2019-09-19 14:43:19 +00:00
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From be309b7db77215610d5ac15bf0aacd47ea5b3433 Mon Sep 17 00:00:00 2001
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2019-07-09 18:32:28 +00:00
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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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2019-09-19 14:43:19 +00:00
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Subject: [PATCH 534/806] mmc: sdhci: Mask "spurious" interrupts
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2019-07-09 18:32:28 +00:00
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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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--- 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, vo
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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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