3  * LCD-OLinuXino support for panel driver
80 	struct lcd_olinuxino *lcd = to_lcd_olinuxino(panel);  in lcd_olinuxino_unprepare()  local
82 	gpiod_set_value_cansleep(lcd->enable_gpio, 0);  in lcd_olinuxino_unprepare()
83 	regulator_disable(lcd->supply);  in lcd_olinuxino_unprepare()
90 	struct lcd_olinuxino *lcd = to_lcd_olinuxino(panel);  in lcd_olinuxino_prepare()  local
93 	ret = regulator_enable(lcd->supply);  in lcd_olinuxino_prepare()
97 	gpiod_set_value_cansleep(lcd->enable_gpio, 1);  in lcd_olinuxino_prepare()
105 	struct lcd_olinuxino *lcd = to_lcd_olinuxino(panel);  in lcd_olinuxino_get_modes()  local
106 	struct lcd_olinuxino_info *lcd_info = &lcd->eeprom.info;  in lcd_olinuxino_get_modes()
111 	for (i = 0; i < lcd->eeprom.num_modes; i++) {  in lcd_olinuxino_get_modes()
113 			   &lcd->eeprom.reserved[i * sizeof(*lcd_mode)];  in lcd_olinuxino_get_modes()
170 	struct lcd_olinuxino *lcd;  in lcd_olinuxino_probe()  local
178 	lcd = devm_kzalloc(dev, sizeof(*lcd), GFP_KERNEL);  in lcd_olinuxino_probe()
179 	if (!lcd)  in lcd_olinuxino_probe()
182 	i2c_set_clientdata(client, lcd);  in lcd_olinuxino_probe()
183 	lcd->dev = dev;  in lcd_olinuxino_probe()
184 	lcd->client = client;  in lcd_olinuxino_probe()
186 	mutex_init(&lcd->mutex);  in lcd_olinuxino_probe()
190 		mutex_lock(&lcd->mutex);  in lcd_olinuxino_probe()
194 						    (u8 *)&lcd->eeprom + i);  in lcd_olinuxino_probe()
195 		mutex_unlock(&lcd->mutex);  in lcd_olinuxino_probe()
203 	checksum = ~crc32(~0, (u8 *)&lcd->eeprom, 252);  in lcd_olinuxino_probe()
204 	if (checksum != lcd->eeprom.checksum) {  in lcd_olinuxino_probe()
210 	if (lcd->eeprom.header != LCD_OLINUXINO_HEADER_MAGIC) {  in lcd_olinuxino_probe()
216 		 lcd->eeprom.info.name,  in lcd_olinuxino_probe()
217 		 lcd->eeprom.revision,  in lcd_olinuxino_probe()
218 		 lcd->eeprom.serial);  in lcd_olinuxino_probe()
224 	if (lcd->eeprom.num_modes > 4) {  in lcd_olinuxino_probe()
226 		lcd->eeprom.num_modes = 4;  in lcd_olinuxino_probe()
229 	lcd->supply = devm_regulator_get(dev, "power");  in lcd_olinuxino_probe()
230 	if (IS_ERR(lcd->supply))  in lcd_olinuxino_probe()
231 		return PTR_ERR(lcd->supply);  in lcd_olinuxino_probe()
233 	lcd->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);  in lcd_olinuxino_probe()
234 	if (IS_ERR(lcd->enable_gpio))  in lcd_olinuxino_probe()
235 		return PTR_ERR(lcd->enable_gpio);  in lcd_olinuxino_probe()
237 	drm_panel_init(&lcd->panel, dev, &lcd_olinuxino_funcs,  in lcd_olinuxino_probe()
240 	ret = drm_panel_of_backlight(&lcd->panel);  in lcd_olinuxino_probe()
244 	drm_panel_add(&lcd->panel);  in lcd_olinuxino_probe()
257 	{ .compatible = "olimex,lcd-olinuxino" },
274 MODULE_DESCRIPTION("LCD-OLinuXino driver");