From 187f40874b37890da6c70f1161278e99c59b8450 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Fri, 28 Sep 2018 16:24:05 +0100 Subject: [PATCH] mmc: sdhci: Mask "spurious" interrupts Add a filter for "spurious" Transfer Complete interrupts, attempting to make it as specific as possible: * INT_DATA_END (transfer complete) is set * There is a stop command in progress * There is no data transfer in progress Signed-off-by: Phil Elwell --- drivers/mmc/host/sdhci.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 50514fe..ad123f0 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -3104,6 +3104,10 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) result = IRQ_WAKE_THREAD; } + if ((intmask & SDHCI_INT_DATA_END) && !host->data && + host->cmd && (host->cmd == host->cmd->mrq->stop)) + intmask &= ~SDHCI_INT_DATA_END; + if (intmask & SDHCI_INT_CMD_MASK) sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, &intmask); -- 2.7.4