From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Wed, 21 Jan 2015 09:56:48 +0100 Subject: [PATCH] ARM: dts: sun4i: Add simplefb node with de_fe0-de_be0-lcd0-hdmi pipeline In-Reply-To: <1421672477-12978-2-git-send-email-hdegoede@redhat.com> References: <1421672477-12978-1-git-send-email-hdegoede@redhat.com> <1421672477-12978-2-git-send-email-hdegoede@redhat.com> Message-ID: <20150121085648.GB4367@lukather> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Jan 19, 2015 at 02:01:17PM +0100, Hans de Goede wrote: > Testing has shown that on sun4i the display backend engine does not have > deep enough fifo-s causing flickering / tearing in full-hd mode due to > fifo underruns. This can be avoided by letting the display frontend engine > do the dma from memory, and then letting it feed the data directly into > the backend unmodified, as the frontend does have deep enough fifo-s. > > Note since u-boot-v2015.01 has been released using the de_be0-lcd0-hdmi > pipeline on sun4i, we need to keep that one around too (unfortunately). > > Signed-off-by: Hans de Goede Merged, thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: