linux-kernel - Re: [PATCH] PM / OPP: Add support for multiple regulators

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Message-ID: <20200212081340.vcfd3t5w5pgxfuha@vireshk-i7>
Date:   Wed, 12 Feb 2020 13:43:40 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Nicolas Boichat <drinkcat@...omium.org>
Cc:     Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] PM / OPP: Add support for multiple regulators

On 12-02-20, 15:55, Nicolas Boichat wrote:
> The OPP table can contain multiple voltages and regulators, and
> implementing that logic does not add a lot of code or complexity,
> so let's modify _generic_set_opp_regulator to support that use
> case.
> 
> Signed-off-by: Nicolas Boichat <drinkcat@...omium.org>

This is already supported in a different way. See how following driver
does this (hint dev_pm_opp_register_set_opp_helper()).

drivers/opp/ti-opp-supply.c

The problem with a generic solution is that we can't assume an order
for programming of the regulators, as this can be complex on few
platforms.

-- 
viresh