Together with some musb sunxi glue changes this allows run-time dr_mode
switching support via the "mode" musb sysfs attribute.
Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
drivers/phy/phy-sun4i-usb.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index fb2d4f3..d369081 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -427,6 +427,29 @@ static int sun4i_usb_phy_power_off(struct phy *_phy)
return 0;
}
+static int sun4i_usb_phy_set_mode(struct phy *_phy, enum phy_mode mode)
+{
+ struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
+ struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
+
+ if (phy->index != 0)
+ return -EINVAL;
+
+ switch (mode) {
+ case PHY_MODE_USB_HOST: data->dr_mode = USB_DR_MODE_HOST; break;
+ case PHY_MODE_USB_DEVICE: data->dr_mode = USB_DR_MODE_PERIPHERAL; break;
+ case PHY_MODE_USB_OTG: data->dr_mode = USB_DR_MODE_OTG; break;
+ default:
+ return -EINVAL;
+ }
+
+ dev_info(&_phy->dev, "Changing dr_mode to %d\n", (int)data->dr_mode);
+ data->force_session_end = true;
+ queue_delayed_work(system_wq, &data->detect, 0);
+
+ return 0;
+}
+
void sun4i_usb_phy_set_squelch_detect(struct phy *_phy, bool enabled)
{
struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
@@ -440,6 +463,7 @@ static const struct phy_ops sun4i_usb_phy_ops = {
.exit = sun4i_usb_phy_exit,
.power_on = sun4i_usb_phy_power_on,
.power_off = sun4i_usb_phy_power_off,
+ .set_mode = sun4i_usb_phy_set_mode,
.owner = THIS_MODULE,
};
--
2.7.4
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