Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932780Ab1EFArz (ORCPT ); Thu, 5 May 2011 20:47:55 -0400 Received: from www.hansjkoch.de ([178.63.77.200]:35448 "EHLO www.hansjkoch.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932325Ab1EFArx (ORCPT ); Thu, 5 May 2011 20:47:53 -0400 Date: Fri, 6 May 2011 02:47:49 +0200 From: "Hans J. Koch" To: Michal Simek Cc: devicetree-discuss@lists.ozlabs.org, linux-kernel@vger.kernel.org, "Hans J. Koch" , Arnd Bergmann , John Williams , Grant Likely , Wolfram Sang Subject: Re: [PATCH v5] uio/pdrv_genirq: Add OF support Message-ID: <20110506004748.GB2790@local> References: <1304577644-4024-1-git-send-email-monstr@monstr.eu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1304577644-4024-1-git-send-email-monstr@monstr.eu> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4098 Lines: 145 On Thu, May 05, 2011 at 08:40:44AM +0200, Michal Simek wrote: I think we've got it. Thanks, Hans > 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 "vendor,device" compatible string: > static const struct of_device_id __devinitconst uio_of_genirq_match[] = { > { .compatible = "vendor,device", }, > { /* empty for now */ }, > }; > > Signed-off-by: Michal Simek Signed-off-by: Hans J. Koch > CC: Hans J. Koch > CC: Arnd Bergmann > CC: John Williams > CC: Grant Likely > CC: Wolfram Sang > > --- > v5: Free uioinfo in genirq_remove > Use pdev->dev.of_node for OF detection > > v4: Remove dev_info messages > Check irq against -ENXIO for no irq > > 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 | 44 +++++++++++++++++++++++++++++++++++++++++ > 1 files changed, 44 insertions(+), 0 deletions(-) > > diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c > index 7174d51..24bb395 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 +101,27 @@ 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 == -ENXIO) > + uioinfo->irq = UIO_IRQ_NONE; > + else > + uioinfo->irq = irq; > + } > + > if (!uioinfo || !uioinfo->name || !uioinfo->version) { > dev_err(&pdev->dev, "missing platform_data\n"); > goto bad0; > @@ -180,6 +205,10 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev) > kfree(priv); > pm_runtime_disable(&pdev->dev); > bad0: > + /* kfree uioinfo for OF */ > + if (pdev->dev.of_node) > + kfree(uioinfo); > + bad2: > return ret; > } > > @@ -189,6 +218,11 @@ static int uio_pdrv_genirq_remove(struct platform_device *pdev) > > uio_unregister_device(priv->uioinfo); > pm_runtime_disable(&pdev->dev); > + > + /* kfree uioinfo for OF */ > + if (pdev->dev.of_node) > + kfree(priv->uioinfo); > + > kfree(priv); > return 0; > } > @@ -215,6 +249,15 @@ 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 +265,7 @@ 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/