fixup! platform/apple: Add new Apple Mac SMC driver

Signed-off-by: Janne Grunau <j@jannau.net>

Author: jannau

include/linux/mfd/macsmc.h

@@ -13,6 +13,8 @@ typedef u32 smc_key;
 
 #define SMC_KEY(s) (smc_key)(_SMC_KEY(#s))
 #define _SMC_KEY(s) (((s)[0] << 24) | ((s)[1] << 16) | ((s)[2] << 8) | (s)[3])
+#define __SMC_KEY(a, b, c, d) (((u32)(a) << 24) | ((u32)(b) << 16) | \
+                               ((u32)(c) <<  8) |  (u32)(d))
 
 #define APPLE_SMC_READABLE BIT(7)
 #define APPLE_SMC_WRITABLE BIT(6)