[coreboot-gerrit] Change in ...coreboot[master]: mb/google/poppy/variant/nocturne: increase touch panel power-on delay

[Nick Vaccaro (Code Review)]

Nick Vaccaro has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/29988


Change subject: mb/google/poppy/variant/nocturne: increase touch panel power-on delay
......................................................................

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 at google.com>
---
M src/mainboard/google/poppy/variants/nocturne/devicetree.cb
1 file changed, 1 insertion(+), 1 deletion(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/88/29988/1

diff --git a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
index 1786502..031c7ff 100644
--- a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
@@ -320,7 +320,7 @@
 				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"

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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-Change-Id: I1db0b3f5ce666b79d8ada2939ec865233ce52a56
Gerrit-Change-Number: 29988
Gerrit-PatchSet: 1
Gerrit-Owner: Nick Vaccaro <nvaccaro at google.com>
Gerrit-MessageType: newchange
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