3  * CZ.NIC's Turris Omnia LEDs driver
13 #include "leds.h"
41 	struct omnia_led leds[];  member
48 	struct omnia_leds *leds = dev_get_drvdata(cdev->dev->parent);  in omnia_led_brightness_set_blocking()  local
53 	mutex_lock(&leds->lock);  in omnia_led_brightness_set_blocking()
67 	ret = i2c_smbus_write_byte_data(leds->client, CMD_LED_STATE, state);  in omnia_led_brightness_set_blocking()
69 		ret = i2c_master_send(leds->client, buf, 5);  in omnia_led_brightness_set_blocking()
71 	mutex_unlock(&leds->lock);  in omnia_led_brightness_set_blocking()
146  * can be used to control the intensity of all the LEDs at once, so that if they
159 	struct omnia_leds *leds = i2c_get_clientdata(client);  in brightness_show()  local
162 	mutex_lock(&leds->lock);  in brightness_show()
164 	mutex_unlock(&leds->lock);  in brightness_show()
176 	struct omnia_leds *leds = i2c_get_clientdata(client);  in brightness_store()  local
186 	mutex_lock(&leds->lock);  in brightness_store()
189 	mutex_unlock(&leds->lock);  in brightness_store()
209 	struct omnia_leds *leds;  in omnia_leds_probe()  local
215 		dev_err(dev, "LEDs are not defined in device tree!\n");  in omnia_leds_probe()
218 		dev_err(dev, "Too many LEDs defined in device tree!\n");  in omnia_leds_probe()
222 	leds = devm_kzalloc(dev, struct_size(leds, leds, count), GFP_KERNEL);  in omnia_leds_probe()
223 	if (!leds)  in omnia_leds_probe()
226 	leds->client = client;  in omnia_leds_probe()
227 	i2c_set_clientdata(client, leds);  in omnia_leds_probe()
229 	mutex_init(&leds->lock);  in omnia_leds_probe()
231 	led = &leds->leds[0];  in omnia_leds_probe()
249 	/* put all LEDs into default (HW triggered) mode */  in omnia_leds_remove()
253 	/* set all LEDs color to [255, 255, 255] */  in omnia_leds_remove()
264 	{ .compatible = "cznic,turris-omnia-leds", },
279 		.name	= "leds-turris-omnia",
288 MODULE_DESCRIPTION("CZ.NIC's Turris Omnia LEDs");