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Date:   Wed, 23 Sep 2020 13:38:30 +0200
From:   Thierry Reding <thierry.reding@gmail.com>
To:     Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc:     Jon Hunter <jonathanh@nvidia.com>,
        Rob Herring <robh+dt@kernel.org>,
        linux-i2c <linux-i2c@vger.kernel.org>,
        linux-devicetree <devicetree@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>, linux-tegra@vger.kernel.org
Subject: Re: [PATCH V2 0/5] Add support for custom names for AT24 EEPROMs
Message-ID: <20200923113830.GA1846003@ulmo>
References: <20200916094952.458003-1-jonathanh@nvidia.com>
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On Wed, Sep 23, 2020 at 11:15:03AM +0200, Bartosz Golaszewski wrote:
> On Wed, Sep 16, 2020 at 11:50 AM Jon Hunter <jonathanh@nvidia.com> wrote:
> >
> > For platforms that have multiple boards and hence have multiple EEPROMs
> > for identifying the different boards, it is useful to label the EEPROMs
> > in device-tree so that they can be easily identified. For example, MAC
> > address information is stored in the EEPROM on the processor module for
> > some Jetson platforms which is not only required by the kernel but the
> > bootloader as well. So having a simple way to identify the EEPROM is
> > needed.
> >
> > Changes since V1:
> > - By default initialise the nvmem_config.id as NVMEM_DEVID_AUTO and not
> >   NVMEM_DEVID_NONE
> > - Dropped the 'maxItems' from the dt-binding doc.
> >
> > Jon Hunter (5):
> >   misc: eeprom: at24: Initialise AT24 NVMEM ID field
> >   dt-bindings: eeprom: at24: Add label property for AT24
> >   misc: eeprom: at24: Support custom device names for AT24 EEPROMs
> >   arm64: tegra: Add label properties for EEPROMs
> >   arm64: tegra: Populate EEPROMs for Jetson Xavier NX
> >
> >  .../devicetree/bindings/eeprom/at24.yaml      |  3 +++
> >  .../boot/dts/nvidia/tegra186-p2771-0000.dts   |  1 +
> >  .../arm64/boot/dts/nvidia/tegra186-p3310.dtsi |  1 +
> >  .../arm64/boot/dts/nvidia/tegra194-p2888.dtsi |  1 +
> >  .../boot/dts/nvidia/tegra194-p2972-0000.dts   |  1 +
> >  .../nvidia/tegra194-p3509-0000+p3668-0000.dts | 14 ++++++++++++
> >  .../boot/dts/nvidia/tegra194-p3668-0000.dtsi  | 16 ++++++++++++++
> >  .../arm64/boot/dts/nvidia/tegra210-p2180.dtsi |  1 +
> >  .../boot/dts/nvidia/tegra210-p2371-2180.dts   |  1 +
> >  .../boot/dts/nvidia/tegra210-p3450-0000.dts   |  2 ++
> >  drivers/misc/eeprom/at24.c                    | 22 ++++++++++++++++++-
> >  11 files changed, 62 insertions(+), 1 deletion(-)
> >
> > --
> > 2.25.1
> >
>=20
> Just FYI: I'm fine with the at24 part. I can take them through my tree
> for v5.10. Who is taking the DTS patches for tegra? Thierry? I can
> provide you with an immutable branch if that's fine. I can't just ack
> the at24 patches because they conflict with what I already have in my
> tree for v5.10.

I don't think I'll need an immutable branch since the device tree
changes are not dependent on anything in the bindings, except maybe for
validation, or the driver.

Thierry

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