drivers/gpio/gpio-ws16c48.c

114 static int ws16c48_handle_pre_irq(void *const irq_drv_data) __acquires(&ws16c48gpio->lock)
116 	struct ws16c48_gpio *const ws16c48gpio = irq_drv_data;
119 	raw_spin_lock(&ws16c48gpio->lock);
124 static int ws16c48_handle_post_irq(void *const irq_drv_data) __releases(&ws16c48gpio->lock)
126 	struct ws16c48_gpio *const ws16c48gpio = irq_drv_data;
128 	raw_spin_unlock(&ws16c48gpio->lock);
136 	struct ws16c48_gpio *const ws16c48gpio = irq_drv_data;
140 	raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
143 	if (mask_buf == ws16c48gpio->irq_mask[index])
145 	ws16c48gpio->irq_mask[index] = mask_buf;
147 	ret = regmap_write(ws16c48gpio->map, WS16C48_PAGE_LOCK, ENAB_PAGE);
152 	ret = regmap_write(ws16c48gpio->map, WS16C48_ENAB + index, ~mask_buf);
156 	ret = regmap_write(ws16c48gpio->map, WS16C48_PAGE_LOCK, INT_ID_PAGE);
161 	raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
170 	struct ws16c48_gpio *const ws16c48gpio = irq_drv_data;
186 	raw_spin_lock_irqsave(&ws16c48gpio->lock, flags);
188 	ret = regmap_write(ws16c48gpio->map, WS16C48_PAGE_LOCK, POL_PAGE);
193 	ret = regmap_update_bits(ws16c48gpio->map, WS16C48_POL + idx, irq_data->mask, polarity);
197 	ret = regmap_write(ws16c48gpio->map, WS16C48_PAGE_LOCK, INT_ID_PAGE);
202 	raw_spin_unlock_irqrestore(&ws16c48gpio->lock, flags);
247 	struct ws16c48_gpio *ws16c48gpio;
255 	ws16c48gpio = devm_kzalloc(dev, sizeof(*ws16c48gpio), GFP_KERNEL);
256 	if (!ws16c48gpio)
269 	ws16c48gpio->map = devm_regmap_init_mmio(dev, regs, &ws16c48_regmap_config);
270 	if (IS_ERR(ws16c48gpio->map))
271 		return dev_err_probe(dev, PTR_ERR(ws16c48gpio->map),
289 	chip->irq_drv_data = ws16c48gpio;
291 	raw_spin_lock_init(&ws16c48gpio->lock);
294 	err = ws16c48_irq_init_hw(ws16c48gpio->map);
298 	err = devm_regmap_add_irq_chip(dev, ws16c48gpio->map, irq[id], 0, 0, chip, &chip_data);
303 	gpio_config.regmap = ws16c48gpio->map;