USB: ULPI: switch argument type from u8 to unsigned

There is no benefit in using u8, so switch to unsigned to reduce the
binary image size (by 20 bytes).

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Simon Glass <sjg@chromium.org>

drivers/usb/ulpi/ulpi.c

@@ -79,9 +79,9 @@ int ulpi_init(u32 ulpi_viewport)
 	return ulpi_integrity_check(ulpi_viewport);
 }
 
-int ulpi_select_transceiver(u32 ulpi_viewport, u8 speed)
+int ulpi_select_transceiver(u32 ulpi_viewport, unsigned speed)
 {
-	u8 tspeed = ULPI_FC_FULL_SPEED;
+	u32 tspeed = ULPI_FC_FULL_SPEED;
 	u32 val;
 
 	switch (speed) {
@@ -127,9 +127,9 @@ int ulpi_set_pd(u32 ulpi_viewport, int enable)
 	return ulpi_write(ulpi_viewport, reg, val);
 }
 
-int ulpi_opmode_sel(u32 ulpi_viewport, u8 opmode)
+int ulpi_opmode_sel(u32 ulpi_viewport, unsigned opmode)
 {
-	u8 topmode = ULPI_FC_OPMODE_NORMAL;
+	u32 topmode = ULPI_FC_OPMODE_NORMAL;
 	u32 val;
 
 	switch (opmode) {
@@ -154,7 +154,7 @@ int ulpi_opmode_sel(u32 ulpi_viewport, u8 opmode)
 	return ulpi_write(ulpi_viewport, &ulpi->function_ctrl, val);
 }
 
-int ulpi_serial_mode_enable(u32 ulpi_viewport, u8 smode)
+int ulpi_serial_mode_enable(u32 ulpi_viewport, unsigned smode)
 {
 	switch (smode) {
 	case ULPI_IFACE_6_PIN_SERIAL_MODE:

include/usb/ulpi.h

@@ -41,7 +41,7 @@ int ulpi_init(u32 ulpi_viewport);
  *                ULPI_FC_LOW_SPEED,  ULPI_FC_FS4LS
  * returns 0 on success, ULPI_ERROR on failure.
  */
-int ulpi_select_transceiver(u32 ulpi_viewport, u8 speed);
+int ulpi_select_transceiver(u32 ulpi_viewport, unsigned speed);
 
 /*
  * Enable/disable VBUS.
@@ -66,7 +66,7 @@ int ulpi_set_pd(u32 ulpi_viewport, int enable);
  *
  * returns 0 on success, ULPI_ERROR on failure.
  */
-int ulpi_opmode_sel(u32 ulpi_viewport, u8 opmode);
+int ulpi_opmode_sel(u32 ulpi_viewport, unsigned opmode);
 
 /*
  * Switch to Serial Mode.
@@ -78,7 +78,7 @@ int ulpi_opmode_sel(u32 ulpi_viewport, u8 opmode);
  * Switches immediately to Serial Mode.
  * To return from Serial Mode, STP line needs to be asserted.
  */
-int ulpi_serial_mode_enable(u32 ulpi_viewport, u8 smode);
+int ulpi_serial_mode_enable(u32 ulpi_viewport, unsigned smode);
 
 /*
  * Put PHY into low power mode.