From: Maxime Ripard <maxime@cerno.tech>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: "Ondřej Jirman" <megi@xff.cz>,
"Christophe JAILLET" <christophe.jaillet@wanadoo.fr>,
"Vasily Khoruzhick" <anarsoul@gmail.com>,
"Yangtao Li" <tiny.windzz@gmail.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Amit Kucheria" <amitk@kernel.org>,
"Zhang Rui" <rui.zhang@intel.com>, "Chen-Yu Tsai" <wens@csie.org>,
"Jernej Skrabec" <jernej.skrabec@gmail.com>,
"Samuel Holland" <samuel@sholland.org>,
"Philipp Zabel" <p.zabel@pengutronix.de>,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev
Subject: Re: [PATCH v2] thermal/drivers/sun8i: Fix some error handling paths in sun8i_ths_probe()
Date: Tue, 13 Jun 2023 11:16:24 +0200 [thread overview]
Message-ID: <4j74jv53tdf4n6txibl6xjh63dzzjr3ku3uoxhv3rzodthqbqy@25eho3f7wh6y> (raw)
In-Reply-To: <ad78c18e-13dd-fca3-1aff-5b8e68a91c90@linaro.org>
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On Tue, Jun 13, 2023 at 10:49:24AM +0200, Daniel Lezcano wrote:
> On 15/05/2023 14:33, Ondřej Jirman wrote:
> > Hi Maxime,
> >
> > On Mon, May 15, 2023 at 01:54:41PM +0200, Maxime Ripard wrote:
> > > Hi,
> > >
> > > On Sun, May 14, 2023 at 08:46:05PM +0200, Christophe JAILLET wrote:
> > > > Should an error occur after calling sun8i_ths_resource_init() in the probe
> > > > function, some resources need to be released, as already done in the
> > > > .remove() function.
> > > >
> > > > Switch to the devm_clk_get_enabled() helper and add a new devm_action to
> > > > turn sun8i_ths_resource_init() into a fully managed function.
> > > >
> > > > Move the place where reset_control_deassert() is called so that the
> > > > recommended order of reset release/clock enable steps is kept.
> > > > A64 manual states that:
> > > >
> > > > 3.3.6.4. Gating and reset
> > > >
> > > > Make sure that the reset signal has been released before the release of
> > > > module clock gating;
> > > >
> > > > This fixes the issue and removes some LoC at the same time.
> > >
> > > It should really be three different patches:
> > > - One to fix the resource release, that can be backported to stable
> > > releases
> > > - One to switch to devm_clk_get_enabled
> > > - and one to change the order of clock enable vs reset deassertion
> >
> > The order was correct before this patch. I don't think an incorrect order
> > should be intorduced, even if temporarily between two patches.
>
> Maxime ?
I agree with Ondřej
Maxime
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next prev parent reply other threads:[~2023-06-13 9:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-14 18:46 [PATCH v2] thermal/drivers/sun8i: Fix some error handling paths in sun8i_ths_probe() Christophe JAILLET
2023-05-15 11:54 ` Maxime Ripard
2023-05-15 12:33 ` Ondřej Jirman
2023-06-13 8:49 ` Daniel Lezcano
2023-06-13 9:16 ` Maxime Ripard [this message]
2023-06-13 9:17 ` Daniel Lezcano
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