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From: Andrew Lunn <andrew@lunn.ch>
To: Robert Marko <robert.marko@sartura.hr>
Cc: Rob Herring <robh@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Lee Jones <lee.jones@linaro.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
	devicetree <devicetree@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Luka Perkov <luka.perkov@sartura.hr>,
	jmp@epiphyte.org, Paul Menzel <pmenzel@molgen.mpg.de>,
	Donald Buczek <buczek@molgen.mpg.de>
Subject: Re: [PATCH v6 5/6] dt-bindings: mfd: Add Delta TN48M CPLD drivers bindings
Date: Tue, 19 Oct 2021 04:05:34 +0200	[thread overview]
Message-ID: <YW4n7hUIEB320dFv@lunn.ch> (raw)
In-Reply-To: <CA+HBbNFj5+6sLKxmL8XtsZQ48ch8OjTbJ1bwkDC8dfRiOyWY1Q@mail.gmail.com>

> > > > +  GPIO controller module provides GPIO-s for the SFP slots.
> > > > +  It is split into 3 controllers, one output only for the SFP TX disable
> > > > +  pins, one input only for the SFP present pins and one input only for
> > > > +  the SFP LOS pins.

Late to the conversation, so i might be asking questions already
asked...

So the PLD has restrictions? You have a collection of GPOs and a
collection of GPIs? You don't have an GPIOs?

> > > > +
> > > > +properties:
> > > > +  compatible:
> > > > +    enum:
> > > > +      - delta,tn48m-gpio-sfp-tx-disable
> > > > +      - delta,tn48m-gpio-sfp-present
> > > > +      - delta,tn48m-gpio-sfp-los

Do these names have any real significant? Are you really forced to
connect the SFP cage in this dedicated manor? Is there any reason why
i cannot use a GPO to control an LED? A GPI for a button?

	Andrew

  parent reply	other threads:[~2021-10-19  2:05 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-07 12:33 [PATCH v6 1/6] mfd: simple-mfd-i2c: Add Delta TN48M CPLD support Robert Marko
2021-06-07 12:33 ` [PATCH v6 2/6] gpio: Add Delta TN48M CPLD GPIO driver Robert Marko
2021-06-07 12:33 ` [PATCH v6 3/6] dt-bindings: reset: Add Delta TN48M Robert Marko
2021-06-07 12:33 ` [PATCH v6 4/6] reset: Add Delta TN48M CPLD reset controller Robert Marko
2021-06-07 12:33 ` [PATCH v6 5/6] dt-bindings: mfd: Add Delta TN48M CPLD drivers bindings Robert Marko
2021-06-25 11:46   ` Robert Marko
2021-07-13 22:25     ` Rob Herring
2021-07-18  9:15       ` Robert Marko
2021-07-19 10:46         ` Lee Jones
2021-07-19 22:59         ` Rob Herring
2021-07-21 14:16           ` Linus Walleij
2021-08-03 19:22             ` Robert Marko
2021-08-11 12:17               ` Linus Walleij
2021-08-24  8:03                 ` Robert Marko
2021-09-07 21:02                   ` Robert Marko
2021-09-25 14:47                     ` Robert Marko
2021-10-03 22:48                   ` Linus Walleij
2021-10-12 16:31                     ` Robert Marko
2021-10-19  1:40                       ` Andrew Lunn
2021-10-19 10:49                         ` Robert Marko
2021-10-19  2:05         ` Andrew Lunn [this message]
2021-10-19 10:54           ` Robert Marko
2021-06-07 12:33 ` [PATCH v6 6/6] MAINTAINERS: Add Delta Networks TN48M CPLD drivers Robert Marko

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