From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-m16.yeah.net (mail-m16.yeah.net [220.197.32.17]) (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 E392915853B; Thu, 21 Aug 2025 07:28:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.32.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755761286; cv=none; b=aGW/EMPI+fmoeKCF5neZPg2cFjfSUaJAuLGzZRSwF6btcERQ78Qd25Resvo8oPyFXsKZv+jhdGfnfvp6JXfvujPIkkSFRCapPDEAZT9biWQq5nO84Hi6wc83DbnKp5ozu4d5LC4B0fWcsxU0hF6G1EVxvTixgHXNqNJBgdpq7bw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755761286; c=relaxed/simple; bh=svqcbi3OmPTDfakiBEfBMCs3Ex89tSVr80w/U+8RMkA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=lMd8QAYhC9RoFziWRbOpsxkKn8wcXs6wOOsepL9T7/LZN9iigvhlxooI4E1GuWBFuykiVtCCPAlsq+1H4bzoL92jiC/0epxs9txlA10evXdT9GoMiPKnnMRvGqy76BQo6hL1cZLM+2sgdq2JStHOOo28rKx88Ew7tjevBc/mRq8= 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=cAnZIVwX; arc=none smtp.client-ip=220.197.32.17 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="cAnZIVwX" 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=vSKYxpG2l1hLbvhop/k88VTpfR3m9wwP+xtV0BRw8B8=; b=cAnZIVwXcfoCbePnaF9lR41aRUKHK61RpFnwD8UwDIeLYSLWPFvT6OhrmTX6dK QZdvcJp6PhMfEe5NDEI8NjyqU5JQ+jF/peP0O/xTFKWsTtPmTccTMpH4vEOY4rfp 25DPz1Qs59k+A8kWUrP3ftU3bARpRy829m15pXT02xmNU= Received: from dragon (unknown []) by gzsmtp2 (Coremail) with SMTP id Ms8vCgDnnyhGyqZoY5IZAw--.37745S3; Thu, 21 Aug 2025 15:27:04 +0800 (CST) Date: Thu, 21 Aug 2025 15:27:02 +0800 From: Shawn Guo To: Dario Binacchi Cc: linux-kernel@vger.kernel.org, Peng Fan , linux-amarula@amarulasolutions.com, Wolfgang Birkner , Conor Dooley , Fabio Estevam , Krzysztof Kozlowski , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2] ARM: dts: imx6ulz-bsh-smm-m2: fix resume via console Message-ID: References: <20250715141322.1305512-1-dario.binacchi@amarulasolutions.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: <20250715141322.1305512-1-dario.binacchi@amarulasolutions.com> X-CM-TRANSID:Ms8vCgDnnyhGyqZoY5IZAw--.37745S3 X-Coremail-Antispam: 1Uf129KBjvdXoW5Kw4ruFWrur47Jr45WryDKFg_yoWxGFX_ur 18Grn7X3Wjy3WxA3WIyr4UZryjgw47GrZxW3yFkw1fJFy8urZ7Ga97tr13ArW7Wr4rK347 W3WYvan0yw47JjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUb7PEDUUUUU== X-CM-SenderInfo: pvkd40hjxrjqh1hdxhhqhw/1tbiNQiI7WimykhiKAAA3e On Tue, Jul 15, 2025 at 04:13:10PM +0200, Dario Binacchi wrote: > From: Wolfgang Birkner > > Despite the current configuration being compliant with the technical > reference manual (TRM), testing on the system showed that resuming from > suspend via UART4 (used as the console) fails unless any other UART > is also enabled. > > In our use case, UART2 is enabled to ensure reliable resume when UART4 > is used as the console. > > Signed-off-by: Wolfgang Birkner > Signed-off-by: Dario Binacchi Weird, but applied.