From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Stephen Boyd <sboyd@codeaurora.org>
Cc: mturquette@baylibre.com, lee.jones@linaro.org,
xuwei5@hisilicon.com, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org
Subject: Re: [PATCH V2] clk: hi6220: Add the hi655x's pmic clock
Date: Wed, 19 Apr 2017 21:47:37 +0200 [thread overview]
Message-ID: <20170419194737.GB2523@mai> (raw)
In-Reply-To: <20170419160005.GS7065@codeaurora.org>
On Wed, Apr 19, 2017 at 09:00:05AM -0700, Stephen Boyd wrote:
> On 04/16, Daniel Lezcano wrote:
> > On Wed, Apr 12, 2017 at 08:02:45AM -0700, Stephen Boyd wrote:
> > > On 04/08, Daniel Lezcano wrote:
[ ... ]
> > > > + ret = clk_hw_register_clkdev(&hi655x_clk->clk_hw, clk_name, NULL);
> > >
> > > Missed this last time. Do you use this clkdev lookup? The name is
> > > usually supposed to be based on what the device is expecting,
> > > instead of clk_name, and we would want some device name for the
> > > third argument here.
> >
> > I'm not sure to get your comment. Are you saying the clk_name should be the
> > third argument?
> >
> >
>
> Sorry, no. I meant that con_id is typically something like "core"
> or "ahb" or something like that, and dev_id is something like
> "a456002.pmic_device" or whatever dev_name(pmic_dev) would return for
> the consuming device. That way when we call clk_get(dev, "core")
> it will find the lookup with "core" and "a456002.pmic_device" to
> match up the clk lookup.
>
> If anything, the clk_name should just go into the con_id for now,
> and then it will need to be a globally unique identifier for the
> clk. But that is going against how clkdev is supposed to be used.
> Hence the question if you even need to use it. If not, just don't
> add it. I can fix up v3 of this patch to put clk_name back at
> con_id if you like. No need to resend.
Ok, I'm not very used with the CCF, so perhaps clk_name is not needed at all. I
gave a try with the following combination:
- con_id = NULL, dev_id = clk_name
- con_id = clk_name, dev_id = NULL
- con_id = NULL, dev_id = NULL
All worked.
And finally I removed the clk_hw_register_clkdev() call and it worked also.
So I'm not sure about this function.
Any idea ?
> --
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
> a Linux Foundation Collaborative Project
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next prev parent reply other threads:[~2017-04-19 19:47 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-08 20:30 [PATCH V2] clk: hi6220: Add the hi655x's pmic clock Daniel Lezcano
2017-04-11 14:06 ` Lee Jones
2017-04-11 21:19 ` Daniel Lezcano
2017-04-12 8:00 ` Lee Jones
2017-04-12 12:10 ` Daniel Lezcano
2017-04-12 13:34 ` Lee Jones
2017-04-12 15:02 ` Stephen Boyd
2017-04-16 20:57 ` Daniel Lezcano
2017-04-19 16:00 ` Stephen Boyd
2017-04-19 19:47 ` Daniel Lezcano [this message]
2017-04-22 2:14 ` Stephen Boyd
2017-04-24 9:31 ` Lee Jones
2017-04-24 9:43 ` Daniel Lezcano
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