mmc: Add mmc_is_io_op helper function

Add a helper function to check if an opcode is a sd-io-rw-* opcode.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/core/sdio_ops.h

@@ -12,6 +12,8 @@
 #ifndef _MMC_SDIO_OPS_H
 #define _MMC_SDIO_OPS_H
 
+#include <linux/mmc/sdio.h>
+
 int mmc_send_io_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
 int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
 	unsigned addr, u8 in, u8* out);
@@ -19,5 +21,10 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
 	unsigned addr, int incr_addr, u8 *buf, unsigned blocks, unsigned blksz);
 int sdio_reset(struct mmc_host *host);
 
+static inline bool mmc_is_io_op(u32 opcode)
+{
+	return opcode == SD_IO_RW_DIRECT || opcode == SD_IO_RW_EXTENDED;
+}
+
 #endif