3 // soc-ac97.c  --  ALSA SoC Audio Layer AC97 support
125 static int snd_soc_ac97_init_gpio(struct snd_ac97 *ac97,  in snd_soc_ac97_init_gpio()  argument
134 	ac97->gpio_priv = gpio_priv;  in snd_soc_ac97_init_gpio()
147 static void snd_soc_ac97_free_gpio(struct snd_ac97 *ac97)  in snd_soc_ac97_free_gpio()  argument
149 	gpiochip_remove(&ac97->gpio_priv->gpio_chip);  in snd_soc_ac97_free_gpio()
152 static int snd_soc_ac97_init_gpio(struct snd_ac97 *ac97,  in snd_soc_ac97_init_gpio()  argument
158 static void snd_soc_ac97_free_gpio(struct snd_ac97 *ac97)  in snd_soc_ac97_free_gpio()  argument
168  * it. The caller is responsible to either call device_add(&ac97->dev) to
169  * register the device, or to call put_device(&ac97->dev) to free the device.
175 	struct snd_ac97 *ac97;  in snd_soc_alloc_ac97_component()  local
177 	ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);  in snd_soc_alloc_ac97_component()
178 	if (ac97 == NULL)  in snd_soc_alloc_ac97_component()
181 	ac97->bus = &soc_ac97_bus;  in snd_soc_alloc_ac97_component()
182 	ac97->num = 0;  in snd_soc_alloc_ac97_component()
184 	ac97->dev.bus = &ac97_bus_type;  in snd_soc_alloc_ac97_component()
185 	ac97->dev.parent = component->card->dev;  in snd_soc_alloc_ac97_component()
186 	ac97->dev.release = soc_ac97_device_release;  in snd_soc_alloc_ac97_component()
188 	dev_set_name(&ac97->dev, "%d-%d:%s",  in snd_soc_alloc_ac97_component()
192 	device_initialize(&ac97->dev);  in snd_soc_alloc_ac97_component()
194 	return ac97;  in snd_soc_alloc_ac97_component()
199  * snd_soc_new_ac97_component - initailise AC97 device
204  * Initialises AC97 component resources for use by ad-hoc devices only.
215 	struct snd_ac97 *ac97;  in snd_soc_new_ac97_component()  local
218 	ac97 = snd_soc_alloc_ac97_component(component);  in snd_soc_new_ac97_component()
219 	if (IS_ERR(ac97))  in snd_soc_new_ac97_component()
220 		return ac97;  in snd_soc_new_ac97_component()
223 		ret = snd_ac97_reset(ac97, false, id, id_mask);  in snd_soc_new_ac97_component()
225 			dev_err(component->dev, "Failed to reset AC97 device: %d\n",  in snd_soc_new_ac97_component()
231 	ret = device_add(&ac97->dev);  in snd_soc_new_ac97_component()
235 	ret = snd_soc_ac97_init_gpio(ac97, component);  in snd_soc_new_ac97_component()
239 	return ac97;  in snd_soc_new_ac97_component()
242 	put_device(&ac97->dev);  in snd_soc_new_ac97_component()
248  * snd_soc_free_ac97_component - free AC97 component device
249  * @ac97: snd_ac97 device to be freed
251  * Frees AC97 component device resources.
253 void snd_soc_free_ac97_component(struct snd_ac97 *ac97)  in snd_soc_free_ac97_component()  argument
255 	snd_soc_ac97_free_gpio(ac97);  in snd_soc_free_ac97_component()
256 	device_del(&ac97->dev);  in snd_soc_free_ac97_component()
257 	ac97->bus = NULL;  in snd_soc_free_ac97_component()
258 	put_device(&ac97->dev);  in snd_soc_free_ac97_component()
264 static void snd_soc_ac97_warm_reset(struct snd_ac97 *ac97)  in snd_soc_ac97_warm_reset()  argument
280 static void snd_soc_ac97_reset(struct snd_ac97 *ac97)  in snd_soc_ac97_reset()  argument
311 	state = pinctrl_lookup_state(p, "ac97-reset");  in snd_soc_ac97_parse_pinctl()
313 		dev_err(dev, "Can't find pinctrl state ac97-reset\n");  in snd_soc_ac97_parse_pinctl()
318 	state = pinctrl_lookup_state(p, "ac97-warm-reset");  in snd_soc_ac97_parse_pinctl()
320 		dev_err(dev, "Can't find pinctrl state ac97-warm-reset\n");  in snd_soc_ac97_parse_pinctl()
325 	state = pinctrl_lookup_state(p, "ac97-running");  in snd_soc_ac97_parse_pinctl()
327 		dev_err(dev, "Can't find pinctrl state ac97-running\n");  in snd_soc_ac97_parse_pinctl()
332 	cfg->sync_gpio = devm_gpiod_get_index(dev, "ac97", 0, GPIOD_ASIS);  in snd_soc_ac97_parse_pinctl()
334 		return dev_err_probe(dev, PTR_ERR(cfg->sync_gpio), "Can't find ac97-sync gpio\n");  in snd_soc_ac97_parse_pinctl()
335 	gpiod_set_consumer_name(cfg->sync_gpio, "AC97 link sync");  in snd_soc_ac97_parse_pinctl()
337 	cfg->sdata_gpio = devm_gpiod_get_index(dev, "ac97", 1, GPIOD_ASIS);  in snd_soc_ac97_parse_pinctl()
339 		return dev_err_probe(dev, PTR_ERR(cfg->sdata_gpio), "Can't find ac97-sdata gpio\n");  in snd_soc_ac97_parse_pinctl()
340 	gpiod_set_consumer_name(cfg->sdata_gpio, "AC97 link sdata");  in snd_soc_ac97_parse_pinctl()
342 	cfg->reset_gpio = devm_gpiod_get_index(dev, "ac97", 2, GPIOD_ASIS);  in snd_soc_ac97_parse_pinctl()
344 		return dev_err_probe(dev, PTR_ERR(cfg->reset_gpio), "Can't find ac97-reset gpio\n");  in snd_soc_ac97_parse_pinctl()
345 	gpiod_set_consumer_name(cfg->reset_gpio, "AC97 link reset");  in snd_soc_ac97_parse_pinctl()
369  * snd_soc_set_ac97_ops_of_reset - Set ac97 ops with generic ac97 reset functions