linux-kernel - [Patch V3 11/18] usb: gadget: tegra-xudc: use phy_set

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Date:   Mon, 30 Dec 2019 16:39:48 +0530
From:   Nagarjuna Kristam <nkristam@...dia.com>
To:     <balbi@...nel.org>, <gregkh@...uxfoundation.org>,
        <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <mark.rutland@....com>, <robh+dt@...nel.org>, <kishon@...com>
CC:     <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Nagarjuna Kristam <nkristam@...dia.com>
Subject: [Patch V3 11/18] usb: gadget: tegra-xudc: use phy_set_mode to set/unset device mode

When device mode is set/uset, vbus override activity is done via
exported functions from padctl driver. Use phy_set_mode instead.

Signed-off-by: Nagarjuna Kristam <nkristam@...dia.com>
---
V2-V3:
 - No changes in this version
---
 drivers/usb/gadget/udc/tegra-xudc.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/gadget/udc/tegra-xudc.c b/drivers/usb/gadget/udc/tegra-xudc.c
index 0f27d57..283c320 100644
--- a/drivers/usb/gadget/udc/tegra-xudc.c
+++ b/drivers/usb/gadget/udc/tegra-xudc.c
@@ -615,7 +615,7 @@ static void tegra_xudc_device_mode_on(struct tegra_xudc *xudc)
 
 	dev_dbg(xudc->dev, "device mode on\n");
 
-	tegra_xusb_padctl_set_vbus_override(xudc->padctl, true);
+	phy_set_mode_ext(xudc->utmi_phy, PHY_MODE_USB_OTG, USB_ROLE_DEVICE);
 
 	xudc->device_mode = true;
 
@@ -636,7 +636,7 @@ static void tegra_xudc_device_mode_off(struct tegra_xudc *xudc)
 
 	reinit_completion(&xudc->disconnect_complete);
 
-	tegra_xusb_padctl_set_vbus_override(xudc->padctl, false);
+	phy_set_mode_ext(xudc->utmi_phy, PHY_MODE_USB_OTG, USB_ROLE_NONE);
 
 	pls = (xudc_readl(xudc, PORTSC) & PORTSC_PLS_MASK) >>
 		PORTSC_PLS_SHIFT;
@@ -716,9 +716,11 @@ static void tegra_xudc_plc_reset_work(struct work_struct *work)
 
 		if (pls == PORTSC_PLS_INACTIVE) {
 			dev_info(xudc->dev, "PLS = Inactive. Toggle VBUS\n");
-			tegra_xusb_padctl_set_vbus_override(xudc->padctl,
-							      false);
-			tegra_xusb_padctl_set_vbus_override(xudc->padctl, true);
+			phy_set_mode_ext(xudc->utmi_phy, PHY_MODE_USB_OTG,
+					 USB_ROLE_NONE);
+			phy_set_mode_ext(xudc->utmi_phy, PHY_MODE_USB_OTG,
+					 USB_ROLE_DEVICE);
+
 			xudc->wait_csc = false;
 		}
 	}
-- 
2.7.4