drivers/mfd/max8998-irq.c

12 #include <linux/mfd/max8998-private.h>
95 irq_to_max8998_irq(struct max8998_dev *max8998, struct irq_data *data)
102 	struct max8998_dev *max8998 = irq_data_get_irq_chip_data(data);
104 	mutex_lock(&max8998->irqlock);
109 	struct max8998_dev *max8998 = irq_data_get_irq_chip_data(data);
112 	for (i = 0; i < ARRAY_SIZE(max8998->irq_masks_cur); i++) {
117 		if (max8998->irq_masks_cur[i] != max8998->irq_masks_cache[i]) {
118 			max8998->irq_masks_cache[i] = max8998->irq_masks_cur[i];
119 			max8998_write_reg(max8998->i2c, MAX8998_REG_IRQM1 + i,
120 					max8998->irq_masks_cur[i]);
124 	mutex_unlock(&max8998->irqlock);
129 	struct max8998_dev *max8998 = irq_data_get_irq_chip_data(data);
130 	struct max8998_irq_data *irq_data = irq_to_max8998_irq(max8998, data);
132 	max8998->irq_masks_cur[irq_data->reg - 1] &= ~irq_data->mask;
137 	struct max8998_dev *max8998 = irq_data_get_irq_chip_data(data);
138 	struct max8998_irq_data *irq_data = irq_to_max8998_irq(max8998, data);
140 	max8998->irq_masks_cur[irq_data->reg - 1] |= irq_data->mask;
144 	.name = "max8998",
153 	struct max8998_dev *max8998 = data;
158 	ret = max8998_bulk_read(max8998->i2c, MAX8998_REG_IRQ1,
161 		dev_err(max8998->dev, "Failed to read interrupt register: %d\n",
168 		irq_reg[i] &= ~max8998->irq_masks_cur[i];
173 			irq = irq_find_mapping(max8998->irq_domain, i);
175 				disable_irq_nosync(max8998->irq);
185 int max8998_irq_resume(struct max8998_dev *max8998)
187 	if (max8998->irq && max8998->irq_domain)
188 		max8998_irq_thread(max8998->irq, max8998);
195 	struct max8997_dev *max8998 = d->host_data;
197 	irq_set_chip_data(irq, max8998);
209 int max8998_irq_init(struct max8998_dev *max8998)
215 	if (!max8998->irq) {
216 		dev_warn(max8998->dev,
221 	mutex_init(&max8998->irqlock);
225 		max8998->irq_masks_cur[i] = 0xff;
226 		max8998->irq_masks_cache[i] = 0xff;
227 		max8998_write_reg(max8998->i2c, MAX8998_REG_IRQM1 + i, 0xff);
230 	max8998_write_reg(max8998->i2c, MAX8998_REG_STATUSM1, 0xff);
231 	max8998_write_reg(max8998->i2c, MAX8998_REG_STATUSM2, 0xff);
234 			max8998->irq_base, &max8998_irq_domain_ops, max8998);
236 		dev_err(max8998->dev, "could not create irq domain\n");
239 	max8998->irq_domain = domain;
241 	ret = request_threaded_irq(max8998->irq, NULL, max8998_irq_thread,
243 				   "max8998-irq", max8998);
245 		dev_err(max8998->dev, "Failed to request IRQ %d: %d\n",
246 			max8998->irq, ret);
250 	if (!max8998->ono)
253 	ret = request_threaded_irq(max8998->ono, NULL, max8998_irq_thread,
255 				   IRQF_ONESHOT, "max8998-ono", max8998);
257 		dev_err(max8998->dev, "Failed to request IRQ %d: %d\n",
258 			max8998->ono, ret);
263 void max8998_irq_exit(struct max8998_dev *max8998)
265 	if (max8998->ono)
266 		free_irq(max8998->ono, max8998);
268 	if (max8998->irq)
269 		free_irq(max8998->irq, max8998);