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From: Linus Walleij <linus.walleij@linaro.org>
To: svendev@arcx.com
Cc: "Lee Jones" <lee.jones@linaro.org>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Mark Rutland" <mark.rutland@arm.com>,
	"Andreas Färber" <afaerber@suse.de>,
	"Thierry Reding" <treding@nvidia.com>,
	"David Lechner" <david@lechnology.com>,
	"Noralf Trønnes" <noralf@tronnes.org>,
	"Johan Hovold" <johan@kernel.org>,
	"Michal Simek" <monstr@monstr.eu>,
	michal.vokac@ysoft.com, "Arnd Bergmann" <arnd@arndb.de>,
	"Greg KH" <gregkh@linuxfoundation.org>,
	john.garry@huawei.com,
	"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
	"Geert Uytterhoeven" <geert+renesas@glider.be>,
	"Robin Murphy" <robin.murphy@arm.com>,
	"Paul Gortmaker" <paul.gortmaker@windriver.com>,
	"Sebastien Bourdelin" <sebastien.bourdelin@savoirfairelinux.com>,
	"Icenowy Zheng" <icenowy@aosc.io>,
	yuanzhichang@hisilicon.com, "Stuart Yoder" <stuyoder@gmail.com>,
	"Maxime Ripard" <maxime.ripard@bootlin.com>,
	bogdan.purcareata@nxp.com,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>
Subject: Re: [PATCH anybus v1 2/4] dt-bindings: anybus-bridge: document devicetree binding.
Date: Thu, 25 Oct 2018 12:16:32 +0200	[thread overview]
Message-ID: <CACRpkdbXPWH4FS5205ML0UmuATuZf087Y6ueVUdp_Lfc5Nu8Hw@mail.gmail.com> (raw)
In-Reply-To: <20181024142456.10084-3-svendev@arcx.com>

Hi Sven,

thanks for your patch!

On Wed, Oct 24, 2018 at 4:25 PM Sven Van Asbroeck <svendev@arcx.com> wrote:

> +  - pwms : the pwm connected to the bridge's 'pwm input'.

That is really unintuitive and needs a detailed explanation. What
is a bridge doing with a PWM? Is it 100% certain this is a PWM,
it's not just a .... clock? A pwm is a pule WIDTH modulator and
I can't for my life understand why a bus bridge needs a signal
with variable pulse width, but surprise me! :D

> +               fsl,weim-cs-timing = <0x024400b1 0x00001010 0x20081100
> +                               0x00000000 0xa0000240 0x00000000>;

Is it just a copy/paste from
Documentation/devicetree/bindings/bus/imx-weim.txt
leftover?

It was mentioned as undocumented but it is also pretty terse
with these opaque hex numbers. I would never let the
Freescale binding pass if I was reviewing it.

Look at my bindings for Qualcomm EBI in
Documentation/devicetree/bindings/bus/qcom,ebi2.txt
for example.

But maybe it's not even supposed to be there.

Yours,
Linus Walleij

  parent reply	other threads:[~2018-10-25 10:16 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-24 14:24 [PATCH anybus v1 0/4] Support HMS Profinet Card over Anybus Sven Van Asbroeck
2018-10-24 14:24 ` [PATCH anybus v1 1/4] mfd: support the Arcx anybus bridge Sven Van Asbroeck
2018-10-24 15:58   ` Randy Dunlap
2018-10-26  8:34   ` Lee Jones
2018-10-26 13:40     ` Sven Van Asbroeck
2018-10-24 14:24 ` [PATCH anybus v1 2/4] dt-bindings: anybus-bridge: document devicetree binding Sven Van Asbroeck
2018-10-25  0:06   ` Rob Herring
2018-10-25  5:19   ` Lee Jones
2018-10-25 10:16   ` Linus Walleij [this message]
2018-10-24 14:24 ` [PATCH anybus v1 3/4] bus: support HMS Anybus-S bus Sven Van Asbroeck
2018-10-24 15:58   ` Randy Dunlap
2018-10-25 11:08   ` Linus Walleij
2018-10-24 14:24 ` [PATCH anybus v1 4/4] misc: support HMS Profinet IRT industrial controller Sven Van Asbroeck
2018-10-24 15:58   ` Randy Dunlap
2018-10-25  9:18 ` [PATCH anybus v1 0/4] Support HMS Profinet Card over Anybus Andy Shevchenko
2018-11-05 14:49   ` Sven Van Asbroeck
2018-10-25 13:35 [PATCH anybus v1 2/4] dt-bindings: anybus-bridge: document devicetree binding thesven73
2018-10-25 13:55 thesven73
2018-10-25 15:30 ` David Lechner
2018-10-26 11:28 ` Linus Walleij
2018-10-25 15:46 thesven73
2018-10-26  6:39 ` Lee Jones

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