From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Chen Subject: Re: [PATCH] ARM: dts: imx23-olinuxino: Fix dr_mode of usb0 Date: Wed, 15 Apr 2015 11:32:12 +0800 Message-ID: <20150415033211.GB29095@shlinux2> References: <1429043846-28731-1-git-send-email-stefan.wahren@i2se.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Return-path: Content-Disposition: inline In-Reply-To: <1429043846-28731-1-git-send-email-stefan.wahren-eS4NqCHxEME@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Stefan Wahren Cc: shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, fabio.estevam-KZfg59tc24xl57MIdRCFDg@public.gmane.org, marex-ynQEQJNshbs@public.gmane.org, kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, harald-95f8Dae0BrPYtjvyW6yDsg@public.gmane.org List-Id: devicetree@vger.kernel.org On Tue, Apr 14, 2015 at 08:37:26PM +0000, Stefan Wahren wrote: > The dr_mode of usb0 on imx233-olinuxino is left to default "otg". > Since the green LED (GPIO2_1) on imx233-olinuxino is connected to the > same pin as USB_OTG_ID it's possible to disable USB host by LED toggling: > > echo 0 > /sys/class/leds/green/brightness > [ 1068.890000] ci_hdrc ci_hdrc.0: remove, state 1 > [ 1068.890000] usb usb1: USB disconnect, device number 1 > [ 1068.920000] usb 1-1: USB disconnect, device number 2 > [ 1068.920000] usb 1-1.1: USB disconnect, device number 3 > [ 1069.070000] usb 1-1.2: USB disconnect, device number 4 > [ 1069.450000] ci_hdrc ci_hdrc.0: USB bus 1 deregistered > [ 1074.460000] ci_hdrc ci_hdrc.0: timeout waiting for 00000800 in 11 > > This patch fixes the issue by setting dr_mode to "host" in the dts file. > > Reported-by: Harald Geyer > Signed-off-by: Stefan Wahren > --- > arch/arm/boot/dts/imx23-olinuxino.dts | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts > index 7e6eef2..3b2d74d 100644 > --- a/arch/arm/boot/dts/imx23-olinuxino.dts > +++ b/arch/arm/boot/dts/imx23-olinuxino.dts > @@ -93,6 +93,7 @@ > > ahb@80080000 { > usb0: usb@80080000 { > + dr_mode = "host"; > vbus-supply = <®_usb0_vbus>; > status = "okay"; > }; > -- > 1.7.9.5 > If this board has only host function, I am ok for it. Acked-by: Peter Chen -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html