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authorArnd Bergmann <arnd@arndb.de>2013-04-12 15:27:09 +0200
committerArnd Bergmann <arnd@arndb.de>2013-04-19 23:00:43 +0200
commit863a08dc8bc7ce32ecc9136671610a93a0dd68b1 (patch)
treea5a88aaeed57ca5c32bb4ce77c3c778156c46619 /drivers/irqchip
parent92c8e4962054a6cf5171b3d7a3a77b799ca62c10 (diff)
downloadop-kernel-dev-863a08dc8bc7ce32ecc9136671610a93a0dd68b1.zip
op-kernel-dev-863a08dc8bc7ce32ecc9136671610a93a0dd68b1.tar.gz
irqchip: exynos: pass irq_base from platform
The platform code knows the IRQ base, while the irqchip driver should really not. This is a littly hacky because we still hardwire the IRQ base to 160 for the combiner in the DT case, when we should really use -1. Removing that line will cause a linear IRQ domain to be use, as we should. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/exynos-combiner.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/irqchip/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c
index acb9c74..6855c92 100644
--- a/drivers/irqchip/exynos-combiner.c
+++ b/drivers/irqchip/exynos-combiner.c
@@ -206,27 +206,22 @@ static unsigned int combiner_lookup_irq(int group)
void __init combiner_init(void __iomem *combiner_base,
struct device_node *np,
- unsigned int max_nr)
+ unsigned int max_nr,
+ int irq_base)
{
- int i, irq, irq_base;
+ int i, irq;
unsigned int nr_irq;
struct combiner_chip_data *combiner_data;
nr_irq = max_nr * IRQ_IN_COMBINER;
- irq_base = irq_alloc_descs(COMBINER_IRQ(0, 0), 1, nr_irq, 0);
- if (IS_ERR_VALUE(irq_base)) {
- irq_base = COMBINER_IRQ(0, 0);
- pr_warning("%s: irq desc alloc failed. Continuing with %d as linux irq base\n", __func__, irq_base);
- }
-
combiner_data = kcalloc(max_nr, sizeof (*combiner_data), GFP_KERNEL);
if (!combiner_data) {
pr_warning("%s: could not allocate combiner data\n", __func__);
return;
}
- combiner_irq_domain = irq_domain_add_legacy(np, nr_irq, irq_base, 0,
+ combiner_irq_domain = irq_domain_add_simple(np, nr_irq, irq_base,
&combiner_irq_domain_ops, combiner_data);
if (WARN_ON(!combiner_irq_domain)) {
pr_warning("%s: irq domain init failed\n", __func__);
@@ -253,6 +248,7 @@ static int __init combiner_of_init(struct device_node *np,
{
void __iomem *combiner_base;
unsigned int max_nr = 20;
+ int irq_base = -1;
combiner_base = of_iomap(np, 0);
if (!combiner_base) {
@@ -266,7 +262,14 @@ static int __init combiner_of_init(struct device_node *np,
__func__, max_nr);
}
- combiner_init(combiner_base, np, max_nr);
+ /*
+ * FIXME: This is a hardwired COMBINER_IRQ(0,0). Once all devices
+ * get their IRQ from DT, remove this in order to get dynamic
+ * allocation.
+ */
+ irq_base = 160;
+
+ combiner_init(combiner_base, np, max_nr, irq_base);
return 0;
}
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