Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755287Ab3CMGuu (ORCPT ); Wed, 13 Mar 2013 02:50:50 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:57949 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752285Ab3CMGut (ORCPT ); Wed, 13 Mar 2013 02:50:49 -0400 From: "Vishwanathrao Badarkhe, Manish" To: , , , CC: , "Vishwanathrao Badarkhe, Manish" Subject: [PATCH] rtc: omap: update to devm_* API Date: Wed, 13 Mar 2013 12:21:04 +0530 Message-ID: <1363157464-9962-1-git-send-email-manishv.b@ti.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4727 Lines: 146 From: Vishwanathrao Badarkhe, Manish Update the code to use devm_* API so that driver core will manage resources. Signed-off-by: Vishwanathrao Badarkhe, Manish --- Applied on top of linux-next: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git with tag next-20130312. :100644 100644 172cc5c... a1f9d30... M drivers/rtc/rtc-omap.c drivers/rtc/rtc-omap.c | 45 +++++++++------------------------------------ 1 files changed, 9 insertions(+), 36 deletions(-) diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index 172cc5c..a1f9d30 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -324,7 +324,7 @@ MODULE_DEVICE_TABLE(of, omap_rtc_of_match); static int __init omap_rtc_probe(struct platform_device *pdev) { - struct resource *res, *mem; + struct resource *res; struct rtc_device *rtc; u8 reg, new_ctrl; const struct platform_device_id *id_entry; @@ -352,18 +352,9 @@ static int __init omap_rtc_probe(struct platform_device *pdev) return -ENOENT; } - mem = request_mem_region(res->start, resource_size(res), pdev->name); - if (!mem) { - pr_debug("%s: RTC registers at %08x are not free\n", - pdev->name, res->start); - return -EBUSY; - } - - rtc_base = ioremap(res->start, resource_size(res)); - if (!rtc_base) { - pr_debug("%s: RTC registers can't be mapped\n", pdev->name); - goto fail; - } + rtc_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(rtc_base)) + return PTR_ERR(rtc_base); /* Enable the clock/module so that we can access the registers */ pm_runtime_enable(&pdev->dev); @@ -375,7 +366,7 @@ static int __init omap_rtc_probe(struct platform_device *pdev) rtc_writel(KICK1_VALUE, OMAP_RTC_KICK1_REG); } - rtc = rtc_device_register(pdev->name, &pdev->dev, + rtc = devm_rtc_device_register(&pdev->dev, pdev->name, &omap_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) { pr_debug("%s: can't register RTC device, err %ld\n", @@ -383,7 +374,6 @@ static int __init omap_rtc_probe(struct platform_device *pdev) goto fail0; } platform_set_drvdata(pdev, rtc); - dev_set_drvdata(&rtc->dev, mem); /* clear pending irqs, and set 1/second periodic, * which we'll use instead of update irqs @@ -401,18 +391,18 @@ static int __init omap_rtc_probe(struct platform_device *pdev) rtc_write(OMAP_RTC_STATUS_ALARM, OMAP_RTC_STATUS_REG); /* handle periodic and alarm irqs */ - if (request_irq(omap_rtc_timer, rtc_irq, 0, + if (devm_request_irq(&pdev->dev, omap_rtc_timer, rtc_irq, 0, dev_name(&rtc->dev), rtc)) { pr_debug("%s: RTC timer interrupt IRQ%d already claimed\n", pdev->name, omap_rtc_timer); - goto fail1; + goto fail0; } if ((omap_rtc_timer != omap_rtc_alarm) && - (request_irq(omap_rtc_alarm, rtc_irq, 0, + (devm_request_irq(&pdev->dev, omap_rtc_alarm, rtc_irq, 0, dev_name(&rtc->dev), rtc))) { pr_debug("%s: RTC alarm interrupt IRQ%d already claimed\n", pdev->name, omap_rtc_alarm); - goto fail2; + goto fail0; } /* On boards with split power, RTC_ON_NOFF won't reset the RTC */ @@ -446,25 +436,16 @@ static int __init omap_rtc_probe(struct platform_device *pdev) return 0; -fail2: - free_irq(omap_rtc_timer, rtc); -fail1: - rtc_device_unregister(rtc); fail0: if (id_entry && (id_entry->driver_data & OMAP_RTC_HAS_KICKER)) rtc_writel(0, OMAP_RTC_KICK0_REG); pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); - iounmap(rtc_base); -fail: - release_mem_region(mem->start, resource_size(mem)); return -EIO; } static int __exit omap_rtc_remove(struct platform_device *pdev) { - struct rtc_device *rtc = platform_get_drvdata(pdev); - struct resource *mem = dev_get_drvdata(&rtc->dev); const struct platform_device_id *id_entry = platform_get_device_id(pdev); @@ -473,12 +454,6 @@ static int __exit omap_rtc_remove(struct platform_device *pdev) /* leave rtc running, but disable irqs */ rtc_write(0, OMAP_RTC_INTERRUPTS_REG); - free_irq(omap_rtc_timer, rtc); - - if (omap_rtc_timer != omap_rtc_alarm) - free_irq(omap_rtc_alarm, rtc); - - rtc_device_unregister(rtc); if (id_entry && (id_entry->driver_data & OMAP_RTC_HAS_KICKER)) rtc_writel(0, OMAP_RTC_KICK0_REG); @@ -486,8 +461,6 @@ static int __exit omap_rtc_remove(struct platform_device *pdev) pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); - iounmap(rtc_base); - release_mem_region(mem->start, resource_size(mem)); return 0; } -- 1.7.4.1 -- 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/