From: Dave Stevenson <linux-rpi-kernel@destevenson.freeserve.co.uk>
To: Eric Anholt <eric@anholt.net>, Gerd Hoffmann <kraxel@redhat.com>,
Stefan Wahren <stefan.wahren@i2se.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org,
Florian Fainelli <f.fainelli@gmail.com>,
Scott Branden <sbranden@broadcom.com>,
Ray Jui <rjui@broadcom.com>, Russell King <linux@armlinux.org.uk>,
open list <linux-kernel@vger.kernel.org>,
Rob Herring <robh+dt@kernel.org>,
bcm-kernel-feedback-list@broadcom.com,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/8] ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node.
Date: Sun, 11 Sep 2016 22:22:36 +0100 [thread overview]
Message-ID: <7f432ebf-78d9-9089-f79d-d0584de89887@destevenson.freeserve.co.uk> (raw)
In-Reply-To: <8737l893d2.fsf@eliezer.anholt.net>
On 09/09/16 22:20, Eric Anholt wrote:
> e<#secure method=pgpmime mode=sign>
> Gerd Hoffmann <kraxel@redhat.com> writes:
>
>> Hi,
>>
>>> According to this page [1] the pinctrl group for parallel display interface is
>>> missing. Is it intended?
>>>
>>> [1] - http://elinux.org/RPi_BCM2835_GPIOs
>> Just an oversight I guess. Eric?
>>
>> Does this look correct?
>>
>> + dpi_gpio4: dpi_gpio4 {
>> + brcm,pins = <4 5 6 7 8 9 10 11 12 13
>> + 14 15 16 17 18 19 20 21
>> + 22 23 24 25 26 27>;
>> + brcm,function = <BCM2835_FSEL_ALT2>;
>> + };
> For DPI, you also need pins 0-3 in there for clock and syncs.
>
> That set of data pins would be for a 24-bit mode, which is what we
> should be using for the Adafruit kippah + 7" panel combo.
The Kippah is only 18bit, RGB666.
https://www.adafruit.com/products/2454
"The pins used are GPIO 2 through 21 inclusive. That means you don't get
the UART RX/TX pins (no console cable) and you don't get the standard
user I2C pins, the EEPROM I2C pins, or hardware SPI pins. You do get to
use pins #22, #23, #24, #25, #26 and #27, and the USB ports are fine to
use too."
On the forum there are some that report they have used DPI in RGB888,
but they're not using the Kippah. I had mentioned this to Phil E that
there should be a dpi18 overlay, but not got around to sorting that.
>
> _______________________________________________
> linux-rpi-kernel mailing list
> linux-rpi-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rpi-kernel
>
next prev parent reply other threads:[~2016-09-11 21:54 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1473244289-20728-1-git-send-email-kraxel@redhat.com>
2016-09-07 10:31 ` [PATCH 1/8] ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node Gerd Hoffmann
2016-09-07 18:09 ` Stefan Wahren
2016-09-07 18:50 ` Eric Anholt
2016-09-08 7:48 ` Gerd Hoffmann
2016-09-08 17:55 ` Stefan Wahren
2016-09-09 9:05 ` Gerd Hoffmann
2016-09-09 14:12 ` Stefan Wahren
2016-09-09 21:20 ` Eric Anholt
2016-09-11 21:22 ` Dave Stevenson [this message]
2016-09-13 6:09 ` Eric Anholt
2016-09-07 10:31 ` [PATCH 2/8] ARM: dts: bcm283x: Add the emmc pin group to bcm283x.dtsi Gerd Hoffmann
2016-09-07 10:31 ` [PATCH 3/8] ARM: dts: bcm283x: Add a group for mapping pins 48-53 to sdhost Gerd Hoffmann
2016-09-07 10:31 ` [PATCH 4/8] ARM: dts: bcm283x: Add a new EMMC pin group from the downstream tree Gerd Hoffmann
2016-09-07 18:13 ` Stefan Wahren
2016-09-08 7:44 ` Gerd Hoffmann
2016-09-08 12:06 ` Stefan Wahren
2016-09-09 8:26 ` Gerd Hoffmann
2016-09-09 8:47 ` Gerd Hoffmann
2016-09-08 19:50 ` Scott Branden
2016-09-09 6:58 ` Stefan Wahren
2016-09-09 16:37 ` Scott Branden
2016-09-09 21:22 ` Eric Anholt
2016-09-07 10:31 ` [PATCH 5/8] ARM: dts: bcm283x: add pinctrl group to &pwm, drop pins from &gpio Gerd Hoffmann
2016-09-07 10:31 ` [PATCH 6/8] ARM: dts: bcm283x: add pinctrl group to &i2c0, " Gerd Hoffmann
2016-09-07 10:31 ` [PATCH 7/8] ARM: dts: bcm283x: add pinctrl group to &i2c1, " Gerd Hoffmann
2016-09-07 10:31 ` [PATCH 8/8] ARM: dts: bcm283x: add pinctrl group to &sdhci, " Gerd Hoffmann
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=7f432ebf-78d9-9089-f79d-d0584de89887@destevenson.freeserve.co.uk \
--to=linux-rpi-kernel@destevenson.freeserve.co.uk \
--cc=bcm-kernel-feedback-list@broadcom.com \
--cc=devicetree@vger.kernel.org \
--cc=eric@anholt.net \
--cc=f.fainelli@gmail.com \
--cc=kraxel@redhat.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rpi-kernel@lists.infradead.org \
--cc=linux@armlinux.org.uk \
--cc=mark.rutland@arm.com \
--cc=rjui@broadcom.com \
--cc=robh+dt@kernel.org \
--cc=sbranden@broadcom.com \
--cc=stefan.wahren@i2se.com \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).