These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 35 insertions, 30 deletions

diff --git a/kernel/drivers/irqchip/irq-crossbar.c b/kernel/drivers/irqchip/irq-crossbar.c
index c12bb9333..75573fa43 100644
--- a/kernel/drivers/irqchip/irq-crossbar.c
+++ b/kernel/drivers/irqchip/irq-crossbar.c
@@ -11,13 +11,12 @@
  */
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/irqchip.h>
 #include <linux/irqdomain.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/slab.h>
 
-#include "irqchip.h"
-
 #define IRQ_FREE	-1
 #define IRQ_RESERVED	-2
 #define IRQ_SKIP	-3
@@ -79,10 +78,13 @@ static struct irq_chip crossbar_chip = {
 static int allocate_gic_irq(struct irq_domain *domain, unsigned virq,
 			    irq_hw_number_t hwirq)
 {
-	struct of_phandle_args args;
+	struct irq_fwspec fwspec;
 	int i;
 	int err;
 
+	if (!irq_domain_get_of_node(domain->parent))
+		return -EINVAL;
+
 	raw_spin_lock(&cb->lock);
 	for (i = cb->int_max - 1; i >= 0; i--) {
 		if (cb->irq_map[i] == IRQ_FREE) {
@@ -95,13 +97,13 @@ static int allocate_gic_irq(struct irq_domain *domain, unsigned virq,
 	if (i < 0)
 		return -ENODEV;
 
-	args.np = domain->parent->of_node;
-	args.args_count = 3;
-	args.args[0] = 0;	/* SPI */
-	args.args[1] = i;
-	args.args[2] = IRQ_TYPE_LEVEL_HIGH;
+	fwspec.fwnode = domain->parent->fwnode;
+	fwspec.param_count = 3;
+	fwspec.param[0] = 0;	/* SPI */
+	fwspec.param[1] = i;
+	fwspec.param[2] = IRQ_TYPE_LEVEL_HIGH;
 
-	err = irq_domain_alloc_irqs_parent(domain, virq, 1, &args);
+	err = irq_domain_alloc_irqs_parent(domain, virq, 1, &fwspec);
 	if (err)
 		cb->irq_map[i] = IRQ_FREE;
 	else
@@ -113,16 +115,16 @@ static int allocate_gic_irq(struct irq_domain *domain, unsigned virq,
 static int crossbar_domain_alloc(struct irq_domain *d, unsigned int virq,
 				 unsigned int nr_irqs, void *data)
 {
-	struct of_phandle_args *args = data;
+	struct irq_fwspec *fwspec = data;
 	irq_hw_number_t hwirq;
 	int i;
 
-	if (args->args_count != 3)
+	if (fwspec->param_count != 3)
 		return -EINVAL;	/* Not GIC compliant */
-	if (args->args[0] != 0)
+	if (fwspec->param[0] != 0)
 		return -EINVAL;	/* No PPI should point to this domain */
 
-	hwirq = args->args[1];
+	hwirq = fwspec->param[1];
 	if ((hwirq + nr_irqs) > cb->max_crossbar_sources)
 		return -EINVAL;	/* Can't deal with this */
 
@@ -167,28 +169,31 @@ static void crossbar_domain_free(struct irq_domain *domain, unsigned int virq,
 	raw_spin_unlock(&cb->lock);
 }
 
-static int crossbar_domain_xlate(struct irq_domain *d,
-				 struct device_node *controller,
-				 const u32 *intspec, unsigned int intsize,
-				 unsigned long *out_hwirq,
-				 unsigned int *out_type)
+static int crossbar_domain_translate(struct irq_domain *d,
+				     struct irq_fwspec *fwspec,
+				     unsigned long *hwirq,
+				     unsigned int *type)
 {
-	if (d->of_node != controller)
-		return -EINVAL;	/* Shouldn't happen, really... */
-	if (intsize != 3)
-		return -EINVAL;	/* Not GIC compliant */
-	if (intspec[0] != 0)
-		return -EINVAL;	/* No PPI should point to this domain */
+	if (is_of_node(fwspec->fwnode)) {
+		if (fwspec->param_count != 3)
+			return -EINVAL;
 
-	*out_hwirq = intspec[1];
-	*out_type = intspec[2];
-	return 0;
+		/* No PPI should point to this domain */
+		if (fwspec->param[0] != 0)
+			return -EINVAL;
+
+		*hwirq = fwspec->param[1];
+		*type = fwspec->param[2];
+		return 0;
+	}
+
+	return -EINVAL;
 }
 
 static const struct irq_domain_ops crossbar_domain_ops = {
-	.alloc	= crossbar_domain_alloc,
-	.free	= crossbar_domain_free,
-	.xlate	= crossbar_domain_xlate,
+	.alloc		= crossbar_domain_alloc,
+	.free		= crossbar_domain_free,
+	.translate	= crossbar_domain_translate,
 };
 
 static int __init crossbar_of_init(struct device_node *node)