linux-kernel - Re: [PATCH 1/2] soc: imx: gpcv2: Add support for imx8mm

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Date:   Mon, 2 Dec 2019 09:17:59 -0600
From:   Adam Ford <aford173@...il.com>
To:     Philipp Zabel <p.zabel@...gutronix.de>
Cc:     arm-soc <linux-arm-kernel@...ts.infradead.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree <devicetree@...r.kernel.org>,
        Fabio Estevam <festevam@...il.com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>
Subject: Re: [PATCH 1/2] soc: imx: gpcv2: Add support for imx8mm

On Mon, Dec 2, 2019 at 8:28 AM Philipp Zabel <p.zabel@...gutronix.de> wrote:
>
> On Fri, 2019-11-29 at 17:41 -0600, Adam Ford wrote:
> > The technical reference manual for both the i.MX8MQ and i.MX8M Mini
> > appear to show the same register definitions and locations for the
> > General Power Controller (GPC).
> >
> > This patch expands the table of compatible SoC's to include
> > the i.MX8m Mini
> >
> > Signed-off-by: Adam Ford <aford173@...il.com>
> >
> > diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c
> > index b0dffb06c05d..67c54cbb6c81 100644
> > --- a/drivers/soc/imx/gpcv2.c
> > +++ b/drivers/soc/imx/gpcv2.c
> > @@ -641,6 +641,7 @@ static int imx_gpcv2_probe(struct platform_device *pdev)
> >  static const struct of_device_id imx_gpcv2_dt_ids[] = {
> >       { .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, },
> >       { .compatible = "fsl,imx8mq-gpc", .data = &imx8m_pgc_domain_data, },
> > +     { .compatible = "fsl,imx8mm-gpc", .data = &imx8m_pgc_domain_data, },
>
> According to the 5.2.5.1 "PGC power domains" chapters in both the i.MX
> 8M Dual/8M QuadLite/8M Quad and i.MX 8M Mini Applications Processor
> Reference Manuals (Rev.1), the two SoCs have a different list of power
> domains:

Shoot.  I needed to go further down in the table.  I stopped after the
first four.

Sorry for the noise.

adam
>
> i.MX8MQ:
>         PGC_C0
>         PGC_C1
>         PGC_C2
>         PGC_C3
>         PGC_SCU
>         PGC_MF
>         PGC_OTG1
>         PGC_OTG2
>         PGC_PCIE
>         PGC_MIPI
>         PGC_DDR1
>         PGC_DDR2
>         PGC_VPU
>         PGC_GPU
>         PGC_HDMI
>         PGC_DISP
>         PGC_MIPI_CSI1
>         PGC_MIPI_CSI2
>         PGC_PCIE2
>
> i.MX8MM:
>         PGC_C0
>         PGC_C1
>         PGC_C2
>         PGC_C3
>         PGC_SCU
>         PGC_NOC
>         PGC_PCIE
>         PGC_OTG1
>         PGC_OTG2
>         PGC_DDR1
>         PGC_DISPMIX
>         GPC_MIPI
>         PGC_GPUMIX
>         PGC_GPU_3D
>         PGC_GPU_2D
>         PGC_VPUMIX
>         PGC_VPU_G1
>         PGC_VPU_G2
>         PGC_VPU_H1
>
> regards
> Philipp
>