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(a)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,
},
--
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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(a)compal.corp-partner.google.com>