diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0463-mmc-sdhci-Mask-spurious-interrupts.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0463-mmc-sdhci-Mask-spurious-interrupts.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0463-mmc-sdhci-Mask-spurious-interrupts.patch b/target/linux/bcm27xx/patches-4.19/950-0463-mmc-sdhci-Mask-spurious-interrupts.patch new file mode 100644 index 0000000000..fd5cb5277c --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0463-mmc-sdhci-Mask-spurious-interrupts.patch @@ -0,0 +1,29 @@ +From be309b7db77215610d5ac15bf0aacd47ea5b3433 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +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 <phil@raspberrypi.org> +--- + drivers/mmc/host/sdhci.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/mmc/host/sdhci.c ++++ b/drivers/mmc/host/sdhci.c +@@ -2935,6 +2935,10 @@ static irqreturn_t sdhci_irq(int irq, vo + 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); + |