linux-kernel - Re: [PATCH v5] PCI: imx6: Enable the vpcie3v3aux regulator when fetch it

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Message-Id: <175704784338.6198.15508737938849793492.b4-ty@kernel.org>
Date: Fri, 05 Sep 2025 10:20:43 +0530
From: Manivannan Sadhasivam <mani@...nel.org>
To: frank.li@....com, l.stach@...gutronix.de, lpieralisi@...nel.org, 
 kwilczynski@...nel.org, robh@...nel.org, krzk+dt@...nel.org, 
 conor+dt@...nel.org, bhelgaas@...gle.com, shawnguo@...nel.org, 
 s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com, 
 Richard Zhu <hongxing.zhu@....com>
Cc: linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5] PCI: imx6: Enable the vpcie3v3aux regulator when
 fetch it


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 <mani@...nel.org>