linux-kernel - RE: [PATCH 3/3] spi: dt-bindings: Add wait state polling flag

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Message-ID: <DM4PR12MB57693FA8342B9A55D787A87DC3129@DM4PR12MB5769.namprd12.prod.outlook.com>
Date:   Thu, 17 Mar 2022 09:03:13 +0000
From:   Krishna Yarlagadda <kyarlagadda@...dia.com>
To:     Mikko Perttunen <cyndis@...si.fi>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        Ashish Singhal <ashishsingha@...dia.com>
CC:     Sowjanya Komatineni <skomatineni@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 3/3] spi: dt-bindings: Add wait state polling flag

> -----Original Message-----
> From: Mikko Perttunen <cyndis@...si.fi>
> Sent: 17 March 2022 14:13
> To: Krishna Yarlagadda <kyarlagadda@...dia.com>; broonie@...nel.org; thierry.reding@...il.com; Jonathan Hunter
> <jonathanh@...dia.com>; linux-spi@...r.kernel.org; linux-tegra@...r.kernel.org; Ashish Singhal <ashishsingha@...dia.com>
> Cc: Sowjanya Komatineni <skomatineni@...dia.com>; Laxman Dewangan <ldewangan@...dia.com>; robh+dt@...nel.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH 3/3] spi: dt-bindings: Add wait state polling flag
> 
> External email: Use caution opening links or attachments
> 
> 
> On 3/17/22 03:20, Krishna Yarlagadda wrote:
> > Add flag to enable tpm wait state polling and Tegra Grace binding.
> >
> > Signed-off-by: Krishna Yarlagadda <kyarlagadda@...dia.com>
> > ---
> >   .../devicetree/bindings/spi/nvidia,tegra210-quad.yaml       | 6 ++++++
> >   1 file changed, 6 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> > index 0296edd1de22..88b00fcad210 100644
> > --- a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> > +++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> > @@ -20,6 +20,7 @@ properties:
> >         - nvidia,tegra186-qspi
> >         - nvidia,tegra194-qspi
> >         - nvidia,tegra234-qspi
> > +      - nvidia,tegra-grace-qspi
> 
> nvidia,tegra241-qspi. Similarly in other places that refer to the chip name.
Agree. Will change it to be consistent with rest of the chip patches.
> 
> Mikko
> 
> >
> >     reg:
> >       maxItems: 1
> > @@ -57,6 +58,11 @@ patternProperties:
> >         spi-tx-bus-width:
> >           enum: [1, 2, 4]
> >
> > +      nvidia,wait-polling:
> > +        description:
> > +          Enable TPM wait state polling on supported chips.
> > +     type: boolean
> > +
> >         nvidia,tx-clk-tap-delay:
> >           description:
> >             Delays the clock going out to device with this tap value.