Messages in this thread | | | From | Frank Wunderlich <> | Subject | Aw: [PATCH] phy: rockchip-inno-usb2: Ignore OTG IRQs in host mode | Date | Fri, 8 Jul 2022 13:47:14 +0200 |
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Hi Samuel
thx for the fix...with this it works again
Tested-by: Frank Wunderlich <frank-w@public-files.de>
regards Frank
> Gesendet: Freitag, 08. Juli 2022 um 08:14 Uhr > Von: "Samuel Holland" <samuel@sholland.org> > An: "Frank Wunderlich" <frank-w@public-files.de>, "Vinod Koul" <vkoul@kernel.org> > Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>, "Peter Geis" <pgwipeout@gmail.com>, "Samuel Holland" <samuel@sholland.org>, "Heiko Stuebner" <heiko@sntech.de>, "Kishon Vijay Abraham I" <kishon@ti.com>, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-rockchip@lists.infradead.org > Betreff: [PATCH] phy: rockchip-inno-usb2: Ignore OTG IRQs in host mode > > When the OTG port is fixed to host mode, the driver does not request its > IRQs, nor does it enable those IRQs in hardware. Similarly, the driver > should ignore the OTG port IRQs when handling the shared interrupt. > > Otherwise, it would update the extcon based on an ID pin which may be in > an undefined state, or try to queue a uninitialized work item. > > Fixes: 6a98df08ccd5 ("phy: rockchip-inno-usb2: Fix muxed interrupt support") > Reported-by: Frank Wunderlich <frank-w@public-files.de> > Signed-off-by: Samuel Holland <samuel@sholland.org> > --- > > drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c > index 6711659f727c..26b841c49ec6 100644 > --- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c > +++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c > @@ -978,7 +978,9 @@ static irqreturn_t rockchip_usb2phy_irq(int irq, void *data) > > switch (rport->port_id) { > case USB2PHY_PORT_OTG: > - ret |= rockchip_usb2phy_otg_mux_irq(irq, rport); > + if (rport->mode != USB_DR_MODE_HOST && > + rport->mode != USB_DR_MODE_UNKNOWN) > + ret |= rockchip_usb2phy_otg_mux_irq(irq, rport); > break; > case USB2PHY_PORT_HOST: > ret |= rockchip_usb2phy_linestate_irq(irq, rport); > -- > 2.35.1 > >
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