[PATCH v2] usb: renesas_usbhs: gadget: add usb_gadget_ops :: pullup support

[Kuninori Morimoto]

This patch adds usbhs_sys_function_pullup() to control
D+ line for USB function, and enabled pullup support on mod_gadget.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto...@renesas.com>
---
v1 -> v2

 - add explain on log

 drivers/usb/renesas_usbhs/common.c     |    5 +++++
 drivers/usb/renesas_usbhs/common.h     |    1 +
 drivers/usb/renesas_usbhs/mod_gadget.c |   11 +++++++++++
 3 files changed, 17 insertions(+)

diff --git a/drivers/usb/renesas_usbhs/common.c 
b/drivers/usb/renesas_usbhs/common.c
index 072edc1..3bf922ab 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -132,6 +132,11 @@ void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int 
enable)
        usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);
 }
 
+void usbhs_sys_function_pullup(struct usbhs_priv *priv, int enable)
+{
+       usbhs_bset(priv, SYSCFG, DPRPU, enable ? DPRPU : 0);
+}
+
 void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode)
 {
        usbhs_write(priv, TESTMODE, mode);
diff --git a/drivers/usb/renesas_usbhs/common.h 
b/drivers/usb/renesas_usbhs/common.h
index dddf40a..c69dd2f 100644
--- a/drivers/usb/renesas_usbhs/common.h
+++ b/drivers/usb/renesas_usbhs/common.h
@@ -285,6 +285,7 @@ void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, 
u16 data);
  */
 void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable);
 void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable);
+void usbhs_sys_function_pullup(struct usbhs_priv *priv, int enable);
 void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode);
 
 /*
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c 
b/drivers/usb/renesas_usbhs/mod_gadget.c
index 28478ce..dd41f61 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -883,6 +883,16 @@ static int usbhsg_get_frame(struct usb_gadget *gadget)
        return usbhs_frame_get_num(priv);
 }
 
+static int usbhsg_pullup(struct usb_gadget *gadget, int is_on)
+{
+       struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
+       struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+
+       usbhs_sys_function_pullup(priv, is_on);
+
+       return 0;
+}
+
 static int usbhsg_set_selfpowered(struct usb_gadget *gadget, int is_self)
 {
        struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
@@ -900,6 +910,7 @@ static struct usb_gadget_ops usbhsg_gadget_ops = {
        .set_selfpowered        = usbhsg_set_selfpowered,
        .udc_start              = usbhsg_gadget_start,
        .udc_stop               = usbhsg_gadget_stop,
+       .pullup                 = usbhsg_pullup,
 };
 
 static int usbhsg_start(struct usbhs_priv *priv)
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html