mmc: dw_mmc: add support for implementation specific callbacks

[profile/ivi/kernel-adaptation-intel-automotive.git] / drivers / mmc / host / dw_mmc.h

diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 15c27e1..53b8fd9 100644 (file)
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -182,4 +182,28 @@ extern int dw_mci_suspend(struct dw_mci *host);
 extern int dw_mci_resume(struct dw_mci *host);
 #endif
 
+/**
+ * dw_mci driver data - dw-mshc implementation specific driver data.
+ * @caps: mmc subsystem specified capabilities of the controller(s).
+ * @init: early implementation specific initialization.
+ * @setup_clock: implementation specific clock configuration.
+ * @prepare_command: handle CMD register extensions.
+ * @set_ios: handle bus specific extensions.
+ * @parse_dt: parse implementation specific device tree properties.
+ * @setup_bus: initialize io-interface
+ *
+ * Provide controller implementation specific extensions. The usage of this
+ * data structure is fully optional and usage of each member in this structure
+ * is optional as well.
+ */
+struct dw_mci_drv_data {
+       unsigned long   *caps;
+       int             (*init)(struct dw_mci *host);
+       int             (*setup_clock)(struct dw_mci *host);
+       void            (*prepare_command)(struct dw_mci *host, u32 *cmdr);
+       void            (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
+       int             (*parse_dt)(struct dw_mci *host);
+       int             (*setup_bus)(struct dw_mci *host,
+                               struct device_node *slot_np, u8 bus_width);
+};
 #endif /* _DW_MMC_H_ */