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>

2 files changed, 5 insertions, 0 deletions

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 3ad3973bdb33..a78bd4f3aecc 100644
--- 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 379e09d9f3c1..b037f188fe44 100644
--- 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