diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2017-10-13 17:10:44 +0800 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-10-19 10:38:12 +0300 |
| commit | 6638ec515f2cce73ba996a725fe351fd643e27c8 (patch) | |
| tree | ebaf1babd3624fc767a1c1eb4b36a6219e5afdb8 /drivers/usb/mtu3 | |
| parent | 4d79e042ed8b45e01bcec90de6b0c79c6c29d2b5 (diff) | |
| download | lwn-6638ec515f2cce73ba996a725fe351fd643e27c8.tar.gz lwn-6638ec515f2cce73ba996a725fe351fd643e27c8.zip | |
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 <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/mtu3')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_plat.c | 8 |
1 files 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"); |