linux-kernel - Re: [PATCH V2 0/9] arm64: imx8mn: Enable additional power domains and peripherals

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Date:   Fri, 29 Oct 2021 12:22:14 -0500
From:   Adam Ford <aford173@...il.com>
To:     arm-soc <linux-arm-kernel@...ts.infradead.org>
Cc:     Adam Ford-BE <aford@...conembedded.com>,
        Rob Herring <robh+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>,
        NXP Linux Team <linux-imx@....com>,
        Lucas Stach <l.stach@...gutronix.de>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Tim Harvey <tharvey@...eworks.com>, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH V2 0/9] arm64: imx8mn: Enable additional power domains and peripherals

On Sat, Oct 9, 2021 at 11:27 AM Adam Ford <aford173@...il.com> wrote:
>
> The blk-ctrl and the GPCv2 in the i.MX8MN is similar but slightly different to that
> of the i.MX8MM.  This series is based on work from Lucas Stach for i.MX8MM, but
> adapted for i.MX8MN.  With the additional power domains and blk-ctrl enabled,
> additional peripherals like gpu and USB can be enabled.
>
> V2:  Add mising patches for expanding GPCv2 which are necessary
>        to make the blk-ctl operate.
>      Fix clk names
>      Fix missing references to structures in blk-ctl driver to link
>        them to the device tree.
>

I know Rob had some feedback on the DT bindings updates.  I can
address them in V3, I was hoping to get some feedback from this series
from others who may be interested.

I don't know if it's too late to get this into 5.16 or not, but I'll
submit a V3 this weekend.

adam
> Adam Ford (9):
>   soc: imx: gpcv2: keep i.MX8MN gpumix bus clock enabled
>   soc: imx: gpcv2: Add dispmix and mipi domains to imx8mn
>   dt-bindings: power: imx8mn: add defines for DISP blk-ctrl domains
>   dt-bindings: soc: add binding for i.MX8MN DISP blk-ctrl
>   soc: imx: imx8m-blk-ctrl: add i.MX8MN DISP blk-ctrl
>   arm64: dts: imx8mn: add GPC node
>   arm64: dts: imx8mn: put USB controller into power-domains
>   arm64: dts: imx8mn: add DISP blk-ctrl
>   arm64: dts: imx8mn: Enable GPU
>
>  .../soc/imx/fsl,imx8mn-disp-blk-ctrl.yaml     |  97 +++++++++++++++++
>  arch/arm64/boot/dts/freescale/imx8mn.dtsi     | 103 ++++++++++++++++++
>  drivers/soc/imx/gpcv2.c                       |  26 +++++
>  drivers/soc/imx/imx8m-blk-ctrl.c              |  75 ++++++++++++-
>  include/dt-bindings/power/imx8mn-power.h      |   5 +
>  5 files changed, 305 insertions(+), 1 deletion(-)
>  create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx8mn-disp-blk-ctrl.yaml
>
> --
> 2.25.1
>