fsl/qe/qe_ic.c

3  * arch/powerpc/sysdev/qe_lib/qe_ic.c
46 struct qe_ic {
235 static inline struct qe_ic *qe_ic_from_irq(unsigned int virq)
240 static inline struct qe_ic *qe_ic_from_irq_data(struct irq_data *d)
247 	struct qe_ic *qe_ic = qe_ic_from_irq_data(d);
254 	temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg);
255 	qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg,
263 	struct qe_ic *qe_ic = qe_ic_from_irq_data(d);
270 	temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg);
271 	qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg,
297 	/* Exact match, unless qe_ic node is NULL */
305 	struct qe_ic *qe_ic = h->host_data;
318 	chip = &qe_ic->hc_irq;
320 	irq_set_chip_data(virq, qe_ic);
335 static unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic)
339 	BUG_ON(qe_ic == NULL);
342 	irq = qe_ic_read(qe_ic->regs, QEIC_CIVEC) >> 26;
347 	return irq_linear_revmap(qe_ic->irqhost, irq);
351 static unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic)
355 	BUG_ON(qe_ic == NULL);
358 	irq = qe_ic_read(qe_ic->regs, QEIC_CHIVEC) >> 26;
363 	return irq_linear_revmap(qe_ic->irqhost, irq);
368 	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
369 	unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
381 	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
382 	unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
394 	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
398 	cascade_irq = qe_ic_get_high_irq(qe_ic);
400 		cascade_irq = qe_ic_get_low_irq(qe_ic);
413 	struct qe_ic *qe_ic;
423 	qe_ic = devm_kzalloc(dev, sizeof(*qe_ic), GFP_KERNEL);
424 	if (qe_ic == NULL)
427 	qe_ic->regs = devm_ioremap(dev, res->start, resource_size(res));
428 	if (qe_ic->regs == NULL) {
433 	qe_ic->hc_irq = qe_ic_irq_chip;
435 	qe_ic->virq_high = platform_get_irq(pdev, 0);
436 	qe_ic->virq_low = platform_get_irq(pdev, 1);
438 	if (qe_ic->virq_low <= 0)
441 	if (qe_ic->virq_high > 0 && qe_ic->virq_high != qe_ic->virq_low) {
449 	qe_ic->irqhost = irq_domain_add_linear(node, NR_QE_IC_INTS,
450 					       &qe_ic_host_ops, qe_ic);
451 	if (qe_ic->irqhost == NULL) {
456 	qe_ic_write(qe_ic->regs, QEIC_CICR, 0);
458 	irq_set_handler_data(qe_ic->virq_low, qe_ic);
459 	irq_set_chained_handler(qe_ic->virq_low, low_handler);
462 		irq_set_handler_data(qe_ic->virq_high, qe_ic);
463 		irq_set_chained_handler(qe_ic->virq_high, high_handler);