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Message-ID: <DB6PR0402MB27600201A17238D3D022A80F88339@DB6PR0402MB2760.eurprd04.prod.outlook.com>
Date: Sat, 12 Jun 2021 12:20:13 +0000
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: Shawn Guo <shawnguo@...nel.org>,
"Peng Fan (OSS)" <peng.fan@....nxp.com>
CC: "robh+dt@...nel.org" <robh+dt@...nel.org>,
"s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
"kernel@...gutronix.de" <kernel@...gutronix.de>,
"festevam@...il.com" <festevam@...il.com>,
dl-linux-imx <linux-imx@....com>,
"p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
"l.stach@...gutronix.de" <l.stach@...gutronix.de>,
"krzk@...nel.org" <krzk@...nel.org>,
"agx@...xcpu.org" <agx@...xcpu.org>,
"marex@...x.de" <marex@...x.de>,
"andrew.smirnov@...il.com" <andrew.smirnov@...il.com>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Jacky Bai <ping.bai@....com>,
"frieder.schrempf@...tron.de" <frieder.schrempf@...tron.de>,
"aford173@...il.com" <aford173@...il.com>,
Abel Vesa <abel.vesa@....com>, Rob Herring <robh@...nel.org>
Subject: RE: [PATCH V6 2/4] Documentation: bindings: clk: Add bindings for
i.MX BLK_CTL
> Subject: Re: [PATCH V6 2/4] Documentation: bindings: clk: Add bindings for
> i.MX BLK_CTL
>
> On Sat, May 22, 2021 at 09:42:47PM +0800, Peng Fan (OSS) wrote:
> > From: Peng Fan <peng.fan@....com>
> >
> > Document the i.MX BLK_CTL with its devicetree properties.
> >
> > Each BLK CTL have different power domain inputs and they have
> > different names, so we are not able to list all the power domain names
> > for each BLK CTL here.
> >
> > For example:
> > i.MX8MM dispmix BLK CTL, it has
> > power-domains = <&pgc_dispmix>, <&pgc_mipi>;
> > power-domain-names = "dispmix", "mipi";
> >
> > vpumix BLK CTL, it has
> > power-domains = <&vpumix_pd>, <&vpu_g1_pd>, <&vpu_g2_pd>,
> > <&vpu_h1_pd>;
> > power-domain-names = "vpumix", "g1", "g2", "h1";
> >
> > Reviewed-by: Rob Herring <robh@...nel.org>
> > Signed-off-by: Peng Fan <peng.fan@....com>
>
> Can we be consistent in using 'dt-bindings: ...' as prefix?
Yes. Fix in v7.
Thanks,
Peng.
>
> Shawn
>
> > ---
> > .../bindings/soc/imx/fsl,imx-blk-ctl.yaml | 66
> +++++++++++++++++++
> > 1 file changed, 66 insertions(+)
> > create mode 100644
> > Documentation/devicetree/bindings/soc/imx/fsl,imx-blk-ctl.yaml
> >
> > diff --git
> > a/Documentation/devicetree/bindings/soc/imx/fsl,imx-blk-ctl.yaml
> > b/Documentation/devicetree/bindings/soc/imx/fsl,imx-blk-ctl.yaml
> > new file mode 100644
> > index 000000000000..a66f11acc6b4
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx-blk-ctl.yaml
> > @@ -0,0 +1,66 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> > +---
> > +$id:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> >
> +cetree.org%2Fschemas%2Fsoc%2Fimx%2Ffsl%2Cimx-blk-ctl.yaml%23&
> data
> >
> +=04%7C01%7Cpeng.fan%40nxp.com%7C8ef49946599c41046e5308d92d3b7
> 2df%7C68
> >
> +6ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637590555623663011%
> 7CUnknown
> >
> +%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1ha
> WwiLC
> >
> +JXVCI6Mn0%3D%7C1000&sdata=%2FvyX8r5Dc0nWjRaLASXKvs7JGKuP
> 4iwMQPMNa
> > +u93SH4%3D&reserved=0
> > +$schema:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> >
> +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=04%7C01%7Cpe
> ng.fan%
> >
> +40nxp.com%7C8ef49946599c41046e5308d92d3b72df%7C686ea1d3bc2b4c
> 6fa92cd9
> >
> +9c5c301635%7C0%7C0%7C637590555623663011%7CUnknown%7CTWFpb
> GZsb3d8eyJWI
> >
> +joiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7
> C1000&
> >
> +amp;sdata=j25%2F6NIDdiN3weLr0xMDM5z91P9KXDLEzIRlf7A4OPs%3D&a
> mp;reserv
> > +ed=0
> > +
> > +title: NXP i.MX BLK_CTL
> > +
> > +maintainers:
> > + - Peng Fan <peng.fan@....com>
> > +
> > +description:
> > + i.MX BLK_CTL is a conglomerate of different GPRs that are
> > + dedicated to a specific subsystem. It usually contains
> > + clocks and resets amongst other things. Here we take the clocks
> > + and resets as virtual PDs, the reason we could not take it as
> > + clock provider is there is A/B lock issue between power domain
> > + and clock.
> > +
> > +properties:
> > + compatible:
> > + items:
> > + - enum:
> > + - fsl,imx8mm-dispmix-blk-ctl
> > + - fsl,imx8mm-vpumix-blk-ctl
> > + - const: syscon
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + "#power-domain-cells":
> > + const: 1
> > +
> > + power-domains:
> > + minItems: 1
> > + maxItems: 32
> > +
> > + power-domain-names:
> > + minItems: 1
> > + maxItems: 32
> > +
> > + clocks:
> > + minItems: 1
> > + maxItems: 32
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - power-domains
> > + - power-domain-names
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > + #include <dt-bindings/clock/imx8mm-clock.h>
> > +
> > + dispmix_blk_ctl: blk-ctl@...28000 {
> > + compatible = "fsl,imx8mm-dispmix-blk-ctl", "syscon";
> > + reg = <0x32e28000 0x100>;
> > + #power-domain-cells = <1>;
> > + power-domains = <&pgc_dispmix>, <&pgc_mipi>;
> > + power-domain-names = "dispmix", "mipi";
> > + clocks = <&clk IMX8MM_CLK_DISP_ROOT>, <&clk
> IMX8MM_CLK_DISP_AXI_ROOT>,
> > + <&clk IMX8MM_CLK_DISP_APB_ROOT>;
> > + };
> > --
> > 2.30.0
> >
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