usb: musb: remove extra check in musb_gadget_vbus_draw

[ 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: e8fa19e641f6 ("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@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 8e83995fc3bd2b62e2a17b656beb46eea19df5f2..b8fc818c154aea73585010428c5c6c06b4dee6a7 100644 (file)
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1629,8 +1629,6 @@ 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);
 }