From mboxrd@z Thu Jan 1 00:00:00 1970 From: marvin24@gmx.de (Marc Dietrich) Date: Fri, 27 Dec 2013 00:18:30 +0100 Subject: [PATCH 2/2] ARM: tegra: paz00: Add LVDS support to device tree In-Reply-To: <12640298.egJ6YnqTYx@ax5200p> References: <1519363.agF5fhqzYs@ax5200p> <12640298.egJ6YnqTYx@ax5200p> Message-ID: <4478357.8zXrzzag7Z@ax5200p> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thursday 26 December 2013 14:52:10 Marc Dietrich wrote: > On Saturday 21 December 2013 23:11:58 Marc Dietrich wrote: > > Sorry, Stephen, I mistyped your email address in the first post. > > > > On Saturday 21 December 2013 21:38:13 Marc Dietrich wrote: > > > Add backlight and panel nodes for the PAZ00 TFT LCD panel. > > > > > > Signed-off-by: Marc Dietrich > > > --- > > > This should enable everything needed. Unfortunately, in my tests it only > > > switches on the backlight, but the display controller blocks in some > > > infinit loop, so we get no output (and no working system). I post it > > > here > > > in case I missed something obvious... > > Some users reported that it works when using uboot (yeah, shame on me that I > still use fastboot on my dev machine), so I did a bit more research. It > indeed works when using uboot, even when the display setup is disabled > there. So my guess is that maybe some clock isn't setup by fastboot which > is done by uboot. ok, to bring this self-conversation to an end, the cpu blocks at a memory barrier right after value = tegra_dc_readl(rgb->dc, DC_CMD_DISPLAY_COMMAND); in tegra_output_rgb_disable (rgb.c).