Commit d05885ad authored by Chen-Yu Tsai's avatar Chen-Yu Tsai Committed by Greg Kroah-Hartman

phy: sun4i-usb: Support set_mode to USB_HOST for non-OTG PHYs

commit 1396929e8a903db80425343cacca766a18ad6409 upstream.

While only the first PHY supports mode switching, the remaining PHYs
work in USB host mode. They should support set_mode with mode=USB_HOST
instead of failing. This is especially needed now that the USB core does
set_mode for all USB ports, which was added in commit b97a31348379 ("usb:
core: comply to PHY framework").

Make set_mode with mode=USB_HOST a no-op instead of failing for the
non-OTG USB PHYs.

Fixes: 6ba43c29 ("phy-sun4i-usb: Add support for phy_set_mode")
Signed-off-by: 's avatarChen-Yu Tsai <wens@csie.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: 's avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5d4cc25d
......@@ -480,8 +480,11 @@ static int sun4i_usb_phy_set_mode(struct phy *_phy, enum phy_mode mode)
struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
int new_mode;
if (phy->index != 0)
if (phy->index != 0) {
if (mode == PHY_MODE_USB_HOST)
return 0;
return -EINVAL;
}
switch (mode) {
case PHY_MODE_USB_HOST:
......
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