From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-m16.yeah.net (mail-m16.yeah.net [220.197.32.19]) (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 9DF8A2185AA; Wed, 20 Aug 2025 03:08:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.32.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755659302; cv=none; b=OJJ1dczB/6auE4nEWt6oHM5FfUrmMDiifW9zUB6miaBeKl/9uHpESq5AaOVCKk/fo19tuaWz1QNjen/qMSJ+QhWW0AJYCmaCRSyiaPihRmNhDuPfyLXRoqnAxZEGyztvUxt9Tl56SaF4in7AoJKSsZkah6VxNZbPCJU/QD/p5Jw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755659302; c=relaxed/simple; bh=ZXSSwhiLothcw42T8WV/C2Hk6BN4vEWGCis46vc1PUo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=RHz44hXRPHh9EED1tpscf6mPXV4jrDrImpvAdfv/JPKYQ1F7PC08sTDocMrt23ThP2ZqmccIaytz3DsrkWAA36N3Wz0KFfgttwrygxF4I7pV1cizxdIrxsABB0Y54oZEzNeFOUS+NU93pWIJd0jRfuWXK1H4qCaFhkOnl9r8aDA= 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=WcOh3ZWS; arc=none smtp.client-ip=220.197.32.19 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="WcOh3ZWS" 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=xhgXz+NGz9dE9bo3AgVhV+r8lEFLGIj0GKiYKAiGm04=; b=WcOh3ZWSv2Xk56vJhMpz6KCwCHurEduYoLeL7PSDayXg+xQrZ93ge37SGl8rre qbREsrJMJ1iAf4gfl0pxJaV1UcCM62QN2AYFMzqJ7gIp7iWsybmOZFIKrUn6JFfe Z4mUlqrF450rsSaU6hCZ39ffVes2sW4EiuAnLV1kfqA/U= Received: from dragon (unknown []) by gzsmtp3 (Coremail) with SMTP id M88vCgAn5W6VNKVobNX3Ag--.59759S3; Wed, 20 Aug 2025 10:36:07 +0800 (CST) Date: Wed, 20 Aug 2025 10:36:04 +0800 From: Shawn Guo To: Christoph Stoidner Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, upstream@lists.phytec.de Subject: Re: [PATCH v3] arm64: dts: freescale: imx93-phycore-som: Delay the phy reset by a gpio Message-ID: References: <20250524112315.695376-1-c.stoidner@phytec.de> Precedence: bulk X-Mailing-List: linux-kernel@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: <20250524112315.695376-1-c.stoidner@phytec.de> X-CM-TRANSID:M88vCgAn5W6VNKVobNX3Ag--.59759S3 X-Coremail-Antispam: 1Uf129KBjvdXoW7GF13Gr47JrWDuryDKry3urg_yoWxuwb_ua y8K3ZFkw42yrZYgF4fKF42gr43uaykGFyrXr4rJw4fXryrXa4DWFn5Arn3Zr98X3yS9ry3 WF909a4xursrWjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUb7PEDUUUUU== X-CM-SenderInfo: pvkd40hjxrjqh1hdxhhqhw/1tbiNhe1G2ilNJffuAAA3G On Sat, May 24, 2025 at 01:23:15PM +0200, Christoph Stoidner wrote: > According to the datasheet the phy needs to be held in reset until the > reference clock got stable. Even though no issue was observed, fix this > as the software should always comply with the specification. > > Use gpio4 23, which is connected to the phy reset pin. On the same pin > RX_ER was used before, but this signal is optional and can be dropped. > > Note: This comes into effect with the phyCOREs SOM hardware revision 4. > In revisions before, this gpio is not connected, and the phy reset is > managed with the global hardware reset circuit. > > Signed-off-by: Christoph Stoidner Applied, thanks!