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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KF1X/3cj948PjMeFbZfRlquxhga99uxMWr3+oeJo3s0=; b=qeghRZzFOp7A/SuqFq1i8ZRQoMbJooEkaxtsTj+u4waX7K2ouENhkNfRsFUfhbAXFb SRkfupWS9b3ko3al+Ogr5+jq7ZZ1otRekzuPN+7uPem/oL/aTtn79wPUBCyqVyMeRZCX J27njeAhaFQ4P7JA4nF6EAR2c2ceDZuynj9LHS6+OGaJrs4COaoVJn/NMMoI6xvzWKKM EYopGL3eeTcdCIPaP9SHnWYmwd20S7BA0sFyik4l23ggcVtj9uizOkAu9tarXw9GNoy1 bUTztIKCNnt8sxPlsA8z38qJkmTokPXLB3pgIJGZKUE74Aokro7IuXAjym9fFOTko2tY 1agQ== X-Gm-Message-State: AJcUukdWQPYELUCL/FmmPrF46Rpr5hI/vkw7rHRXlOvzvyYWaHMlabLt PgUG0gLNIWbSIkQ3xRJTKVrz9MrfsZ7Lzl4ycoY= X-Google-Smtp-Source: ALg8bN7FU8oOdQZnUAXmiYPg3p0yWdVj2YngiQneYml9cjWV6TAYvY+/AgfilrX2oHq7gRPWkDTlYkWQK1Q+kior4os= X-Received: by 2002:a9d:715d:: with SMTP id y29mr37903772otj.148.1549288749719; Mon, 04 Feb 2019 05:59:09 -0800 (PST) MIME-Version: 1.0 References: <20190129102521.4141-1-linux.amoon@gmail.com> <20190129102521.4141-2-linux.amoon@gmail.com> In-Reply-To: <20190129102521.4141-2-linux.amoon@gmail.com> From: Martin Blumenstingl Date: Mon, 4 Feb 2019 14:58:58 +0100 Message-ID: Subject: Re: [PATCHv3 1/2] ARM64: dts: meson-gxbb-odroidc2: Fix usb phy reset warning To: Anand Moon X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190204_055910_942554_84C5EE8F X-CRM114-Status: GOOD ( 16.77 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Neil Armstrong , Kevin Hilman , linux-kernel@vger.kernel.org, Rob Herring , linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Jerome Brunet Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Hi Anand, On Tue, Jan 29, 2019 at 11:25 AM Anand Moon wrote: > > Add missing vin-supply node 5.0V regulator setting to power > to usb ports, changes help fix the usb reset warning. > > [ 795.380156] usb 1-1.2: reset high-speed USB device number 3 using dwc2 > [ 798.356073] usb 1-1.2: reset high-speed USB device number 3 using dwc2 > [ 801.331999] usb 1-1.2: reset high-speed USB device number 3 using dwc2 > [ 804.307919] usb 1-1.2: reset high-speed USB device number 3 using dwc2 > [ 807.283844] usb 1-1.2: reset high-speed USB device number 3 using dwc2 > > Fixes: 5a0803bd5ae (ARM64: dts: meson-gxbb-odroidc2: Enable USB Nodes) > Tested-by: Kevin Hilman > Cc: Martin Blumenstingl > Cc: Jerome Brunet > Cc: Neil Armstrong > Signed-off-by: Anand Moon > --- > changes from prevoius > > regulator use open bypass opmode voltage current min max > --------------------------------------------------------------------------------------- > regulator-dummy 5 4 0 unknown 0mV 0mA 0mV 0mV > c9100000.usb 1 0mA 0mV 0mV > c9100000.usb 1 0mA 0mV 0mV > c9000000.usb 1 0mA 0mV 0mV > c9000000.usb 1 0mA 0mV 0mV > P5V0 1 1 0 unknown 5000mV 0mA 5000mV 5000mV > USB_OTG_PWR 4 2 0 unknown 5000mV 0mA 5000mV 5000mV > phy-c0000020.phy.1 2 0mA 0mV 0mV > phy-c0000000.phy.0 2 0mA 0mV 0mV > -- > --- > arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts > index 2e1cd5e3a246..da729ed00408 100644 > --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts > +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts > @@ -28,6 +28,13 @@ > reg = <0x0 0x0 0x0 0x80000000>; > }; > > + p5v0: regulator-p5v0 { > + compatible = "regulator-fixed"; > + regulator-name = "P5V0"; > + regulator-min-microvolt = <5000000>; > + regulator-max-microvolt = <5000000>; > + }; > + > usb_otg_pwr: regulator-usb-pwrs { > compatible = "regulator-fixed"; > > @@ -36,6 +43,8 @@ > regulator-min-microvolt = <5000000>; > regulator-max-microvolt = <5000000>; > > + vin-supply = <&p5v0>; did you find out why this patch fixes the USB_OTG_PWR regulator? based on just reading the patch I can't find an explanation myself have you tested without this patch to rule out that you hit some bug in the regulator framework back when you wrote the patch? (I don't have an Odroid-C2 so I can't test this myself). Regards Martin _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic