We don't need to change the SDHCI_SDIO_IRQ_ENABLED flag when we're
merely receiving an interrupt - IRQ handling thread in the MMC core
will either re-enable or disable the interrupt via the enable_sdio_irq
callback, which will update this status appropriately.
Signed-off-by: Russell King <rmk+ker...@arm.linux.org.uk>
---
drivers/mmc/host/sdhci.c | 35 +++++++++++++++++------------------
1 file changed, 17 insertions(+), 18 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 79838de6b278..239d90d77ac4 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1709,24 +1709,14 @@ static int sdhci_get_ro(struct mmc_host *mmc)
static void sdhci_enable_sdio_irq_nolock(struct sdhci_host *host, int enable)
{
- if (host->flags & SDHCI_DEVICE_DEAD)
- goto out;
-
- if (enable)
- host->flags |= SDHCI_SDIO_IRQ_ENABLED;
- else
- host->flags &= ~SDHCI_SDIO_IRQ_ENABLED;
-
/* SDIO IRQ will be enabled as appropriate in runtime resume */
- if (host->runtime_suspended)
- goto out;
-
- if (enable)
- sdhci_unmask_irqs(host, SDHCI_INT_CARD_INT);
- else
- sdhci_mask_irqs(host, SDHCI_INT_CARD_INT);
-out:
- mmiowb();
+ if (!(host->flags & SDHCI_DEVICE_DEAD) || host->runtime_suspended) {
+ if (enable)
+ sdhci_unmask_irqs(host, SDHCI_INT_CARD_INT);
+ else
+ sdhci_mask_irqs(host, SDHCI_INT_CARD_INT);
+ mmiowb();
+ }
}
static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
@@ -1734,9 +1724,18 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc,
int enable)
struct sdhci_host *host = mmc_priv(mmc);
unsigned long flags;
+ sdhci_runtime_pm_get(host);
+
spin_lock_irqsave(&host->lock, flags);
+ if (enable)
+ host->flags |= SDHCI_SDIO_IRQ_ENABLED;
+ else
+ host->flags &= ~SDHCI_SDIO_IRQ_ENABLED;
+
sdhci_enable_sdio_irq_nolock(host, enable);
spin_unlock_irqrestore(&host->lock, flags);
+
+ sdhci_runtime_pm_put(host);
}
static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host,
@@ -2721,7 +2720,7 @@ int sdhci_runtime_resume_host(struct sdhci_host *host)
host->runtime_suspended = false;
/* Enable SDIO IRQ */
- if ((host->flags & SDHCI_SDIO_IRQ_ENABLED))
+ if (host->flags & SDHCI_SDIO_IRQ_ENABLED)
sdhci_enable_sdio_irq_nolock(host, true);
/* Enable Card Detection */
--
1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
