linux-kernel - Re: [PATCH 2/6] clk: tegra: make tegra_clocks_apply_init_table arch

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Message-ID: <53CE9C29.5030508@wwwdotorg.org>
Date:	Tue, 22 Jul 2014 11:15:21 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Peter De Schrijver <pdeschrijver@...dia.com>
CC:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Russell King <linux@....linux.org.uk>,
	Prashant Gaikwad <pgaikwad@...dia.com>,
	Mike Turquette <mturquette@...aro.org>,
	Joseph Lo <josephl@...dia.com>,
	Alexandre Courbot <acourbot@...dia.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Tuomas Tynkkynen <ttynkkynen@...dia.com>,
	devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/6] clk: tegra: make tegra_clocks_apply_init_table arch_initcall

On 07/15/2014 09:24 AM, Peter De Schrijver wrote:
> tegra_clocks_apply_init_table needs to be called after the udelay loop has
> been calibrated (see 441f199a37cfd66c5dd8dd45490bd3ea6971117d why that is).

Instead of just the commit ID, can you please mention the commit subject
too:

441f199a37cf "clk: tegra: defer application of init table"

> On existing Tegra SoCs this was done by calling tegra_clocks_apply_init_table
> from tegra_dt_init. To make this also work on ARM64, we need to
> change this into an initcall. tegra_dt_init is called from customize_machine
> which is an arch_initcall. Therefore this should also work on existing 32bit
> Tegra SoCs.

I still strongly dislike performing this basic initialization from
random separate initcalls. I think we should create a single initcall
for all the Tegra initialization, even if it isn't able to be a machine
descriptor hook function any more.

That said, discussions re: that are ongoing in other threads, so it's no
worth reworking this patch yet.
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