2018-09-02 07:32:38

by Andreas Kemnade

[permalink] [raw]
Subject: [PATCH] mmc: omap_hsmmc: fix wakeirq handling on removal

after unbinding mmc I get things like this:
[ 185.294067] mmc1: card 0001 removed
[ 185.305206] omap_hsmmc 480b4000.mmc: wake IRQ with no resume: -13

The wakeirq stays in /proc-interrupts

rebinding shows this:
[ 289.795959] genirq: Flags mismatch irq 112. 0000200a (480b4000.mmc:wakeup) vs. 0000200a (480b4000.mmc:wakeup)
[ 289.808959] omap_hsmmc 480b4000.mmc: Unable to request wake IRQ
[ 289.815338] omap_hsmmc 480b4000.mmc: no SDIO IRQ support, falling back to polling

That bug seems to be introduced by switching from devm_request_irq()
to generic wakeirq handling.

So let us cleanup at removal.

Signed-off-by: Andreas Kemnade <[email protected]>
Fixes: 5b83b2234be6 ("mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq")
---
drivers/mmc/host/omap_hsmmc.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 071693ebfe18..68760d4a5d3d 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2177,6 +2177,7 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
dma_release_channel(host->tx_chan);
dma_release_channel(host->rx_chan);

+ dev_pm_clear_wake_irq(host->dev);
pm_runtime_dont_use_autosuspend(host->dev);
pm_runtime_put_sync(host->dev);
pm_runtime_disable(host->dev);
--
2.11.0



2018-09-04 14:36:46

by Ulf Hansson

[permalink] [raw]
Subject: Re: [PATCH] mmc: omap_hsmmc: fix wakeirq handling on removal

On 2 September 2018 at 09:30, Andreas Kemnade <[email protected]> wrote:
> after unbinding mmc I get things like this:
> [ 185.294067] mmc1: card 0001 removed
> [ 185.305206] omap_hsmmc 480b4000.mmc: wake IRQ with no resume: -13
>
> The wakeirq stays in /proc-interrupts
>
> rebinding shows this:
> [ 289.795959] genirq: Flags mismatch irq 112. 0000200a (480b4000.mmc:wakeup) vs. 0000200a (480b4000.mmc:wakeup)
> [ 289.808959] omap_hsmmc 480b4000.mmc: Unable to request wake IRQ
> [ 289.815338] omap_hsmmc 480b4000.mmc: no SDIO IRQ support, falling back to polling
>
> That bug seems to be introduced by switching from devm_request_irq()
> to generic wakeirq handling.
>
> So let us cleanup at removal.
>
> Signed-off-by: Andreas Kemnade <[email protected]>
> Fixes: 5b83b2234be6 ("mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq")

Applied for fixes, and added a stable tag, thanks!

Kind regards
Uffe

> ---
> drivers/mmc/host/omap_hsmmc.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
> index 071693ebfe18..68760d4a5d3d 100644
> --- a/drivers/mmc/host/omap_hsmmc.c
> +++ b/drivers/mmc/host/omap_hsmmc.c
> @@ -2177,6 +2177,7 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
> dma_release_channel(host->tx_chan);
> dma_release_channel(host->rx_chan);
>
> + dev_pm_clear_wake_irq(host->dev);
> pm_runtime_dont_use_autosuspend(host->dev);
> pm_runtime_put_sync(host->dev);
> pm_runtime_disable(host->dev);
> --
> 2.11.0
>

2018-09-04 15:39:59

by Tony Lindgren

[permalink] [raw]
Subject: Re: [PATCH] mmc: omap_hsmmc: fix wakeirq handling on removal

* Ulf Hansson <[email protected]> [180904 14:39]:
> On 2 September 2018 at 09:30, Andreas Kemnade <[email protected]> wrote:
> > after unbinding mmc I get things like this:
> > [ 185.294067] mmc1: card 0001 removed
> > [ 185.305206] omap_hsmmc 480b4000.mmc: wake IRQ with no resume: -13
> >
> > The wakeirq stays in /proc-interrupts
> >
> > rebinding shows this:
> > [ 289.795959] genirq: Flags mismatch irq 112. 0000200a (480b4000.mmc:wakeup) vs. 0000200a (480b4000.mmc:wakeup)
> > [ 289.808959] omap_hsmmc 480b4000.mmc: Unable to request wake IRQ
> > [ 289.815338] omap_hsmmc 480b4000.mmc: no SDIO IRQ support, falling back to polling
> >
> > That bug seems to be introduced by switching from devm_request_irq()
> > to generic wakeirq handling.
> >
> > So let us cleanup at removal.
> >
> > Signed-off-by: Andreas Kemnade <[email protected]>
> > Fixes: 5b83b2234be6 ("mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq")

Ooops sorry about that.

> Applied for fixes, and added a stable tag, thanks!

OK and thanks for fixing this Andreas!

Regards,

Tony

2018-09-04 20:12:44

by Andreas Kemnade

[permalink] [raw]
Subject: Re: [PATCH] mmc: omap_hsmmc: fix wakeirq handling on removal

Hi,

On Tue, 4 Sep 2018 16:34:56 +0200
Ulf Hansson <[email protected]> wrote:

> On 2 September 2018 at 09:30, Andreas Kemnade <[email protected]> wrote:
> > after unbinding mmc I get things like this:
> > [ 185.294067] mmc1: card 0001 removed
> > [ 185.305206] omap_hsmmc 480b4000.mmc: wake IRQ with no resume: -13
> >
> > The wakeirq stays in /proc-interrupts
> >
> > rebinding shows this:
> > [ 289.795959] genirq: Flags mismatch irq 112. 0000200a (480b4000.mmc:wakeup) vs. 0000200a (480b4000.mmc:wakeup)
> > [ 289.808959] omap_hsmmc 480b4000.mmc: Unable to request wake IRQ
> > [ 289.815338] omap_hsmmc 480b4000.mmc: no SDIO IRQ support, falling back to polling
> >
> > That bug seems to be introduced by switching from devm_request_irq()
> > to generic wakeirq handling.
> >
> > So let us cleanup at removal.
> >
> > Signed-off-by: Andreas Kemnade <[email protected]>
> > Fixes: 5b83b2234be6 ("mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq")
>
> Applied for fixes, and added a stable tag, thanks!
>
What also might be critical (still analyzing) of that patch I am fixing
is:
It keeps the wakeup irq also enabled when the sdio irq is disabled.

Regards,
Andreas


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