From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Pawel Moll <pawel.moll@arm.com>
Cc: Arun Ramamurthy <arun.ramamurthy@broadcom.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <Mark.Rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>,
Tomi Valkeinen <tomi.valkeinen@ti.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-fbdev@vger.kernel.org" <linux-fbdev@vger.kernel.org>,
Dmitry Torokhov <dtor@google.com>,
Anatol Pomazau <anatol@google.com>,
Jonathan Richardson <jonathar@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
Ray Jui <rjui@broadcom.com>,
"bcm-kernel-feedback-list@broadcom.com"
<bcm-kernel-feedback-list@broadcom.com>
Subject: Re: [PATCH] video: ARM CLCD: Added support for FBIOPAN_DISPLAY and virtual y resolution
Date: Mon, 02 Mar 2015 16:11:22 +0000 [thread overview]
Message-ID: <20150302161122.GP8656@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1425312509.3092.7.camel@arm.com>
On Mon, Mar 02, 2015 at 04:08:29PM +0000, Pawel Moll wrote:
> I'm not sure about this... The word "virtual" never works well with
> device tree nodes defined as "hardware description".
>
> I understand what you're doing, but adding this property to the display
> controller's node doesn't sound right. How does this describe hardware?
> If anywhere, it's more like a job for the panel node?
A better description (and implementation) would be to describe the size
of the RAM available for video purposes. The driver can then use the
requested virtual X resolution to limit (and/or compute) the virtual Y
resolution to allow Y panning/wrapping of the display.
This would match some hardware where the video RAM is indeed a separate
physical set of RAM (such as the IM-PD/1).
--
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
next prev parent reply other threads:[~2015-03-02 16:11 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-25 21:01 [PATCH] video: ARM CLCD: Added dt support to set tim2 register Arun Ramamurthy
2015-02-25 21:01 ` [PATCH] video: ARM CLCD: Added support for FBIO_WAITFORVSYNC Arun Ramamurthy
[not found] ` <1424898082-1522-3-git-send-email-arun.ramamurthy-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-03-02 16:00 ` Pawel Moll
2015-03-02 19:09 ` Arun Ramamurthy
2015-03-03 10:01 ` Pawel Moll
2015-03-04 0:35 ` Arun Ramamurthy
[not found] ` <1425312029.3092.1.camel-5wv7dgnIgG8@public.gmane.org>
2015-03-02 23:27 ` Rob Herring
2015-03-04 0:31 ` Arun Ramamurthy
2015-03-02 23:29 ` Rob Herring
[not found] ` <CAL_JsqJfA3Pxvdux-Um9nFoaZpRh30S9d1TQid_TchDH_qo7Ow-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-03-04 0:33 ` Arun Ramamurthy
2015-02-25 21:01 ` [PATCH] video: ARM CLCD: Correcting timing checks for STN and TFT dispalys Arun Ramamurthy
[not found] ` <1424898082-1522-1-git-send-email-arun.ramamurthy-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-02-25 21:01 ` [PATCH] video: ARM CLCD: Added support for FBIOPAN_DISPLAY and virtual y resolution Arun Ramamurthy
2015-03-02 16:08 ` Pawel Moll
2015-03-02 16:11 ` Russell King - ARM Linux [this message]
2015-03-02 19:09 ` Arun Ramamurthy
2015-03-02 19:12 ` Russell King - ARM Linux
[not found] ` <54F4B57F.3030306-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-03-02 23:22 ` Rob Herring
[not found] ` <CAL_JsqKMP4JxQ-Q5V1skcaKPdhC4v-joOrNyn++tMfat8arMKA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-03-04 0:31 ` Arun Ramamurthy
2015-03-02 16:11 ` [PATCH] video: ARM CLCD: Added dt support to set tim2 register Pawel Moll
2015-03-02 19:09 ` Arun Ramamurthy
2015-03-03 10:02 ` Pawel Moll
[not found] ` <1425376977.3092.26.camel-5wv7dgnIgG8@public.gmane.org>
2015-03-03 10:22 ` Pawel Moll
[not found] ` <1425378127.3092.38.camel-5wv7dgnIgG8@public.gmane.org>
2015-03-04 0:37 ` Arun Ramamurthy
2015-03-05 10:59 ` Pawel Moll
2015-03-09 16:16 ` Russell King - ARM Linux
2016-02-10 13:58 ` Linus Walleij
2016-02-10 17:48 ` Ray Jui
[not found] ` <a005c107-0b15-65ec-eede-a713ee1a8bd9-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2016-02-15 13:25 ` Linus Walleij
[not found] ` <CAE_wzQ-s4-T8wDJjwtLkr73_1j8JpRVxBaBJRfskMeACdUxPig@mail.gmail.com>
2016-02-17 17:42 ` Ray Jui
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