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Message-ID: <CAL_JsqLdBxihDpoVzwrPYQ0VKgi08w4o96EDEmX1Ydb3OCU8DA@mail.gmail.com>
Date: Sun, 22 Sep 2013 16:17:31 -0500
From: Rob Herring <robherring2@...il.com>
To: Thierry Reding <thierry.reding@...il.com>
Cc: Rob Herring <rob.herring@...xeda.com>,
Grant Likely <grant.likely@...aro.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Thomas Gleixner <tglx@...utronix.de>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Ralf Baechle <ralf@...ux-mips.org>,
Russell King <linux@....linux.org.uk>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>, linux-mips@...ux-mips.org,
linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
sparclinux@...r.kernel.org,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 02/10] of/irq: Use irq_of_parse_and_map()
On Wed, Sep 18, 2013 at 8:24 AM, Thierry Reding
<thierry.reding@...il.com> wrote:
> 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@...dia.com>
Acked-by: Rob Herring <rob.herring@...xeda.com>
> ---
> arch/arm/mach-u300/timer.c | 9 ++++-----
> arch/powerpc/platforms/cell/celleb_scc_pciex.c | 8 +++-----
> arch/powerpc/platforms/cell/spider-pic.c | 7 ++-----
> arch/powerpc/sysdev/fsl_gtm.c | 9 ++++-----
> arch/powerpc/sysdev/mpic_msgr.c | 6 ++----
> drivers/crypto/caam/ctrl.c | 2 +-
> drivers/crypto/caam/jr.c | 2 +-
> drivers/crypto/omap-sham.c | 2 +-
> drivers/i2c/busses/i2c-cpm.c | 2 +-
> drivers/input/serio/xilinx_ps2.c | 7 ++++---
> drivers/net/ethernet/arc/emac_main.c | 10 +++++-----
> drivers/net/ethernet/freescale/fs_enet/mac-fcc.c | 2 +-
> drivers/net/ethernet/freescale/fs_enet/mac-fec.c | 2 +-
> drivers/net/ethernet/freescale/fs_enet/mac-scc.c | 2 +-
> drivers/spi/spi-fsl-espi.c | 6 +++---
> drivers/tty/serial/cpm_uart/cpm_uart_core.c | 2 +-
> 16 files changed, 35 insertions(+), 43 deletions(-)
>
> diff --git a/arch/arm/mach-u300/timer.c b/arch/arm/mach-u300/timer.c
> index b5db207..9a5f9fb 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 14be2bd..856ad64 100644
> --- a/arch/powerpc/platforms/cell/celleb_scc_pciex.c
> +++ b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
> @@ -486,8 +486,7 @@ static __init int celleb_setup_pciex(struct device_node *node,
> struct pci_controller *phb)
> {
> struct resource r;
> - struct of_irq oirq;
> - int virq;
> + unsigned int virq;
>
> /* SMMIO registers; used inside this file */
> if (of_address_to_resource(node, 0, &r)) {
> @@ -507,12 +506,11 @@ static __init int celleb_setup_pciex(struct device_node *node,
> phb->ops = &scc_pciex_pci_ops;
>
> /* internal interrupt handler */
> - if (of_irq_map_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.controller, oirq.specifier,
> - oirq.size);
> 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 8e29944..1f72f4a 100644
> --- a/arch/powerpc/platforms/cell/spider-pic.c
> +++ b/arch/powerpc/platforms/cell/spider-pic.c
> @@ -235,12 +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_irq oirq;
> - if (of_irq_map_one(pic->host->of_node, 0, &oirq) == 0) {
> - virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
> - oirq.size);
> + 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 0eb871c..dd0d5be 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 c753258..2c9b52a 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 26438cd..c8224da 100644
> --- a/drivers/crypto/caam/ctrl.c
> +++ b/drivers/crypto/caam/ctrl.c
> @@ -419,7 +419,7 @@ 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 105ba4d..517a16d 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 8bdde57..e28104b 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 b2b8aa9..3e5ea2c 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 4b7662a..36f7b95 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 9e16014..d087852 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 7583a95..10f781d 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 9ae6cdb..53a0c23 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 22a02a7..631f098 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 b8f1103..3197d55 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 1a535f7..6957f445 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;
> --
> 1.8.4
>
> --
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