Linux-Watchdog Archive on lore.kernel.org
 help / color / Atom feed
From: Lee Jones <lee.jones@linaro.org>
To: Michael Walle <michael@walle.cc>
Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org,
	linux-pwm@vger.kernel.org, linux-watchdog@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	"Linus Walleij" <linus.walleij@linaro.org>,
	"Bartosz Golaszewski" <bgolaszewski@baylibre.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Jean Delvare" <jdelvare@suse.com>,
	"Guenter Roeck" <linux@roeck-us.net>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Wim Van Sebroeck" <wim@linux-watchdog.org>,
	"Shawn Guo" <shawnguo@kernel.org>, "Li Yang" <leoyang.li@nxp.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Jason Cooper" <jason@lakedaemon.net>,
	"Marc Zyngier" <maz@kernel.org>,
	"Mark Brown" <broonie@kernel.org>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
	"Catalin Marinas" <catalin.marinas@arm.com>,
	"Will Deacon" <will@kernel.org>, "Pavel Machek" <pavel@ucw.cz>,
	"Rob Herring" <robh@kernel.org>
Subject: Re: [PATCH v6 02/13] dt-bindings: mfd: Add bindings for sl28cpld
Date: Tue, 28 Jul 2020 09:27:07 +0100
Message-ID: <20200728082707.GB2419169@dell> (raw)
In-Reply-To: <1065b0107ce6fd88b2bdd704bf45346b@walle.cc>

On Tue, 28 Jul 2020, Michael Walle wrote:

> Am 2020-07-28 09:24, schrieb Lee Jones:
> > On Sun, 26 Jul 2020, Michael Walle wrote:
> > 
> > > Add a device tree bindings for the board management controller found
> > > on
> > > the Kontron SMARC-sAL28 board.
> > > 
> > > Signed-off-by: Michael Walle <michael@walle.cc>
> > > Reviewed-by: Rob Herring <robh@kernel.org>
> > > ---
> > > Changes since v5:
> > >  - none
> > > 
> > > Changes since v4:
> > >  - fix the regex of the unit-address
> > > 
> > > Changes since v3:
> > >  - see cover letter
> > > 
> > >  .../bindings/gpio/kontron,sl28cpld-gpio.yaml  |  54 +++++++
> > >  .../hwmon/kontron,sl28cpld-hwmon.yaml         |  27 ++++
> > >  .../kontron,sl28cpld-intc.yaml                |  54 +++++++
> > >  .../bindings/mfd/kontron,sl28cpld.yaml        | 153
> > > ++++++++++++++++++
> > >  .../bindings/pwm/kontron,sl28cpld-pwm.yaml    |  35 ++++
> > >  .../watchdog/kontron,sl28cpld-wdt.yaml        |  35 ++++
> > >  6 files changed, 358 insertions(+)
> > >  create mode 100644
> > > Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml
> > >  create mode 100644
> > > Documentation/devicetree/bindings/hwmon/kontron,sl28cpld-hwmon.yaml
> > >  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/kontron,sl28cpld-intc.yaml
> > >  create mode 100644
> > > Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml
> > >  create mode 100644
> > > Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml
> > >  create mode 100644
> > > Documentation/devicetree/bindings/watchdog/kontron,sl28cpld-wdt.yaml
> > > 
> > > diff --git
> > > a/Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml
> > > b/Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml
> > > new file mode 100644
> > > index 000000000000..9a63a158a796
> > > --- /dev/null
> > > +++
> > > b/Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml
> > > @@ -0,0 +1,54 @@
> > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/gpio/kontron,sl28cpld-gpio.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: GPIO driver for the sl28cpld board management controller
> > > +
> > > +maintainers:
> > > +  - Michael Walle <michael@walle.cc>
> > > +
> > > +description: |
> > > +  This module is part of the sl28cpld multi-function device. For more
> > > +  details see
> > > Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml.
> > 
> > Paths are normally relative.
> 
> grep Documentation/ Documentation
> 
> I know there are a lot false positives (esp in the first one)..
> 
> $ grep -r "\.\./" Documentation | wc -l
> 1826
> $ grep -r "Documentation/" Documentation|wc -l
> 2862

I actually meant just for Device Tree bindings, but it does appear
that 'Documentation' is used a bunch there too.

My reasons for not liking full paths is that the intention was always
to move 'Documentation/devicetree' to a new location outside of the
kernel source tree.

[...]

> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/mfd/kontron,sl28cpld.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Kontron's sl28cpld board management controller
> > 
> > "S128CPLD" ?
> 
> still not, its sl28cpld, think of a project/code name, not the product
> appended with CPLD.
> 
> > "Board Management Controller (BMC)" ?
> 
> sounds like IPMI, which I wanted to avoid.

Is there a datasheet?

> > > +maintainers:
> > > +  - Michael Walle <michael@walle.cc>
> > > +
> > > +description: |
> > > +  The board management controller may contain different IP blocks
> > > like
> > > +  watchdog, fan monitoring, PWM controller, interrupt controller
> > > and a
> > > +  GPIO controller.
> > > +
> > > +properties:
> > > +  compatible:
> > > +    const: kontron,sl28cpld-r1
> > 
> > We don't usually code revision numbers in compatible strings.
> > 
> > Is there any way to pull this from the H/W?
> 
> No, unfortunately you can't. And I really want to keep that, in case
> in the future there are some backwards incompatible changes.

Rob,

I know you reviewed this already, but you can give your opinion on
this specifically please?  I know that we have pushed back on this in
the past.


-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

  reply index

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-25 23:18 [PATCH v6 00/13] Add support for Kontron sl28cpld Michael Walle
2020-07-25 23:18 ` [PATCH v6 01/13] mfd: add simple regmap based I2C driver Michael Walle
2020-07-28  7:19   ` Lee Jones
2020-07-28  7:42     ` Michael Walle
2020-07-28  8:15       ` Lee Jones
2020-07-28  8:27         ` Michael Walle
2020-07-28  8:35           ` Lee Jones
2020-07-25 23:18 ` [PATCH v6 02/13] dt-bindings: mfd: Add bindings for sl28cpld Michael Walle
2020-07-28  7:24   ` Lee Jones
2020-07-28  7:57     ` Michael Walle
2020-07-28  8:27       ` Lee Jones [this message]
2020-07-28  8:38         ` Michael Walle
2020-07-28  8:56           ` Lee Jones
2020-07-28  9:06             ` Michael Walle
2020-07-28  9:20               ` Lee Jones
2020-07-28  9:39                 ` Michael Walle
2020-07-25 23:18 ` [PATCH v6 03/13] mfd: simple-mfd-i2c: add sl28cpld support Michael Walle
2020-07-28  7:25   ` Lee Jones
2020-07-25 23:18 ` [PATCH v6 04/13] irqchip: add sl28cpld interrupt controller support Michael Walle
2020-07-25 23:18 ` [PATCH v6 05/13] watchdog: add support for sl28cpld watchdog Michael Walle
2020-07-25 23:18 ` [PATCH v6 06/13] pwm: add support for sl28cpld PWM controller Michael Walle
2020-07-27  7:30   ` Thierry Reding
2020-07-28  7:43   ` Uwe Kleine-König
2020-07-28  8:21     ` Michael Walle
2020-07-28  9:47       ` Uwe Kleine-König
2020-07-28 10:51         ` Lee Jones
2020-07-25 23:18 ` [PATCH v6 07/13] gpio: add support for the sl28cpld GPIO controller Michael Walle
2020-07-26  9:16   ` Andy Shevchenko
2020-07-25 23:18 ` [PATCH v6 08/13] hwmon: add support for the sl28cpld hardware monitoring controller Michael Walle
2020-07-26  9:18   ` Andy Shevchenko
2020-07-25 23:18 ` [PATCH v6 09/13] arm64: dts: freescale: sl28: enable sl28cpld Michael Walle
2020-07-25 23:18 ` [PATCH v6 10/13] arm64: dts: freescale: sl28: map GPIOs to input events Michael Walle
2020-07-25 23:18 ` [PATCH v6 11/13] arm64: dts: freescale: sl28: enable LED support Michael Walle
2020-07-25 23:18 ` [PATCH v6 12/13] arm64: dts: freescale: sl28: enable fan support Michael Walle
2020-07-25 23:18 ` [PATCH v6 13/13] arm64: defconfig: enable the sl28cpld board management controller Michael Walle

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200728082707.GB2419169@dell \
    --to=lee.jones@linaro.org \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=bgolaszewski@baylibre.com \
    --cc=broonie@kernel.org \
    --cc=catalin.marinas@arm.com \
    --cc=devicetree@vger.kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=jason@lakedaemon.net \
    --cc=jdelvare@suse.com \
    --cc=leoyang.li@nxp.com \
    --cc=linus.walleij@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-gpio@vger.kernel.org \
    --cc=linux-hwmon@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pwm@vger.kernel.org \
    --cc=linux-watchdog@vger.kernel.org \
    --cc=linux@roeck-us.net \
    --cc=maz@kernel.org \
    --cc=michael@walle.cc \
    --cc=pavel@ucw.cz \
    --cc=robh+dt@kernel.org \
    --cc=robh@kernel.org \
    --cc=shawnguo@kernel.org \
    --cc=tglx@linutronix.de \
    --cc=thierry.reding@gmail.com \
    --cc=u.kleine-koenig@pengutronix.de \
    --cc=will@kernel.org \
    --cc=wim@linux-watchdog.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-Watchdog Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-watchdog/0 linux-watchdog/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-watchdog linux-watchdog/ https://lore.kernel.org/linux-watchdog \
		linux-watchdog@vger.kernel.org
	public-inbox-index linux-watchdog

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-watchdog


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git