linux-kernel - Re: [net-next PATCH v18 3/8] dt-bindings: mfd: Document support for Airoha AN8855 Switch SoC

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Message-ID: <20250917103745.vhdsvrrv7z23qpnn@skbuf>
Date: Wed, 17 Sep 2025 13:37:45 +0300
From: Vladimir Oltean <olteanv@...il.com>
To: Christian Marangi <ansuelsmth@...il.com>
Cc: Rob Herring <robh@...nel.org>, Russell King <linux@...linux.org.uk>,
	Jakub Kicinski <kuba@...nel.org>, devicetree@...r.kernel.org,
	Paolo Abeni <pabeni@...hat.com>,
	Daniel Golle <daniel@...rotopia.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Sean Wang <sean.wang@...iatek.com>,
	"Chester A. Unal" <chester.a.unal@...nc9.com>,
	Heiner Kallweit <hkallweit1@...il.com>, netdev@...r.kernel.org,
	linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
	DENG Qingfang <dqfext@...il.com>, Lee Jones <lee@...nel.org>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Eric Dumazet <edumazet@...gle.com>,
	"David S. Miller" <davem@...emloft.net>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Simon Horman <horms@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	Conor Dooley <conor+dt@...nel.org>,
	Andrew Lunn <andrew+netdev@...n.ch>
Subject: Re: [net-next PATCH v18 3/8] dt-bindings: mfd: Document support for
 Airoha AN8855 Switch SoC

On Tue, Sep 16, 2025 at 01:53:27AM +0200, Christian Marangi wrote:
> On Mon, Sep 15, 2025 at 03:19:38PM -0500, Rob Herring wrote:
> > On Mon, Sep 15, 2025 at 12:01:47PM -0500, Rob Herring (Arm) wrote:
> > > 
> > > On Mon, 15 Sep 2025 12:45:39 +0200, Christian Marangi wrote:
> > > > Document support for Airoha AN8855 Switch SoC. This SoC expose various
> > > > peripherals like an Ethernet Switch, a NVMEM provider and Ethernet PHYs.
> > > > 
> > > > It does also support i2c and timers but those are not currently
> > > > supported/used.
> > > > 
> > > > Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> > > > ---
> > > >  .../bindings/mfd/airoha,an8855.yaml           | 173 ++++++++++++++++++
> > > >  1 file changed, 173 insertions(+)
> > > >  create mode 100644 Documentation/devicetree/bindings/mfd/airoha,an8855.yaml
> > > > 
> > > 
> > > My bot found errors running 'make dt_binding_check' on your patch:
> > > 
> > > yamllint warnings/errors:
> > > 
> > > dtschema/dtc warnings/errors:
> > > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/airoha,an8855.yaml:
> > > 	Error in referenced schema matching $id: http://devicetree.org/schemas/nvmem/airoha,an8855-efuse.yaml
> > > 	Tried these paths (check schema $id if path is wrong):
> > > 	/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/nvmem/airoha,an8855-efuse.yaml
> > > 	/usr/local/lib/python3.13/dist-packages/dtschema/schemas/nvmem/airoha,an8855-efuse.yaml
> > > 
> > > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mfd/airoha,an8855.example.dtb: soc@1 (airoha,an8855): efuse: {'compatible': ['airoha,an8855-efuse'], '#nvmem-cell-cells': 0, 'nvmem-layout': {'compatible': ['fixed-layout'], '#address-cells': 1, '#size-cells': 1, 'shift-sel-port0-tx-a@c': {'reg': [[12, 4]], 'phandle': 3}, 'shift-sel-port0-tx-b@10': {'reg': [[16, 4]], 'phandle': 4}, 'shift-sel-port0-tx-c@14': {'reg': [[20, 4]], 'phandle': 5}, 'shift-sel-port0-tx-d@18': {'reg': [[24, 4]], 'phandle': 6}, 'shift-sel-port1-tx-a@1c': {'reg': [[28, 4]], 'phandle': 7}, 'shift-sel-port1-tx-b@20': {'reg': [[32, 4]], 'phandle': 8}, 'shift-sel-port1-tx-c@24': {'reg': [[36, 4]], 'phandle': 9}, 'shift-sel-port1-tx-d@28': {'reg': [[40, 4]], 'phandle': 10}}} should not be valid under {'description': "Can't find referenced schema: http://devicetree.org/schemas/nvmem/airoha,an8855-efuse.yaml#"}
> > > 	from schema $id: http://devicetree.org/schemas/mfd/airoha,an8855.yaml#
> > > Documentation/devicetree/bindings/mfd/airoha,an8855.example.dtb: /example-0/mdio/soc@...fuse: failed to match any schema with compatible: ['airoha,an8855-efuse']
> > 
> > Why are we on v18 and still getting errors? I only review patches 
> > without errors.
> 
> Hi Rob,
> 
> the problem is that the MFD driver and the schema patch subset of this
> series has been picked separately and are now in linux-next.

Link for MFD driver? I don't see the MFD driver in linux-next.
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/drivers/mfd

> I tried to make the bot happy by using base-commit but it doesn't seem
> to work. Any hint for this? 
> 
> The errors comes from the missing efuse schema.

So the efuse schema is in the nvmem tree and this schema needs to go
through the mfd tree.

For v17, you used "base-commit: 04b74f665961599e807b24af28099a29d691b18c":
https://lore.kernel.org/netdev/20250911133929.30874-4-ansuelsmth@gmail.com/
I ran "git show", after fetching linux-next, where all trees should be
included, and didn't find this commit. What does it represent?