Merge branch irq/modular-irqchips into irq/irqchip-next

* irq/modular-irqchips:
  : .
  : Update a set of irqchip drivers to be build as modules.
  :
  : This includes an Amlogic and multiple Broadcom drivers, triggering
  : a cascade of other changes (MIPS arch code, symbols being exported,
  : config changes)
  : .
  irqchip: Fix kernel-doc parameter typo for IRQCHIP_DECLARE
  ARM: bcm: Removed forced select of interrupt controllers
  arm64: broadcom: Removed forced select of interrupt controllers
  irqchip/irq-bcm7120-l2: Switch to IRQCHIP_PLATFORM_DRIVER
  genirq: Export irq_gc_noop()
  irqchip/irq-brcmstb-l2: Switch to IRQCHIP_PLATFORM_DRIVER
  genirq: Export irq_gc_{unmask_enable,mask_disable}_reg
  irqchip/irq-bcm7038-l1: Switch to IRQCHIP_PLATFORM_DRIVER
  irqchip/irq-bcm7038-l1: Restrict affinity setting to MIPS
  irqchip/irq-bcm7038-l1: Gate use of CPU logical map to MIPS
  irqchip/irq-bcm7038-l1: Use irq_get_irq_data()
  irqchip/irq-bcm7038-l1: Remove .irq_cpu_offline()
  MIPS: BMIPS: Remove use of irq_cpu_offline
  arm64: meson: remove MESON_IRQ_GPIO selection
  irqchip/meson-gpio: Make it possible to build as a module
  irqchip: Provide stronger type checking for IRQCHIP_MATCH/IRQCHIP_DECLARE

Signed-off-by: Marc Zyngier <maz@kernel.org>

5 files changed, 56 insertions, 60 deletions

diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index aca7b595c4c7..b2f483b7458d 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -115,18 +115,24 @@ config BCM6345_L1_IRQ
 	select GENERIC_IRQ_EFFECTIVE_AFF_MASK
 
 config BCM7038_L1_IRQ
-	bool
+	tristate "Broadcom STB 7038-style L1/L2 interrupt controller driver"
+	depends on ARCH_BRCMSTB || BMIPS_GENERIC
+	default ARCH_BRCMSTB || BMIPS_GENERIC
 	select GENERIC_IRQ_CHIP
 	select IRQ_DOMAIN
 	select GENERIC_IRQ_EFFECTIVE_AFF_MASK
 
 config BCM7120_L2_IRQ
-	bool
+	tristate "Broadcom STB 7120-style L2 interrupt controller driver"
+	depends on ARCH_BRCMSTB || BMIPS_GENERIC
+	default ARCH_BRCMSTB || BMIPS_GENERIC
 	select GENERIC_IRQ_CHIP
 	select IRQ_DOMAIN
 
 config BRCMSTB_L2_IRQ
-	bool
+	tristate "Broadcom STB generic L2 interrupt controller driver"
+	depends on ARCH_BCM2835 || ARCH_BRCMSTB || BMIPS_GENERIC
+	default ARCH_BCM2835 || ARCH_BRCMSTB || BMIPS_GENERIC
 	select GENERIC_IRQ_CHIP
 	select IRQ_DOMAIN
 
@@ -400,8 +406,9 @@ config IRQ_UNIPHIER_AIDET
 	  Support for the UniPhier AIDET (ARM Interrupt Detector).
 
 config MESON_IRQ_GPIO
-       bool "Meson GPIO Interrupt Multiplexer"
-       depends on ARCH_MESON
+       tristate "Meson GPIO Interrupt Multiplexer"
+       depends on ARCH_MESON || COMPILE_TEST
+       default ARCH_MESON
        select IRQ_DOMAIN_HIERARCHY
        help
          Support Meson SoC Family GPIO Interrupt Multiplexer
diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c
index a035c385ca7a..a62b96237b82 100644
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -28,9 +28,6 @@
 #include <linux/irqchip.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/syscore_ops.h>
-#ifdef CONFIG_ARM
-#include <asm/smp_plat.h>
-#endif
 
 #define IRQS_PER_WORD		32
 #define REG_BYTES_PER_IRQ_WORD	(sizeof(u32) * 4)
@@ -127,7 +124,7 @@ static void bcm7038_l1_irq_handle(struct irq_desc *desc)
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int idx;
 
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && defined(CONFIG_MIPS)
 	cpu = intc->cpus[cpu_logical_map(smp_processor_id())];
 #else
 	cpu = intc->cpus[0];
@@ -194,6 +191,7 @@ static void bcm7038_l1_mask(struct irq_data *d)
 	raw_spin_unlock_irqrestore(&intc->lock, flags);
 }
 
+#if defined(CONFIG_MIPS) && defined(CONFIG_SMP)
 static int bcm7038_l1_set_affinity(struct irq_data *d,
 				   const struct cpumask *dest,
 				   bool force)
@@ -220,32 +218,6 @@ static int bcm7038_l1_set_affinity(struct irq_data *d,
 
 	return 0;
 }
-
-#ifdef CONFIG_SMP
-static void bcm7038_l1_cpu_offline(struct irq_data *d)
-{
-	struct cpumask *mask = irq_data_get_affinity_mask(d);
-	int cpu = smp_processor_id();
-	cpumask_t new_affinity;
-
-	/* This CPU was not on the affinity mask */
-	if (!cpumask_test_cpu(cpu, mask))
-		return;
-
-	if (cpumask_weight(mask) > 1) {
-		/*
-		 * Multiple CPU affinity, remove this CPU from the affinity
-		 * mask
-		 */
-		cpumask_copy(&new_affinity, mask);
-		cpumask_clear_cpu(cpu, &new_affinity);
-	} else {
-		/* Only CPU, put on the lowest online CPU */
-		cpumask_clear(&new_affinity);
-		cpumask_set_cpu(cpumask_first(cpu_online_mask), &new_affinity);
-	}
-	irq_set_affinity_locked(d, &new_affinity, false);
-}
 #endif
 
 static int __init bcm7038_l1_init_one(struct device_node *dn,
@@ -328,7 +300,7 @@ static int bcm7038_l1_suspend(void)
 	u32 val;
 
 	/* Wakeup interrupt should only come from the boot cpu */
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && defined(CONFIG_MIPS)
 	boot_cpu = cpu_logical_map(0);
 #else
 	boot_cpu = 0;
@@ -352,7 +324,7 @@ static void bcm7038_l1_resume(void)
 	struct bcm7038_l1_chip *intc;
 	int boot_cpu, word;
 
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && defined(CONFIG_MIPS)
 	boot_cpu = cpu_logical_map(0);
 #else
 	boot_cpu = 0;
@@ -395,9 +367,8 @@ static struct irq_chip bcm7038_l1_irq_chip = {
 	.name			= "bcm7038-l1",
 	.irq_mask		= bcm7038_l1_mask,
 	.irq_unmask		= bcm7038_l1_unmask,
+#if defined(CONFIG_SMP) && defined(CONFIG_MIPS)
 	.irq_set_affinity	= bcm7038_l1_set_affinity,
-#ifdef CONFIG_SMP
-	.irq_cpu_offline	= bcm7038_l1_cpu_offline,
 #endif
 #ifdef CONFIG_PM_SLEEP
 	.irq_set_wake		= bcm7038_l1_set_wake,
@@ -416,7 +387,7 @@ static int bcm7038_l1_map(struct irq_domain *d, unsigned int virq,
 
 	irq_set_chip_and_handler(virq, &bcm7038_l1_irq_chip, handle_level_irq);
 	irq_set_chip_data(virq, d->host_data);
-	irqd_set_single_target(irq_desc_get_irq_data(irq_to_desc(virq)));
+	irqd_set_single_target(irq_get_irq_data(virq));
 	return 0;
 }
 
@@ -484,4 +455,8 @@ out_free:
 	return ret;
 }
 
-IRQCHIP_DECLARE(bcm7038_l1, "brcm,bcm7038-l1-intc", bcm7038_l1_of_init);
+IRQCHIP_PLATFORM_DRIVER_BEGIN(bcm7038_l1)
+IRQCHIP_MATCH("brcm,bcm7038-l1-intc", bcm7038_l1_of_init)
+IRQCHIP_PLATFORM_DRIVER_END(bcm7038_l1)
+MODULE_DESCRIPTION("Broadcom STB 7038-style L1/L2 interrupt controller");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/irqchip/irq-bcm7120-l2.c b/drivers/irqchip/irq-bcm7120-l2.c
index f23d7651ea84..d80e67a6aad2 100644
--- a/drivers/irqchip/irq-bcm7120-l2.c
+++ b/drivers/irqchip/irq-bcm7120-l2.c
@@ -220,6 +220,7 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
 {
 	unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
 	struct bcm7120_l2_intc_data *data;
+	struct platform_device *pdev;
 	struct irq_chip_generic *gc;
 	struct irq_chip_type *ct;
 	int ret = 0;
@@ -230,7 +231,13 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
 	if (!data)
 		return -ENOMEM;
 
-	data->num_parent_irqs = of_irq_count(dn);
+	pdev = of_find_device_by_node(dn);
+	if (!pdev) {
+		ret = -ENODEV;
+		goto out_free_data;
+	}
+
+	data->num_parent_irqs = platform_irq_count(pdev);
 	if (data->num_parent_irqs <= 0) {
 		pr_err("invalid number of parent interrupts\n");
 		ret = -ENOMEM;
@@ -329,6 +336,7 @@ out_unmap:
 		if (data->map_base[idx])
 			iounmap(data->map_base[idx]);
 	}
+out_free_data:
 	kfree(data);
 	return ret;
 }
@@ -347,8 +355,9 @@ static int __init bcm7120_l2_intc_probe_3380(struct device_node *dn,
 				     "BCM3380 L2");
 }
 
-IRQCHIP_DECLARE(bcm7120_l2_intc, "brcm,bcm7120-l2-intc",
-		bcm7120_l2_intc_probe_7120);
-
-IRQCHIP_DECLARE(bcm3380_l2_intc, "brcm,bcm3380-l2-intc",
-		bcm7120_l2_intc_probe_3380);
+IRQCHIP_PLATFORM_DRIVER_BEGIN(bcm7120_l2)
+IRQCHIP_MATCH("brcm,bcm7120-l2-intc", bcm7120_l2_intc_probe_7120)
+IRQCHIP_MATCH("brcm,bcm3380-l2-intc", bcm7120_l2_intc_probe_3380)
+IRQCHIP_PLATFORM_DRIVER_END(bcm7120_l2)
+MODULE_DESCRIPTION("Broadcom STB 7120-style L2 interrupt controller driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/irqchip/irq-brcmstb-l2.c b/drivers/irqchip/irq-brcmstb-l2.c
index 8e0911561f2d..e4efc08ac594 100644
--- a/drivers/irqchip/irq-brcmstb-l2.c
+++ b/drivers/irqchip/irq-brcmstb-l2.c
@@ -275,16 +275,18 @@ static int __init brcmstb_l2_edge_intc_of_init(struct device_node *np,
 {
 	return brcmstb_l2_intc_of_init(np, parent, &l2_edge_intc_init);
 }
-IRQCHIP_DECLARE(brcmstb_l2_intc, "brcm,l2-intc", brcmstb_l2_edge_intc_of_init);
-IRQCHIP_DECLARE(brcmstb_hif_spi_l2_intc, "brcm,hif-spi-l2-intc",
-		brcmstb_l2_edge_intc_of_init);
-IRQCHIP_DECLARE(brcmstb_upg_aux_aon_l2_intc, "brcm,upg-aux-aon-l2-intc",
-		brcmstb_l2_edge_intc_of_init);
 
 static int __init brcmstb_l2_lvl_intc_of_init(struct device_node *np,
 	struct device_node *parent)
 {
 	return brcmstb_l2_intc_of_init(np, parent, &l2_lvl_intc_init);
 }
-IRQCHIP_DECLARE(bcm7271_l2_intc, "brcm,bcm7271-l2-intc",
-	brcmstb_l2_lvl_intc_of_init);
+
+IRQCHIP_PLATFORM_DRIVER_BEGIN(brcmstb_l2)
+IRQCHIP_MATCH("brcm,l2-intc", brcmstb_l2_edge_intc_of_init)
+IRQCHIP_MATCH("brcm,hif-spi-l2-intc", brcmstb_l2_edge_intc_of_init)
+IRQCHIP_MATCH("brcm,upg-aux-aon-l2-intc", brcmstb_l2_edge_intc_of_init)
+IRQCHIP_MATCH("brcm,bcm7271-l2-intc", brcmstb_l2_lvl_intc_of_init)
+IRQCHIP_PLATFORM_DRIVER_END(brcmstb_l2)
+MODULE_DESCRIPTION("Broadcom STB generic L2 interrupt controller");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c
index e50676ce2ec8..d90ff0b92480 100644
--- a/drivers/irqchip/irq-meson-gpio.c
+++ b/drivers/irqchip/irq-meson-gpio.c
@@ -436,8 +436,7 @@ static const struct irq_domain_ops meson_gpio_irq_domain_ops = {
 	.translate	= meson_gpio_irq_domain_translate,
 };
 
-static int __init meson_gpio_irq_parse_dt(struct device_node *node,
-					  struct meson_gpio_irq_controller *ctl)
+static int meson_gpio_irq_parse_dt(struct device_node *node, struct meson_gpio_irq_controller *ctl)
 {
 	const struct of_device_id *match;
 	int ret;
@@ -463,8 +462,7 @@ static int __init meson_gpio_irq_parse_dt(struct device_node *node,
 	return 0;
 }
 
-static int __init meson_gpio_irq_of_init(struct device_node *node,
-					 struct device_node *parent)
+static int meson_gpio_irq_of_init(struct device_node *node, struct device_node *parent)
 {
 	struct irq_domain *domain, *parent_domain;
 	struct meson_gpio_irq_controller *ctl;
@@ -521,5 +519,10 @@ free_ctl:
 	return ret;
 }
 
-IRQCHIP_DECLARE(meson_gpio_intc, "amlogic,meson-gpio-intc",
-		meson_gpio_irq_of_init);
+IRQCHIP_PLATFORM_DRIVER_BEGIN(meson_gpio_intc)
+IRQCHIP_MATCH("amlogic,meson-gpio-intc", meson_gpio_irq_of_init)
+IRQCHIP_PLATFORM_DRIVER_END(meson_gpio_intc)
+
+MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:meson-gpio-intc");