ARM: mxs: add mxs-sgtl5000 device

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>

arch/arm/mach-mxs/mach-mx28evk.c

@@ -424,6 +424,9 @@ static void __init mx28evk_init(void)
 	i2c_register_board_info(0, mxs_i2c0_board_info,
 				ARRAY_SIZE(mxs_i2c0_board_info));
 
+	mxs_add_platform_device("mxs-sgtl5000", 0, NULL, 0,
+			NULL, 0);
+
 	/* power on mmc slot by writing 0 to the gpio */
 	ret = gpio_request_one(MX28EVK_MMC0_SLOT_POWER, GPIOF_OUT_INIT_LOW,
 			       "mmc0-slot-power");