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From: Chen-Yu Tsai <wens@csie.org>
To: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: "Mark Rutland" <mark.rutland@arm.com>,
	devicetree <devicetree@vger.kernel.org>,
	linux-watchdog@vger.kernel.org,
	linux-kernel <linux-kernel@vger.kernel.org>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Clément Péron" <peron.clem@gmail.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	"Wim Van Sebroeck" <wim@linux-watchdog.org>,
	"Guenter Roeck" <linux@roeck-us.net>
Subject: Re: [PATCH v3 2/4] arm64: dts: allwinner: h6: add watchdog node
Date: Mon, 20 May 2019 22:57:04 +0800	[thread overview]
Message-ID: <CAGb2v65P1tne+-FuJ-tLTRMaPdBPYd9eJS+rS5TXaAULNCLBZg@mail.gmail.com> (raw)
In-Reply-To: <20190520144404.zprbuqt3d7uuxgr2@flea>

On Mon, May 20, 2019 at 10:44 PM Maxime Ripard
<maxime.ripard@bootlin.com> wrote:
>
> On Mon, May 20, 2019 at 10:21:40AM +0200, Clément Péron wrote:
> > Hi,
> >
> > On Mon, 20 May 2019 at 09:36, Maxime Ripard <maxime.ripard@bootlin.com> wrote:
> > >
> > > On Sat, May 18, 2019 at 05:23:53PM +0200, Clément Péron wrote:
> > > > Allwinner H6 has a watchog node which seems broken
> > > > on some boards.
> > > >
> > > > Test has been performed on several boards.
> > > >
> > > > Chen-Yu Tsai boards:
> > > > Pine H64 - H6448BA 7782 => OK
> > > > OrangePi Lite 2 - H8068BA 61C2 => KO
> > > >
> > > > Martin Ayotte boards:
> > > > Pine H64 - H8069BA 6892 => OK
> > > > OrangePi 3 - HA047BA 69W2 => KO
> > > > OrangePi One Plus - H7310BA 6842 => KO
> > > > OrangePi Lite2 - H6448BA 6662 => KO
> > > >
> > > > Clément Péron board:
> > > > Beelink GS1 - H7309BA 6842 => KO
> > > >
> > > > As it seems not fixable for now, declare the node
> > > > but leave it disable with a comment.
> > > >
> > > > Signed-off-by: Clément Péron <peron.clem@gmail.com>
> > >
> > > If it doesn't work most boards, then why do we need to merge that
> > > patch in the first place?
> >
> > My personnal opinion, is that having the IP declared and disabled with
> > a comment saying "it's broken on some boards" in the device-tree is
> > better than not having at all.
> >
> > This will explicit say "the IP exist but don't use it!".
> > Maybe some people with a functionnal board would like to explicitly
> > use it on their dts.
>
> Yeah, that makes sense. Chen-Yu, any opinion on the matter?

Works for me.

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  reply	other threads:[~2019-05-20 14:57 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-18 15:23 [PATCH v3 0/4] Allwinner H6 watchdog support Clément Péron
2019-05-18 15:23 ` [PATCH v3 1/4] dt-bindings: watchdog: add Allwinner H6 watchdog Clément Péron
2019-05-20  7:35   ` Maxime Ripard
2019-05-20  8:14     ` Clément Péron
2019-05-20 14:42       ` Maxime Ripard
2019-05-20 15:16         ` Clément Péron
2019-05-18 15:23 ` [PATCH v3 2/4] arm64: dts: allwinner: h6: add watchdog node Clément Péron
2019-05-20  7:36   ` Maxime Ripard
2019-05-20  8:21     ` Clément Péron
2019-05-20 14:44       ` Maxime Ripard
2019-05-20 14:57         ` Chen-Yu Tsai [this message]
2019-05-18 15:23 ` [PATCH v3 3/4] arm64: dts: allwinner: h6: add r_watchog node Clément Péron
2019-05-20 15:19   ` Clément Péron
2019-05-18 15:23 ` [PATCH v3 4/4] arm64: defconfig: enable sunxi watchdog Clément Péron

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