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