mmc: Add mmc_vddrange_to_ocrmask() helper function
This function sets the OCR mask bits according to provided voltage
ranges. Will be used by the mmc_spi OpenFirmware bindings.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 143cebf..7ac8b50 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -151,4 +151,6 @@
__mmc_claim_host(host, NULL);
}
+extern u32 mmc_vddrange_to_ocrmask(int vdd_min, int vdd_max);
+
#endif