From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com>,
openbmc@lists.ozlabs.org, robh+dt@kernel.org,
mark.rutland@arm.com, linux@armlinux.org.uk,
gregkh@linuxfoundation.org, joel@jms.id.au,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
linus.walleij@linaro.org
Subject: Re: [PATCH linux v1 4/4] arm: dts: Add dt-binding to support seven segment display on zaius
Date: Wed, 14 Dec 2016 10:00:46 +0100 [thread overview]
Message-ID: <10697525.O7CkPN6Gfl@wuerfel> (raw)
In-Reply-To: <3917905.e4iOqADnVQ@wuerfel>
On Wednesday, December 14, 2016 9:55:47 AM CET Arnd Bergmann wrote:
> According to your introductory mail, the interface is assumed to be
> a 74HC164. Should we use that ID in the compatible string?
>
> We can always add other strings later if we want to support multiple
> wire formats.
Actually, looking up 74hc164, that seems to be a gpio expander,
so maybe a more flexible way to do the same is to put a driver
for the expander into drivers/gpio/ and have the main driver
access the outputs of that using the gpiolib interface.
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH linux v1 4/4] arm: dts: Add dt-binding to support seven segment display on zaius
Date: Wed, 14 Dec 2016 10:00:46 +0100 [thread overview]
Message-ID: <10697525.O7CkPN6Gfl@wuerfel> (raw)
In-Reply-To: <3917905.e4iOqADnVQ@wuerfel>
On Wednesday, December 14, 2016 9:55:47 AM CET Arnd Bergmann wrote:
> According to your introductory mail, the interface is assumed to be
> a 74HC164. Should we use that ID in the compatible string?
>
> We can always add other strings later if we want to support multiple
> wire formats.
Actually, looking up 74hc164, that seems to be a gpio expander,
so maybe a more flexible way to do the same is to put a driver
for the expander into drivers/gpio/ and have the main driver
access the outputs of that using the gpiolib interface.
Arnd
next prev parent reply other threads:[~2016-12-14 9:00 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-14 7:55 [PATCH linux v1 0/4] Seven segment display support Jaghathiswari Rankappagounder Natarajan
2016-12-14 7:55 ` Jaghathiswari Rankappagounder Natarajan
2016-12-14 7:55 ` [PATCH linux v1 1/4] Documentation: dt-bindings: Document bindings for seven " Jaghathiswari Rankappagounder Natarajan
2016-12-14 7:55 ` Jaghathiswari Rankappagounder Natarajan
2016-12-14 7:55 ` Jaghathiswari Rankappagounder Natarajan
2016-12-14 7:55 ` [PATCH linux v1 2/4] drivers: misc: Character device driver for seven segment display Jaghathiswari Rankappagounder Natarajan
2016-12-14 7:55 ` Jaghathiswari Rankappagounder Natarajan
2016-12-14 7:55 ` Jaghathiswari Rankappagounder Natarajan
2016-12-14 12:32 ` Russell King - ARM Linux
2016-12-14 12:32 ` Russell King - ARM Linux
2016-12-14 12:32 ` Russell King - ARM Linux
2016-12-14 7:55 ` [PATCH linux v1 3/4] drivers: misc: Platform driver for seven segment display support Jaghathiswari Rankappagounder Natarajan
2016-12-14 7:55 ` Jaghathiswari Rankappagounder Natarajan
2016-12-14 7:55 ` [PATCH linux v1 4/4] arm: dts: Add dt-binding to support seven segment display on zaius Jaghathiswari Rankappagounder Natarajan
2016-12-14 7:55 ` Jaghathiswari Rankappagounder Natarajan
2016-12-14 8:55 ` Arnd Bergmann
2016-12-14 8:55 ` Arnd Bergmann
2016-12-14 8:55 ` Arnd Bergmann
2016-12-14 9:00 ` Arnd Bergmann [this message]
2016-12-14 9:00 ` Arnd Bergmann
2016-12-14 11:06 ` Russell King - ARM Linux
2016-12-14 11:06 ` Russell King - ARM Linux
2016-12-14 11:06 ` Russell King - ARM Linux
2016-12-14 11:40 ` Russell King - ARM Linux
2016-12-14 11:40 ` Russell King - ARM Linux
2016-12-15 23:07 ` Linus Walleij
2016-12-15 23:07 ` Linus Walleij
2016-12-14 9:02 ` Joel Stanley
2016-12-14 9:02 ` Joel Stanley
2016-12-14 9:02 ` Joel Stanley
2016-12-14 12:45 ` [PATCH linux v1 0/4] Seven segment display support Thomas Petazzoni
2016-12-14 12:45 ` Thomas Petazzoni
2016-12-14 12:45 ` Thomas Petazzoni
2016-12-14 12:56 ` Greg KH
2016-12-14 12:56 ` Greg KH
2016-12-14 12:56 ` Greg KH
2016-12-14 13:12 ` Neil Armstrong
2016-12-14 13:12 ` Neil Armstrong
2016-12-14 14:15 ` Arnd Bergmann
2016-12-14 14:15 ` Arnd Bergmann
2016-12-14 14:15 ` Arnd Bergmann
2016-12-14 20:05 ` David Daney
2016-12-14 20:05 ` David Daney
2016-12-20 4:06 ` Jaghathiswari Rankappagounder Natarajan
2016-12-14 16:50 ` Greg KH
2016-12-14 16:50 ` Greg KH
2016-12-14 14:35 ` Patrick Williams
2016-12-14 23:23 ` Rob Lippert
-- strict thread matches above, loose matches on Subject: below --
2017-02-07 4:03 Jaghathiswari Rankappagounder Natarajan
2017-02-07 4:03 ` [PATCH linux v1 4/4] arm: dts: Add dt-binding to support seven segment display on zaius Jaghathiswari Rankappagounder Natarajan
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