diff options
| author | Nick Vaccaro <nvaccaro@google.com> | 2018-11-30 16:02:14 -0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-12-03 13:08:23 +0000 |
| commit | f39e0f9318c44dc51f7b439c84bfe2fbe9940960 (patch) | |
| tree | 3f2ceed1a3ed2b7b9745764d020b4ff20c3053a1 | |
| parent | c4ce11b8bff7af7c387014094fbb2877725cfe53 (diff) | |
mb/google/poppy/variant/nocturne: increase touch panel power-on delay
The WACOM 5C01 touch panel power-up delay of 10mS is too aggressive
and causes "failed to change power setting" errors in the kernel, so
this change increases the power-up delay to 20mS which allows enough
time for the WACOM device's i2c controller to wake up.
BUG=b:120090384
BRANCH=none
TEST=flash and boot nocturne, log into kernel, execute the following
command and make sure the string is not found :
dmesg | grep "failed to change power setting"
Change-Id: I1db0b3f5ce666b79d8ada2939ec865233ce52a56
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/29988
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/mainboard/google/poppy/variants/nocturne/devicetree.cb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb index 1786502365..031c7ff369 100644 --- a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb +++ b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb @@ -320,7 +320,7 @@ chip soc/intel/skylake register "generic.speed" = "I2C_SPEED_FAST_PLUS" register "generic.probed" = "1" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E11)" - register "generic.reset_delay_ms" = "10" + register "generic.reset_delay_ms" = "20" register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C22)" register "generic.enable_delay_ms" = "1" register "generic.has_power_resource" = "1" |