From: Magnus Damm <[email protected]> Cache IRQ in domain_irq variable instead of making use of irq_find_mapping(). While at it rename the irq variable to requested_irq.
Signed-off-by: Magnus Damm <[email protected]> --- Thanks to Thomas Gleixner for this suggestion. drivers/irqchip/irq-renesas-intc-irqpin.c | 30 +++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) --- 0003/drivers/irqchip/irq-renesas-intc-irqpin.c +++ work/drivers/irqchip/irq-renesas-intc-irqpin.c 2013-02-26 19:29:56.000000000 +0900 @@ -61,7 +61,8 @@ struct intc_irqpin_iomem { struct intc_irqpin_irq { int hw_irq; - int irq; + int requested_irq; + int domain_irq; struct intc_irqpin_priv *p; }; @@ -171,8 +172,7 @@ static int intc_irqpin_set_sense(struct static void intc_irqpin_dbg(struct intc_irqpin_irq *i, char *str) { dev_dbg(&i->p->pdev->dev, "%s (%d:%d:%d)\n", - str, i->irq, i->hw_irq, - irq_find_mapping(i->p->irq_domain, i->hw_irq)); + str, i->requested_irq, i->hw_irq, i->domain_irq); } static void intc_irqpin_irq_enable(struct irq_data *d) @@ -196,7 +196,7 @@ static void intc_irqpin_irq_disable(stru static void intc_irqpin_irq_enable_force(struct irq_data *d) { struct intc_irqpin_priv *p = irq_data_get_irq_chip_data(d); - int irq = p->irq[irqd_to_hwirq(d)].irq; + int irq = p->irq[irqd_to_hwirq(d)].requested_irq; intc_irqpin_irq_enable(d); irq_get_chip(irq)->irq_unmask(irq_get_irq_data(irq)); @@ -205,7 +205,7 @@ static void intc_irqpin_irq_enable_force static void intc_irqpin_irq_disable_force(struct irq_data *d) { struct intc_irqpin_priv *p = irq_data_get_irq_chip_data(d); - int irq = p->irq[irqd_to_hwirq(d)].irq; + int irq = p->irq[irqd_to_hwirq(d)].requested_irq; irq_get_chip(irq)->irq_mask(irq_get_irq_data(irq)); intc_irqpin_irq_disable(d); @@ -246,7 +246,7 @@ static irqreturn_t intc_irqpin_irq_handl if (intc_irqpin_read(p, INTC_IRQPIN_REG_SOURCE) & bit) { intc_irqpin_write(p, INTC_IRQPIN_REG_SOURCE, ~bit); intc_irqpin_dbg(i, "demux2"); - generic_handle_irq(irq_find_mapping(p->irq_domain, i->hw_irq)); + generic_handle_irq(i->domain_irq); return IRQ_HANDLED; } return IRQ_NONE; @@ -257,6 +257,9 @@ static int intc_irqpin_irq_domain_map(st { struct intc_irqpin_priv *p = h->host_data; + p->irq[hw].domain_irq = virq; + p->irq[hw].hw_irq = hw; + intc_irqpin_dbg(&p->irq[hw], "map"); irq_set_chip_data(virq, h->host_data); irq_set_chip_and_handler(virq, &p->irq_chip, handle_level_irq); @@ -314,9 +317,8 @@ static int intc_irqpin_probe(struct plat if (!irq) break; - p->irq[k].hw_irq = k; p->irq[k].p = p; - p->irq[k].irq = irq->start; + p->irq[k].requested_irq = irq->start; } p->number_of_irqs = k; @@ -389,7 +391,8 @@ static int intc_irqpin_probe(struct plat /* request and set priority on interrupts one by one */ for (k = 0; k < p->number_of_irqs; k++) { - if (request_irq(p->irq[k].irq, intc_irqpin_irq_handler, + if (request_irq(p->irq[k].requested_irq, + intc_irqpin_irq_handler, 0, name, &p->irq[k])) { dev_err(&pdev->dev, "failed to request low IRQ\n"); ret = -ENOENT; @@ -402,17 +405,16 @@ static int intc_irqpin_probe(struct plat /* warn in case of mismatch if irq base is specified */ if (p->config.irq_base) { - k = irq_find_mapping(p->irq_domain, 0); - if (p->config.irq_base != k) + if (p->config.irq_base != p->irq[0].domain_irq) dev_warn(&pdev->dev, "irq base mismatch (%d/%d)\n", - p->config.irq_base, k); + p->config.irq_base, p->irq[0].domain_irq); } return 0; err3: for (; k >= 0; k--) - free_irq(p->irq[k - 1].irq, &p->irq[k - 1]); + free_irq(p->irq[k - 1].requested_irq, &p->irq[k - 1]); irq_domain_remove(p->irq_domain); err2: @@ -430,7 +432,7 @@ static int intc_irqpin_remove(struct pla int k; for (k = 0; k < p->number_of_irqs; k++) - free_irq(p->irq[k].irq, &p->irq[k]); + free_irq(p->irq[k].requested_irq, &p->irq[k]); irq_domain_remove(p->irq_domain); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
