From mboxrd@z Thu Jan 1 00:00:00 1970 From: Icenowy Zheng Subject: Re: [PATCH] ARM: dts: sun8i: Fix power for USB Ethernet controller Date: Thu, 28 Dec 2017 21:01:26 +0800 Message-ID: <137686441.91VTU2W72k@ice-x220i> References: <20171228125222.12942-1-hauke@hauke-m.de> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: <20171228125222.12942-1-hauke-5/S+JYg5SzeELgA04lAiVw@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Hauke Mehrtens Cc: maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org, wens-jdAy2FN1RRM@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org 在 2017年12月28日星期四 CST 下午8:52:22，Hauke Mehrtens 写道： > The RTL8152B USB controller needs a 3.3 volt power supply which is > controlled by PAD20. Without this patch Linux will not see that there is > a device connected to the USB bus and the 2. USB port will not work. > > I do not of a better solution to add a regulator to a USB device. I have one. Please check the patch I will send you soon. > > Signed-off-by: Hauke Mehrtens > --- > arch/arm/boot/dts/sun8i-h2-plus-orangepi-r1.dts | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-r1.dts > b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-r1.dts index > 32a6d312422e..1d5db0e0bd12 100644 > --- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-r1.dts > +++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-r1.dts > @@ -47,13 +47,15 @@ > model = "Xunlong Orange Pi R1"; > compatible = "xunlong,orangepi-r1", "allwinner,sun8i-h2-plus"; > > - /delete-node/ reg_vcc_wifi; > - > aliases { > ethernet1 = &rtl8189etv; > }; > }; > > +®_vcc_wifi { > + regulator-always-on; > +}; > + > &ohci1 { > /* > * RTL8152B USB-Ethernet adapter is connected to USB1, -- 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