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authorIvaylo Dimitrov2022-11-25 20:21:15 +0200
committerGreg Kroah-Hartman2022-12-31 13:31:47 +0100
commit7913fc303d121077d9c24ed70538d87d4538f465 (patch)
treef842a1462a8b93229763298cb9420eb5074afe5f /drivers/usb/musb
parente72fab11d350849fc33cddd7304a8bbb4ecbe640 (diff)
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: 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@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/usb/musb')
-rw-r--r--drivers/usb/musb/musb_gadget.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 6704a62a1665..ba20272d2221 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);
}