Commit f926da42 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Greg Kroah-Hartman
Browse files

usb: mtu3: add a function to switch mailbox state to string 



By introducing mailbox_state_string(), allow to make debug
log more readable

Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 83374e03

drivers/usb/mtu3/mtu3_dr.c

+18 −2
Original line number Diff line number Diff line
@@ -21,6 +21,22 @@ enum mtu3_vbus_id_state { 
	MTU3_VBUS_VALID,

};



static char *mailbox_state_string(enum mtu3_vbus_id_state state)

{

	switch (state) {

	case MTU3_ID_FLOAT:

		return "ID_FLOAT";

	case MTU3_ID_GROUND:

		return "ID_GROUND";

	case MTU3_VBUS_OFF:

		return "VBUS_OFF";

	case MTU3_VBUS_VALID:

		return "VBUS_VALID";

	default:

		return "UNKNOWN";

	}

}



static void toggle_opstate(struct ssusb_mtk *ssusb)

{

	if (!ssusb->otg_switch.is_u3_drd) {
@@ -140,8 +156,8 @@ static void ssusb_set_mailbox(struct otg_switch_mtk *otg_sx, 
		container_of(otg_sx, struct ssusb_mtk, otg_switch);

	struct mtu3 *mtu = ssusb->u3d;



	dev_dbg(ssusb->dev, "mailbox state(%d)\n", status);

	mtu3_dbg_trace(ssusb->dev, "mailbox %d", status);

	dev_dbg(ssusb->dev, "mailbox %s\n", mailbox_state_string(status));

	mtu3_dbg_trace(ssusb->dev, "mailbox %s", mailbox_state_string(status));



	switch (status) {

	case MTU3_ID_GROUND: