linux-kernel - Re: [PATCH v10 01/19] dt-bindings: memory: tegra20: emc: Document opp-supported-hw property

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Date:   Mon, 30 Nov 2020 11:48:18 +0200
From:   Georgi Djakov <georgi.djakov@...aro.org>
To:     Dmitry Osipenko <digetx@...il.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Peter De Schrijver <pdeschrijver@...dia.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Mikko Perttunen <cyndis@...si.fi>,
        Viresh Kumar <vireshk@...nel.org>,
        Peter Geis <pgwipeout@...il.com>,
        Nicolas Chauvet <kwizart@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>
Cc:     linux-tegra@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v10 01/19] dt-bindings: memory: tegra20: emc: Document
 opp-supported-hw property

On 23.11.20 2:27, Dmitry Osipenko wrote:
> Document opp-supported-hw property, which is not strictly necessary to
> have on Tegra20, but it's very convenient to have because all other SoC
> core devices will use hardware versioning, and thus, it's good to maintain
> the consistency.

Hi Dmitry,

I believe Krzysztof is waiting for Ack on the binding before merging
this patch (and the rest), but unfortunately it was not sent to the
DT mailing list for review.

Thanks,
Georgi

> 
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---
>   .../bindings/memory-controllers/nvidia,tegra20-emc.txt      | 6 ++++++
>   1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-emc.txt b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-emc.txt
> index 67ac8d1297da..fe99ce1013bd 100644
> --- a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-emc.txt
> +++ b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-emc.txt
> @@ -16,6 +16,12 @@ Properties:
>   - #interconnect-cells : Should be 0.
>   - operating-points-v2: See ../bindings/opp/opp.txt for details.
>   
> +For each opp entry in 'operating-points-v2' table:
> +- opp-supported-hw: One bitfield indicating SoC process ID mask
> +
> +	A bitwise AND is performed against this value and if any bit
> +	matches, the OPP gets enabled.
> +
>   Optional properties:
>   - core-supply: Phandle of voltage regulator of the SoC "core" power domain.
>   
>