gpio: Bulk conversion to generic_handle_domain_irq()

Wherever possible, replace constructs that match either
generic_handle_irq(irq_find_mapping()) or
generic_handle_irq(irq_linear_revmap()) to a single call to
generic_handle_domain_irq().

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>

drivers/gpio/gpio-104-dio-48e.c

@@ -336,8 +336,8 @@ static irqreturn_t dio48e_irq_handler(int irq, void *dev_id)
 	unsigned long gpio;
 
 	for_each_set_bit(gpio, &irq_mask, 2)
-		generic_handle_irq(irq_find_mapping(chip->irq.domain,
-			19 + gpio*24));
+		generic_handle_domain_irq(chip->irq.domain,
+					  19 + gpio*24);
 
 	raw_spin_lock(&dio48egpio->lock);
 

drivers/gpio/gpio-104-idi-48.c

@@ -223,8 +223,8 @@ static irqreturn_t idi_48_irq_handler(int irq, void *dev_id)
 		for_each_set_bit(bit_num, &irq_mask, 8) {
 			gpio = bit_num + boundary * 8;
 
-			generic_handle_irq(irq_find_mapping(chip->irq.domain,
-				gpio));
+			generic_handle_domain_irq(chip->irq.domain,
+						  gpio);
 		}
 	}
 

drivers/gpio/gpio-104-idio-16.c

@@ -208,7 +208,7 @@ static irqreturn_t idio_16_irq_handler(int irq, void *dev_id)
 	int gpio;
 
 	for_each_set_bit(gpio, &idio16gpio->irq_mask, chip->ngpio)
-		generic_handle_irq(irq_find_mapping(chip->irq.domain, gpio));
+		generic_handle_domain_irq(chip->irq.domain, gpio);
 
 	raw_spin_lock(&idio16gpio->lock);
 

drivers/gpio/gpio-altera.c

@@ -201,9 +201,8 @@ static void altera_gpio_irq_edge_handler(struct irq_desc *desc)
 	      (readl(mm_gc->regs + ALTERA_GPIO_EDGE_CAP) &
 	      readl(mm_gc->regs + ALTERA_GPIO_IRQ_MASK)))) {
 		writel(status, mm_gc->regs + ALTERA_GPIO_EDGE_CAP);
-		for_each_set_bit(i, &status, mm_gc->gc.ngpio) {
-			generic_handle_irq(irq_find_mapping(irqdomain, i));
-		}
+		for_each_set_bit(i, &status, mm_gc->gc.ngpio)
+			generic_handle_domain_irq(irqdomain, i);
 	}
 
 	chained_irq_exit(chip, desc);
@@ -228,9 +227,9 @@ static void altera_gpio_irq_leveL_high_handler(struct irq_desc *desc)
 	status = readl(mm_gc->regs + ALTERA_GPIO_DATA);
 	status &= readl(mm_gc->regs + ALTERA_GPIO_IRQ_MASK);
 
-	for_each_set_bit(i, &status, mm_gc->gc.ngpio) {
-		generic_handle_irq(irq_find_mapping(irqdomain, i));
-	}
+	for_each_set_bit(i, &status, mm_gc->gc.ngpio)
+		generic_handle_domain_irq(irqdomain, i);
+
 	chained_irq_exit(chip, desc);
 }
 

drivers/gpio/gpio-aspeed-sgpio.c

@@ -392,7 +392,7 @@ static void aspeed_sgpio_irq_handler(struct irq_desc *desc)
 	struct gpio_chip *gc = irq_desc_get_handler_data(desc);
 	struct irq_chip *ic = irq_desc_get_chip(desc);
 	struct aspeed_sgpio *data = gpiochip_get_data(gc);
-	unsigned int i, p, girq;
+	unsigned int i, p;
 	unsigned long reg;
 
 	chained_irq_enter(ic, desc);
@@ -402,11 +402,8 @@ static void aspeed_sgpio_irq_handler(struct irq_desc *desc)
 
 		reg = ioread32(bank_reg(data, bank, reg_irq_status));
 
-		for_each_set_bit(p, &reg, 32) {
-			girq = irq_find_mapping(gc->irq.domain, i * 32 + p);
-			generic_handle_irq(girq);
-		}
-
+		for_each_set_bit(p, &reg, 32)
+			generic_handle_domain_irq(gc->irq.domain, i * 32 + p);
 	}
 
 	chained_irq_exit(ic, desc);

drivers/gpio/gpio-aspeed.c

@@ -661,7 +661,7 @@ static void aspeed_gpio_irq_handler(struct irq_desc *desc)
 	struct gpio_chip *gc = irq_desc_get_handler_data(desc);
 	struct irq_chip *ic = irq_desc_get_chip(desc);
 	struct aspeed_gpio *data = gpiochip_get_data(gc);
-	unsigned int i, p, girq, banks;
+	unsigned int i, p, banks;
 	unsigned long reg;
 	struct aspeed_gpio *gpio = gpiochip_get_data(gc);
 
@@ -673,11 +673,8 @@ static void aspeed_gpio_irq_handler(struct irq_desc *desc)
 
 		reg = ioread32(bank_reg(data, bank, reg_irq_status));
 
-		for_each_set_bit(p, &reg, 32) {
-			girq = irq_find_mapping(gc->irq.domain, i * 32 + p);
-			generic_handle_irq(girq);
-		}
-
+		for_each_set_bit(p, &reg, 32)
+			generic_handle_domain_irq(gc->irq.domain, i * 32 + p);
 	}
 
 	chained_irq_exit(ic, desc);

drivers/gpio/gpio-ath79.c

@@ -204,11 +204,8 @@ static void ath79_gpio_irq_handler(struct irq_desc *desc)
 
 	raw_spin_unlock_irqrestore(&ctrl->lock, flags);
 
-	if (pending) {
-		for_each_set_bit(irq, &pending, gc->ngpio)
-			generic_handle_irq(
-				irq_linear_revmap(gc->irq.domain, irq));
-	}
+	for_each_set_bit(irq, &pending, gc->ngpio)
+		generic_handle_domain_irq(gc->irq.domain, irq);
 
 	chained_irq_exit(irqchip, desc);
 }

drivers/gpio/gpio-bcm-kona.c

@@ -466,9 +466,6 @@ static void bcm_kona_gpio_irq_handler(struct irq_desc *desc)
 		    (~(readl(reg_base + GPIO_INT_MASK(bank_id)))))) {
 		for_each_set_bit(bit, &sta, 32) {
 			int hwirq = GPIO_PER_BANK * bank_id + bit;
-			int child_irq =
-				irq_find_mapping(bank->kona_gpio->irq_domain,
-						 hwirq);
 			/*
 			 * Clear interrupt before handler is called so we don't
 			 * miss any interrupt occurred during executing them.
@@ -476,7 +473,8 @@ static void bcm_kona_gpio_irq_handler(struct irq_desc *desc)
 			writel(readl(reg_base + GPIO_INT_STATUS(bank_id)) |
 			       BIT(bit), reg_base + GPIO_INT_STATUS(bank_id));
 			/* Invoke interrupt handler */
-			generic_handle_irq(child_irq);
+			generic_handle_domain_irq(bank->kona_gpio->irq_domain,
+						  hwirq);
 		}
 	}
 

drivers/gpio/gpio-brcmstb.c

@@ -277,15 +277,14 @@ static void brcmstb_gpio_irq_bank_handler(struct brcmstb_gpio_bank *bank)
 	unsigned long status;
 
 	while ((status = brcmstb_gpio_get_active_irqs(bank))) {
-		unsigned int irq, offset;
+		unsigned int offset;
 
 		for_each_set_bit(offset, &status, 32) {
 			if (offset >= bank->width)
 				dev_warn(&priv->pdev->dev,
 					 "IRQ for invalid GPIO (bank=%d, offset=%d)\n",
 					 bank->id, offset);
-			irq = irq_linear_revmap(domain, hwbase + offset);
-			generic_handle_irq(irq);
+			generic_handle_domain_irq(domain, hwbase + offset);
 		}
 	}
 }

drivers/gpio/gpio-cadence.c

@@ -133,7 +133,7 @@ static void cdns_gpio_irq_handler(struct irq_desc *desc)
 		~ioread32(cgpio->regs + CDNS_GPIO_IRQ_MASK);
 
 	for_each_set_bit(hwirq, &status, chip->ngpio)
-		generic_handle_irq(irq_find_mapping(chip->irq.domain, hwirq));
+		generic_handle_domain_irq(chip->irq.domain, hwirq);
 
 	chained_irq_exit(irqchip, desc);
 }

drivers/gpio/gpio-davinci.c

@@ -369,8 +369,7 @@ static void gpio_irq_handler(struct irq_desc *desc)
 			 */
 			hw_irq = (bank_num / 2) * 32 + bit;
 
-			generic_handle_irq(
-				irq_find_mapping(d->irq_domain, hw_irq));
+			generic_handle_domain_irq(d->irq_domain, hw_irq);
 		}
 	}
 	chained_irq_exit(irq_desc_get_chip(desc), desc);

drivers/gpio/gpio-dln2.c

@@ -395,7 +395,7 @@ static struct irq_chip dln2_gpio_irqchip = {
 static void dln2_gpio_event(struct platform_device *pdev, u16 echo,
 			    const void *data, int len)
 {
-	int pin, irq;
+	int pin, ret;
 
 	const struct {
 		__le16 count;
@@ -416,24 +416,20 @@ static void dln2_gpio_event(struct platform_device *pdev, u16 echo,
 		return;
 	}
 
-	irq = irq_find_mapping(dln2->gpio.irq.domain, pin);
-	if (!irq) {
-		dev_err(dln2->gpio.parent, "pin %d not mapped to IRQ\n", pin);
-		return;
-	}
-
 	switch (dln2->irq_type[pin]) {
 	case DLN2_GPIO_EVENT_CHANGE_RISING:
-		if (event->value)
-			generic_handle_irq(irq);
+		if (!event->value)
+			return;
 		break;
 	case DLN2_GPIO_EVENT_CHANGE_FALLING:
-		if (!event->value)
-			generic_handle_irq(irq);
+		if (event->value)
+			return;
 		break;
-	default:
-		generic_handle_irq(irq);
 	}
+
+	ret = generic_handle_domain_irq(dln2->gpio.irq.domain, pin);
+	if (unlikely(ret))
+		dev_err(dln2->gpio.parent, "pin %d not mapped to IRQ\n", pin);
 }
 
 static int dln2_gpio_probe(struct platform_device *pdev)

drivers/gpio/gpio-em.c

@@ -173,7 +173,7 @@ static irqreturn_t em_gio_irq_handler(int irq, void *dev_id)
 	while ((pending = em_gio_read(p, GIO_MST))) {
 		offset = __ffs(pending);
 		em_gio_write(p, GIO_IIR, BIT(offset));
-		generic_handle_irq(irq_find_mapping(p->irq_domain, offset));
+		generic_handle_domain_irq(p->irq_domain, offset);
 		irqs_handled++;
 	}
 

drivers/gpio/gpio-ep93xx.c

@@ -128,13 +128,13 @@ static void ep93xx_gpio_ab_irq_handler(struct irq_desc *desc)
 	 */
 	stat = readb(epg->base + EP93XX_GPIO_A_INT_STATUS);
 	for_each_set_bit(offset, &stat, 8)
-		generic_handle_irq(irq_find_mapping(epg->gc[0].gc.irq.domain,
-						    offset));
+		generic_handle_domain_irq(epg->gc[0].gc.irq.domain,
+					  offset);
 
 	stat = readb(epg->base + EP93XX_GPIO_B_INT_STATUS);
 	for_each_set_bit(offset, &stat, 8)
-		generic_handle_irq(irq_find_mapping(epg->gc[1].gc.irq.domain,
-						    offset));
+		generic_handle_domain_irq(epg->gc[1].gc.irq.domain,
+					  offset);
 
 	chained_irq_exit(irqchip, desc);
 }

drivers/gpio/gpio-ftgpio010.c

@@ -149,8 +149,7 @@ static void ftgpio_gpio_irq_handler(struct irq_desc *desc)
 	stat = readl(g->base + GPIO_INT_STAT_RAW);
 	if (stat)
 		for_each_set_bit(offset, &stat, gc->ngpio)
-			generic_handle_irq(irq_find_mapping(gc->irq.domain,
-							    offset));
+			generic_handle_domain_irq(gc->irq.domain, offset);
 
 	chained_irq_exit(irqchip, desc);
 }

drivers/gpio/gpio-hisi.c

@@ -186,8 +186,8 @@ static void hisi_gpio_irq_handler(struct irq_desc *desc)
 
 	chained_irq_enter(irq_c, desc);
 	for_each_set_bit(hwirq, &irq_msk, HISI_GPIO_LINE_NUM_MAX)
-		generic_handle_irq(irq_find_mapping(hisi_gpio->chip.irq.domain,
-						    hwirq));
+		generic_handle_domain_irq(hisi_gpio->chip.irq.domain,
+					  hwirq);
 	chained_irq_exit(irq_c, desc);
 }
 

drivers/gpio/gpio-hlwd.c

@@ -97,11 +97,8 @@ static void hlwd_gpio_irqhandler(struct irq_desc *desc)
 
 	chained_irq_enter(chip, desc);
 
-	for_each_set_bit(hwirq, &pending, 32) {
-		int irq = irq_find_mapping(hlwd->gpioc.irq.domain, hwirq);
-
-		generic_handle_irq(irq);
-	}
+	for_each_set_bit(hwirq, &pending, 32)
+		generic_handle_domain_irq(hlwd->gpioc.irq.domain, hwirq);
 
 	chained_irq_exit(chip, desc);
 }

drivers/gpio/gpio-merrifield.c

@@ -359,12 +359,8 @@ static void mrfld_irq_handler(struct irq_desc *desc)
 		/* Only interrupts that are enabled */
 		pending &= enabled;
 
-		for_each_set_bit(gpio, &pending, 32) {
-			unsigned int irq;
-
-			irq = irq_find_mapping(gc->irq.domain, base + gpio);
-			generic_handle_irq(irq);
-		}
+		for_each_set_bit(gpio, &pending, 32)
+			generic_handle_domain_irq(gc->irq.domain, base + gpio);
 	}
 
 	chained_irq_exit(irqchip, desc);

drivers/gpio/gpio-mpc8xxx.c

@@ -120,7 +120,7 @@ static irqreturn_t mpc8xxx_gpio_irq_cascade(int irq, void *data)
 	mask = gc->read_reg(mpc8xxx_gc->regs + GPIO_IER)
 		& gc->read_reg(mpc8xxx_gc->regs + GPIO_IMR);
 	for_each_set_bit(i, &mask, 32)
-		generic_handle_irq(irq_linear_revmap(mpc8xxx_gc->irq, 31 - i));
+		generic_handle_domain_irq(mpc8xxx_gc->irq, 31 - i);
 
 	return IRQ_HANDLED;
 }

drivers/gpio/gpio-mt7621.c

@@ -95,9 +95,7 @@ mediatek_gpio_irq_handler(int irq, void *data)
 	pending = mtk_gpio_r32(rg, GPIO_REG_STAT);
 
 	for_each_set_bit(bit, &pending, MTK_BANK_WIDTH) {
-		u32 map = irq_find_mapping(gc->irq.domain, bit);
-
-		generic_handle_irq(map);
+		generic_handle_domain_irq(gc->irq.domain, bit);
 		mtk_gpio_w32(rg, GPIO_REG_STAT, BIT(bit));
 		ret |= IRQ_HANDLED;
 	}