From: Robert Marko <robert.marko@sartura.hr>
To: Michael Walle <michael@walle.cc>
Cc: Lee Jones <lee.jones@linaro.org>,
robh+dt@kernel.org, Linus Walleij <linus.walleij@linaro.org>,
bgolaszewski@baylibre.com, jdelvare@suse.com,
Guenter Roeck <linux@roeck-us.net>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-gpio@vger.kernel.org, linux-hwmon@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 3/6] gpio: Add Delta TN48M CPLD GPIO driver
Date: Fri, 21 May 2021 15:21:06 +0200 [thread overview]
Message-ID: <CA+HBbNHikM_8sCrc9FM-z7nUXVLwjpZ=Lg7fKWGbgWGBrfciOg@mail.gmail.com> (raw)
In-Reply-To: <10b67a4dce693f013eccfd6f46ecb4c4@walle.cc>
On Thu, May 6, 2021 at 6:38 PM Michael Walle <michael@walle.cc> wrote:
>
> Am 2021-04-30 14:35, schrieb Robert Marko:
> > Delta TN48M CPLD is used as a GPIO expander for the SFP GPIOs.
> >
> > It is a mix of input only and output only pins.
> >
> > Since there is no logical GPIO numbering arbitrary one is used
> > along dt-bindings to make it humanly readable.
>
> Can gpio/gpio-regmap.c be used here? See gpio/gpio-sl28cpld.c
> for an example.
I suppose it can be used, I need to look into it more to see how could
translation to register and mask be done with it.
I have adapted the driver to work with simple I2C MFD so far.
It still leaves me with a finding the logical way to number the GPIO-s.
Robert
>
> -michael
--
Robert Marko
Staff Embedded Linux Engineer
Sartura Ltd.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: robert.marko@sartura.hr
Web: www.sartura.hr
next prev parent reply other threads:[~2021-05-21 13:21 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-30 12:35 [PATCH 1/6] mfd: Add Delta TN48M CPLD driver Robert Marko
2021-04-30 12:35 ` [PATCH 2/6] dt-bindings: gpio: Add Delta TN48M CPLD GPIO bindings Robert Marko
2021-05-06 13:57 ` Rob Herring
2021-04-30 12:35 ` [PATCH 3/6] gpio: Add Delta TN48M CPLD GPIO driver Robert Marko
2021-05-06 14:00 ` Rob Herring
2021-05-06 16:40 ` Michael Walle
2021-05-06 17:21 ` Luka Perkov
2021-05-21 13:22 ` Robert Marko
2021-05-06 16:38 ` Michael Walle
2021-05-21 13:21 ` Robert Marko [this message]
2021-04-30 12:35 ` [PATCH 4/6] hwmon: Add Delta TN48M CPLD HWMON driver Robert Marko
2021-04-30 13:12 ` Guenter Roeck
2021-05-19 12:01 ` Robert Marko
2021-05-19 13:40 ` Guenter Roeck
2021-04-30 12:35 ` [PATCH 5/6] dt-bindings: mfd: Add Delta TN48M CPLD drivers bindings Robert Marko
2021-05-06 14:01 ` Rob Herring
2021-04-30 12:35 ` [PATCH 6/6] MAINTAINERS: Add Delta Networks TN48M CPLD drivers Robert Marko
2021-05-06 16:34 ` [PATCH 1/6] mfd: Add Delta TN48M CPLD driver Michael Walle
2021-05-19 11:53 ` Robert Marko
2021-05-19 19:42 ` Michael Walle
2021-05-20 6:49 ` Lee Jones
2021-05-21 8:19 ` Robert Marko
2021-05-21 9:03 ` Lee Jones
2021-05-21 9:06 ` Robert Marko
2021-05-06 16:50 ` kernel test robot
2021-05-19 11:11 ` Lee Jones
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