linux-kernel - Re: [PATCH 0/2] PCI: aardvark: Fix comphy with old ATF

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Message-ID: <20201002142616.dxgdneg2lqw4pxie@pali>
Date:   Fri, 2 Oct 2020 16:26:16 +0200
From:   Pali Rohár <pali@...nel.org>
To:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc:     Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Marek Behún <marek.behun@....cz>,
        Tomasz Maciej Nowak <tmn505@...il.com>,
        linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] PCI: aardvark: Fix comphy with old ATF

On Friday 02 October 2020 14:37:13 Lorenzo Pieralisi wrote:
> On Wed, Sep 02, 2020 at 04:43:42PM +0200, Pali Rohár wrote:
> > This patch series fixes regression introduced in commit 366697018c9a
> > ("PCI: aardvark: Add PHY support") which caused aardvark driver
> > initialization failure on EspressoBin board with factory version of
> > Arm Trusted Firmware provided by Marvell.
> > 
> > Second patch depends on the first patch, so please add appropriate
> > Fixes/Cc:stable@ tags to have both patches correctly backported to
> > stable kernels.
> > 
> > I have tested both patches with Marvell ATF firmware ebin-17.10-uart.zip
> > and with upstream ATF+uboot and aardvark was initialized successfully.
> > Without this patch series on ebin-17.10-uart.zip aardvark initialization
> > failed.
> > 
> > Pali Rohár (2):
> >   phy: marvell: comphy: Convert internal SMCC firmware return codes to
> >     errno
> >   PCI: aardvark: Fix initialization with old Marvell's Arm Trusted
> >     Firmware
> > 
> >  drivers/pci/controller/pci-aardvark.c        |  4 +++-
> >  drivers/phy/marvell/phy-mvebu-a3700-comphy.c | 14 +++++++++++---
> >  drivers/phy/marvell/phy-mvebu-cp110-comphy.c | 14 +++++++++++---
> >  3 files changed, 25 insertions(+), 7 deletions(-)
> 
> Applied to pci/aardvark (both patches), thanks.

Ok! For second patch would be needed to put CC:stable line with
specifying prerequisite of first patch as written in document:

https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html

If I understood it correctly, second patch needs following line:

Cc: <stable@...r.kernel.org> # <commit_id_of_first_path>: comphy: errno return codes

where <commit_id_of_first_path> is commit id of PATCH 1/2.

(correct me if I'm wrong)

Now when first commit has commit id, could you update second commit to
include this information about prerequisite?