linux-kernel - Re: [PATCH v1 0/2] Add imx8m power domain driver

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Date:   Fri, 2 Apr 2021 20:11:18 +0200
From:   Adrien Grassein <adrien.grassein@...il.com>
To:     Abel Vesa <abel.vesa@....com>
Cc:     Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, arnd@...db.de,
        peng.fan@....com, Anson.Huang@....com,
        DTML <devicetree@...r.kernel.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 0/2] Add imx8m power domain driver

Le ven. 2 avr. 2021 à 19:58, Abel Vesa <abel.vesa@....com> a écrit :
>
> On 21-04-02 19:48:41, Adrien Grassein wrote:
> > Hi,
> >
> > Le ven. 2 avr. 2021 à 19:42, Abel Vesa <abel.vesa@....com> a écrit :
> > >
> > > On 21-04-02 18:45:04, Adrien Grassein wrote:
> > > > Hi,
> > > >
> > > > this patch et aims to add the support of the i.MX 8 Power Domain driver.
> > > > Some devices (like usbotg2) can't work without this patch as their
> > > > attached power domain are down.
> > > >
> > > > The original drivr was taken from le imx kernel and aapted to fit with
> > > > the actual mainline (minor fixes).
> > > >
> > > > Thanks,
> > > >
> > >
> > > Big NACK for the whole series.
> > >
> > > This approach has already been rejected upstream.
> >
> > So what is the correct approach?
> > At this point otg2 node of imx8mm is not working at all (and blocks the whole
> > boot of the kernel)
> >
>
> Have a look at this thread:
>
> https://lkml.org/lkml/2020/4/27/706
>
Understood, so I will try to update the gpc driver (at least for otg).

> > >
> > > Plus, you changed the original author, this work was originally done by Jacky Bai.
> >
> > I have not changed this, the original author is not mentioned on the
> > original patch.
>
> Here is the original commit:
>
> https://github.com/Freescale/linux-fslc/commit/7ebcf5ccf423afe4ccd9c53ef204018b0b653ce0
>
>
> >
> > >
> > > > Adrien Grassein (2):
> > > >   dt-bindings: power: Add documentation for imx8m power domain driver
> > > >   soc: imx: add Power Domain driver for i.MX8M(M|N|P)
> > > >
> > > >  .../bindings/power/fsl,imx-power-domain.yaml  |  89 +++++++
> > > >  MAINTAINERS                                   |  10 +
> > > >  drivers/soc/imx/Kconfig                       |   7 +
> > > >  drivers/soc/imx/Makefile                      |   1 +
> > > >  drivers/soc/imx/imx8m_pm_domains.c            | 233 ++++++++++++++++++
> > > >  include/dt-bindings/power/imx8mm-power.h      |  21 ++
> > > >  include/dt-bindings/power/imx8mn-power.h      |  15 ++
> > > >  include/dt-bindings/power/imx8mp-power.h      |  28 +++
> > > >  include/soc/imx/imx_sip.h                     |  12 +
> > > >  9 files changed, 416 insertions(+)
> > > >  create mode 100644 Documentation/devicetree/bindings/power/fsl,imx-power-domain.yaml
> > > >  create mode 100644 drivers/soc/imx/imx8m_pm_domains.c
> > > >  create mode 100644 include/dt-bindings/power/imx8mm-power.h
> > > >  create mode 100644 include/dt-bindings/power/imx8mn-power.h
> > > >  create mode 100644 include/dt-bindings/power/imx8mp-power.h
> > > >  create mode 100644 include/soc/imx/imx_sip.h
> > > >
> > > > --
> > > > 2.25.1
> > > >
> >
> > Thanks,

Thanks,