From: Sean Wang <sean.wang@mediatek.com>
To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: robh+dt@kernel.org, mark.rutland@arm.com, sre@kernel.org,
lee.jones@linaro.org, a.zummo@towertech.it,
eddie.huang@mediatek.com, devicetree@vger.kernel.org,
linux-rtc@vger.kernel.org, linux-pm@vger.kernel.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 08/16] rtc: mediatek: remove unnecessary irq_dispose_mapping
Date: Mon, 26 Mar 2018 10:22:07 +0800 [thread overview]
Message-ID: <1522030927.18424.11.camel@mtkswgap22> (raw)
In-Reply-To: <20180323103801.GH3417@piout.net>
On Fri, 2018-03-23 at 11:38 +0100, Alexandre Belloni wrote:
> On 23/03/2018 at 17:15:05 +0800, sean.wang@mediatek.com wrote:
> > From: Sean Wang <sean.wang@mediatek.com>
> >
> > It's unnecessary doing irq_dispose_mapping as a reverse operation for
> > platform_get_irq.
> >
> > Ususally, irq_dispose_mapping should be called in error path or module
> > removal to release the resources for irq_of_parse_and_map requested.
> >
> > Signed-off-by: Sean Wang <sean.wang@mediatek.com>
> > ---
> > drivers/rtc/rtc-mt6397.c | 7 ++-----
> > 1 file changed, 2 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c
> > index b62eaa8..cefb83b 100644
> > --- a/drivers/rtc/rtc-mt6397.c
> > +++ b/drivers/rtc/rtc-mt6397.c
> > @@ -17,7 +17,6 @@
> > #include <linux/module.h>
> > #include <linux/regmap.h>
> > #include <linux/rtc.h>
> > -#include <linux/irqdomain.h>
> > #include <linux/jiffies.h>
> > #include <linux/platform_device.h>
> > #include <linux/of_address.h>
> > @@ -336,7 +335,7 @@ static int mtk_rtc_probe(struct platform_device *pdev)
> > if (ret) {
> > dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
> > rtc->irq, ret);
> > - goto out_dispose_irq;
> > + return ret;
> > }
> >
> > device_init_wakeup(&pdev->dev, 1);
> > @@ -353,8 +352,7 @@ static int mtk_rtc_probe(struct platform_device *pdev)
> >
> > out_free_irq:
> > free_irq(rtc->irq, rtc->rtc_dev);
> > -out_dispose_irq:
> > - irq_dispose_mapping(rtc->irq);
> > +
>
> Don't you still have a irq_create_mapping?
>
Sorry for that I didn't mention in the beginning that the series must
depend on another patch [1]. With the patch, the job irq_create_mapping
had been moved from rtc to mfd, so here it should be better to cleanup
up irq_dispose_mapping in all paths.
[1] https://patchwork.kernel.org/patch/9954643/
> > return ret;
> > }
> >
> > @@ -364,7 +362,6 @@ static int mtk_rtc_remove(struct platform_device *pdev)
> >
> > rtc_device_unregister(rtc->rtc_dev);
> > free_irq(rtc->irq, rtc->rtc_dev);
> > - irq_dispose_mapping(rtc->irq);
> >
> > return 0;
> > }
> > --
> > 2.7.4
> >
>
next prev parent reply other threads:[~2018-03-26 2:22 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-23 9:14 [PATCH v1 00/16] Add support to MT6323 RTC and its power device sean.wang
2018-03-23 9:14 ` [PATCH v1 01/16] dt-bindings: power: reset: mediatek: add bindings for " sean.wang
2018-03-26 22:24 ` Rob Herring
2018-03-27 3:21 ` Sean Wang
2018-03-23 9:15 ` [PATCH v1 06/16] rtc: mediatek: remove unnecessary parentheses sean.wang
2018-03-23 10:21 ` Alexandre Belloni
2018-03-24 7:14 ` Sean Wang
2018-03-24 18:53 ` Alexandre Belloni
2018-03-24 19:21 ` Sean Wang
2018-03-23 9:15 ` [PATCH v1 12/16] rtc: mediatek: cleanup header files to include sean.wang
2018-03-25 4:17 ` kbuild test robot
2018-03-25 5:21 ` kbuild test robot
2018-03-23 9:15 ` [PATCH v1 14/16] power: reset: mediatek: add a power-off driver using PMIC RTC device sean.wang
[not found] ` <cover.1521794176.git.sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2018-03-23 9:14 ` [PATCH v1 02/16] dt-bindings: rtc: mediatek: add bindings for PMIC RTC sean.wang-NuS5LvNUpcJWk0Htik3J/w
2018-03-23 9:41 ` Alexandre Belloni
[not found] ` <20180323094118.GC3417-m++hUPXGwpdeoWH0uzbU5w@public.gmane.org>
2018-03-23 10:15 ` Alexandre Belloni
2018-03-24 19:36 ` Sean Wang
2018-03-27 15:18 ` Alexandre Belloni
2018-03-28 3:53 ` Sean Wang
2018-03-28 9:19 ` Alexandre Belloni
2018-03-23 9:15 ` [PATCH v1 03/16] dt-bindings: mfd: mediatek: add a description for MT6323 RTC sean.wang-NuS5LvNUpcJWk0Htik3J/w
2018-03-26 22:24 ` Rob Herring
2018-03-28 11:13 ` Lee Jones
2018-03-23 9:15 ` [PATCH v1 04/16] mfd: mt6397: add MT6323 RTC support into MT6397 driver sean.wang-NuS5LvNUpcJWk0Htik3J/w
[not found] ` <90320622cb491b9d3251e2ce9d0501422f47660f.1521794177.git.sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2018-03-28 11:15 ` Lee Jones
2018-03-23 9:15 ` [PATCH v1 05/16] rtc: mediatek: add MT6323 support to RTC driver sean.wang-NuS5LvNUpcJWk0Htik3J/w
2018-03-23 10:01 ` Alexandre Belloni
2018-03-24 7:06 ` Sean Wang
2018-03-23 9:15 ` [PATCH v1 07/16] rtc: mediatek: replace a poll with regmap_read_poll_timeout sean.wang-NuS5LvNUpcJWk0Htik3J/w
2018-03-23 9:15 ` [PATCH v1 08/16] rtc: mediatek: remove unnecessary irq_dispose_mapping sean.wang-NuS5LvNUpcJWk0Htik3J/w
2018-03-23 10:38 ` Alexandre Belloni
2018-03-26 2:22 ` Sean Wang [this message]
2018-03-23 9:15 ` [PATCH v1 09/16] rtc: mediatek: convert to use device managed functions sean.wang-NuS5LvNUpcJWk0Htik3J/w
2018-03-23 10:50 ` Alexandre Belloni
2018-03-26 4:07 ` Sean Wang
2018-03-27 15:07 ` Alexandre Belloni
2018-03-23 9:15 ` [PATCH v1 10/16] rtc: mediatek: add devm_of_platform_populate sean.wang-NuS5LvNUpcJWk0Htik3J/w
2018-03-23 9:15 ` [PATCH v1 11/16] rtc: mediatek: move the declaration into a globally visible header file sean.wang-NuS5LvNUpcJWk0Htik3J/w
[not found] ` <53afbe8172fb1afd809ce9ba1afeda924b9ea705.1521794177.git.sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2018-03-23 9:57 ` Alexandre Belloni
2018-03-24 7:31 ` Sean Wang
2018-03-24 18:54 ` Alexandre Belloni
2018-03-24 20:00 ` Fabio Estevam
2018-03-25 3:13 ` Sean Wang
2018-03-23 9:15 ` [PATCH v1 13/16] rtc: mediatek: update license converting to using SPDX identifiers sean.wang-NuS5LvNUpcJWk0Htik3J/w
2018-03-23 9:15 ` [PATCH v1 15/16] MAINTAINERS: update entry for ARM/Mediatek RTC DRIVER sean.wang-NuS5LvNUpcJWk0Htik3J/w
2018-03-23 9:15 ` [PATCH v1 16/16] MAINTAINERS: add an entry for MediaTek board level shutdown driver sean.wang-NuS5LvNUpcJWk0Htik3J/w
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