mmc: sdhci: add card_event callback to sdhci

Add a card_event callback to sdhci so that clients can provide their
own card_event to be called when card_detect is triggered.

Signed-off-by: Christian Daudt <csd@broadcom.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 3ad3973bdb33398ed0e3b7dd3099da9acc5c920e..a78bd4f3aeccba6615fb71bbdcde4d283b89ba29 100644 (file)
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2062,6 +2062,10 @@ static void sdhci_card_event(struct mmc_host *mmc)
        struct sdhci_host *host = mmc_priv(mmc);
        unsigned long flags;
 
+       /* First check if client has provided their own card event */
+       if (host->ops->card_event)
+               host->ops->card_event(host);
+
        spin_lock_irqsave(&host->lock, flags);
 
        /* Check host->mrq first in case we are runtime suspended */

diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 379e09d9f3c1c1344ebfd7f91da37f7861b7c707..b037f188fe44b26c357b77ebe985f8406aa4c1ac 100644 (file)
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -294,6 +294,7 @@ struct sdhci_ops {
        void    (*platform_resume)(struct sdhci_host *host);
        void    (*adma_workaround)(struct sdhci_host *host, u32 intmask);
        void    (*platform_init)(struct sdhci_host *host);
+       void    (*card_event)(struct sdhci_host *host);
 };
 
 #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS