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| author | Hans de Goede <hdegoede@redhat.com> | 2016-09-07 22:20:40 +0200 |
|---|---|---|
| committer | Kishon Vijay Abraham I <kishon@ti.com> | 2016-09-10 17:15:19 +0530 |
| commit | 6ba43c2919613dad1a880fcab19cda1d68a5ce3d (patch) | |
| tree | e33f7e871d0c4a3be659269091828d09c0fbed66 | |
| parent | 5f90d31cab915e2405f8875e21239d4a6003a170 (diff) | |
| download | linux-6ba43c2919613dad1a880fcab19cda1d68a5ce3d.tar.gz | |
phy-sun4i-usb: Add support for phy_set_mode
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 <hdegoede@redhat.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
| -rw-r--r-- | drivers/phy/phy-sun4i-usb.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c index fb2d4f3666a5..af42f8d40ac1 100644 --- a/drivers/phy/phy-sun4i-usb.c +++ b/drivers/phy/phy-sun4i-usb.c @@ -427,6 +427,35 @@ 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 +469,7 @@ 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, }; |