Blackfin: bf537-stamp: ad1938: switch to GPIO CS

Signed-off-by: NBarry Song <barry.song@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

arch/blackfin/mach-bf537/boards/stamp.c

@@ -528,7 +528,6 @@ static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
 static struct bfin5xx_spi_chip ad1938_spi_chip_info = {
 	.enable_dma = 0,
 	.bits_per_word = 8,
-	.cs_gpio = GPIO_PF5,
 };
 #endif
 
@@ -910,7 +909,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 		.modalias = "ad1938",
 		.max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num = 0,
-		.chip_select = 0,/* CONFIG_SND_BLACKFIN_SPI_PFBIT */
+		.chip_select = 5,
 		.controller_data = &ad1938_spi_chip_info,
 		.mode = SPI_MODE_3,
 	},