usb: gadget: renesas_usbhs: change usbhsc_bus_ctrl() to usbsc_set_buswait()

renesas_usbhs will have register DVSTCTR control function for HOST support.
This patch changes usbhsc_bus_ctrl() to usbsc_set_buswait(),
to remove DVSTCTR access from it,

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 319ed47..fd43fdd 100644 (file)
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -149,17 +149,13 @@ int usbhs_frame_get_num(struct usbhs_priv *priv)
 /*
  *             local functions
  */
-static void usbhsc_bus_ctrl(struct usbhs_priv *priv, int enable)
+static void usbhsc_set_buswait(struct usbhs_priv *priv)
 {
        int wait = usbhs_get_dparam(priv, buswait_bwait);
-       u16 data = 0;
 
-       if (enable) {
-               /* set bus wait if platform have */
-               if (wait)
-                       usbhs_bset(priv, BUSWAIT, 0x000F, wait);
-       }
-       usbhs_write(priv, DVSTCTR, data);
+       /* set bus wait if platform have */
+       if (wait)
+               usbhs_bset(priv, BUSWAIT, 0x000F, wait);
 }
 
 /*
@@ -191,10 +187,9 @@ static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable)
 
                /* USB on */
                usbhs_sys_clock_ctrl(priv, enable);
-               usbhsc_bus_ctrl(priv, enable);
+               usbhsc_set_buswait(priv);
        } else {
                /* USB off */
-               usbhsc_bus_ctrl(priv, enable);
                usbhs_sys_clock_ctrl(priv, enable);
 
                /* disable PM */

diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index 8977431..959af02 100644 (file)
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -101,6 +101,8 @@ struct renesas_usbhs_driver_param {
         * option:
         *
         * for BUSWAIT :: BWAIT
+        * see
+        *      renesas_usbhs/common.c :: usbhsc_set_buswait()
         * */
        int buswait_bwait;