linux-kernel - Re: [PATCH v4 4/5] soc: ti: Add ti_sci_pm

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Message-ID: <00909b96-8cb1-2c57-6072-f899dae3dcad@oracle.com>
Date:   Sun, 12 Mar 2017 10:20:51 -0700
From:   "santosh.shilimkar@...cle.com" <santosh.shilimkar@...cle.com>
To:     Dave Gerlach <d-gerlach@...com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Kevin Hilman <khilman@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        Nishanth Menon <nm@...com>, Keerthy <j-keerthy@...com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Tero Kristo <t-kristo@...com>,
        Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH v4 4/5] soc: ti: Add ti_sci_pm_domains driver

On 3/7/17 2:22 AM, Dave Gerlach wrote:
> Introduce a ti_sci_pm_domains driver to act as a generic pm domain
> provider to allow each device to attach and associate it's ti-sci-id so
> that it can be controlled through the TI SCI protocol.
>
> This driver implements a simple genpd where each device node has a
> phandle to the power domain node and also must provide an index which
> represents the ID to be passed with TI SCI representing the device using
> a single phandle cell. The driver manually parses the phandle to get the
> cell value. Through this interface the genpd dev_ops start and stop
> hooks will use TI SCI to turn on and off each device as determined by
> pm_runtime usage.
>
> Signed-off-by: Keerthy <j-keerthy@...com>
> Signed-off-by: Nishanth Menon <nm@...com>
> Signed-off-by: Dave Gerlach <d-gerlach@...com>
> ---
> v3->v4:
>  Parse phandle directly instead of reading ti,sci-id property per device.

Acked-by: Santosh Shilimkar <ssantosh@...nel.org>