18 #include <linux/dma/ipu-dma.h>
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()
75 	struct ipu_irq_bank	*bank;  member
99 	struct ipu_irq_bank *bank;  in ipu_irq_unmask()  local
105 	bank = map->bank;  in ipu_irq_unmask()
106 	if (!bank) {  in ipu_irq_unmask()
108 		pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);  in ipu_irq_unmask()
112 	reg = ipu_read_reg(bank->ipu, bank->control);  in ipu_irq_unmask()
113 	reg |= (1UL << (map->source & 31));  in ipu_irq_unmask()
114 	ipu_write_reg(bank->ipu, reg, bank->control);  in ipu_irq_unmask()
122 	struct ipu_irq_bank *bank;  in ipu_irq_mask()  local
128 	bank = map->bank;  in ipu_irq_mask()
129 	if (!bank) {  in ipu_irq_mask()
131 		pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);  in ipu_irq_mask()
135 	reg = ipu_read_reg(bank->ipu, bank->control);  in ipu_irq_mask()
136 	reg &= ~(1UL << (map->source & 31));  in ipu_irq_mask()
137 	ipu_write_reg(bank->ipu, reg, bank->control);  in ipu_irq_mask()
145 	struct ipu_irq_bank *bank;  in ipu_irq_ack()  local
150 	bank = map->bank;  in ipu_irq_ack()
151 	if (!bank) {  in ipu_irq_ack()
153 		pr_err("IPU: %s(%u) - unmapped!\n", __func__, d->irq);  in ipu_irq_ack()
157 	ipu_write_reg(bank->ipu, 1UL << (map->source & 31), bank->status);  in ipu_irq_ack()
162  * ipu_irq_status() - returns the current interrupt status of the specified IRQ.
170 	struct ipu_irq_bank *bank;  in ipu_irq_status()  local
175 	bank = map->bank;  in ipu_irq_status()
176 	ret = bank && ipu_read_reg(bank->ipu, bank->status) &  in ipu_irq_status()
177 		(1UL << (map->source & 31));  in ipu_irq_status()
184  * ipu_irq_map() - map an IPU interrupt source to an IRQ number
186  * @return:	mapped IRQ number or negative error code
189  * sources, they are broken down in 5 32-bit registers, like 32, 32, 24, 32, 17.
190  * However, the source argument of this function is not the sequence number of
192  * register has source number 96, and not 88. This makes calculations easier,
198 	int i, ret = -ENOMEM;  in ipu_irq_map()
206 		pr_err("IPU: Source %u already mapped to IRQ %u\n", source, map->irq);  in ipu_irq_map()
207 		ret = -EBUSY;  in ipu_irq_map()
217 			irq_map[i].bank = irq_bank + source / 32;  in ipu_irq_map()
236  * ipu_irq_map() - map an IPU interrupt source to an IRQ number
242 	int i, ret = -EINVAL;  in ipu_irq_unmap()
255 			irq_map[i].source = -EINVAL;  in ipu_irq_unmap()
256 			irq_map[i].bank = NULL;  in ipu_irq_unmap()
276 		struct ipu_irq_bank *bank = irq_bank + i;  in ipu_irq_handler()  local
279 		status = ipu_read_reg(ipu, bank->status);  in ipu_irq_handler()
282 		 * be acked by ->handle_irq() (handle_level_irq). However, we  in ipu_irq_handler()
285 		status &= ipu_read_reg(ipu, bank->control);  in ipu_irq_handler()
291 			line--;  in ipu_irq_handler()
298 				pr_err("IPU: Interrupt on unmapped source %u bank %d\n",  in ipu_irq_handler()
302 			irq = map->irq;  in ipu_irq_handler()
320 	int irq_base = irq_alloc_descs(-1, 0, CONFIG_MX3_IPU_IRQS,  in ipu_irq_attach_irq()
341 		irq_map[i].source = -EINVAL;  in ipu_irq_attach_irq()
346 	irq_set_chained_handler_and_data(ipu->irq_fn, ipu_irq_handler, ipu);  in ipu_irq_attach_irq()
348 	irq_set_chained_handler_and_data(ipu->irq_err, ipu_irq_handler, ipu);  in ipu_irq_attach_irq()
350 	ipu->irq_base = irq_base;  in ipu_irq_attach_irq()
359 	irq_base = ipu->irq_base;  in ipu_irq_detach_irq()
361 	irq_set_chained_handler_and_data(ipu->irq_fn, NULL, NULL);  in ipu_irq_detach_irq()
363 	irq_set_chained_handler_and_data(ipu->irq_err, NULL, NULL);  in ipu_irq_detach_irq()