linux-kernel - Re: [PATCH v5 5/5] power: sequencing: Add the Power Sequencing driver for the PCIe M.2 connectors

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Message-ID: <ix7mu6twdd35clxyglgcwilwn3o3u5jvkmf6wwyz7zwgsscbc5@awwwnouy4pyh>
Date: Mon, 12 Jan 2026 13:28:38 +0530
From: Manivannan Sadhasivam <mani@...nel.org>
To: Damien Le Moal <dlemoal@...nel.org>
Cc: Bartosz Golaszewski <brgl@...nel.org>, 
	manivannan.sadhasivam@....qualcomm.com, Bjorn Helgaas <bhelgaas@...gle.com>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Niklas Cassel <cassel@...nel.org>, 
	Linus Walleij <linus.walleij@...aro.org>, linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
	Stephan Gerhold <stephan.gerhold@...aro.org>, Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>, 
	linux-pm@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: [PATCH v5 5/5] power: sequencing: Add the Power Sequencing
 driver for the PCIe M.2 connectors

On Fri, Jan 09, 2026 at 10:02:10AM +0100, Damien Le Moal wrote:
> On 1/9/26 07:02, Manivannan Sadhasivam wrote:
> > On Thu, Jan 08, 2026 at 01:15:12PM +0100, Bartosz Golaszewski wrote:
> >> On Wed, Jan 7, 2026 at 3:11 PM Manivannan Sadhasivam via B4 Relay
> >> <devnull+manivannan.sadhasivam.oss.qualcomm.com@...nel.org> wrote:
> >>>
> >>> From: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
> >>>
> >>> This driver is used to control the PCIe M.2 connectors of different
> >>> Mechanical Keys attached to the host machines and supporting different
> >>> interfaces like PCIe/SATA, USB/UART etc...
> >>>
> >>> Currently, this driver supports only the Mechanical Key M connectors with
> >>> PCIe interface. The driver also only supports driving the mandatory 3.3v
> >>> and optional 1.8v power supplies. The optional signals of the Key M
> >>> connectors are not currently supported.
> >>>
> >>> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
> >>
> >> This looks good to me, though there are some nits I may fix when applying.
> >>
> >> I'll pick it up for v7.0 once the bindings are reviewed.
> >>
> > 
> > Ok. I'm expecting patch 1 to go through ATA tree, patch 2 through DT, and
> > patches 3,4 through PCI tree.
> 
> Patch 1 seems to be completely unrelated to the power changes, so please send it
> to the ata list separately. It is otherwise very complicated and confusing for
> everyone to have patches from one series being applied through multiple trees.
> 

Many maintainers often prefer patches in a single series for the complete
picture. That's why I clubbed all of them in a single series. But I can send the
ATA binding separately also (once it got reviewed by Rob).

Btw, with b4, it is no longer a hassle to apply individual patches from a single
series.

- Mani

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