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usb: gadget: tegra-xudc: Add vbus_draw support

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Register vbus_draw to gadget ops and update corresponding vbus
draw current to usb_phy.

Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Nagarjuna Kristam 2020-05-14 11:52:37 +05:30 committed by Felipe Balbi
parent f7ac582eff
commit ac82b56bda
1 changed files with 17 additions and 0 deletions
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17
drivers/usb/gadget/udc/tegra-xudc.c
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@ -492,6 +492,7 @@ struct tegra_xudc {
bool powergated; bool powergated;
struct usb_phy **usbphy; struct usb_phy **usbphy;
struct usb_phy *curr_usbphy;
struct notifier_block vbus_nb; struct notifier_block vbus_nb;
struct completion disconnect_complete; struct completion disconnect_complete;
@ -719,6 +720,7 @@ static int tegra_xudc_vbus_notify(struct notifier_block *nb,
if (!xudc->suspended && phy_index != -1) { if (!xudc->suspended && phy_index != -1) {
xudc->curr_utmi_phy = xudc->utmi_phy[phy_index]; xudc->curr_utmi_phy = xudc->utmi_phy[phy_index];
xudc->curr_usb3_phy = xudc->usb3_phy[phy_index]; xudc->curr_usb3_phy = xudc->usb3_phy[phy_index];
xudc->curr_usbphy = usbphy;
schedule_work(&xudc->usb_role_sw_work); schedule_work(&xudc->usb_role_sw_work);
} }
@ -2042,6 +2044,20 @@ static int tegra_xudc_gadget_stop(struct usb_gadget *gadget)
return 0; return 0;
} }
static int tegra_xudc_gadget_vbus_draw(struct usb_gadget *gadget,
unsigned int m_a)
{
int ret = 0;
struct tegra_xudc *xudc = to_xudc(gadget);
dev_dbg(xudc->dev, "%s: %u mA\n", __func__, m_a);
if (xudc->curr_usbphy->chg_type == SDP_TYPE)
ret = usb_phy_set_power(xudc->curr_usbphy, m_a);
return ret;
}
static int tegra_xudc_set_selfpowered(struct usb_gadget *gadget, int is_on) static int tegra_xudc_set_selfpowered(struct usb_gadget *gadget, int is_on)
{ {
struct tegra_xudc *xudc = to_xudc(gadget); struct tegra_xudc *xudc = to_xudc(gadget);
@ -2058,6 +2074,7 @@ static struct usb_gadget_ops tegra_xudc_gadget_ops = {
.pullup = tegra_xudc_gadget_pullup, .pullup = tegra_xudc_gadget_pullup,
.udc_start = tegra_xudc_gadget_start, .udc_start = tegra_xudc_gadget_start,
.udc_stop = tegra_xudc_gadget_stop, .udc_stop = tegra_xudc_gadget_stop,
.vbus_draw = tegra_xudc_gadget_vbus_draw,
.set_selfpowered = tegra_xudc_set_selfpowered, .set_selfpowered = tegra_xudc_set_selfpowered,
}; };