85 	struct lcd_olinuxino *lcd = to_lcd_olinuxino(panel);  in lcd_olinuxino_disable()  local
87 	if (!lcd->enabled)  in lcd_olinuxino_disable()
90 	backlight_disable(lcd->backlight);  in lcd_olinuxino_disable()
92 	lcd->enabled = false;  in lcd_olinuxino_disable()
99 	struct lcd_olinuxino *lcd = to_lcd_olinuxino(panel);  in lcd_olinuxino_unprepare()  local
101 	if (!lcd->prepared)  in lcd_olinuxino_unprepare()
104 	gpiod_set_value_cansleep(lcd->enable_gpio, 0);  in lcd_olinuxino_unprepare()
105 	regulator_disable(lcd->supply);  in lcd_olinuxino_unprepare()
107 	lcd->prepared = false;  in lcd_olinuxino_unprepare()
114 	struct lcd_olinuxino *lcd = to_lcd_olinuxino(panel);  in lcd_olinuxino_prepare()  local
117 	if (lcd->prepared)  in lcd_olinuxino_prepare()
120 	ret = regulator_enable(lcd->supply);  in lcd_olinuxino_prepare()
124 	gpiod_set_value_cansleep(lcd->enable_gpio, 1);  in lcd_olinuxino_prepare()
125 	lcd->prepared = true;  in lcd_olinuxino_prepare()
132 	struct lcd_olinuxino *lcd = to_lcd_olinuxino(panel);  in lcd_olinuxino_enable()  local
134 	if (lcd->enabled)  in lcd_olinuxino_enable()
137 	backlight_enable(lcd->backlight);  in lcd_olinuxino_enable()
139 	lcd->enabled = true;  in lcd_olinuxino_enable()
146 	struct lcd_olinuxino *lcd = to_lcd_olinuxino(panel);  in lcd_olinuxino_get_modes()  local
147 	struct drm_connector *connector = lcd->panel.connector;  in lcd_olinuxino_get_modes()
148 	struct lcd_olinuxino_info *lcd_info = &lcd->eeprom.info;  in lcd_olinuxino_get_modes()
149 	struct drm_device *drm = lcd->panel.drm;  in lcd_olinuxino_get_modes()
154 	for (i = 0; i < lcd->eeprom.num_modes; i++) {  in lcd_olinuxino_get_modes()
156 			   &lcd->eeprom.reserved[i * sizeof(*lcd_mode)];  in lcd_olinuxino_get_modes()
217 	struct lcd_olinuxino *lcd;  in lcd_olinuxino_probe()  local
225 	lcd = devm_kzalloc(dev, sizeof(*lcd), GFP_KERNEL);  in lcd_olinuxino_probe()
226 	if (!lcd)  in lcd_olinuxino_probe()
229 	i2c_set_clientdata(client, lcd);  in lcd_olinuxino_probe()
230 	lcd->dev = dev;  in lcd_olinuxino_probe()
231 	lcd->client = client;  in lcd_olinuxino_probe()
233 	mutex_init(&lcd->mutex);  in lcd_olinuxino_probe()
237 		mutex_lock(&lcd->mutex);  in lcd_olinuxino_probe()
241 						    (u8 *)&lcd->eeprom + i);  in lcd_olinuxino_probe()
242 		mutex_unlock(&lcd->mutex);  in lcd_olinuxino_probe()
250 	checksum = ~crc32(~0, (u8 *)&lcd->eeprom, 252);  in lcd_olinuxino_probe()
251 	if (checksum != lcd->eeprom.checksum) {  in lcd_olinuxino_probe()
257 	if (lcd->eeprom.header != LCD_OLINUXINO_HEADER_MAGIC) {  in lcd_olinuxino_probe()
263 		 lcd->eeprom.info.name,  in lcd_olinuxino_probe()
264 		 lcd->eeprom.revision,  in lcd_olinuxino_probe()
265 		 lcd->eeprom.serial);  in lcd_olinuxino_probe()
271 	if (lcd->eeprom.num_modes > 4) {  in lcd_olinuxino_probe()
273 		lcd->eeprom.num_modes = 4;  in lcd_olinuxino_probe()
276 	lcd->enabled = false;  in lcd_olinuxino_probe()
277 	lcd->prepared = false;  in lcd_olinuxino_probe()
279 	lcd->supply = devm_regulator_get(dev, "power");  in lcd_olinuxino_probe()
280 	if (IS_ERR(lcd->supply))  in lcd_olinuxino_probe()
281 		return PTR_ERR(lcd->supply);  in lcd_olinuxino_probe()
283 	lcd->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);  in lcd_olinuxino_probe()
284 	if (IS_ERR(lcd->enable_gpio))  in lcd_olinuxino_probe()
285 		return PTR_ERR(lcd->enable_gpio);  in lcd_olinuxino_probe()
287 	lcd->backlight = devm_of_find_backlight(dev);  in lcd_olinuxino_probe()
288 	if (IS_ERR(lcd->backlight))  in lcd_olinuxino_probe()
289 		return PTR_ERR(lcd->backlight);  in lcd_olinuxino_probe()
291 	drm_panel_init(&lcd->panel);  in lcd_olinuxino_probe()
292 	lcd->panel.dev = dev;  in lcd_olinuxino_probe()
293 	lcd->panel.funcs = &lcd_olinuxino_funcs;  in lcd_olinuxino_probe()
295 	return drm_panel_add(&lcd->panel);  in lcd_olinuxino_probe()