linux-kernel - RE: [PATCH v5 1/4] dt-bindings: clock: support i.MX95 BLK CTL module

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Date: Sun, 31 Mar 2024 11:58:40 +0000
From: Peng Fan <peng.fan@....com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, "Peng Fan (OSS)"
	<peng.fan@....nxp.com>, Michael Turquette <mturquette@...libre.com>, Stephen
 Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam
	<festevam@...il.com>, Abel Vesa <abelvesa@...nel.org>
CC: "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"imx@...ts.linux.dev" <imx@...ts.linux.dev>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v5 1/4] dt-bindings: clock: support i.MX95 BLK CTL module

> Subject: Re: [PATCH v5 1/4] dt-bindings: clock: support i.MX95 BLK CTL
> module
> 
> On 24/03/2024 08:52, Peng Fan (OSS) wrote:
> > From: Peng Fan <peng.fan@....com>
> >
> > i.MX95 includes BLK CTL module in several MIXes, such as VPU_CSR in
> > VPUMIX, CAMERA_CSR in CAMERAMIX and etc.
> >
> > The BLK CTL module is used for various settings of a specific MIX,
> > such as clock, QoS and etc.
> >
> > This patch is to add some BLK CTL modules that has clock features.
> >
> > Signed-off-by: Peng Fan <peng.fan@....com>
> > ---
> >  .../bindings/clock/nxp,imx95-blk-ctl.yaml          | 56
> ++++++++++++++++++++++
> >  1 file changed, 56 insertions(+)
> >
> > diff --git
> > a/Documentation/devicetree/bindings/clock/nxp,imx95-blk-ctl.yaml
> > b/Documentation/devicetree/bindings/clock/nxp,imx95-blk-ctl.yaml
> > new file mode 100644
> > index 000000000000..2dffc02dcd8b
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/clock/nxp,imx95-blk-ctl.yaml
> > @@ -0,0 +1,56 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> > +---
> > +$id:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> > +cetree.org%2Fschemas%2Fclock%2Fnxp%2Cimx95-blk-
> ctl.yaml%23&data=05%7C
> >
> +02%7Cpeng.fan%40nxp.com%7Cd713a861f155495c922a08dc4d01346d%7
> C686ea1d3
> >
> +bc2b4c6fa92cd99c5c301635%7C0%7C0%7C638469914764776121%7CUnk
> nown%7CTWF
> >
> +pbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJX
> VCI6
> >
> +Mn0%3D%7C0%7C%7C%7C&sdata=rW7%2BGedk3bloLsAqBIkMlXQNjDmRd
> Z0cHacQtKxjc
> > +mQ%3D&reserved=0
> > +$schema:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> > +cetree.org%2Fmeta-
> schemas%2Fcore.yaml%23&data=05%7C02%7Cpeng.fan%40nx
> >
> +p.com%7Cd713a861f155495c922a08dc4d01346d%7C686ea1d3bc2b4c6fa9
> 2cd99c5c
> >
> +301635%7C0%7C0%7C638469914764787067%7CUnknown%7CTWFpbGZs
> b3d8eyJWIjoiM
> >
> +C4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7
> C%7C%7
> >
> +C&sdata=tFzM3%2BxuQVsit9lCEnNz8kYnZjT%2FXj%2Fdqzk9DB9oy1c%3D&r
> eserved
> > +=0
> > +
> > +title: NXP i.MX95 Block Control
> > +
> > +maintainers:
> > +  - Peng Fan <peng.fan@....com>
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - enum:
> > +          - nxp,imx95-lvds-csr
> > +          - nxp,imx95-display-csr
> > +          - nxp,imx95-camera-csr
> > +          - nxp,imx95-vpu-csr
> > +      - const: syscon
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    maxItems: 1
> > +
> > +  '#clock-cells':
> > +    const: 1
> > +    description:
> > +      The clock consumer should specify the desired clock by having the
> clock
> > +      ID in its "clocks" phandle cell. See
> > +      include/dt-bindings/clock/nxp,imx95-clock.h
> 
> In such case, put header as your first patch in the patchset. I don't understand
> why it was split in the first place...

Rob gave a comment in v4, so I split the headers.
"
If this number can change, then it is not ABI and doesn't go in this 
header. With that dropped,
"

https://lore.kernel.org/all/20240315165422.GA1472059-robh@kernel.org/

Thanks,
Peng.
> 
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> Best regards,
> Krzysztof