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From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
To: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Rob Herring <robh+dt@kernel.org>,
	Jonathan Cameron <jic23@kernel.org>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Magnus Damm <magnus.damm@gmail.com>,
	Alexandru Ardelean <aardelean@deviqon.com>,
	linux-iio <linux-iio@vger.kernel.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@vger.kernel.org>,
	Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Biju Das <biju.das.jz@bp.renesas.com>
Subject: Re: [PATCH v3 2/3] iio: adc: Add driver for Renesas RZ/G2L A/D converter
Date: Tue, 27 Jul 2021 09:54:20 +0100	[thread overview]
Message-ID: <CA+V-a8uKe=F_6pEdOkAXG_JitiQ8T9D_d0MDuKXHoo2XvXK=HQ@mail.gmail.com> (raw)
In-Reply-To: <145309b88353d4127c659dfabd374252cb2afc48.camel@pengutronix.de>

Hi Philipp,

On Tue, Jul 27, 2021 at 9:13 AM Philipp Zabel <p.zabel@pengutronix.de> wrote:
>
> On Tue, 2021-07-27 at 09:02 +0100, Lad, Prabhakar wrote:
> [...]
> > > > +     ret = devm_add_action_or_reset(&pdev->dev,
> > > > +                                    rzg2l_adc_reset_assert, adc->adrstn);
> > > > +     if (ret) {
> > > > +             dev_err(&pdev->dev, "failed to register adrstn assert devm action, %d\n",
> > > > +                     ret);
> > > > +             return ret;
> > > > +     }
> > >
> > > This is the wrong way around. Installing devres actions should be done
> > > after the thing they are supposed to revert in case of error. You should
> > > move this down below the reset_control_deassert(adc->adrstn).
> > >
> > Ouch my understanding was, there won't be any harm in asserting the
> > reset line. Agree with will move this below
> > reset_control_deassert(adc->adrstn).
>
> You are probably right, but it's still better do it correctly. Just
> imagine one of the reset lines turns out to be shared later, or somebody
> else will look at this driver for inspiration.
>
Agreed, will do it the right way!

Cheers,
Prabhakar

  reply	other threads:[~2021-07-27  8:54 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-26 18:28 [PATCH v3 0/3] Renesas RZ/G2L ADC driver support Lad Prabhakar
2021-07-26 18:28 ` [PATCH v3 1/3] dt-bindings: iio: adc: Add binding documentation for Renesas RZ/G2L A/D converter Lad Prabhakar
2021-07-26 21:42   ` Rob Herring
2021-07-27  8:06     ` Lad, Prabhakar
2021-07-27 20:30   ` Rob Herring
2021-07-26 18:28 ` [PATCH v3 2/3] iio: adc: Add driver " Lad Prabhakar
2021-07-27  7:13   ` Philipp Zabel
2021-07-27  8:02     ` Lad, Prabhakar
2021-07-27  8:13       ` Philipp Zabel
2021-07-27  8:54         ` Lad, Prabhakar [this message]
2021-07-31 17:11   ` Jonathan Cameron
2021-07-31 18:31     ` Lad, Prabhakar
2021-08-01 16:59       ` Jonathan Cameron
2021-08-01 19:51         ` Lad, Prabhakar
2021-07-26 18:28 ` [PATCH v3 3/3] arm64: dts: renesas: r9a07g044: Add ADC node Lad Prabhakar

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