diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 7 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 2 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index cd6dab34ba54..3a72fe2cf1cf 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -134,6 +134,7 @@ static void sdhci_disable_card_detection(struct sdhci_host *host) static void sdhci_reset(struct sdhci_host *host, u8 mask) { unsigned long timeout; + u32 uninitialized_var(ier); if (host->quirks & SDHCI_QUIRK_NO_CARD_NO_RESET) { if (!(sdhci_readl(host, SDHCI_PRESENT_STATE) & @@ -141,6 +142,9 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask) return; } + if (host->quirks & SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET) + ier = sdhci_readl(host, SDHCI_INT_ENABLE); + sdhci_writeb(host, mask, SDHCI_SOFTWARE_RESET); if (mask & SDHCI_RESET_ALL) @@ -160,6 +164,9 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask) timeout--; mdelay(1); } + + if (host->quirks & SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET) + sdhci_clear_set_irqs(host, SDHCI_INT_ALL_MASK, ier); } static void sdhci_init(struct sdhci_host *host) diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index c5ce9ee1a1bc..2962102b6953 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -222,6 +222,8 @@ struct sdhci_host { #define SDHCI_QUIRK_NONSTANDARD_CLOCK (1<<17) /* Controller does not like fast PIO transfers */ #define SDHCI_QUIRK_PIO_NEEDS_DELAY (1<<18) +/* Controller losing signal/interrupt enable states after reset */ +#define SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET (1<<19) int irq; /* Device IRQ */ void __iomem * ioaddr; /* Mapped address */ |