From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 BA9341DF985; Fri, 5 Sep 2025 04:50:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757047851; cv=none; b=iXU+vnX6xwGyDqnT4B4xqt1tRTLDF4RzD8dLiE7uwhwr40Qkh7LYXftX3WdPOCB53zWeey+PaRPzFfdGsyLXDmQ7Ma7xjSwt7sJ2mbgpHsBGOneidRFBU7VICslAI7vTusLLYUF3eJzauPWtMJrJU7PrCtyN0USjsazvNTwgGWw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757047851; c=relaxed/simple; bh=y/5a7k0wUPRODTgPuXBBRsBXnaLaZ7amN7FTAS0julE=; h=From:To:Cc:In-Reply-To:References:Subject:Message-Id:Date: MIME-Version:Content-Type; b=rxerQ9r5xWDUA8USA56W3iXqcqbWkBHBzRc8/nXA4lTUoxBmJsY5z35pwvF/vLcJFB3H+4kWhK3fzefi4MKy1/8Am4fVjqqjRQR5bcJU1F8h0mZOSp4e+ZKYAmfjR9AZS/KvPSKPhH5nfrYl/6k/eUiyDjDP51Wy1Dzpp9sVqmE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=pStKVpOQ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="pStKVpOQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CE5E8C4CEF1; Fri, 5 Sep 2025 04:50:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757047849; bh=y/5a7k0wUPRODTgPuXBBRsBXnaLaZ7amN7FTAS0julE=; h=From:To:Cc:In-Reply-To:References:Subject:Date:From; b=pStKVpOQSEipXtwkKTMPD0NGcQlfYLMrWCh4UsUVBIb4O6neA0b1XETdSZnYpbx2/ qBA85nn6Lu2V+hxKin6fTR4lmqfnT7qX4RbMlFxhWeqdX9Dn54nmmtPf49DaAEZq+R v19NUgl5ItMBYA/Q3aSUaPlXPBvA7Y8aMAmtfzKuOHzFLvSCJE4eoRXvNF/SOev+kB S1jf4UzJkQ33mtIAG6FO6PreKLPhdzRyy4pH1BAWcuKPYTb3npDft6u+U9Huo6MtKl V7WagGFPJCMT3kyvxLm7NRwY+6KhZsKeyzOwtZCVvybgFRLosORX7RfEZe+KSa8jcl 1ZJwgIbAjno3Q== From: Manivannan Sadhasivam To: frank.li@nxp.com, l.stach@pengutronix.de, lpieralisi@kernel.org, kwilczynski@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, bhelgaas@google.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, Richard Zhu Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-kernel@vger.kernel.org In-Reply-To: <20250820022328.2143374-1-hongxing.zhu@nxp.com> References: <20250820022328.2143374-1-hongxing.zhu@nxp.com> Subject: Re: [PATCH v5] PCI: imx6: Enable the vpcie3v3aux regulator when fetch it Message-Id: <175704784338.6198.15508737938849793492.b4-ty@kernel.org> Date: Fri, 05 Sep 2025 10:20:43 +0530 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.2 On Wed, 20 Aug 2025 10:23:28 +0800, Richard Zhu wrote: > Refer to PCIe CEM r6.0, sec 2.3 WAKE# Signal, WAKE# signal is only > asserted by the Add-in Card when all its functions are in D3Cold state > and at least one of its functions is enabled for wakeup generation. The > 3.3V auxiliary power (+3.3Vaux) must be present and used for wakeup > process. > > When the 3.3V auxiliary power is present, fetch this auxiliary regulator > at probe time and keep it enabled for the entire PCIe controller > lifecycle. This ensures support for outbound wake-up mechanism such as > WAKE# signaling. > > [...] Applied, thanks! [1/1] PCI: imx6: Enable the vpcie3v3aux regulator when fetch it commit: c221cbf8dc547eb8489152ac62ef103fede99545 Best regards, -- Manivannan Sadhasivam