diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 80cc7847c53..8262cadfdab 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2267,8 +2267,8 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) { irqreturn_t result; struct sdhci_host *host = dev_id; - u32 intmask; - int cardint = 0; + u32 intmask, unexpected = 0; + int cardint = 0, max_loops = 16; spin_lock(&host->lock); @@ -2286,6 +2286,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) goto out; } +again: DBG("*** %s got interrupt: 0x%08x\n", mmc_hostname(host->mmc), intmask); @@ -2344,19 +2345,23 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) intmask &= ~SDHCI_INT_CARD_INT; if (intmask) { - pr_err("%s: Unexpected interrupt 0x%08x.\n", - mmc_hostname(host->mmc), intmask); - sdhci_dumpregs(host); - + unexpected |= intmask; sdhci_writel(host, intmask, SDHCI_INT_STATUS); } result = IRQ_HANDLED; - mmiowb(); + intmask = sdhci_readl(host, SDHCI_INT_STATUS); + if (intmask && --max_loops) + goto again; out: spin_unlock(&host->lock); + if (unexpected) { + pr_err("%s: Unexpected interrupt 0x%08x.\n", + mmc_hostname(host->mmc), unexpected); + sdhci_dumpregs(host); + } /* * We have to delay this as it calls back into the driver. */ |