(lt7911d, 0x11);  in lt7911d_check_fw_version()
107 		I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_check_fw_version()
108 		I2C_Write_Byte(lt7911d, 0xEE, 0x00);  in lt7911d_check_fw_version()
112 		I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_check_fw_version()
113 		I2C_Write_Byte(lt7911d, 0xEE, 0x00);  in lt7911d_check_fw_version()
118 static void lt7911d_config_para(struct lt7911d *lt7911d)  in lt7911d_config_para()  argument
120 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_config_para()
121 	I2C_Write_Byte(lt7911d, 0xEE, 0x01);  in lt7911d_config_para()
122 	I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_config_para()
123 	I2C_Write_Byte(lt7911d, 0x5E, 0xC0);  in lt7911d_config_para()
124 	I2C_Write_Byte(lt7911d, 0x58, 0x00);  in lt7911d_config_para()
125 	I2C_Write_Byte(lt7911d, 0x59, 0x51);  in lt7911d_config_para()
126 	I2C_Write_Byte(lt7911d, 0x5A, 0x92);  in lt7911d_config_para()
127 	I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_config_para()
130 static void lt7911d_block_erase(struct lt7911d *lt7911d)  in lt7911d_block_erase()  argument
132 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_block_erase()
133 	I2C_Write_Byte(lt7911d, 0xEE, 0x01);  in lt7911d_block_erase()
134 	I2C_Write_Byte(lt7911d, 0x5A, 0x86);  in lt7911d_block_erase()
135 	I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_block_erase()
136 	I2C_Write_Byte(lt7911d, 0x5B, 0x00);  in lt7911d_block_erase()
137 	I2C_Write_Byte(lt7911d, 0x5C, 0x00);  in lt7911d_block_erase()
138 	I2C_Write_Byte(lt7911d, 0x5D, 0x00);  in lt7911d_block_erase()
139 	I2C_Write_Byte(lt7911d, 0x5A, 0x83);  in lt7911d_block_erase()
140 	I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_block_erase()
147 static void SaveHdcpKeyFromFlash(struct lt7911d *lt7911d)  in SaveHdcpKeyFromFlash()  argument
154 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in SaveHdcpKeyFromFlash()
155 	I2C_Write_Byte(lt7911d, 0xEE, 0x01);  in SaveHdcpKeyFromFlash()
156 	I2C_Write_Byte(lt7911d, 0xFF, 0x90);  in SaveHdcpKeyFromFlash()
157 	I2C_Write_Byte(lt7911d, 0x02, 0xdf);  in SaveHdcpKeyFromFlash()
158 	I2C_Write_Byte(lt7911d, 0x02, 0xff);  in SaveHdcpKeyFromFlash()
159 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in SaveHdcpKeyFromFlash()
160 	I2C_Write_Byte(lt7911d, 0x5a, 0x86);  in SaveHdcpKeyFromFlash()
161 	I2C_Write_Byte(lt7911d, 0x5a, 0x82);  in SaveHdcpKeyFromFlash()
174 		I2C_Write_Byte(lt7911d, 0x5E, 0x6f);  in SaveHdcpKeyFromFlash()
175 		I2C_Write_Byte(lt7911d, 0x5A, 0xA2);  in SaveHdcpKeyFromFlash()
176 		I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in SaveHdcpKeyFromFlash()
177 		I2C_Write_Byte(lt7911d, 0x5B, addr[0]);  in SaveHdcpKeyFromFlash()
178 		I2C_Write_Byte(lt7911d, 0x5C, addr[1]);  in SaveHdcpKeyFromFlash()
179 		I2C_Write_Byte(lt7911d, 0x5D, addr[2]);  in SaveHdcpKeyFromFlash()
180 		I2C_Write_Byte(lt7911d, 0x5A, 0x92);  in SaveHdcpKeyFromFlash()
181 		I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in SaveHdcpKeyFromFlash()
182 		I2C_Write_Byte(lt7911d, 0x58, 0x01);  in SaveHdcpKeyFromFlash()
188 			HdcpKey[i * 16 + j] = I2C_Read_Byte(lt7911d, 0x5F);  in SaveHdcpKeyFromFlash()
196 	I2C_Write_Byte(lt7911d, 0x5a, 0x8a);  in SaveHdcpKeyFromFlash()
197 	I2C_Write_Byte(lt7911d, 0x5a, 0x82);  in SaveHdcpKeyFromFlash()
200 static void lt7911d_write_firmware_to_flash(struct lt7911d *lt7911d)  in lt7911d_write_firmware_to_flash()  argument
207 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_write_firmware_to_flash()
208 	I2C_Write_Byte(lt7911d, 0xEE, 0x01);  in lt7911d_write_firmware_to_flash()
209 	I2C_Write_Byte(lt7911d, 0xFF, 0x90);  in lt7911d_write_firmware_to_flash()
210 	I2C_Write_Byte(lt7911d, 0x02, 0xdf);  in lt7911d_write_firmware_to_flash()
211 	I2C_Write_Byte(lt7911d, 0x02, 0xff);  in lt7911d_write_firmware_to_flash()
212 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_write_firmware_to_flash()
213 	I2C_Write_Byte(lt7911d, 0x5a, 0x86);  in lt7911d_write_firmware_to_flash()
214 	I2C_Write_Byte(lt7911d, 0x5a, 0x82);  in lt7911d_write_firmware_to_flash()
231 		I2C_Write_Byte(lt7911d, 0x5A, 0x86);  in lt7911d_write_firmware_to_flash()
232 		I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_write_firmware_to_flash()
234 		I2C_Write_Byte(lt7911d, 0x5E, 0xef);  in lt7911d_write_firmware_to_flash()
235 		I2C_Write_Byte(lt7911d, 0x5A, 0xA2);  in lt7911d_write_firmware_to_flash()
236 		I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_write_firmware_to_flash()
237 		I2C_Write_Byte(lt7911d, 0x58, 0x01);  in lt7911d_write_firmware_to_flash()
246 			I2C_Write_Byte(lt7911d, 0x59, FirmwareData[i*16 + j]);  in lt7911d_write_firmware_to_flash()
250 		I2C_Write_Byte(lt7911d, 0x5B, addr[0]);  in lt7911d_write_firmware_to_flash()
251 		I2C_Write_Byte(lt7911d, 0x5C, addr[1]);  in lt7911d_write_firmware_to_flash()
252 		I2C_Write_Byte(lt7911d, 0x5D, addr[2]);  in lt7911d_write_firmware_to_flash()
253 		I2C_Write_Byte(lt7911d, 0x5E, 0xE0);  in lt7911d_write_firmware_to_flash()
254 		I2C_Write_Byte(lt7911d, 0x5A, 0x92);  in lt7911d_write_firmware_to_flash()
255 		I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_write_firmware_to_flash()
263 	I2C_Write_Byte(lt7911d, 0x5a, 0x8a);  in lt7911d_write_firmware_to_flash()
264 	I2C_Write_Byte(lt7911d, 0x5a, 0x82);  in lt7911d_write_firmware_to_flash()
267 	I2C_Write_Byte(lt7911d, 0xFF, 0x90);  in lt7911d_write_firmware_to_flash()
268 	I2C_Write_Byte(lt7911d, 0x02, 0xDF);  in lt7911d_write_firmware_to_flash()
269 	I2C_Write_Byte(lt7911d, 0x02, 0xFF);  in lt7911d_write_firmware_to_flash()
273 static void lt7911d_write_hdcpkey_to_flash(struct lt7911d *lt7911d)  in lt7911d_write_hdcpkey_to_flash()  argument
280 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_write_hdcpkey_to_flash()
281 	I2C_Write_Byte(lt7911d, 0xEE, 0x01);  in lt7911d_write_hdcpkey_to_flash()
282 	I2C_Write_Byte(lt7911d, 0xFF, 0x90);  in lt7911d_write_hdcpkey_to_flash()
283 	I2C_Write_Byte(lt7911d, 0x02, 0xdf);  in lt7911d_write_hdcpkey_to_flash()
284 	I2C_Write_Byte(lt7911d, 0x02, 0xff);  in lt7911d_write_hdcpkey_to_flash()
285 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_write_hdcpkey_to_flash()
286 	I2C_Write_Byte(lt7911d, 0x5a, 0x86);  in lt7911d_write_hdcpkey_to_flash()
287 	I2C_Write_Byte(lt7911d, 0x5a, 0x82);  in lt7911d_write_hdcpkey_to_flash()
299 		I2C_Write_Byte(lt7911d, 0x5A, 0x86);  in lt7911d_write_hdcpkey_to_flash()
300 		I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_write_hdcpkey_to_flash()
302 		I2C_Write_Byte(lt7911d, 0x5E, 0xef);  in lt7911d_write_hdcpkey_to_flash()
303 		I2C_Write_Byte(lt7911d, 0x5A, 0xA2);  in lt7911d_write_hdcpkey_to_flash()
304 		I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_write_hdcpkey_to_flash()
305 		I2C_Write_Byte(lt7911d, 0x58, 0x01);  in lt7911d_write_hdcpkey_to_flash()
314 			I2C_Write_Byte(lt7911d, 0x59, HdcpKey[i*16 + j]);  in lt7911d_write_hdcpkey_to_flash()
318 			I2C_Write_Byte(lt7911d, 0x59, 0xFF);  in lt7911d_write_hdcpkey_to_flash()
319 			I2C_Write_Byte(lt7911d, 0x59, 0xFF);  in lt7911d_write_hdcpkey_to_flash()
323 		I2C_Write_Byte(lt7911d, 0x5B, addr[0]);  in lt7911d_write_hdcpkey_to_flash()
324 		I2C_Write_Byte(lt7911d, 0x5C, addr[1]);  in lt7911d_write_hdcpkey_to_flash()
325 		I2C_Write_Byte(lt7911d, 0x5D, addr[2]);  in lt7911d_write_hdcpkey_to_flash()
326 		I2C_Write_Byte(lt7911d, 0x5E, 0xE0);  in lt7911d_write_hdcpkey_to_flash()
327 		I2C_Write_Byte(lt7911d, 0x5A, 0x92);  in lt7911d_write_hdcpkey_to_flash()
328 		I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_write_hdcpkey_to_flash()
336 	I2C_Write_Byte(lt7911d, 0x5a, 0x8a);  in lt7911d_write_hdcpkey_to_flash()
337 	I2C_Write_Byte(lt7911d, 0x5a, 0x82);  in lt7911d_write_hdcpkey_to_flash()
340 	I2C_Write_Byte(lt7911d, 0xFF, 0x90);  in lt7911d_write_hdcpkey_to_flash()
341 	I2C_Write_Byte(lt7911d, 0x02, 0xDF);  in lt7911d_write_hdcpkey_to_flash()
342 	I2C_Write_Byte(lt7911d, 0x02, 0xFF);  in lt7911d_write_hdcpkey_to_flash()
346 static void lt7911d_read_firmware_from_flash(struct lt7911d *lt7911d)  in lt7911d_read_firmware_from_flash()  argument
355 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_read_firmware_from_flash()
356 	I2C_Write_Byte(lt7911d, 0xEE, 0x01);  in lt7911d_read_firmware_from_flash()
357 	I2C_Write_Byte(lt7911d, 0xFF, 0x90);  in lt7911d_read_firmware_from_flash()
358 	I2C_Write_Byte(lt7911d, 0x02, 0xdf);  in lt7911d_read_firmware_from_flash()
359 	I2C_Write_Byte(lt7911d, 0x02, 0xff);  in lt7911d_read_firmware_from_flash()
360 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_read_firmware_from_flash()
361 	I2C_Write_Byte(lt7911d, 0x5a, 0x86);  in lt7911d_read_firmware_from_flash()
362 	I2C_Write_Byte(lt7911d, 0x5a, 0x82);  in lt7911d_read_firmware_from_flash()
378 		I2C_Write_Byte(lt7911d, 0x5E, 0x6f);  in lt7911d_read_firmware_from_flash()
379 		I2C_Write_Byte(lt7911d, 0x5A, 0xA2);  in lt7911d_read_firmware_from_flash()
380 		I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_read_firmware_from_flash()
381 		I2C_Write_Byte(lt7911d, 0x5B, addr[0]);  in lt7911d_read_firmware_from_flash()
382 		I2C_Write_Byte(lt7911d, 0x5C, addr[1]);  in lt7911d_read_firmware_from_flash()
383 		I2C_Write_Byte(lt7911d, 0x5D, addr[2]);  in lt7911d_read_firmware_from_flash()
384 		I2C_Write_Byte(lt7911d, 0x5A, 0x92);  in lt7911d_read_firmware_from_flash()
385 		I2C_Write_Byte(lt7911d, 0x5A, 0x82);  in lt7911d_read_firmware_from_flash()
386 		I2C_Write_Byte(lt7911d, 0x58, 0x01);  in lt7911d_read_firmware_from_flash()
394 			ReadFirmware[i*16 + j] = I2C_Read_Byte(lt7911d, 0x5F);  in lt7911d_read_firmware_from_flash()
404 	I2C_Write_Byte(lt7911d, 0x5a, 0x8a);  in lt7911d_read_firmware_from_flash()
405 	I2C_Write_Byte(lt7911d, 0x5a, 0x82);  in lt7911d_read_firmware_from_flash()
408 static int lt7911_compare_firmware(struct lt7911d *lt7911d)  in lt7911_compare_firmware()  argument
422 static int lt7911d_firmware_upgrade(struct lt7911d *lt7911d)  in lt7911d_firmware_upgrade()  argument
426 	if (lt7911d_check_chip_id(lt7911d)) {  in lt7911d_firmware_upgrade()
427 		if (lt7911d_check_fw_version(lt7911d) == 0) {  in lt7911d_firmware_upgrade()
428 			lt7911d_config_para(lt7911d);  in lt7911d_firmware_upgrade()
429 			SaveHdcpKeyFromFlash(lt7911d);  in lt7911d_firmware_upgrade()
430 			lt7911d_block_erase(lt7911d);  in lt7911d_firmware_upgrade()
431 			lt7911d_write_firmware_to_flash(lt7911d);  in lt7911d_firmware_upgrade()
432 			lt7911d_write_hdcpkey_to_flash(lt7911d);  in lt7911d_firmware_upgrade()
433 			lt7911d_read_firmware_from_flash(lt7911d);  in lt7911d_firmware_upgrade()
435 			if (!lt7911_compare_firmware(lt7911d)) {  in lt7911d_firmware_upgrade()
448 	I2C_Write_Byte(lt7911d, 0xFF, 0x80);  in lt7911d_firmware_upgrade()
449 	I2C_Write_Byte(lt7911d, 0xEE, 0x00);  in lt7911d_firmware_upgrade()
464 	struct lt7911d *lt7911d = container_of(self, struct lt7911d, fb_notif);  in lt7911d_fb_notifier_callback()  local
471 	if (lt7911d->fb_blank == fb_blank)  in lt7911d_fb_notifier_callback()
475 		if (lt7911d->reset_gpio) {  in lt7911d_fb_notifier_callback()
476 			gpiod_direction_output(lt7911d->reset_gpio, 1);  in lt7911d_fb_notifier_callback()
478 			gpiod_direction_output(lt7911d->reset_gpio, 0);  in lt7911d_fb_notifier_callback()
483 	lt7911d->fb_blank = fb_blank;  in lt7911d_fb_notifier_callback()
492 	struct lt7911d *lt7911d;  in lt7911d_i2c_probe()  local
495 	lt7911d = devm_kzalloc(dev, sizeof(*lt7911d), GFP_KERNEL);  in lt7911d_i2c_probe()
496 	if (!lt7911d)  in lt7911d_i2c_probe()
499 	lt7911d->dev = dev;  in lt7911d_i2c_probe()
500 	i2c_set_clientdata(client, lt7911d);  in lt7911d_i2c_probe()
502 	lt7911d->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);  in lt7911d_i2c_probe()
503 	if (IS_ERR(lt7911d->reset_gpio))  in lt7911d_i2c_probe()
504 		return dev_err_probe(dev, PTR_ERR(lt7911d->reset_gpio),  in lt7911d_i2c_probe()
507 	gpiod_set_consumer_name(lt7911d->reset_gpio, "lt7911d-reset");  in lt7911d_i2c_probe()
509 	lt7911d->enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW);  in lt7911d_i2c_probe()
510 	if (IS_ERR(lt7911d->enable_gpio))  in lt7911d_i2c_probe()
511 		return dev_err_probe(dev, PTR_ERR(lt7911d->enable_gpio),  in lt7911d_i2c_probe()
514 	lt7911d->regmap = devm_regmap_init_i2c(client, &lt7911d_regmap_config);  in lt7911d_i2c_probe()
515 	if (IS_ERR(lt7911d->regmap))  in lt7911d_i2c_probe()
516 		return dev_err_probe(dev, PTR_ERR(lt7911d->regmap),  in lt7911d_i2c_probe()
519 	lt7911d->fb_blank = FB_BLANK_UNBLANK;  in lt7911d_i2c_probe()
520 	lt7911d->fb_notif.notifier_call = lt7911d_fb_notifier_callback;  in lt7911d_i2c_probe()
521 	ret = fb_register_client(&lt7911d->fb_notif);  in lt7911d_i2c_probe()
526 		if (!lt7911d_firmware_upgrade(lt7911d))  in lt7911d_i2c_probe()
537 	struct lt7911d *lt7911d = i2c_get_clientdata(client);  in lt7911d_i2c_shutdown()  local
539 	gpiod_direction_output(lt7911d->reset_gpio, 1);  in lt7911d_i2c_shutdown()
545 	struct lt7911d *lt7911d = i2c_get_clientdata(client);  in lt7911d_i2c_remove()  local
547 	fb_unregister_client(&lt7911d->fb_notif);  in lt7911d_i2c_remove()