3  * CZ.NIC's Turris Omnia LEDs driver
13 #include "leds.h"
49 	struct omnia_led leds[];  member
56 	struct omnia_leds *leds = dev_get_drvdata(cdev->dev->parent);  in omnia_led_brightness_set_blocking()  local
61 	mutex_lock(&leds->lock);  in omnia_led_brightness_set_blocking()
75 	ret = i2c_smbus_write_byte_data(leds->client, CMD_LED_STATE, state);  in omnia_led_brightness_set_blocking()
77 		ret = i2c_master_send(leds->client, buf, 5);  in omnia_led_brightness_set_blocking()
79 	mutex_unlock(&leds->lock);  in omnia_led_brightness_set_blocking()
151  * can be used to control the intensity of all the LEDs at once, so that if they
163 	struct omnia_leds *leds = i2c_get_clientdata(client);  in brightness_show()  local
166 	mutex_lock(&leds->lock);  in brightness_show()
168 	mutex_unlock(&leds->lock);  in brightness_show()
180 	struct omnia_leds *leds = i2c_get_clientdata(client);  in brightness_store()  local
190 	mutex_lock(&leds->lock);  in brightness_store()
192 	mutex_unlock(&leds->lock);  in brightness_store()
212 	struct omnia_leds *leds;  in omnia_leds_probe()  local
218 		dev_err(dev, "LEDs are not defined in device tree!\n");  in omnia_leds_probe()
221 		dev_err(dev, "Too many LEDs defined in device tree!\n");  in omnia_leds_probe()
225 	leds = devm_kzalloc(dev, struct_size(leds, leds, count), GFP_KERNEL);  in omnia_leds_probe()
226 	if (!leds)  in omnia_leds_probe()
229 	leds->client = client;  in omnia_leds_probe()
230 	i2c_set_clientdata(client, leds);  in omnia_leds_probe()
232 	mutex_init(&leds->lock);  in omnia_leds_probe()
234 	led = &leds->leds[0];  in omnia_leds_probe()
255 	/* put all LEDs into default (HW triggered) mode */  in omnia_leds_remove()
259 	/* set all LEDs color to [255, 255, 255] */  in omnia_leds_remove()
272 	{ .compatible = "cznic,turris-omnia-leds", },
287 		.name	= "leds-turris-omnia",
295 MODULE_DESCRIPTION("CZ.NIC's Turris Omnia LEDs");