From: nsekhar@ti•com (Sekhar Nori)
To: linux-arm-kernel@lists•infradead.org
Subject: [Query] PM runtime API
Date: Tue, 2 Apr 2013 16:10:06 +0530 [thread overview]
Message-ID: <515AB586.1090100@ti.com> (raw)
In-Reply-To: <CA+V-a8su4DDRudniqf8zAEb8Vmcbk4U6gtVLUOmOAm+n3t-PvQ@mail.gmail.com>
On 4/2/2013 4:05 PM, Prabhakar Lad wrote:
> Hi Kevin/Sekhar,
>
> I am porting the VPSS davinci driver to pm runtime API. This driver uses two
> clocks vpss_master and vpss_slave. The driver was initially using common clock
> framework, now when migrated i see only one clock enabled.
>
> 1: Does pm runtime match only with the device id to enable the clock ?
>
> 2:
> CLK("vpss", "master", &vpss_master_clk),
> CLK("vpss", "slave", &vpss_slave_clk),
> If I provide above two clock lookups pm runtime doesnt enable
> them, but If I set
> the connection id as NULL then only the master clock gets enabled.
>
> My understanding is that pm runtime matches upon the device id for the
> first entry and only enables it.
>
> Any inputs/suggestion how to handle it.
I think you need to tell pm_runtime about the con_ids. See the
initialization of pm_clk_notifier_block in
arch/arm/mach-davinci/pm_domain.c. There is a list of known con_ids that
need to passed.
Thanks,
Sekhar
next prev parent reply other threads:[~2013-04-02 10:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-02 10:35 [Query] PM runtime API Prabhakar Lad
2013-04-02 10:40 ` Sekhar Nori [this message]
2013-04-02 10:52 ` Prabhakar Lad
2013-04-02 10:56 ` Sekhar Nori
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