From: karl.beldan@gmail.com (Karl Beldan)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/6] ARM: dts: da850-lcdk: add support for 1024x768 resolution
Date: Fri, 30 Sep 2016 12:49:42 +0000 [thread overview]
Message-ID: <20160930124942.ul737vxmdmkxqdre@gobelin> (raw)
In-Reply-To: <CAMpxmJVA+p1st7HzwoOJftArqpY-wUQb8WKbQFAEWnBOysxF6w@mail.gmail.com>
On Fri, Sep 30, 2016 at 11:37:57AM +0200, Bartosz Golaszewski wrote:
> 2016-09-29 20:58 GMT+02:00 Karl Beldan <karl.beldan@gmail.com>:
> > Hi,
> >
> > On Thu, Sep 29, 2016 at 06:31:53PM +0200, Bartosz Golaszewski wrote:
> >> Add svga timings for 1024x768 resolution to the da850-lcdk
> >> device tree.
> >>
> >
>
> [snip]
>
> >
> > Why do you also call 1024x768 svga ?
> >
>
> Thanks, should have been xga. will fix in v2.
>
> > I don't think the LCDK can cope with this resolution at this frequency
> > (in terms of mem bandwidth), at least that's what I observed back in
> > August. If confirmed I think it is worth mentioning in the log at least,
> > but then I doubt adding this config would be useful.
> >
>
> Thanks for the heads up. How would that manifest itself? This seems to
> work fine for me - I'm not getting any warnings on a simple system -
> maybe if I added some additional memory load it would complain.
>
A mere dmesg > /dev/tty0 (or repeatedly cat-ting a file to /dev/tty0)
should suffice to make the issue visible and trigger FIFO underflows.
Regards,
Karl
next prev parent reply other threads:[~2016-09-30 12:49 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-29 16:31 [PATCH 0/6] ARM: davinci: da850-lcdk: add support for tilcdc Bartosz Golaszewski
2016-09-29 16:31 ` [PATCH 1/6] ARM: davinci: da8xx-dt: add OF_DEV_AUXDATA entry for lcdc Bartosz Golaszewski
2016-09-29 16:31 ` [PATCH 2/6] ARM: dts: da850: add a node for the LCD controller Bartosz Golaszewski
2016-09-30 9:34 ` Sekhar Nori
2016-09-30 13:03 ` Bartosz Golaszewski
2016-09-29 16:31 ` [PATCH 3/6] ARM: dts: da850-lcdk: enable " Bartosz Golaszewski
2016-09-29 18:40 ` Karl Beldan
2016-09-30 9:42 ` Bartosz Golaszewski
2016-09-30 13:15 ` Karl Beldan
2016-09-30 14:21 ` Sekhar Nori
2016-09-29 16:31 ` [PATCH 4/6] ARM: dts: da850-lcdk: add support for 1024x768 resolution Bartosz Golaszewski
2016-09-29 18:58 ` Karl Beldan
2016-09-30 9:37 ` Bartosz Golaszewski
2016-09-30 11:47 ` Sekhar Nori
2016-09-30 12:49 ` Karl Beldan [this message]
2016-09-30 13:48 ` Bartosz Golaszewski
2016-10-01 9:35 ` Sekhar Nori
2016-09-29 16:31 ` [PATCH 5/6] ARM: davinci: enable the LCDC DRM driver in defconfig Bartosz Golaszewski
2016-10-01 12:39 ` Sekhar Nori
2016-09-29 16:31 ` [PATCH 6/6] ARM: da850: adjust memory settings for tilcdc Bartosz Golaszewski
2016-09-29 19:07 ` Karl Beldan
2016-09-30 9:31 ` Bartosz Golaszewski
2016-09-30 9:39 ` Karl Beldan
2016-09-30 12:59 ` Peter Ujfalusi
2016-09-30 15:06 ` Bartosz Golaszewski
2016-09-30 19:19 ` Peter Ujfalusi
2016-10-01 9:24 ` Sekhar Nori
2016-10-03 7:13 ` Peter Ujfalusi
2016-10-04 13:02 ` Kevin Hilman
2016-10-05 8:22 ` Peter Ujfalusi
2016-10-06 17:57 ` Sekhar Nori
2016-10-04 9:20 ` Bartosz Golaszewski
2016-10-05 8:02 ` Peter Ujfalusi
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