Temporarily disable dutflaga/b GPIO export on all platforms.
We keep seeing a problem with unexpected signals read on these exported
GPIOs on several boards (just saw it on Lumpy, too). Currently, Alex is
the only board we actually trust in this respect, but for the time being
we'll still disable dutflaga/b GPIO export across the board. We should
also implement a safe fallback mechanism for the server URL prior to
re-enabling GPIO export for individual boards.
BUG=chromium-os:27077
TEST=Solves the problem seen on ZGB/Lumpy.
Change-Id: Id31ba390eae59a4d3581eb3725313e51807e018b
Reviewed-on: https://gerrit.chromium.org/gerrit/17165
Reviewed-by: Andrew de los Reyes <adlr@chromium.org>
Tested-by: Gilad Arnold <garnold@chromium.org>
Commit-Ready: Gilad Arnold <garnold@chromium.org>
diff --git a/99-gpio-dutflag.rules b/99-gpio-dutflag.rules
index c93c508..9266e20 100644
--- a/99-gpio-dutflag.rules
+++ b/99-gpio-dutflag.rules
@@ -10,23 +10,25 @@
# Identify the GPIO chip and set dut_flaga identifier on different platforms.
# Unfortunately, Mario does not have a debug header, hence no GPIOs exposed.
#
+# TODO(garnold) dutflaga/b export is disabled until we figure out what's
+# pulling the signal up on zgb and lumpy, and implement a safe fallback
+# machanism for such cases where autoupdate fails with the internal address
+# (http://code.google.com/p/chromium-os/issues/detail?id=27077)
+
# - Alex:
-ATTR{[dmi/id]product_name}=="Alex", SUBSYSTEM=="gpio", KERNEL=="gpiochip192", \
- ENV{ID_GPIO_DUTFLAGA}="205", ENV{ID_GPIO_DUTFLAGB}="202"
+#ATTR{[dmi/id]product_name}=="Alex", SUBSYSTEM=="gpio", KERNEL=="gpiochip192", \
+# ENV{ID_GPIO_DUTFLAGA}="205", ENV{ID_GPIO_DUTFLAGB}="202"
# - ZGB:
-# TODO(garnold) dutflaga/b export is disabled until we figure out what's pulling
-# the signal up (http://code.google.com/p/chromium-os/issues/detail?id=27077)
#ATTR{[dmi/id]product_name}=="ZGB", SUBSYSTEM=="gpio", KERNEL=="gpiochip192", \
# ENV{ID_GPIO_DUTFLAGA}="216", ENV{ID_GPIO_DUTFLAGB}="195"
# - Lumpy, Stumpy:
-# TODO(garnold) Stumpy is current disabled, as its dutflag GPIOs are
-# non-pull-up wired, which means that they can read arbitrary values when not
-# connected to Servo. Once fixed or properly handled by the application, this
-# should read "Lumpy|Stumpty".
-ATTR{[dmi/id]product_name}=="Lumpy", SUBSYSTEM=="gpio", KERNEL=="gpiochip160", \
- ENV{ID_GPIO_DUTFLAGA}="173", ENV{ID_GPIO_DUTFLAGB}="170"
+# TODO(garnold) stumpy's dutflag GPIOs are non-pull-up wired, which means that
+# they can read arbitrary values when not connected to Servo. Once fixed or
+# properly handled by the application, this should read "Lumpy|Stumpy".
+#ATTR{[dmi/id]product_name}=="Lumpy", SUBSYSTEM=="gpio", KERNEL=="gpiochip160", \
+# ENV{ID_GPIO_DUTFLAGA}="173", ENV{ID_GPIO_DUTFLAGB}="170"
# Export dut_flaga/b and register their identifier as an attribute.
ACTION=="add|change", SUBSYSTEM=="gpio", \