linux-kernel - Re: [PATCH v2 1/5] dt-bindings: clock: Add i.MX91 clock support

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Date: Tue, 4 Jun 2024 10:03:06 -0500
From: Rob Herring <robh@...nel.org>
To: Pengfei Li <pengfei.li_1@....com>
Cc: krzk+dt@...nel.org, conor+dt@...nel.org, abelvesa@...nel.org,
	mturquette@...libre.com, sboyd@...nel.org, shawnguo@...nel.org,
	s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
	ping.bai@....com, ye.li@....com, peng.fan@....com,
	aisheng.dong@....com, frank.li@....com, tharvey@...eworks.com,
	alexander.stein@...tq-group.com, gregor.herburger@...tq-group.com,
	hiago.franco@...adex.com, joao.goncalves@...adex.com,
	hvilleneuve@...onoff.com, Markus.Niebel@...tq-group.com,
	m.felsch@...gutronix.de, m.othacehe@...il.com, bhelgaas@...gle.com,
	leoyang.li@....com, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 1/5] dt-bindings: clock: Add i.MX91 clock support

On Wed, May 29, 2024 at 07:26:30PM -0700, Pengfei Li wrote:
> i.MX91 has similar Clock Control Module(CCM) design as i.MX93.
> Add a new compatible string for i.MX91.
> 
> Signed-off-by: Pengfei Li <pengfei.li_1@....com>
> Reviewed-by: Frank Li <Frank.Li@....com>
> ---
>  Documentation/devicetree/bindings/clock/imx93-clock.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/clock/imx93-clock.yaml b/Documentation/devicetree/bindings/clock/imx93-clock.yaml
> index ccb53c6b96c1..98c0800732ef 100644
> --- a/Documentation/devicetree/bindings/clock/imx93-clock.yaml
> +++ b/Documentation/devicetree/bindings/clock/imx93-clock.yaml
> @@ -16,6 +16,7 @@ description: |
>  properties:
>    compatible:
>      enum:
> +      - fsl,imx91-ccm
>        - fsl,imx93-ccm

Should fallback to fsl,imx93-ccm? Being a superset should be ok because 
your DT should never use the non-existent clocks. If not, where is the 
driver change?

Rob