| Message ID | 20200909160409.8678-2-narmstrong@baylibre.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | usb: dwc-meson-g12a: Add support for USB on S400 board | expand |
On Wed, Sep 9, 2020 at 6:04 PM Neil Armstrong <narmstrong@baylibre.com> wrote: > > In order to keep OTG ID detection even when in Host mode, the ID line of > the PHY (if the current phy is an OTG one) pull-up should be kept > enable in both modes. > > This fixes OTG switch on GXL, GXM & AXG platforms, otherwise once switched > to Host, the ID detection doesn't work anymore to switch back to Device. > > Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
diff --git a/drivers/phy/amlogic/phy-meson-gxl-usb2.c b/drivers/phy/amlogic/phy-meson-gxl-usb2.c index 43ec9bf24abf..6e862ea60d8f 100644 --- a/drivers/phy/amlogic/phy-meson-gxl-usb2.c +++ b/drivers/phy/amlogic/phy-meson-gxl-usb2.c @@ -158,7 +158,8 @@ static int phy_meson_gxl_usb2_set_mode(struct phy *phy, U2P_R0_DM_PULLDOWN); regmap_update_bits(priv->regmap, U2P_R0, U2P_R0_DP_PULLDOWN, U2P_R0_DP_PULLDOWN); - regmap_update_bits(priv->regmap, U2P_R0, U2P_R0_ID_PULLUP, 0); + regmap_update_bits(priv->regmap, U2P_R0, U2P_R0_ID_PULLUP, + U2P_R0_ID_PULLUP); break; case PHY_MODE_USB_DEVICE:
In order to keep OTG ID detection even when in Host mode, the ID line of the PHY (if the current phy is an OTG one) pull-up should be kept enable in both modes. This fixes OTG switch on GXL, GXM & AXG platforms, otherwise once switched to Host, the ID detection doesn't work anymore to switch back to Device. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> --- drivers/phy/amlogic/phy-meson-gxl-usb2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)