23  * Register read / write - shall be inlined by the compiler
27 	return __raw_readl(ipu->reg_ipu + reg);  in ipu_read_reg()
32 	__raw_writel(value, ipu->reg_ipu + reg);  in ipu_write_reg()
99 	struct ipu_irq_map *map = irq_data_get_irq_chip_data(d);  in ipu_irq_unmask()  local
106 	bank = map->bank;  in ipu_irq_unmask()
109 		pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);  in ipu_irq_unmask()
113 	reg = ipu_read_reg(bank->ipu, bank->control);  in ipu_irq_unmask()
114 	reg |= (1UL << (map->source & 31));  in ipu_irq_unmask()
115 	ipu_write_reg(bank->ipu, reg, bank->control);  in ipu_irq_unmask()
122 	struct ipu_irq_map *map = irq_data_get_irq_chip_data(d);  in ipu_irq_mask()  local
129 	bank = map->bank;  in ipu_irq_mask()
132 		pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);  in ipu_irq_mask()
136 	reg = ipu_read_reg(bank->ipu, bank->control);  in ipu_irq_mask()
137 	reg &= ~(1UL << (map->source & 31));  in ipu_irq_mask()
138 	ipu_write_reg(bank->ipu, reg, bank->control);  in ipu_irq_mask()
145 	struct ipu_irq_map *map = irq_data_get_irq_chip_data(d);  in ipu_irq_ack()  local
151 	bank = map->bank;  in ipu_irq_ack()
154 		pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);  in ipu_irq_ack()
158 	ipu_write_reg(bank->ipu, 1UL << (map->source & 31), bank->status);  in ipu_irq_ack()
163  * ipu_irq_status() - returns the current interrupt status of the specified IRQ.
164  * @irq:	interrupt line to get status for.
165  * @return:	true if the interrupt is pending/asserted or false if the
166  *		interrupt is not pending.
170 	struct ipu_irq_map *map = irq_get_chip_data(irq);  in ipu_irq_status()  local
176 	bank = map->bank;  in ipu_irq_status()
177 	ret = bank && ipu_read_reg(bank->ipu, bank->status) &  in ipu_irq_status()
178 		(1UL << (map->source & 31));  in ipu_irq_status()
185  * ipu_irq_map() - map an IPU interrupt source to an IRQ number
186  * @source:	interrupt source bit position (see below)
190  * sources, they are broken down in 5 32-bit registers, like 32, 32, 24, 32, 17.
192  * the possible IRQ, but rather its bit position. So, first interrupt in fourth
195  * with any interrupt bit assignments.
199 	int i, ret = -ENOMEM;  in ipu_irq_map()
200 	struct ipu_irq_map *map;  in ipu_irq_map()  local
205 	map = src2map(source);  in ipu_irq_map()
206 	if (map) {  in ipu_irq_map()
207 		pr_err("IPU: Source %u already mapped to IRQ %u\n", source, map->irq);  in ipu_irq_map()
208 		ret = -EBUSY;  in ipu_irq_map()
231 		pr_err("IPU: couldn't map source %u: %d\n", source, ret);  in ipu_irq_map()
237  * ipu_irq_map() - map an IPU interrupt source to an IRQ number
238  * @source:	interrupt source bit position (see ipu_irq_map())
243 	int i, ret = -EINVAL;  in ipu_irq_unmap()
256 			irq_map[i].source = -EINVAL;  in ipu_irq_unmap()
269 /* Chained IRQ handler for IPU error interrupt */
280 		status = ipu_read_reg(ipu, bank->status);  in ipu_irq_err()
283 		 * be acked by ->handle_irq() (handle_level_irq). However, we  in ipu_irq_err()
286 		status &= ipu_read_reg(ipu, bank->control);  in ipu_irq_err()
289 			struct ipu_irq_map *map;  in ipu_irq_err()  local
291 			line--;  in ipu_irq_err()
295 			map = src2map(32 * i + line);  in ipu_irq_err()
296 			if (map)  in ipu_irq_err()
297 				irq = map->irq;  in ipu_irq_err()
300 			if (!map) {  in ipu_irq_err()
301 				pr_err("IPU: Interrupt on unmapped source %u bank %d\n",  in ipu_irq_err()
310 /* Chained IRQ handler for IPU function interrupt */
321 		status = ipu_read_reg(ipu, bank->status);  in ipu_irq_fn()
323 		status &= ipu_read_reg(ipu, bank->control);  in ipu_irq_fn()
326 			struct ipu_irq_map *map;  in ipu_irq_fn()  local
328 			line--;  in ipu_irq_fn()
332 			map = src2map(32 * i + line);  in ipu_irq_fn()
333 			if (map)  in ipu_irq_fn()
334 				irq = map->irq;  in ipu_irq_fn()
337 			if (!map) {  in ipu_irq_fn()
338 				pr_err("IPU: Interrupt on unmapped source %u bank %d\n",  in ipu_irq_fn()
357 	struct ipu_platform_data *pdata = dev->dev.platform_data;  in ipu_irq_attach_irq()
360 	irq_base = pdata->irq_base;  in ipu_irq_attach_irq()
377 		irq_map[i].source = -EINVAL;  in ipu_irq_attach_irq()
384 	irq_set_handler_data(ipu->irq_fn, ipu);  in ipu_irq_attach_irq()
385 	irq_set_chained_handler(ipu->irq_fn, ipu_irq_fn);  in ipu_irq_attach_irq()
387 	irq_set_handler_data(ipu->irq_err, ipu);  in ipu_irq_attach_irq()
388 	irq_set_chained_handler(ipu->irq_err, ipu_irq_err);  in ipu_irq_attach_irq()
395 	struct ipu_platform_data *pdata = dev->dev.platform_data;  in ipu_irq_detach_irq()
398 	irq_base = pdata->irq_base;  in ipu_irq_detach_irq()
400 	irq_set_chained_handler(ipu->irq_fn, NULL);  in ipu_irq_detach_irq()
401 	irq_set_handler_data(ipu->irq_fn, NULL);  in ipu_irq_detach_irq()
403 	irq_set_chained_handler(ipu->irq_err, NULL);  in ipu_irq_detach_irq()
404 	irq_set_handler_data(ipu->irq_err, NULL);  in ipu_irq_detach_irq()