18 #include <linux/dma/ipu-dma.h>
25 static u32 ipu_read_reg(struct ipu *ipu, unsigned long reg)  in ipu_read_reg()  argument
27 	return __raw_readl(ipu->reg_ipu + reg);  in ipu_read_reg()
30 static void ipu_write_reg(struct ipu *ipu, u32 value, unsigned long reg)  in ipu_write_reg()  argument
32 	__raw_writel(value, ipu->reg_ipu + reg);  in ipu_write_reg()
37  * IPU IRQ chip driver
47 	struct ipu	*ipu;  member
76 	struct ipu		*ipu;  member
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()
114 	ipu_write_reg(bank->ipu, reg, bank->control);  in ipu_irq_unmask()
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()
137 	ipu_write_reg(bank->ipu, reg, bank->control);  in ipu_irq_mask()
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()
176 	ret = bank && ipu_read_reg(bank->ipu, bank->status) &  in ipu_irq_status()
184  * ipu_irq_map() - map an IPU interrupt source to an IRQ number
188  * The source parameter has to be explained further. On i.MX31 IPU has 137 IRQ
193  * and also provides forward compatibility with any future IPU implementations
206 		pr_err("IPU: Source %u already mapped to IRQ %u\n", source, map->irq);  in ipu_irq_map()
221 			pr_debug("IPU: mapped source %u to IRQ %u\n",  in ipu_irq_map()
230 		pr_err("IPU: couldn't map source %u: %d\n", source, ret);  in ipu_irq_map()
236  * ipu_irq_map() - map an IPU interrupt source to an IRQ number
251 			pr_debug("IPU: unmapped source %u from IRQ %u\n",  in ipu_irq_unmap()
268 /* Chained IRQ handler for IPU function and error interrupt */
271 	struct ipu *ipu = irq_desc_get_handler_data(desc);  in ipu_irq_handler()  local
279 		status = ipu_read_reg(ipu, bank->status);  in ipu_irq_handler()
285 		status &= ipu_read_reg(ipu, bank->control);  in ipu_irq_handler()
298 				pr_err("IPU: Interrupt on unmapped source %u bank %d\n",  in ipu_irq_handler()
317 int __init ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)  in ipu_irq_attach_irq()  argument
327 		irq_bank[i].ipu = ipu;  in ipu_irq_attach_irq()
339 		irq_map[i].ipu = ipu;  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()
355 void ipu_irq_detach_irq(struct ipu *ipu, struct platform_device *dev)  in ipu_irq_detach_irq()  argument
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()