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chromeos: clean up "recovery" and "write protect" GPIOs

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The "write protect" GPIO's cached value is never actually
read after entering depthcharge.  Ensure the value from
get_write_protect_state() is being transferred accurately,
so that we may read this GPIO value in depthcharge without
resampling.

The cached value of the "recovery" GPIO is read only on certain
boards which have a physical recovery switch.  Correct some of
the values sent to boards which presumably never read the
previously incorrect value.  Most of these inaccuracies are from
non-inverted values on ACTIVE_LOW GPIOs.

BUG=b:124141368, b:124192753, chromium:950273
TEST=make clean && make test-abuild
BRANCH=none

Change-Id: Ic17a98768703d7098480a9233b752fe5b201bd51
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32233
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Joel Kitching
2019-04-07 00:37:14 +08:00
committed by Patrick Georgi
parent 482eec0e1b
commit ae0fb762a2
23 changed files with 51 additions and 49 deletions
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2
src/mainboard/google/smaug/chromeos.c
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@@ -22,7 +22,7 @@ void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{WRITE_PROTECT_L, ACTIVE_LOW,
gpio_get(WRITE_PROTECT_L), "write protect"},
!get_write_protect_state(), "write protect"},
{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
{POWER_BUTTON, ACTIVE_LOW, -1, "power"},
{EC_IN_RW, ACTIVE_HIGH, -1, "EC in RW"},