We were only looking in tegra, VESA and CEA tables.
Let's also check standard video mode definitions table

Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Hack to prevent boot lock-up if HDMI is not connected.

This has been observed on recent T20 SoC production lots produced some
when after mid 2015.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>

drivers/video/tegra/dc/dsi.c: In function 'tegra_dsi_read_fifo':
drivers/video/tegra/dc/dsi.c:2515:3: error: this 'if' clause does not
guard... [-Werror=misleading-indentation]
   if (rd_fifo_cnt << 2 > DSI_READ_FIFO_DEPTH)
   ^~
drivers/video/tegra/dc/dsi.c:2518:4: note: ...this statement, but the
latter is misleadingly indented as if it is guarded by the 'if'
    break;
    ^~~~~

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Max Krummenacher <max.krummenacher@toradex.com>

When connected display EDID presents
aspect ratio that is in valid range,
but it's not in a table of valid ratios
accept it with a warning message.

Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Connecting unsuported screen to HDMI
resulted in kernel panic.

Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

(tegra-l4t-r16-16.5)

Conflicts:
	drivers/media/video/tegra_v4l2_camera.c
	drivers/mmc/host/sdhci.c
	drivers/watchdog/tegra_wdt.c
	include/media/tegra_v4l2_camera.h

The pixel clock polarity setting was wrong: The kernel display flags
are rather somewhat confusing: The flags specify the edge where the
data should be driven by the controller (and hence not sampled by the
display!).
Please note that we don't change the default pixel clock polarity.

Our move to modedb lead to the HDMI display controller always being
enabled (unless forced off by vidargs). This patch makes sure it gets
disabled upon boot disconnected as well as upon later disconnect.

Note: This also fixes DVFS on Colibri T30 in the sense that it will
again stay at 400 MHz EMC as long as no DVI-D aka HDMI display is
connected during boot.