4  * based on jz4740-battery.c
25 #include <linux/power/generic-adc-battery.h>
66 	schedule_delayed_work(&adc_bat->bat_work, msecs_to_jiffies(0));  in gab_ext_power_changed()
84  * should correspond one-to-one with enum chan_type.
94 	struct gab_platform_data *pdata = adc_bat->pdata;  in gab_charge_finished()
95 	bool ret = gpio_get_value(pdata->gpio_charge_finished);  in gab_charge_finished()
96 	bool inv = pdata->gpio_inverted;  in gab_charge_finished()
98 	if (!gpio_is_valid(pdata->gpio_charge_finished))  in gab_charge_finished()
105 	struct gab_platform_data *pdata = adc_bat->pdata;  in gab_get_status()
108 	bat_info = &pdata->battery_info;  in gab_get_status()
109 	if (adc_bat->level == bat_info->charge_full_design)  in gab_get_status()
111 	return adc_bat->status;  in gab_get_status()
137 	ret = iio_read_channel_processed(adc_bat->channel[chan_index],  in read_channel()
155 		dev_err(&psy->dev, "no battery infos ?!\n");  in gab_get_property()
156 		return -EINVAL;  in gab_get_property()
158 	pdata = adc_bat->pdata;  in gab_get_property()
159 	bat_info = &pdata->battery_info;  in gab_get_property()
163 		val->intval = gab_get_status(adc_bat);  in gab_get_property()
166 		val->intval = 0;  in gab_get_property()
169 		val->intval = pdata->cal_charge(result);  in gab_get_property()
177 		val->intval = result;  in gab_get_property()
180 		val->intval = bat_info->technology;  in gab_get_property()
183 		val->intval = bat_info->voltage_min_design;  in gab_get_property()
186 		val->intval = bat_info->voltage_max_design;  in gab_get_property()
189 		val->intval = bat_info->charge_full_design;  in gab_get_property()
192 		val->strval = bat_info->name;  in gab_get_property()
195 		return -EINVAL;  in gab_get_property()
210 	status = adc_bat->status;  in gab_work()
212 	is_plugged = power_supply_am_i_supplied(adc_bat->psy);  in gab_work()
213 	adc_bat->cable_plugged = is_plugged;  in gab_work()
216 		adc_bat->status =  POWER_SUPPLY_STATUS_DISCHARGING;  in gab_work()
218 		adc_bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING;  in gab_work()
220 		adc_bat->status = POWER_SUPPLY_STATUS_CHARGING;  in gab_work()
222 	if (status != adc_bat->status)  in gab_work()
223 		power_supply_changed(adc_bat->psy);  in gab_work()
229 	struct gab_platform_data *pdata = adc_bat->pdata;  in gab_charged()
232 	delay = pdata->jitter_delay ? pdata->jitter_delay : JITTER_DEFAULT;  in gab_charged()
233 	schedule_delayed_work(&adc_bat->bat_work,  in gab_charged()
243 	struct gab_platform_data *pdata = pdev->dev.platform_data;  in gab_probe()
250 	adc_bat = devm_kzalloc(&pdev->dev, sizeof(*adc_bat), GFP_KERNEL);  in gab_probe()
252 		dev_err(&pdev->dev, "failed to allocate memory\n");  in gab_probe()
253 		return -ENOMEM;  in gab_probe()
257 	psy_desc = &adc_bat->psy_desc;  in gab_probe()
258 	psy_desc->name = pdata->battery_info.name;  in gab_probe()
261 	adc_bat->cable_plugged = false;  in gab_probe()
262 	adc_bat->status = POWER_SUPPLY_STATUS_DISCHARGING;  in gab_probe()
263 	psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;  in gab_probe()
264 	psy_desc->get_property = gab_get_property;  in gab_probe()
265 	psy_desc->external_power_changed = gab_ext_power_changed;  in gab_probe()
266 	adc_bat->pdata = pdata;  in gab_probe()
277 		ret = -ENOMEM;  in gab_probe()
288 		adc_bat->channel[chan] = iio_channel_get(&pdev->dev,  in gab_probe()
290 		if (IS_ERR(adc_bat->channel[chan])) {  in gab_probe()
291 			ret = PTR_ERR(adc_bat->channel[chan]);  in gab_probe()
292 			adc_bat->channel[chan] = NULL;  in gab_probe()
309 		ret = -ENODEV;  in gab_probe()
319 	psy_desc->properties = properties;  in gab_probe()
320 	psy_desc->num_properties = index;  in gab_probe()
322 	adc_bat->psy = power_supply_register(&pdev->dev, psy_desc, &psy_cfg);  in gab_probe()
323 	if (IS_ERR(adc_bat->psy)) {  in gab_probe()
324 		ret = PTR_ERR(adc_bat->psy);  in gab_probe()
328 	INIT_DELAYED_WORK(&adc_bat->bat_work, gab_work);  in gab_probe()
330 	if (gpio_is_valid(pdata->gpio_charge_finished)) {  in gab_probe()
332 		ret = gpio_request(pdata->gpio_charge_finished, "charged");  in gab_probe()
336 		irq = gpio_to_irq(pdata->gpio_charge_finished);  in gab_probe()
347 	schedule_delayed_work(&adc_bat->bat_work,  in gab_probe()
352 	gpio_free(pdata->gpio_charge_finished);  in gab_probe()
354 	power_supply_unregister(adc_bat->psy);  in gab_probe()
357 		if (adc_bat->channel[chan])  in gab_probe()
358 			iio_channel_release(adc_bat->channel[chan]);  in gab_probe()
370 	struct gab_platform_data *pdata = adc_bat->pdata;  in gab_remove()
372 	power_supply_unregister(adc_bat->psy);  in gab_remove()
374 	if (gpio_is_valid(pdata->gpio_charge_finished)) {  in gab_remove()
375 		free_irq(gpio_to_irq(pdata->gpio_charge_finished), adc_bat);  in gab_remove()
376 		gpio_free(pdata->gpio_charge_finished);  in gab_remove()
380 		if (adc_bat->channel[chan])  in gab_remove()
381 			iio_channel_release(adc_bat->channel[chan]);  in gab_remove()
384 	kfree(adc_bat->psy_desc.properties);  in gab_remove()
385 	cancel_delayed_work_sync(&adc_bat->bat_work);  in gab_remove()
393 	cancel_delayed_work_sync(&adc_bat->bat_work);  in gab_suspend()
394 	adc_bat->status = POWER_SUPPLY_STATUS_UNKNOWN;  in gab_suspend()
401 	struct gab_platform_data *pdata = adc_bat->pdata;  in gab_resume()
404 	delay = pdata->jitter_delay ? pdata->jitter_delay : JITTER_DEFAULT;  in gab_resume()
407 	schedule_delayed_work(&adc_bat->bat_work,  in gab_resume()
416 		.name	= "generic-adc-battery",