1 files changed, 33 insertions, 0 deletions

diff --git a/include/linux/spi/mmc_spi.h b/include/linux/spi/mmc_spi.h
new file mode 100644
index 000000000000..e9bbe3ebd721
--- /dev/null
+++ b/include/linux/spi/mmc_spi.h
@@ -0,0 +1,33 @@
+#ifndef __LINUX_SPI_MMC_SPI_H
+#define __LINUX_SPI_MMC_SPI_H
+
+struct device;
+struct mmc_host;
+
+/* Put this in platform_data of a device being used to manage an MMC/SD
+ * card slot.  (Modeled after PXA mmc glue; see that for usage examples.)
+ *
+ * REVISIT This is not a spi-specific notion.  Any card slot should be
+ * able to handle it.  If the MMC core doesn't adopt this kind of notion,
+ * switch the "struct device *" parameters over to "struct spi_device *".
+ */
+struct mmc_spi_platform_data {
+        /* driver activation and (optional) card detect irq hookup */
+        int (*init)(struct device *,
+                irqreturn_t (*)(int, void *),
+                void *);
+        void (*exit)(struct device *, void *);
+
+        /* sense switch on sd cards */
+        int (*get_ro)(struct device *);
+
+        /* how long to debounce card detect, in msecs */
+        u16 detect_delay;
+
+        /* power management */
+        u16 powerup_msecs;              /* delay of up to 250 msec */
+        u32 ocr_mask;                   /* available voltages */
+        void (*setpower)(struct device *, unsigned int maskval);
+};
+
+#endif /* __LINUX_SPI_MMC_SPI_H */