Re: [PATCH 3/7] dt-bindings: devfreq: event: rockchip,dfi: add rk3576

From: "Rob Herring (Arm)" <robh@kernel.org>
To: Sebastian Reichel <sebastian.reichel@collabora.com>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 linux-rockchip@lists.infradead.org,
	Chanwoo Choi <cw00.choi@samsung.com>,
	 Kyungmin Park <kyungmin.park@samsung.com>,
	 Jerome Brunet <jbrunet+clk@baylibre.com>,
	 Conor Dooley <conor+dt@kernel.org>,
	linux-kernel@vger.kernel.org,  linux-pm@vger.kernel.org,
	Brian Masney <bmasney+clk@redhat.com>,
	 MyungJoo Ham <myungjoo.ham@samsung.com>,
	devicetree@vger.kernel.org,
	 Sascha Hauer <s.hauer@pengutronix.de>,
	linux-arm-kernel@lists.infradead.org,  linux-clk@vger.kernel.org,
	Stephen Boyd <sboyd@kernel.org>,
	 Heiko Stuebner <heiko@sntech.de>,
	kernel@collabora.com,
	 Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Subject: Re: [PATCH 3/7] dt-bindings: devfreq: event: rockchip,dfi: add rk3576
Date: Fri, 18 Sep 2026 11:41:20 -0500	[thread overview]
Message-ID: <178974864695.290479.16274908479214373555.robh@kernel.org> (raw)
In-Reply-To: <20260917-b4-rockchip-dfi-rk3576-support-v1-3-a5752a29f7bd@collabora.com>

On Thu, 17 Sep 2026 16:04:09 +0200, Sebastian Reichel wrote:
> From: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
> 
> The RK3576 has DFI hardware for monitoring the DDR's bandwidth much
> like other rockchip SoCs do. Unlike the RK3588 however, it only has two
> memory channels, so only two per-channel pclks for DFI.
> 
> Add a compatible for this SoC's variant, and add it to the conditionals
> at the bottom of the bindings file.
> 
> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---
>  .../bindings/devfreq/event/rockchip,dfi.yaml       | 23 ++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml: properties:clock-names: {'minItems': 1, 'maxItems': 4, 'items': [{'enum': ['pclk_ddr_mon', 'pclk_ddr_mon_ch0']}, {'const': 'pclk_ddr_mon_ch1'}, {'const': 'pclk_ddr_mon_ch2'}, {'const': 'pclk_ddr_mon_ch3'}]} should not be valid under {'required': ['maxItems']}
	hint: "maxItems" is not needed with an "items" list
	from schema $id: http://devicetree.org/meta-schemas/items.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260917-b4-rockchip-dfi-rk3576-support-v1-3-a5752a29f7bd@collabora.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.

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