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

[Ulf Hansson]

On 2 September 2018 at 09:30, Andreas Kemnade <andreas@xxxxxxxxxxxx> 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 <andreas@xxxxxxxxxxxx>
> 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
>