From: Ivaylo Dimitrov ivo.g.dimitrov.75@gmail.com
[ Upstream commit ecec4b20d29c3d6922dafe7d2555254a454272d2 ]
The checks for musb->xceiv and musb->xceiv->set_power duplicate those in usb_phy_set_power(), so there is no need of them. Moreover, not calling usb_phy_set_power() results in usb_phy_set_charger_current() not being called, so current USB config max current is not propagated through USB charger framework and charger drivers may try to draw more current than allowed or possible.
Fix that by removing those extra checks and calling usb_phy_set_power() directly.
Tested on Motorola Droid4 and Nokia N900
Fixes: a9081a008f84 ("usb: phy: Add USB charger support") Cc: stable stable@kernel.org Signed-off-by: Ivaylo Dimitrov ivo.g.dimitrov.75@gmail.com Link: https://lore.kernel.org/r/1669400475-4762-1-git-send-email-ivo.g.dimitrov.75... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/musb/musb_gadget.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index dc67fff8e941..22c3df49ba8a 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1628,8 +1628,6 @@ static int musb_gadget_vbus_draw(struct usb_gadget *gadget, unsigned mA) { struct musb *musb = gadget_to_musb(gadget);
- if (!musb->xceiv->set_power) - return -EOPNOTSUPP; return usb_phy_set_power(musb->xceiv, mA); }