of/irq: Use irq_of_parse_and_map()

Replace some instances of of_irq_map_one()/irq_create_of_mapping() and
of_irq_to_resource() by the simpler equivalent irq_of_parse_and_map().

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
[grant.likely: resolved conflicts with core code renames]
Signed-off-by: Grant Likely <grant.likely@linaro.org>

5 files changed, 15 insertions, 20 deletions

diff --git a/arch/arm/mach-u300/timer.c b/arch/arm/mach-u300/timer.c
index b5db207dfd1e..9a5f9fb352ce 100644
--- a/arch/arm/mach-u300/timer.c
+++ b/arch/arm/mach-u300/timer.c
@@ -358,8 +358,7 @@ static struct delay_timer u300_delay_timer;
  */
 static void __init u300_timer_init_of(struct device_node *np)
 {
-        struct resource irq_res;
-        int irq;
+        unsigned int irq;
         struct clk *clk;
         unsigned long rate;
 
@@ -368,11 +367,11 @@ static void __init u300_timer_init_of(struct device_node *np)
                 panic("could not ioremap system timer\n");
 
         /* Get the IRQ for the GP1 timer */
-        irq = of_irq_to_resource(np, 2, &irq_res);
-        if (irq <= 0)
+        irq = irq_of_parse_and_map(np, 2);
+        if (!irq)
                 panic("no IRQ for system timer\n");
 
-        pr_info("U300 GP1 timer @ base: %p, IRQ: %d\n", u300_timer_base, irq);
+        pr_info("U300 GP1 timer @ base: %p, IRQ: %u\n", u300_timer_base, irq);
 
         /* Clock the interrupt controller */
         clk = of_clk_get(np, 0);
diff --git a/arch/powerpc/platforms/cell/celleb_scc_pciex.c b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
index b3ea96db5b06..4278acfa2ede 100644
--- a/arch/powerpc/platforms/cell/celleb_scc_pciex.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
@@ -486,7 +486,6 @@ static __init int celleb_setup_pciex(struct device_node *node,
                                      struct pci_controller *phb)
 {
         struct resource r;
-        struct of_phandle_args oirq;
         int virq;
 
         /* SMMIO registers; used inside this file */
@@ -507,11 +506,11 @@ static __init int celleb_setup_pciex(struct device_node *node,
         phb->ops = &scc_pciex_pci_ops;
 
         /* internal interrupt handler */
-        if (of_irq_parse_one(node, 1, &oirq)) {
+        virq = irq_of_parse_and_map(node, 1);
+        if (!virq) {
                 pr_err("PCIEXC:Failed to map irq\n");
                 goto error;
         }
-        virq = irq_create_of_mapping(&oirq);
         if (request_irq(virq, pciex_handle_internal_irq,
                         0, "pciex", (void *)phb)) {
                 pr_err("PCIEXC:Failed to request irq\n");
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index d20680446174..1f72f4ab6353 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -235,9 +235,9 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
         /* First, we check whether we have a real "interrupts" in the device
          * tree in case the device-tree is ever fixed
          */
-        struct of_phandle_args oirq;
-        if (of_irq_parse_one(pic->host->of_node, 0, &oirq) == 0)
-                return irq_create_of_mapping(&oirq);
+        virq = irq_of_parse_and_map(pic->host->of_node, 0);
+        if (virq)
+                return virq;
 
         /* Now do the horrible hacks */
         tmp = of_get_property(pic->host->of_node, "#interrupt-cells", NULL);
diff --git a/arch/powerpc/sysdev/fsl_gtm.c b/arch/powerpc/sysdev/fsl_gtm.c
index 0eb871cc3437..dd0d5be6cd1f 100644
--- a/arch/powerpc/sysdev/fsl_gtm.c
+++ b/arch/powerpc/sysdev/fsl_gtm.c
@@ -401,16 +401,15 @@ static int __init fsl_gtm_init(void)
                 gtm->clock = *clock;
 
                 for (i = 0; i < ARRAY_SIZE(gtm->timers); i++) {
-                        int ret;
-                        struct resource irq;
+                        unsigned int irq;
 
-                        ret = of_irq_to_resource(np, i, &irq);
-                        if (ret == NO_IRQ) {
+                        irq = irq_of_parse_and_map(np, i);
+                        if (irq == NO_IRQ) {
                                 pr_err("%s: not enough interrupts specified\n",
                                        np->full_name);
                                 goto err;
                         }
-                        gtm->timers[i].irq = irq.start;
+                        gtm->timers[i].irq = irq;
                         gtm->timers[i].gtm = gtm;
                 }
 
diff --git a/arch/powerpc/sysdev/mpic_msgr.c b/arch/powerpc/sysdev/mpic_msgr.c
index c75325865a85..2c9b52aa266c 100644
--- a/arch/powerpc/sysdev/mpic_msgr.c
+++ b/arch/powerpc/sysdev/mpic_msgr.c
@@ -237,15 +237,13 @@ static int mpic_msgr_probe(struct platform_device *dev)
                 raw_spin_lock_init(&msgr->lock);
 
                 if (receive_mask & (1 << i)) {
-                        struct resource irq;
-
-                        if (of_irq_to_resource(np, irq_index, &irq) == NO_IRQ) {
+                        msgr->irq = irq_of_parse_and_map(np, irq_index);
+                        if (msgr->irq == NO_IRQ) {
                                 dev_err(&dev->dev,
                                                 "Missing interrupt specifier");
                                 kfree(msgr);
                                 return -EFAULT;
                         }
-                        msgr->irq = irq.start;
                         irq_index += 1;
                 } else {
                         msgr->irq = NO_IRQ;