From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-m16.yeah.net (mail-m16.yeah.net [1.95.21.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 694D31DDC2A for ; Mon, 7 Jul 2025 08:21:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=1.95.21.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751876507; cv=none; b=W/Kv28KdIIqdXOhHnwTTMKtEXmzeCIiVnPgKp5xvSZQsK02jyBCijbpLofdCF7IEGYDcPsBt5slQEaqZ8PwETGHNH/5h36AsCVODpwN2qsk5Oz6BZKk8P2rCYPBICFRC+rhlJ7UqA4OqnWs+RJPmCvKKVcNivz5YFseiYcqNI00= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751876507; c=relaxed/simple; bh=/oKrqKaCPqGjDAiu1q1q/zy8gihlawhcd8LJ/wh7Ezs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=gxRJXsIvhuDgun6yZlsPv0XRf40Xk8m64n/QQ2pSPQHR1uYAoUiseQQl2p7AJ/2vpbPb2J+B28Hgu5+CtsfD3fn/DeXWP7pEXG3Vrpx1bw6Rqf48SSznk9U2hxOsVP8CzKVERb2038gYcWEI/e3woc/os9PeBFvRpEBBkFG0gpw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=yeah.net; spf=pass smtp.mailfrom=yeah.net; dkim=pass (1024-bit key) header.d=yeah.net header.i=@yeah.net header.b=ZFXZbWai; arc=none smtp.client-ip=1.95.21.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=yeah.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=yeah.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=yeah.net header.i=@yeah.net header.b="ZFXZbWai" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yeah.net; s=s110527; h=Date:From:To:Subject:Message-ID:MIME-Version: Content-Type; bh=vyklAUbbO9HgYSarbfvrSepbaUCt1uYyW4m9xUB5+0U=; b=ZFXZbWaiUtmErHFH9CffaxylkyhJZiklvZF3zyWzwJbFsFIqCcji6E+nRqzpcS CqdA8hk9foYTKXTFj1/3HhRH8184sstDUTL8/ePOtJqQZAJF1d0P/0Pzgre5lwbo JViGqloIsfAZFnZ73mJUe2vHDpqMrcWZm8t8IFu0qJna8= Received: from dragon (unknown []) by gzsmtp2 (Coremail) with SMTP id Ms8vCgDXfxBsg2toWId5AA--.22061S3; Mon, 07 Jul 2025 16:21:02 +0800 (CST) Date: Mon, 7 Jul 2025 16:21:00 +0800 From: Shawn Guo To: Xu Yang , Frank Li Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, jun.li@nxp.com Subject: Re: [PATCH] arm64: dts: imx95: add some USB3 PHY tuning properties Message-ID: References: <20250627031348.3455547-1-xu.yang_2@nxp.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250627031348.3455547-1-xu.yang_2@nxp.com> X-CM-TRANSID:Ms8vCgDXfxBsg2toWId5AA--.22061S3 X-Coremail-Antispam: 1Uf129KBjvJXoW7KF1kKw47tF1rGw1DXF45GFg_yoW8ZrW3pr 4kCFsrXr1fKF1fC3s2qF18Kr98Jan3G3srurWUWr1UKrZxZrnrtF4ftF4fWw4j9r4xua1r WF1kuF97ZrnFgw7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jowZcUUUUU= X-CM-SenderInfo: pvkd40hjxrjqh1hdxhhqhw/1tbiCRyDZWhrVpmjQQAAsd On Fri, Jun 27, 2025 at 11:13:48AM +0800, Xu Yang wrote: > Add some USB3 PHY tuning properties to imx95-15x15-evk and > imx95-19x19-evk boards to improve USB signal quality. > > Reviewed-by: Jun Li > Signed-off-by: Xu Yang > --- > arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts | 6 +++++- > arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 4 ++++ > 2 files changed, 9 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts > index 6c47f4b47356..b26e9db7832a 100644 > --- a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts > +++ b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts > @@ -1069,8 +1069,12 @@ usb3_data_hs: endpoint { > }; > > &usb3_phy { > - orientation-switch; > + fsl,phy-pcs-tx-deemph-3p5db-attenuation-db = <17>; > + fsl,phy-pcs-tx-swing-full-percent = <100>; > fsl,phy-tx-preemp-amp-tune-microamp = <600>; > + fsl,phy-tx-vboost-level-microvolt = <1156>; > + fsl,phy-tx-vref-tune-percent = <100>; > + orientation-switch; > status = "okay"; It conflicts with what I applied from Frank [1]. Shawn [1] https://lkml.org/lkml/2025/6/6/920 > > port { > diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts > index 6886ea766655..e212f12f869a 100644 > --- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts > +++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts > @@ -514,7 +514,11 @@ usb3_data_hs: endpoint { > }; > > &usb3_phy { > + fsl,phy-pcs-tx-deemph-3p5db-attenuation-db = <17>; > + fsl,phy-pcs-tx-swing-full-percent = <100>; > fsl,phy-tx-preemp-amp-tune-microamp = <600>; > + fsl,phy-tx-vboost-level-microvolt = <1156>; > + fsl,phy-tx-vref-tune-percent = <100>; > orientation-switch; > status = "okay"; > > -- > 2.34.1 >