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Message-Id: <20180924113110.076833416@linuxfoundation.org>
Date: Mon, 24 Sep 2018 13:52:18 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Andreas Kemnade <andreas@...nade.info>,
Ulf Hansson <ulf.hansson@...aro.org>
Subject: [PATCH 4.9 051/111] mmc: omap_hsmmc: fix wakeirq handling on removal
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Andreas Kemnade <andreas@...nade.info>
commit 3c398f3c3bef21961eaaeb93227fa66d440dc83d upstream.
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@...nade.info>
Fixes: 5b83b2234be6 ("mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq")
Cc: stable@...r.kernel.org # v4.2+
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/mmc/host/omap_hsmmc.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2215,6 +2215,7 @@ static int omap_hsmmc_remove(struct plat
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);
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