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>

16 files changed, 35 insertions, 39 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;
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index b010d42a1803..ae6e5542ec46 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -224,7 +224,7 @@ static int caam_probe(struct platform_device *pdev)
         topregs = (struct caam_full __iomem *)ctrl;
 
         /* Get the IRQ of the controller (for security violations only) */
-        ctrlpriv->secvio_irq = of_irq_to_resource(nprop, 0, NULL);
+        ctrlpriv->secvio_irq = irq_of_parse_and_map(nprop, 0);
 
         /*
          * Enable DECO watchdogs and, if this is a PHYS_ADDR_T_64BIT kernel,
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 105ba4da6180..517a16d87e4b 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -403,7 +403,7 @@ int caam_jr_probe(struct platform_device *pdev, struct device_node *np,
                 dma_set_mask(jrdev, DMA_BIT_MASK(32));
 
         /* Identify the interrupt */
-        jrpriv->irq = of_irq_to_resource(np, 0, NULL);
+        jrpriv->irq = irq_of_parse_and_map(np, 0);
 
         /* Now do the platform independent part */
         error = caam_jr_init(jrdev); /* now turn on hardware */
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 8bdde57f6bb1..e28104b4aab0 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -1818,7 +1818,7 @@ static int omap_sham_get_res_of(struct omap_sham_dev *dd,
                 goto err;
         }
 
-        dd->irq = of_irq_to_resource(node, 0, NULL);
+        dd->irq = irq_of_parse_and_map(node, 0);
         if (!dd->irq) {
                 dev_err(dev, "can't translate OF irq value\n");
                 err = -EINVAL;
diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c
index b2b8aa9adc0e..3e5ea2c87a6e 100644
--- a/drivers/i2c/busses/i2c-cpm.c
+++ b/drivers/i2c/busses/i2c-cpm.c
@@ -447,7 +447,7 @@ static int cpm_i2c_setup(struct cpm_i2c *cpm)
 
         init_waitqueue_head(&cpm->i2c_wait);
 
-        cpm->irq = of_irq_to_resource(ofdev->dev.of_node, 0, NULL);
+        cpm->irq = irq_of_parse_and_map(ofdev->dev.of_node, 0);
         if (!cpm->irq)
                 return -EINVAL;
 
diff --git a/drivers/input/serio/xilinx_ps2.c b/drivers/input/serio/xilinx_ps2.c
index 4b7662a17ae9..36f7b9533397 100644
--- a/drivers/input/serio/xilinx_ps2.c
+++ b/drivers/input/serio/xilinx_ps2.c
@@ -235,12 +235,12 @@ static void sxps2_close(struct serio *pserio)
  */
 static int xps2_of_probe(struct platform_device *ofdev)
 {
-        struct resource r_irq; /* Interrupt resources */
         struct resource r_mem; /* IO mem resources */
         struct xps2data *drvdata;
         struct serio *serio;
         struct device *dev = &ofdev->dev;
         resource_size_t remap_size, phys_addr;
+        unsigned int irq;
         int error;
 
         dev_info(dev, "Device Tree Probing \'%s\'\n",
@@ -254,7 +254,8 @@ static int xps2_of_probe(struct platform_device *ofdev)
         }
 
         /* Get IRQ for the device */
-        if (!of_irq_to_resource(ofdev->dev.of_node, 0, &r_irq)) {
+        irq = irq_of_parse_and_map(ofdev->dev.of_node, 0);
+        if (!irq) {
                 dev_err(dev, "no IRQ found\n");
                 return -ENODEV;
         }
@@ -267,7 +268,7 @@ static int xps2_of_probe(struct platform_device *ofdev)
         }
 
         spin_lock_init(&drvdata->lock);
-        drvdata->irq = r_irq.start;
+        drvdata->irq = irq;
         drvdata->serio = serio;
         drvdata->dev = dev;
 
diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c
index 9e1601487263..d0878526c0c8 100644
--- a/drivers/net/ethernet/arc/emac_main.c
+++ b/drivers/net/ethernet/arc/emac_main.c
@@ -628,12 +628,12 @@ static const struct net_device_ops arc_emac_netdev_ops = {
 
 static int arc_emac_probe(struct platform_device *pdev)
 {
-        struct resource res_regs, res_irq;
+        struct resource res_regs;
         struct device_node *phy_node;
         struct arc_emac_priv *priv;
         struct net_device *ndev;
         const char *mac_addr;
-        unsigned int id, clock_frequency;
+        unsigned int id, clock_frequency, irq;
         int err;
 
         if (!pdev->dev.of_node)
@@ -661,8 +661,8 @@ static int arc_emac_probe(struct platform_device *pdev)
         }
 
         /* Get IRQ from device tree */
-        err = of_irq_to_resource(pdev->dev.of_node, 0, &res_irq);
-        if (!err) {
+        irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
+        if (!irq) {
                 dev_err(&pdev->dev, "failed to retrieve <irq> value from device tree\n");
                 return -ENODEV;
         }
@@ -711,7 +711,7 @@ static int arc_emac_probe(struct platform_device *pdev)
                 goto out;
         }
 
-        ndev->irq = res_irq.start;
+        ndev->irq = irq;
         dev_info(&pdev->dev, "IRQ is %d\n", ndev->irq);
 
         /* Register interrupt handler for device */
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c b/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c
index 7583a9572bcc..10f781d8cb09 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c
@@ -88,7 +88,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
         struct fs_platform_info *fpi = fep->fpi;
         int ret = -EINVAL;
 
-        fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL);
+        fep->interrupt = irq_of_parse_and_map(ofdev->dev.of_node, 0);
         if (fep->interrupt == NO_IRQ)
                 goto out;
 
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
index 9ae6cdbcac2e..53a0c23b4890 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
@@ -98,7 +98,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
 {
         struct platform_device *ofdev = to_platform_device(fep->dev);
 
-        fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL);
+        fep->interrupt = irq_of_parse_and_map(ofdev->dev.of_node, 0);
         if (fep->interrupt == NO_IRQ)
                 return -EINVAL;
 
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-scc.c b/drivers/net/ethernet/freescale/fs_enet/mac-scc.c
index 22a02a767069..631f09872fa2 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-scc.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-scc.c
@@ -98,7 +98,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
 {
         struct platform_device *ofdev = to_platform_device(fep->dev);
 
-        fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL);
+        fep->interrupt = irq_of_parse_and_map(ofdev->dev.of_node, 0);
         if (fep->interrupt == NO_IRQ)
                 return -EINVAL;
 
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index b8f1103fe28e..3197d55f30cd 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -687,7 +687,7 @@ static int of_fsl_espi_probe(struct platform_device *ofdev)
         struct device_node *np = ofdev->dev.of_node;
         struct spi_master *master;
         struct resource mem;
-        struct resource irq;
+        unsigned int irq;
         int ret = -ENOMEM;
 
         ret = of_mpc8xxx_spi_probe(ofdev);
@@ -702,13 +702,13 @@ static int of_fsl_espi_probe(struct platform_device *ofdev)
         if (ret)
                 goto err;
 
-        ret = of_irq_to_resource(np, 0, &irq);
+        irq = irq_of_parse_and_map(np, 0);
         if (!ret) {
                 ret = -EINVAL;
                 goto err;
         }
 
-        master = fsl_espi_probe(dev, &mem, irq.start);
+        master = fsl_espi_probe(dev, &mem, irq);
         if (IS_ERR(master)) {
                 ret = PTR_ERR(master);
                 goto err;
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index 1a535f70dc41..6957f445a114 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -1207,7 +1207,7 @@ static int cpm_uart_init_port(struct device_node *np,
         pinfo->port.fifosize = pinfo->tx_nrfifos * pinfo->tx_fifosize;
         spin_lock_init(&pinfo->port.lock);
 
-        pinfo->port.irq = of_irq_to_resource(np, 0, NULL);
+        pinfo->port.irq = irq_of_parse_and_map(np, 0);
         if (pinfo->port.irq == NO_IRQ) {
                 ret = -EINVAL;
                 goto out_pram;