linux-kernel - Re: [PATCHv1 3/9] soc: amlogic: meson-ee-pwrc: Add hdmi power domain Meson g12a SoCs

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Date:   Mon, 3 May 2021 20:59:10 +0530
From:   Anand Moon <linux.amoon@...il.com>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc:     devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-amlogic@...ts.infradead.org,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>
Subject: Re: [PATCHv1 3/9] soc: amlogic: meson-ee-pwrc: Add hdmi power domain
 Meson g12a SoCs

Hi Martin,

On Mon, 3 May 2021 at 20:37, Martin Blumenstingl
<martin.blumenstingl@...glemail.com> wrote:
>
> Hi Anand,
>
> On Mon, May 3, 2021 at 4:58 PM Anand Moon <linux.amoon@...il.com> wrote:
> >
> > As per the S922X datasheet add hdmi power domain
> > controller for Meson g12a and g12b SoCs.
> >
> > Cc: Neil Armstrong <narmstrong@...libre.com>
> > Signed-off-by: Anand Moon <linux.amoon@...il.com>
> > ---
> >  drivers/soc/amlogic/meson-ee-pwrc.c          | 5 +++++
> >  include/dt-bindings/power/meson-g12a-power.h | 1 +
> >  2 files changed, 6 insertions(+)
> >
> > diff --git a/drivers/soc/amlogic/meson-ee-pwrc.c b/drivers/soc/amlogic/meson-ee-pwrc.c
> > index 2e07ddf2d6a6..ec402c4ab931 100644
> > --- a/drivers/soc/amlogic/meson-ee-pwrc.c
> > +++ b/drivers/soc/amlogic/meson-ee-pwrc.c
> > @@ -154,6 +154,10 @@ static struct meson_ee_pwrc_mem_domain gxbb_pwrc_mem_vpu[] = {
> >         VPU_HHI_MEMPD(HHI_MEM_PD_REG0),
> >  };
> >
> > +static struct meson_ee_pwrc_mem_domain meson_pwrc_mem_hdmi[] = {
> > +       { HHI_MEM_PD_REG0, GENMASK(15, 8) },
> > +};
> > +
> the VPU power domain already includes:
>   VPU_HHI_MEMPD(HHI_MEM_PD_REG0),
> whereas VPU_HHI_MEMPD is bits[15:8]
>
> Having two power domains which are managing the same registers sounds
> like it'll be causing some trouble
> So for now this is (as I am not even sure what the goal here is):
> NACKed-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
>

Ok, thanks. On the line of Ethernet PD, I tried to add this accordingly.
whenever I try something new it fails. Please ignore this series.

> Best regards,
> Martin

Thanks
-Anand