irq_domain/powerpc: Use common irq_domain structure instead of irq_host
This patch drops the powerpc-specific irq_host structures and uses the common
irq_domain strucutres defined in linux/irqdomain.h. It also fixes all
the users to use the new structure names.
Renaming irq_host to irq_domain has been discussed for a long time, and this
patch is a step in the process of generalizing the powerpc virq code to be
usable by all architecture.
An astute reader will notice that this patch actually removes the irq_host
structure instead of renaming it. This is because the irq_domain structure
already exists in include/linux/irqdomain.h and has the needed data members.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Milton Miller <miltonm@bga.com>
Tested-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/powerpc/platforms/embedded6xx/flipper-pic.c b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
index f61a2dd..f862361 100644
--- a/arch/powerpc/platforms/embedded6xx/flipper-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
@@ -96,9 +96,9 @@
*
*/
-static struct irq_host *flipper_irq_host;
+static struct irq_domain *flipper_irq_host;
-static int flipper_pic_map(struct irq_host *h, unsigned int virq,
+static int flipper_pic_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hwirq)
{
irq_set_chip_data(virq, h->host_data);
@@ -107,13 +107,13 @@
return 0;
}
-static int flipper_pic_match(struct irq_host *h, struct device_node *np)
+static int flipper_pic_match(struct irq_domain *h, struct device_node *np)
{
return 1;
}
-static struct irq_host_ops flipper_irq_host_ops = {
+static struct irq_domain_ops flipper_irq_domain_ops = {
.map = flipper_pic_map,
.match = flipper_pic_match,
};
@@ -130,10 +130,10 @@
out_be32(io_base + FLIPPER_ICR, 0xffffffff);
}
-struct irq_host * __init flipper_pic_init(struct device_node *np)
+struct irq_domain * __init flipper_pic_init(struct device_node *np)
{
struct device_node *pi;
- struct irq_host *irq_host = NULL;
+ struct irq_domain *irq_domain = NULL;
struct resource res;
void __iomem *io_base;
int retval;
@@ -159,22 +159,22 @@
__flipper_quiesce(io_base);
- irq_host = irq_alloc_host(np, IRQ_HOST_MAP_LINEAR, FLIPPER_NR_IRQS,
- &flipper_irq_host_ops, -1);
- if (!irq_host) {
- pr_err("failed to allocate irq_host\n");
+ irq_domain = irq_alloc_host(np, IRQ_DOMAIN_MAP_LINEAR, FLIPPER_NR_IRQS,
+ &flipper_irq_domain_ops, -1);
+ if (!irq_domain) {
+ pr_err("failed to allocate irq_domain\n");
return NULL;
}
- irq_host->host_data = io_base;
+ irq_domain->host_data = io_base;
out:
- return irq_host;
+ return irq_domain;
}
unsigned int flipper_pic_get_irq(void)
{
- void __iomem *io_base = flipper_irq_host->host_data;
+ void __iomem *io_base = flipper_irq_domain->host_data;
int irq;
u32 irq_status;
@@ -184,7 +184,7 @@
return NO_IRQ; /* no more IRQs pending */
irq = __ffs(irq_status);
- return irq_linear_revmap(flipper_irq_host, irq);
+ return irq_linear_revmap(flipper_irq_domain, irq);
}
/*
@@ -199,7 +199,7 @@
np = of_find_compatible_node(NULL, NULL, "nintendo,flipper-pic");
BUG_ON(!np);
- flipper_irq_host = flipper_pic_init(np);
+ flipper_irq_domain = flipper_pic_init(np);
BUG_ON(!flipper_irq_host);
irq_set_default_host(flipper_irq_host);