Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753881Ab1DRIvG (ORCPT ); Mon, 18 Apr 2011 04:51:06 -0400 Received: from mail-bw0-f46.google.com ([209.85.214.46]:48315 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752096Ab1DRIu6 (ORCPT ); Mon, 18 Apr 2011 04:50:58 -0400 From: Michal Simek To: devicetree-discuss@lists.ozlabs.org Cc: grant.likely@secretlab.ca, john.williams@petalogix.com, linux-kernel@vger.kernel.org, hjk@hansjkoch.de, w.sang@pengutronix.de, arnd@arndb.de, Michal Simek Subject: [PATCH v3] uio/pdrv_genirq: Add OF support Date: Mon, 18 Apr 2011 10:50:54 +0200 Message-Id: <1303116654-5042-1-git-send-email-monstr@monstr.eu> X-Mailer: git-send-email 1.5.5.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3163 Lines: 115 Adding OF binding to genirq. Version string is setup to the "devicetree". Compatible string is not setup for now but you can add your custom compatible string to uio_of_genirq_match structure. For example with "uio" compatible string: static const struct of_device_id __devinitconst uio_of_genirq_match[] = { { .compatible = "uio", }, { /* empty for now */ }, }; Signed-off-by: Michal Simek --- v3: Fix irq binding Use "devicetree" as version string v2: Remove additional resource binding Setup correct version string Clear compatible string --- drivers/uio/uio_pdrv_genirq.c | 42 +++++++++++++++++++++++++++++++++++++++++ 1 files changed, 42 insertions(+), 0 deletions(-) diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c index 7174d51..c8d565a 100644 --- a/drivers/uio/uio_pdrv_genirq.c +++ b/drivers/uio/uio_pdrv_genirq.c @@ -23,6 +23,10 @@ #include #include +#include +#include +#include + #define DRIVER_NAME "uio_pdrv_genirq" struct uio_pdrv_genirq_platdata { @@ -97,6 +101,30 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev) int ret = -EINVAL; int i; + if (!uioinfo) { + int irq; + + /* alloc uioinfo for one device */ + uioinfo = kzalloc(sizeof(*uioinfo), GFP_KERNEL); + if (!uioinfo) { + ret = -ENOMEM; + dev_err(&pdev->dev, "unable to kmalloc\n"); + goto bad2; + } + uioinfo->name = pdev->dev.of_node->name; + uioinfo->version = "devicetree"; + + /* Multiple IRQs are not supported */ + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + uioinfo->irq = UIO_IRQ_NONE; + dev_info(&pdev->dev, "no IRQ found\n"); + } else { + uioinfo->irq = irq; + dev_info(&pdev->dev, "irq %d\n", (u32)uioinfo->irq); + } + } + if (!uioinfo || !uioinfo->name || !uioinfo->version) { dev_err(&pdev->dev, "missing platform_data\n"); goto bad0; @@ -180,6 +208,10 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev) kfree(priv); pm_runtime_disable(&pdev->dev); bad0: + /* kfree uioinfo for CONFIG_OF */ + if (!pdev->dev.platform_data) + kfree(uioinfo); + bad2: return ret; } @@ -215,6 +247,15 @@ static const struct dev_pm_ops uio_pdrv_genirq_dev_pm_ops = { .runtime_resume = uio_pdrv_genirq_runtime_nop, }; +#ifdef CONFIG_OF +static const struct of_device_id __devinitconst uio_of_genirq_match[] = { + { /* empty for now */ }, +}; +MODULE_DEVICE_TABLE(of, uio_of_genirq_match); +#else +# define uio_of_genirq_match NULL +#endif + static struct platform_driver uio_pdrv_genirq = { .probe = uio_pdrv_genirq_probe, .remove = uio_pdrv_genirq_remove, @@ -222,6 +263,7 @@ static struct platform_driver uio_pdrv_genirq = { .name = DRIVER_NAME, .owner = THIS_MODULE, .pm = &uio_pdrv_genirq_dev_pm_ops, + .of_match_table = uio_of_genirq_match, }, }; -- 1.5.5.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/