gpio: Move irqdomain into struct gpio_irq_chip

In order to consolidate the multiple ways to associate an IRQ chip with
a GPIO chip, move more fields into the new struct gpio_irq_chip.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/gpio/driver.txt

@@ -254,7 +254,7 @@ GPIO irqchips usually fall in one of two categories:
 	static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
 		unsigned long wa_lock_flags;
 		raw_spin_lock_irqsave(&bank->wa_lock, wa_lock_flags);
-		generic_handle_irq(irq_find_mapping(bank->chip.irqdomain, bit));
+		generic_handle_irq(irq_find_mapping(bank->chip.irq.domain, bit));
 		raw_spin_unlock_irqrestore(&bank->wa_lock, wa_lock_flags);
 
 * GENERIC CHAINED GPIO irqchips: these are the same as "CHAINED GPIO irqchips",

drivers/bcma/driver_gpio.c

@@ -113,7 +113,7 @@ static irqreturn_t bcma_gpio_irq_handler(int irq, void *dev_id)
 		return IRQ_NONE;
 
 	for_each_set_bit(gpio, &irqs, gc->ngpio)
-		generic_handle_irq(irq_find_mapping(gc->irqdomain, gpio));
+		generic_handle_irq(irq_find_mapping(gc->irq.domain, gpio));
 	bcma_chipco_gpio_polarity(cc, irqs, val & irqs);
 
 	return IRQ_HANDLED;

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

@@ -326,7 +326,7 @@ 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->irqdomain,
+		generic_handle_irq(irq_find_mapping(chip->irq.domain,
 			19 + gpio*24));
 
 	raw_spin_lock(&dio48egpio->lock);

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

@@ -209,7 +209,7 @@ 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->irqdomain,
+			generic_handle_irq(irq_find_mapping(chip->irq.domain,
 				gpio));
 		}
 	}

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

@@ -199,7 +199,7 @@ 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->irqdomain, gpio));
+		generic_handle_irq(irq_find_mapping(chip->irq.domain, gpio));
 
 	raw_spin_lock(&idio16gpio->lock);
 

drivers/gpio/gpio-adnp.c

@@ -320,7 +320,7 @@ static irqreturn_t adnp_irq(int irq, void *data)
 
 		for_each_set_bit(bit, &pending, 8) {
 			unsigned int child_irq;
-			child_irq = irq_find_mapping(adnp->gpio.irqdomain,
+			child_irq = irq_find_mapping(adnp->gpio.irq.domain,
 						     base + bit);
 			handle_nested_irq(child_irq);
 		}

drivers/gpio/gpio-altera.c

@@ -211,7 +211,7 @@ static void altera_gpio_irq_edge_handler(struct irq_desc *desc)
 	altera_gc = gpiochip_get_data(irq_desc_get_handler_data(desc));
 	chip = irq_desc_get_chip(desc);
 	mm_gc = &altera_gc->mmchip;
-	irqdomain = altera_gc->mmchip.gc.irqdomain;
+	irqdomain = altera_gc->mmchip.gc.irq.domain;
 
 	chained_irq_enter(chip, desc);
 
@@ -239,7 +239,7 @@ static void altera_gpio_irq_leveL_high_handler(struct irq_desc *desc)
 	altera_gc = gpiochip_get_data(irq_desc_get_handler_data(desc));
 	chip = irq_desc_get_chip(desc);
 	mm_gc = &altera_gc->mmchip;
-	irqdomain = altera_gc->mmchip.gc.irqdomain;
+	irqdomain = altera_gc->mmchip.gc.irq.domain;
 
 	chained_irq_enter(chip, desc);
 

drivers/gpio/gpio-aspeed.c

@@ -469,7 +469,7 @@ static void aspeed_gpio_irq_handler(struct irq_desc *desc)
 		reg = ioread32(bank_irq_reg(data, bank, GPIO_IRQ_STATUS));
 
 		for_each_set_bit(p, &reg, 32) {
-			girq = irq_find_mapping(gc->irqdomain, i * 32 + p);
+			girq = irq_find_mapping(gc->irq.domain, i * 32 + p);
 			generic_handle_irq(girq);
 		}
 

drivers/gpio/gpio-ath79.c

@@ -209,7 +209,7 @@ static void ath79_gpio_irq_handler(struct irq_desc *desc)
 	if (pending) {
 		for_each_set_bit(irq, &pending, gc->ngpio)
 			generic_handle_irq(
-				irq_linear_revmap(gc->irqdomain, irq));
+				irq_linear_revmap(gc->irq.domain, irq));
 	}
 
 	chained_irq_exit(irqchip, desc);

drivers/gpio/gpio-crystalcove.c

@@ -295,7 +295,7 @@ static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data)
 
 	for (gpio = 0; gpio < CRYSTALCOVE_GPIO_NUM; gpio++) {
 		if (pending & BIT(gpio)) {
-			virq = irq_find_mapping(cg->chip.irqdomain, gpio);
+			virq = irq_find_mapping(cg->chip.irq.domain, gpio);
 			handle_nested_irq(virq);
 		}
 	}

drivers/gpio/gpio-dln2.c

@@ -420,7 +420,7 @@ static void dln2_gpio_event(struct platform_device *pdev, u16 echo,
 		return;
 	}
 
-	irq = irq_find_mapping(dln2->gpio.irqdomain, pin);
+	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;

drivers/gpio/gpio-ftgpio010.c

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

drivers/gpio/gpio-ingenic.c

@@ -242,7 +242,7 @@ static void ingenic_gpio_irq_handler(struct irq_desc *desc)
 		flag = gpio_ingenic_read_reg(jzgc, JZ4740_GPIO_FLAG);
 
 	for_each_set_bit(i, &flag, 32)
-		generic_handle_irq(irq_linear_revmap(gc->irqdomain, i));
+		generic_handle_irq(irq_linear_revmap(gc->irq.domain, i));
 	chained_irq_exit(irq_chip, desc);
 }
 

drivers/gpio/gpio-intel-mid.c

@@ -295,7 +295,7 @@ static void intel_mid_irq_handler(struct irq_desc *desc)
 			mask = BIT(gpio);
 			/* Clear before handling so we can't lose an edge */
 			writel(mask, gedr);
-			generic_handle_irq(irq_find_mapping(gc->irqdomain,
+			generic_handle_irq(irq_find_mapping(gc->irq.domain,
 							    base + gpio));
 		}
 	}

drivers/gpio/gpio-lynxpoint.c

@@ -255,7 +255,7 @@ static void lp_gpio_irq_handler(struct irq_desc *desc)
 			mask = BIT(pin);
 			/* Clear before handling so we don't lose an edge */
 			outl(mask, reg);
-			irq = irq_find_mapping(lg->chip.irqdomain, base + pin);
+			irq = irq_find_mapping(lg->chip.irq.domain, base + pin);
 			generic_handle_irq(irq);
 		}
 	}

drivers/gpio/gpio-max732x.c

@@ -486,7 +486,7 @@ static irqreturn_t max732x_irq_handler(int irq, void *devid)
 
 	do {
 		level = __ffs(pending);
-		handle_nested_irq(irq_find_mapping(chip->gpio_chip.irqdomain,
+		handle_nested_irq(irq_find_mapping(chip->gpio_chip.irq.domain,
 						   level));
 
 		pending &= ~(1 << level);

drivers/gpio/gpio-merrifield.c

@@ -357,7 +357,7 @@ static void mrfld_irq_handler(struct irq_desc *desc)
 		for_each_set_bit(gpio, &pending, 32) {
 			unsigned int irq;
 
-			irq = irq_find_mapping(gc->irqdomain, base + gpio);
+			irq = irq_find_mapping(gc->irq.domain, base + gpio);
 			generic_handle_irq(irq);
 		}
 	}

drivers/gpio/gpio-omap.c

@@ -733,7 +733,7 @@ static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
 
 			raw_spin_lock_irqsave(&bank->wa_lock, wa_lock_flags);
 
-			generic_handle_irq(irq_find_mapping(bank->chip.irqdomain,
+			generic_handle_irq(irq_find_mapping(bank->chip.irq.domain,
 							    bit));
 
 			raw_spin_unlock_irqrestore(&bank->wa_lock,

drivers/gpio/gpio-pca953x.c

@@ -608,7 +608,7 @@ static irqreturn_t pca953x_irq_handler(int irq, void *devid)
 	for (i = 0; i < NBANK(chip); i++) {
 		while (pending[i]) {
 			level = __ffs(pending[i]);
-			handle_nested_irq(irq_find_mapping(chip->gpio_chip.irqdomain,
+			handle_nested_irq(irq_find_mapping(chip->gpio_chip.irq.domain,
 							level + (BANK_SZ * i)));
 			pending[i] &= ~(1 << level);
 			nhandled++;

drivers/gpio/gpio-pcf857x.c

@@ -196,7 +196,7 @@ static irqreturn_t pcf857x_irq(int irq, void *data)
 	mutex_unlock(&gpio->lock);
 
 	for_each_set_bit(i, &change, gpio->chip.ngpio)
-		handle_nested_irq(irq_find_mapping(gpio->chip.irqdomain, i));
+		handle_nested_irq(irq_find_mapping(gpio->chip.irq.domain, i));
 
 	return IRQ_HANDLED;
 }

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

@@ -240,7 +240,7 @@ static irqreturn_t idio_16_irq_handler(int irq, void *dev_id)
 		return IRQ_NONE;
 
 	for_each_set_bit(gpio, &idio16gpio->irq_mask, chip->ngpio)
-		generic_handle_irq(irq_find_mapping(chip->irqdomain, gpio));
+		generic_handle_irq(irq_find_mapping(chip->irq.domain, gpio));
 
 	raw_spin_lock(&idio16gpio->lock);
 

drivers/gpio/gpio-pl061.c

@@ -221,7 +221,7 @@ static void pl061_irq_handler(struct irq_desc *desc)
 	pending = readb(pl061->base + GPIOMIS);
 	if (pending) {
 		for_each_set_bit(offset, &pending, PL061_GPIO_NR)
-			generic_handle_irq(irq_find_mapping(gc->irqdomain,
+			generic_handle_irq(irq_find_mapping(gc->irq.domain,
 							    offset));
 	}
 

drivers/gpio/gpio-rcar.c

@@ -207,7 +207,7 @@ static irqreturn_t gpio_rcar_irq_handler(int irq, void *dev_id)
 			  gpio_rcar_read(p, INTMSK))) {
 		offset = __ffs(pending);
 		gpio_rcar_write(p, INTCLR, BIT(offset));
-		generic_handle_irq(irq_find_mapping(p->gpio_chip.irqdomain,
+		generic_handle_irq(irq_find_mapping(p->gpio_chip.irq.domain,
 						    offset));
 		irqs_handled++;
 	}

drivers/gpio/gpio-reg.c

@@ -103,8 +103,8 @@ static int gpio_reg_to_irq(struct gpio_chip *gc, unsigned offset)
 	struct gpio_reg *r = to_gpio_reg(gc);
 	int irq = r->irqs[offset];
 
-	if (irq >= 0 && r->irqdomain)
-		irq = irq_find_mapping(r->irqdomain, irq);
+	if (irq >= 0 && r->irq.domain)
+		irq = irq_find_mapping(r->irq.domain, irq);
 
 	return irq;
 }

drivers/gpio/gpio-stmpe.c

@@ -397,7 +397,7 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev)
 		while (stat) {
 			int bit = __ffs(stat);
 			int line = bank * 8 + bit;
-			int child_irq = irq_find_mapping(stmpe_gpio->chip.irqdomain,
+			int child_irq = irq_find_mapping(stmpe_gpio->chip.irq.domain,
 							 line);
 
 			handle_nested_irq(child_irq);

drivers/gpio/gpio-tc3589x.c

@@ -268,7 +268,7 @@ static irqreturn_t tc3589x_gpio_irq(int irq, void *dev)
 		while (stat) {
 			int bit = __ffs(stat);
 			int line = i * 8 + bit;
-			int irq = irq_find_mapping(tc3589x_gpio->chip.irqdomain,
+			int irq = irq_find_mapping(tc3589x_gpio->chip.irq.domain,
 						   line);
 
 			handle_nested_irq(irq);

drivers/gpio/gpio-vf610.c

@@ -160,7 +160,7 @@ static void vf610_gpio_irq_handler(struct irq_desc *desc)
 	for_each_set_bit(pin, &irq_isfr, VF610_GPIO_PER_PORT) {
 		vf610_gpio_writel(BIT(pin), port->base + PORT_ISFR);
 
-		generic_handle_irq(irq_find_mapping(port->gc.irqdomain, pin));
+		generic_handle_irq(irq_find_mapping(port->gc.irq.domain, pin));
 	}
 
 	chained_irq_exit(chip, desc);

drivers/gpio/gpio-wcove.c

@@ -350,7 +350,7 @@ static irqreturn_t wcove_gpio_irq_handler(int irq, void *data)
 			offset = (gpio > GROUP0_NR_IRQS) ? 1 : 0;
 			mask = (offset == 1) ? BIT(gpio - GROUP0_NR_IRQS) :
 								BIT(gpio);
-			virq = irq_find_mapping(wg->chip.irqdomain, gpio);
+			virq = irq_find_mapping(wg->chip.irq.domain, gpio);
 			handle_nested_irq(virq);
 			regmap_update_bits(wg->regmap, IRQ_STATUS_BASE + offset,
 								mask, mask);

drivers/gpio/gpio-ws16c48.c

@@ -332,7 +332,7 @@ static irqreturn_t ws16c48_irq_handler(int irq, void *dev_id)
 			int_id = inb(ws16c48gpio->base + 8 + port);
 			for_each_set_bit(gpio, &int_id, 8)
 				generic_handle_irq(irq_find_mapping(
-					chip->irqdomain, gpio + 8*port));
+					chip->irq.domain, gpio + 8*port));
 		}
 
 		int_pending = inb(ws16c48gpio->base + 6) & 0x7;

drivers/gpio/gpio-xgene-sb.c

@@ -287,7 +287,7 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev)
 	if (!priv->irq_domain)
 		return -ENODEV;
 
-	priv->gc.irqdomain = priv->irq_domain;
+	priv->gc.irq.domain = priv->irq_domain;
 
 	ret = devm_gpiochip_add_data(&pdev->dev, &priv->gc, priv);
 	if (ret) {

drivers/gpio/gpio-xlp.c

@@ -225,7 +225,7 @@ static void xlp_gpio_generic_handler(struct irq_desc *desc)
 
 		if (gpio_stat & BIT(gpio % XLP_GPIO_REGSZ))
 			generic_handle_irq(irq_find_mapping(
-						priv->chip.irqdomain, gpio));
+						priv->chip.irq.domain, gpio));
 	}
 	chained_irq_exit(irqchip, desc);
 }

drivers/gpio/gpio-zx.c

@@ -170,7 +170,7 @@ static void zx_irq_handler(struct irq_desc *desc)
 	writew_relaxed(pending, chip->base + ZX_GPIO_IC);
 	if (pending) {
 		for_each_set_bit(offset, &pending, ZX_GPIO_NR)
-			generic_handle_irq(irq_find_mapping(gc->irqdomain,
+			generic_handle_irq(irq_find_mapping(gc->irq.domain,
 							    offset));
 	}
 

drivers/gpio/gpio-zynq.c

@@ -562,7 +562,7 @@ static void zynq_gpio_handle_bank_irq(struct zynq_gpio *gpio,
 				      unsigned long pending)
 {
 	unsigned int bank_offset = gpio->p_data->bank_min[bank_num];
-	struct irq_domain *irqdomain = gpio->chip.irqdomain;
+	struct irq_domain *irqdomain = gpio->chip.irq.domain;
 	int offset;
 
 	if (!pending)

drivers/gpio/gpiolib.c

@@ -1550,7 +1550,7 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip,
 {
 	unsigned int offset;
 
-	if (!gpiochip->irqdomain) {
+	if (!gpiochip->irq.domain) {
 		chip_err(gpiochip, "called %s before setting up irqchip\n",
 			 __func__);
 		return;
@@ -1577,7 +1577,7 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip,
 	for (offset = 0; offset < gpiochip->ngpio; offset++) {
 		if (!gpiochip_irqchip_irq_valid(gpiochip, offset))
 			continue;
-		irq_set_parent(irq_find_mapping(gpiochip->irqdomain, offset),
+		irq_set_parent(irq_find_mapping(gpiochip->irq.domain, offset),
 			       parent_irq);
 	}
 }
@@ -1708,7 +1708,7 @@ static int gpiochip_to_irq(struct gpio_chip *chip, unsigned offset)
 {
 	if (!gpiochip_irqchip_irq_valid(chip, offset))
 		return -ENXIO;
-	return irq_create_mapping(chip->irqdomain, offset);
+	return irq_create_mapping(chip->irq.domain, offset);
 }
 
 /**
@@ -1719,7 +1719,7 @@ static int gpiochip_to_irq(struct gpio_chip *chip, unsigned offset)
  */
 static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip)
 {
-	unsigned int offset;
+	unsigned int offset, irq;
 
 	acpi_gpiochip_free_interrupts(gpiochip);
 
@@ -1729,14 +1729,16 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip)
 	}
 
 	/* Remove all IRQ mappings and delete the domain */
-	if (gpiochip->irqdomain) {
+	if (gpiochip->irq.domain) {
 		for (offset = 0; offset < gpiochip->ngpio; offset++) {
 			if (!gpiochip_irqchip_irq_valid(gpiochip, offset))
 				continue;
-			irq_dispose_mapping(
-				irq_find_mapping(gpiochip->irqdomain, offset));
+
+			irq = irq_find_mapping(gpiochip->irq.domain, offset);
+			irq_dispose_mapping(irq);
 		}
-		irq_domain_remove(gpiochip->irqdomain);
+
+		irq_domain_remove(gpiochip->irq.domain);
 	}
 
 	if (gpiochip->irq.chip) {
@@ -1822,10 +1824,10 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gpiochip,
 	gpiochip->irq_default_type = type;
 	gpiochip->to_irq = gpiochip_to_irq;
 	gpiochip->lock_key = lock_key;
-	gpiochip->irqdomain = irq_domain_add_simple(of_node,
+	gpiochip->irq.domain = irq_domain_add_simple(of_node,
 					gpiochip->ngpio, first_irq,
 					&gpiochip_domain_ops, gpiochip);
-	if (!gpiochip->irqdomain) {
+	if (!gpiochip->irq.domain) {
 		gpiochip->irq.chip = NULL;
 		return -EINVAL;
 	}

drivers/pinctrl/bcm/pinctrl-bcm2835.c

@@ -383,7 +383,7 @@ static void bcm2835_gpio_irq_handle_bank(struct bcm2835_pinctrl *pc,
 		/* FIXME: no clue why the code looks up the type here */
 		type = pc->irq_type[gpio];
 
-		generic_handle_irq(irq_linear_revmap(pc->gpio_chip.irqdomain,
+		generic_handle_irq(irq_linear_revmap(pc->gpio_chip.irq.irqdomain,
 						     gpio));
 	}
 }
@@ -665,7 +665,7 @@ static void bcm2835_pctl_pin_dbg_show(struct pinctrl_dev *pctldev,
 	enum bcm2835_fsel fsel = bcm2835_pinctrl_fsel_get(pc, offset);
 	const char *fname = bcm2835_functions[fsel];
 	int value = bcm2835_gpio_get_bit(pc, GPLEV0, offset);
-	int irq = irq_find_mapping(chip->irqdomain, offset);
+	int irq = irq_find_mapping(chip->irq.domain, offset);
 
 	seq_printf(s, "function %s in %s; irq %d (%s)",
 		fname, value ? "hi" : "lo",