From b6712b72d1273e792ee8a533048ba731a3709163 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Fri, 13 Oct 2017 17:10:44 +0800 Subject: [PATCH 110/224] usb: mtu3: get optional vbus for host only mode When dr_mode is set as USB_DR_MODE_HOST, it's better to try to get optional vbus, this can increase flexibility, although we can set vbus as always on for regulator or put it in host driver to turn it on. Signed-off-by: Chunfeng Yun Signed-off-by: Felipe Balbi --- drivers/usb/mtu3/mtu3_plat.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c index 1e473b068650..7ca81f4e78a3 100644 --- a/drivers/usb/mtu3/mtu3_plat.c +++ b/drivers/usb/mtu3/mtu3_plat.c @@ -300,10 +300,6 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) of_property_read_u32(node, "mediatek,u3p-dis-msk", &ssusb->u3p_dis_msk); - if (ssusb->dr_mode != USB_DR_MODE_OTG) - return 0; - - /* if dual-role mode is supported */ vbus = devm_regulator_get(&pdev->dev, "vbus"); if (IS_ERR(vbus)) { dev_err(dev, "failed to get vbus\n"); @@ -311,6 +307,10 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) } otg_sx->vbus = vbus; + if (ssusb->dr_mode == USB_DR_MODE_HOST) + return 0; + + /* if dual-role mode is supported */ otg_sx->is_u3_drd = of_property_read_bool(node, "mediatek,usb3-drd"); otg_sx->manual_drd_enabled = of_property_read_bool(node, "enable-manual-drd"); -- 2.11.0