Revision ed7f5cb823e88f9d91c4cad58fbb77f35dcbc52c authored by Eric Anholt on 14 September 2016, 18:21:29 UTC, committed by popcornmix on 08 January 2017, 11:41:56 UTC
On Pi0/1/2, we use an external GPIO line for hotplug detection, since
the HDMI_HOTPLUG register isn't connected to anything.  However, with
the Pi3 the HPD GPIO line has moved off to a GPIO expander that will
be tricky to get to (the firmware is constantly polling the expander
using i2c0, so we'll need to coordinate with it).

As a stop-gap, if we don't have a GPIO line, use an EDID probe to
detect connection.  Fixes HDMI display on the pi3.

Signed-off-by: Eric Anholt <eric@anholt.net>
1 parent 6a63898
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arch
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include
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lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.cocciconfig -rw-r--r-- 59 bytes
.get_maintainer.ignore -rw-r--r-- 31 bytes
.gitignore -rw-r--r-- 1.3 KB
.mailmap -rw-r--r-- 7.3 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 95.5 KB
Kbuild -rw-r--r-- 2.8 KB
Kconfig -rw-r--r-- 252 bytes
MAINTAINERS -rw-r--r-- 363.9 KB
Makefile -rw-r--r-- 56.9 KB
README -rw-r--r-- 18.1 KB
REPORTING-BUGS -rw-r--r-- 7.3 KB

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