[coreboot-gerrit] Change in coreboot[master]: mb/google/poppy/variants/nami: Tune trackpad data hold time

Crystal Lin (Code Review) gerrit at coreboot.org
Tue Jun 26 10:33:03 CEST 2018


Crystal Lin has uploaded this change for review. ( https://review.coreboot.org/27239


Change subject: mb/google/poppy/variants/nami: Tune trackpad data hold time
......................................................................

mb/google/poppy/variants/nami: Tune trackpad data hold time

In ELAN trackpad spec, I2C data hold time should between 0.3us ~
0.9us, but measured value is 0.26us. Tune trackpad I2C hold time
config to meet the spec.

BUG=b:110796956
BRANCH=None
TEST=Check trackpad I2C data hold time between 0.3us ~ 0.9us

Change-Id: Ic713a2df7ca94005fda25a1d8f847fd772742998
Signed-off-by: Crystal Lin <crystal_lin at compal.corp-partner.google.com>
---
M src/mainboard/google/poppy/variants/nami/devicetree.cb
1 file changed, 1 insertion(+), 1 deletion(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/39/27239/1

diff --git a/src/mainboard/google/poppy/variants/nami/devicetree.cb b/src/mainboard/google/poppy/variants/nami/devicetree.cb
index 54d989f..82a8137 100644
--- a/src/mainboard/google/poppy/variants/nami/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nami/devicetree.cb
@@ -241,7 +241,7 @@
 				.speed = I2C_SPEED_FAST,
 				.scl_lcnt = 185,
 				.scl_hcnt = 90,
-				.sda_hold = 36,
+				.sda_hold = 72,
 			},
 			.early_init = 1,
 		},

-- 
To view, visit https://review.coreboot.org/27239
To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings

Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ic713a2df7ca94005fda25a1d8f847fd772742998
Gerrit-Change-Number: 27239
Gerrit-PatchSet: 1
Gerrit-Owner: Crystal Lin <crystal_lin at compal.corp-partner.google.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.coreboot.org/pipermail/coreboot-gerrit/attachments/20180626/39c6c75a/attachment.html>


More information about the coreboot-gerrit mailing list