From: Tony Lindgren <tony@atomide.com>
To: Tero Kristo <t-kristo@ti.com>
Cc: Stephen Boyd <sboyd@kernel.org>,
Andreas Kemnade <andreas@kemnade.info>,
bcousson@baylibre.com, letux-kernel@openphoenux.org,
linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-omap@vger.kernel.org, mturquette@baylibre.com,
paul@pwsan.com
Subject: Re: [PATCH v2 2/3] clk: ti: check clock type before doing autoidle ops
Date: Fri, 30 Nov 2018 07:37:29 -0800 [thread overview]
Message-ID: <20181130153729.GG53235@atomide.com> (raw)
In-Reply-To: <eca27a46-2ca3-1a02-c0c8-c1c00b3b2f46@ti.com>
Hi,
* Tero Kristo <t-kristo@ti.com> [181130 09:21]:
> On 30/11/2018 09:57, Stephen Boyd wrote:
> > No that is not preferred. Can the omap2_clk_deny_idle() function be
> > integrated closer into the clk framework in some way that allows it to
> > be part of the clk_ops structure? And then have that take a clk_hw
> > structure instead of a struct clk? I haven't looked at this in any
> > detail whatsoever so I may be way off right now.
>
> It could be added under the main clk_ops struct, however this would
> introduce two new func pointers to it which are not used by anything else
> but OMAP. Are you aware of any other platforms requiring similar feature?
From consumer usage point of view, I'm still wondering about
the relationship of clk_deny_idle() and clkdm_deny_idle().
It seems that we need to allow reset control drivers call
clk_deny_idle() for the duration of reset. And it seems the
clk_deny_idle() should propagate to also up to the related
clock domain driver to do clkdm_deny_idle().
So maybe clk_deny_idle() is could just be something like:
dev = clk_get_device(clk);
...
error = pm_runtime_get(dev);
...
pm_runtime_put(dev);
...
And that way it would just propagate to the parent clock
domain driver and the clock framework does not need to know
about clockdomains. A clockdomain could be just a genpd
domain.
Or do you guys have better ideas?
Regards,
Tony
next prev parent reply other threads:[~2018-11-30 15:37 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-10 20:31 [PATCH v2 0/3] mach-omap2: handle autoidle denial Andreas Kemnade
2018-11-10 20:31 ` [PATCH v2 1/3] clk: ti: add a usecount for autoidle Andreas Kemnade
2018-11-10 20:31 ` [PATCH v2 2/3] clk: ti: check clock type before doing autoidle ops Andreas Kemnade
2018-11-30 0:25 ` Stephen Boyd
2018-11-30 6:15 ` Andreas Kemnade
2018-11-30 7:20 ` Stephen Boyd
2018-11-30 7:35 ` Tero Kristo
2018-11-30 7:57 ` Stephen Boyd
2018-11-30 9:20 ` Tero Kristo
2018-11-30 12:17 ` Andreas Kemnade
2018-11-30 15:37 ` Tony Lindgren [this message]
2018-11-30 23:51 ` Stephen Boyd
2018-12-03 15:39 ` Tony Lindgren
2018-12-03 16:22 ` Andreas Kemnade
2018-12-04 16:45 ` Tony Lindgren
2018-12-27 20:12 ` Andreas Kemnade
2018-12-28 20:02 ` Tony Lindgren
2018-12-31 7:23 ` Tero Kristo
2018-12-31 8:30 ` Andreas Kemnade
2019-01-03 23:39 ` Stephen Boyd
2019-01-04 7:28 ` Tero Kristo
2019-01-11 22:49 ` Stephen Boyd
2019-01-14 8:25 ` Tero Kristo
2018-12-03 17:06 ` Stephen Boyd
2018-11-10 20:31 ` [PATCH v2 3/3] arm: omap_hwmod disable ick autoidling when a hwmod requires that Andreas Kemnade
2018-11-30 0:26 ` [PATCH v2 0/3] mach-omap2: handle autoidle denial Stephen Boyd
2018-11-30 7:37 ` Tero Kristo
2018-11-30 7:57 ` Stephen Boyd
2018-11-30 9:21 ` Tero Kristo
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