staging: wilc1000: remove unneeded function

wilc_spi_init in linux_wlan_spi.c is unneeded. It just return true. Rename
_wilc_spi_init in wlan_spi.c to wilc_spi_init.
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/linux_wlan_spi.c

@@ -61,11 +61,6 @@ struct spi_driver wilc1000_spi_driver = {
 module_spi_driver(wilc1000_spi_driver);
 MODULE_LICENSE("GPL");
 
-int wilc_spi_init(void)
-{
-	return 1;
-}
-
 int wilc_spi_tx(struct wilc *wilc, u8 *b, u32 len)
 {
 	struct spi_device *spi = to_spi_device(wilc->dev);

drivers/staging/wilc1000/linux_wlan_spi.h

@@ -4,7 +4,6 @@
 #include <linux/spi/spi.h>
 #include "wilc_wfi_netdevice.h"
 
-int wilc_spi_init(void);
 int wilc_spi_tx(struct wilc *wilc, u8 *b, u32 len);
 int wilc_spi_rx(struct wilc *wilc, u8 *rb, u32 rlen);
 int wilc_spi_tx_rx(struct wilc *wilc, u8 *wb, u8 *rb, u32 rlen);

drivers/staging/wilc1000/wilc_spi.c

@@ -676,7 +676,7 @@ static int _wilc_spi_deinit(struct wilc *wilc)
 	return 1;
 }
 
-static int _wilc_spi_init(struct wilc *wilc)
+static int wilc_spi_init(struct wilc *wilc)
 {
 	struct spi_device *spi = to_spi_device(wilc->dev);
 	u32 reg;
@@ -695,13 +695,6 @@ static int _wilc_spi_init(struct wilc *wilc)
 
 	memset(&g_spi, 0, sizeof(wilc_spi_t));
 
-	if (!wilc_spi_init()) {
-		dev_err(&spi->dev, "Failed io init bus...\n");
-		return 0;
-	} else {
-		return 0;
-	}
-
 	/**
 	 *      configure protocol
 	 **/
@@ -994,7 +987,7 @@ static int wilc_spi_sync_ext(struct wilc *wilc, int nint)
  *
  ********************************************/
 const struct wilc_hif_func wilc_hif_spi = {
-	.hif_init = _wilc_spi_init,
+	.hif_init = wilc_spi_init,
 	.hif_deinit = _wilc_spi_deinit,
 	.hif_read_reg = wilc_spi_read_reg,
 	.hif_write_reg = wilc_spi_write_reg,