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34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
From 39afbd02cb63d932d495e91f68800efd59d620af Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Fri, 28 Sep 2018 16:24:05 +0100
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Subject: [PATCH 545/678] mmc: sdhci: Mask "spurious" interrupts
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Add a filter for "spurious" Transfer Complete interrupts, attempting
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to make it as specific as possible:
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* INT_DATA_END (transfer complete) is set
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* There is a stop command in progress
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* There is no data transfer in progress
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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drivers/mmc/host/sdhci.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
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index c749d3dc1d36..bb753ba947d8 100644
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--- a/drivers/mmc/host/sdhci.c
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+++ b/drivers/mmc/host/sdhci.c
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@@ -2930,6 +2930,10 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)
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result = IRQ_WAKE_THREAD;
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}
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+ if ((intmask & SDHCI_INT_DATA_END) && !host->data &&
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+ host->cmd && (host->cmd == host->cmd->mrq->stop))
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+ intmask &= ~SDHCI_INT_DATA_END;
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+
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if (intmask & SDHCI_INT_CMD_MASK)
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sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, &intmask);
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--
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2.19.1
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