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From: Stephen Boyd <sboyd@codeaurora.org>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Rafael Wysocki <rjw@rjwysocki.net>,
	Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
	linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org,
	Vincent Guittot <vincent.guittot@linaro.org>,
	robh@kernel.org, d-gerlach@ti.com, broonie@kernel.org,
	devicetree@vger.kernel.org
Subject: Re: [PATCH V6 08/10] PM / OPP: Allow platform specific custom set_opp() callbacks
Date: Wed, 30 Nov 2016 14:04:19 -0800	[thread overview]
Message-ID: <20161130220419.GL6095@codeaurora.org> (raw)
In-Reply-To: <152e4a2c876449f3e47c206f5120cafdfd48b976.1480481312.git.viresh.kumar@linaro.org>

On 11/30, Viresh Kumar wrote:
> The generic set_opp() handler isn't sufficient for platforms with
> complex DVFS.  For example, some TI platforms have multiple regulators
> for a CPU device. The order in which various supplies need to be
> programmed is only known to the platform code and its best to leave it
> to it.
> 
> This patch implements APIs to register platform specific set_opp()
> callback.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
> Tested-by: Dave Gerlach <d-gerlach@ti.com>
> 
> ---

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>

So this one has the same set/put problem the other APIs has?
Presumably we're going to need to fix and change the API that is
introduced here. Wouldn't it be better to do that first though?

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

  reply	other threads:[~2016-11-30 22:04 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-30  5:14 [PATCH V6 00/10] PM / OPP: Multiple regulator support Viresh Kumar
2016-11-30  5:14 ` [PATCH V6 02/10] PM / OPP: Reword binding supporting multiple regulators per device Viresh Kumar
     [not found] ` <cover.1480481312.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-11-30  5:14   ` [PATCH V6 01/10] PM / OPP: Fix incorrect cpu-supply property in binding Viresh Kumar
2016-11-30  5:14   ` [PATCH V6 03/10] PM / OPP: Don't use OPP structure outside of rcu protected section Viresh Kumar
2016-11-30  5:14   ` [PATCH V6 06/10] PM / OPP: Add infrastructure to manage multiple regulators Viresh Kumar
     [not found]     ` <3b3ce1dac198fb668b97e81490bcbcf03d31e40d.1480481312.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2016-11-30 22:37       ` Stephen Boyd
2016-12-01  0:51         ` Viresh Kumar
2016-12-01 10:59           ` Viresh Kumar
2016-11-30  5:14   ` [PATCH V6 08/10] PM / OPP: Allow platform specific custom set_opp() callbacks Viresh Kumar
2016-11-30 22:04     ` Stephen Boyd [this message]
     [not found]       ` <20161130220419.GL6095-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-12-01  0:27         ` Viresh Kumar
2016-11-30  5:14   ` [PATCH V6 09/10] PM / OPP: Don't WARN on multiple calls to dev_pm_opp_set_regulators() Viresh Kumar
2016-11-30  5:14   ` [PATCH V6 10/10] PM / OPP: Don't assume platform doesn't have regulators Viresh Kumar
2016-11-30  5:14 ` [PATCH V6 04/10] PM / OPP: Manage supply's voltage/current in a separate structure Viresh Kumar
2016-11-30  5:14 ` [PATCH V6 05/10] PM / OPP: Pass struct dev_pm_opp_supply to _set_opp_voltage() Viresh Kumar
2016-11-30  5:14 ` [PATCH V6 07/10] PM / OPP: Separate out _generic_set_opp() Viresh Kumar

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