Allow the user selection and building of this interrupt controller
driver as a module since it is used on ARM/ARM64 based systems as a
second level interrupt controller hanging off the ARM GIC and is
therefore loadable during boot.
To avoid using of_irq_count() which is not exported towards module,
switch the driver to use the platform_device provided by the irqchip
platform driver code and resolve the number of interrupts using
platform_irq_count().
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
drivers/irqchip/Kconfig | 4 +++-
drivers/irqchip/irq-bcm7120-l2.c | 21 +++++++++++++++------
2 files changed, 18 insertions(+), 7 deletions(-)
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index dfe54bf9b35f..c7320bed5668 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -123,7 +123,9 @@ config BCM7038_L1_IRQ
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
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 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
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");
--
2.25.1
