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phy: tegra: xusb: Support USB role default mode

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Support role-switch-default-mode property when usb-role-switch is
enabled.

Signed-off-by: Haotien Hsu <haotienh@nvidia.com>
Link: https://lore.kernel.org/r/20221216042146.99307-1-haotienh@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Haotien Hsu
2022-12-16 12:21:46 +08:00
committed by Vinod Koul
parent 724dbe3c2f
commit 3cde1ef6f8
1 changed files with 17 additions and 0 deletions
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17
drivers/phy/tegra/xusb.c
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@ -718,6 +718,22 @@ static int tegra_xusb_setup_usb_role_switch(struct tegra_xusb_port *port)
return err; return err;
} }
static void tegra_xusb_parse_usb_role_default_mode(struct tegra_xusb_port *port)
{
enum usb_role role = USB_ROLE_NONE;
enum usb_dr_mode mode = usb_get_role_switch_default_mode(&port->dev);
if (mode == USB_DR_MODE_HOST)
role = USB_ROLE_HOST;
else if (mode == USB_DR_MODE_PERIPHERAL)
role = USB_ROLE_DEVICE;
if (role != USB_ROLE_NONE) {
usb_role_switch_set_role(port->usb_role_sw, role);
dev_dbg(&port->dev, "usb role default mode is %s", modes[mode]);
}
}
static int tegra_xusb_usb2_port_parse_dt(struct tegra_xusb_usb2_port *usb2) static int tegra_xusb_usb2_port_parse_dt(struct tegra_xusb_usb2_port *usb2)
{ {
struct tegra_xusb_port *port = &usb2->base; struct tegra_xusb_port *port = &usb2->base;
@ -747,6 +763,7 @@ static int tegra_xusb_usb2_port_parse_dt(struct tegra_xusb_usb2_port *usb2)
err = tegra_xusb_setup_usb_role_switch(port); err = tegra_xusb_setup_usb_role_switch(port);
if (err < 0) if (err < 0)
return err; return err;
tegra_xusb_parse_usb_role_default_mode(port);
} else { } else {
dev_err(&port->dev, "usb-role-switch not found for %s mode", dev_err(&port->dev, "usb-role-switch not found for %s mode",
modes[usb2->mode]); modes[usb2->mode]);