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| author | Jagan Teki <jagan@amarulasolutions.com> | 2018-05-07 10:33:37 +0300 |
|---|---|---|
| committer | Jagan Teki <jagan@amarulasolutions.com> | 2018-05-28 14:10:43 +0300 |
| commit | aa29b11b3fdeaedb9689e89e467e6bbd036780ac (patch) | |
| tree | 7fa2303d653682ed99a61a6499812763832cfb7c /include/phy-sun4i-usb.h | |
| parent | 237050fc62c8313a50cd3618dbb21638a818f0bb (diff) | |
| download | u-boot-aa29b11b3fdeaedb9689e89e467e6bbd036780ac.tar.xz | |
phy: sun4i-usb: Add a sunxi specific function for setting squelch-detect
The sunxi otg phy has a bug where it wrongly detects a high speed squelch
when reset on the root port gets de-asserted with a lo-speed device.
The workaround for this is to disable squelch detect before de-asserting
reset, and re-enabling it after the reset de-assert is done. Add a sunxi
specific phy function to allow the sunxi-musb glue to do this.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Jun Nie <jun.nie@linaro.org>
Diffstat (limited to 'include/phy-sun4i-usb.h')
| -rw-r--r-- | include/phy-sun4i-usb.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/phy-sun4i-usb.h b/include/phy-sun4i-usb.h index 040e9d3750..b0a45b2058 100644 --- a/include/phy-sun4i-usb.h +++ b/include/phy-sun4i-usb.h @@ -23,4 +23,12 @@ int sun4i_usb_phy_id_detect(struct phy *phy); */ int sun4i_usb_phy_vbus_detect(struct phy *phy); +/** + * sun4i_usb_phy_set_squelch_detect() - Enable/disable squelch detect + * + * @phy: reference to a sun4i usb phy + * @enabled: wether to enable or disable squelch detect + */ +void sun4i_usb_phy_set_squelch_detect(struct phy *phy, bool enabled); + #endif /*__GENERIC_PHY_SUN4I_USB_H */ |