sdio: add interface for host side SDIO interrupt reporting

Signed-off-by: Nicolas Pitre <npitre@mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 00dc1809494c..3fd197962f73 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -51,6 +51,7 @@ struct mmc_host_ops {
         void    (*request)(struct mmc_host *host, struct mmc_request *req);
         void    (*set_ios)(struct mmc_host *host, struct mmc_ios *ios);
         int     (*get_ro)(struct mmc_host *host);
+        void    (*enable_sdio_irq)(struct mmc_host *host, int enable);
 };
 
 struct mmc_card;
@@ -89,6 +90,7 @@ struct mmc_host {
 #define MMC_CAP_MULTIWRITE      (1 << 1)        /* Can accurately report bytes sent to card on error */
 #define MMC_CAP_MMC_HIGHSPEED   (1 << 2)        /* Can do MMC high-speed timing */
 #define MMC_CAP_SD_HIGHSPEED    (1 << 3)        /* Can do SD high-speed timing */
+#define MMC_CAP_SDIO_IRQ        (1 << 4)        /* Can signal pending SDIO IRQs */
 
         /* host specific block data */
         unsigned int            max_seg_size;   /* see blk_queue_max_segment_size */
@@ -150,5 +152,11 @@ extern int mmc_resume_host(struct mmc_host *);
 extern void mmc_detect_change(struct mmc_host *, unsigned long delay);
 extern void mmc_request_done(struct mmc_host *, struct mmc_request *);
 
+static inline void mmc_signal_sdio_irq(struct mmc_host *host)
+{
+        host->ops->enable_sdio_irq(host, 0);
+        wake_up_process(host->sdio_irq_thread);
+}
+
 #endif