mfd: rave-sp: Add legacy EEPROM access command translation

This is needed to make rave-sp-eeprom driver work on "legacy"
firmware.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/rave-sp.c

@@ -635,6 +635,8 @@ static int rave_sp_default_cmd_translate(enum rave_sp_command command)
 		return 0x1E;
 	case RAVE_SP_CMD_RESET_REASON:
 		return 0x1F;
+	case RAVE_SP_CMD_RMB_EEPROM:
+		return 0x20;
 	default:
 		return -EINVAL;
 	}

include/linux/mfd/rave-sp.h

@@ -21,6 +21,7 @@ enum rave_sp_command {
 	RAVE_SP_CMD_STATUS			= 0xA0,
 	RAVE_SP_CMD_SW_WDT			= 0xA1,
 	RAVE_SP_CMD_PET_WDT			= 0xA2,
+	RAVE_SP_CMD_RMB_EEPROM			= 0xA4,
 	RAVE_SP_CMD_SET_BACKLIGHT		= 0xA6,
 	RAVE_SP_CMD_RESET			= 0xA7,
 	RAVE_SP_CMD_RESET_REASON		= 0xA8,