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authorPeichao Wang <peichao.wang@bitland.corp-partner.google.com>2019-11-19 11:42:42 +0800
committerPatrick Georgi <pgeorgi@google.com>2019-11-23 10:55:17 +0000
commitd0c52b72f3b225d13a4f7ab79bcba5ca8af166a8 (patch)
tree52d0f4cad0e53eb4c1c0831860eda9a832f53d03 /src/mainboard/google/kahlee
parent1bdfe8c2805db396c7188dd5264bf80e7782b8ba (diff)
downloadcoreboot-d0c52b72f3b225d13a4f7ab79bcba5ca8af166a8.tar.xz
mb/google/kahlee/treeya: Set touchpad hold time to 400ns
According to SI team request, need to tune I2C bus 2 data hold time more than 300ns BUG=b:144736027 TEST=build firmware and measure I2C bus 2 data hold time Signed-off-by: Peichao Wang <peichao.wang@bitland.corp-partner.google.com> Change-Id: Idc58a595c77eba8544f27682a284be6aac5dbe25 Reviewed-on: https://review.coreboot.org/c/coreboot/+/36945 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/kahlee')
-rw-r--r--src/mainboard/google/kahlee/variants/treeya/devicetree.cb1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mainboard/google/kahlee/variants/treeya/devicetree.cb b/src/mainboard/google/kahlee/variants/treeya/devicetree.cb
index e8477eeb6a..e35f00c380 100644
--- a/src/mainboard/google/kahlee/variants/treeya/devicetree.cb
+++ b/src/mainboard/google/kahlee/variants/treeya/devicetree.cb
@@ -44,6 +44,7 @@ chip soc/amd/stoneyridge
.speed = I2C_SPEED_FAST,
.rise_time_ns = 3,
.fall_time_ns = 2,
+ .data_hold_time_ns = 400,
}"
# Enable I2C3 for touchscreen at 400kHz