linux-kernel - Re: [PATCH V2 2/4] opp: of: Support multiple suspend OPPs defined in DT

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Date:   Thu, 25 Jul 2019 07:56:23 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Anson.Huang@....com
Cc:     vireshk@...nel.org, nm@...com, sboyd@...nel.org,
        robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        leonard.crestez@....com, p.zabel@...gutronix.de, ping.bai@....com,
        daniel.baluta@....com, l.stach@...gutronix.de, abel.vesa@....com,
        angus@...ea.ca, andrew.smirnov@...il.com, ccaione@...libre.com,
        agx@...xcpu.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, Linux-imx@....com
Subject: Re: [PATCH V2 2/4] opp: of: Support multiple suspend OPPs defined in
 DT

On 09-07-19, 16:00, Anson.Huang@....com wrote:
> From: Anson Huang <Anson.Huang@....com>
> 
> With property "opp-supported-hw" introduced, the OPP table
> in DT could be a large OPP table and ONLY a subset of OPPs
> are available, based on the version of the hardware running
> on. That introduces restriction of using "opp-suspend"
> property to define the suspend OPP, as we are NOT sure if the
> OPP containing "opp-suspend" property is available for the
> hardware running on, and the of opp core does NOT allow multiple
> suspend OPPs defined in DT OPP table.
> 
> To eliminate this restrition, make of opp core allow multiple
> suspend OPPs defined in DT, and pick the OPP with highest rate
> and with "opp-suspend" property present to be suspend OPP, it
> can speed up the suspend/resume process.
> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
> No changes.
> ---
>  drivers/opp/of.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)

Applied. Thanks.

-- 
viresh