From: Peter Chen <peter.chen@nxp.com>
Date: Tue, 28 Jul 2020 06:12:11 +0000 (+0800)
Subject: usb: chipidea: imx: get available runtime dr mode for wakeup setting
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d6f93d21001e4388a25b0b922e02e64bc6004d2f;p=linux.git

usb: chipidea: imx: get available runtime dr mode for wakeup setting

If runtime dr_mode is not dual-role, it doesn't need to enable ID
wakeup interrupt.
If runtime dr_mode is host, it doesn't need to enable VBUS
wakeup interrupt.
With these changes, the user will not get the unexpected wakeup
for single role use case. For example, the host-only use case at
Micro-AB port, the controller should not be waken up by only
plug in Micro-AB cable or the Micro-B cable with host.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
---

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 5ae16368a0c75..c39e2b615ac6d 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -462,6 +462,10 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 		if (!IS_ERR(pdata.vbus_extcon.edev) ||
 		    of_property_read_bool(np, "usb-role-switch"))
 			data->usbmisc_data->ext_vbus = 1;
+
+		/* usbmisc needs to know dr mode to choose wakeup setting */
+		data->usbmisc_data->available_role =
+			ci_hdrc_query_available_role(data->ci_pdev);
 	}
 
 	ret = imx_usbmisc_init_post(data->usbmisc_data);
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h b/drivers/usb/chipidea/ci_hdrc_imx.h
index 727d02b6dbd31..99f846119c004 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.h
+++ b/drivers/usb/chipidea/ci_hdrc_imx.h
@@ -25,6 +25,7 @@ struct imx_usbmisc_data {
 	unsigned int ext_id:1; /* ID from exteranl event */
 	unsigned int ext_vbus:1; /* Vbus from exteranl event */
 	struct usb_phy *usb_phy;
+	enum usb_dr_mode available_role; /* runtime usb dr mode */
 };
 
 int imx_usbmisc_init(struct imx_usbmisc_data *data);
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index f136876cb4a30..ae8f0f37e7999 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -367,10 +367,10 @@ static u32 usbmisc_wakeup_setting(struct imx_usbmisc_data *data)
 {
 	u32 wakeup_setting = MX6_USB_OTG_WAKEUP_BITS;
 
-	if (data->ext_id)
+	if (data->ext_id || data->available_role != USB_DR_MODE_OTG)
 		wakeup_setting &= ~MX6_BM_ID_WAKEUP;
 
-	if (data->ext_vbus)
+	if (data->ext_vbus || data->available_role == USB_DR_MODE_HOST)
 		wakeup_setting &= ~MX6_BM_VBUS_WAKEUP;
 
 	return wakeup_setting;