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authorChris Zhou <chris_zhou@compal.corp-partner.google.com>2018-10-08 11:36:48 +0800
committerMartin Roth <martinroth@google.com>2018-10-09 14:33:22 +0000
commit3087bf528352d1ee663e028cd951c94199b6c322 (patch)
tree1d95cda0b4323eb1daee0ffb92260a0a92e8a472 /src/mainboard/google/kahlee
parent56dceb2e1a05191d6bf10498a461673f9a6c5279 (diff)
downloadcoreboot-3087bf528352d1ee663e028cd951c94199b6c322.tar.xz
mb/google/kahlee/variants/liara: Update H1/TP/TS i2c timings
After adjustment on Liara EVT H1: 392.03 KHz TP: 397.87 KHz TS: 397.71 KHz BUG=b:116309237 BRANCH=master TEST=emerge-grunt coreboot chromeos-bootimage measure by scope Change-Id: Ib5d7ce09ac58f33ee826d7541e1a0d14a03add9a Signed-off-by: Chris Zhou <chris_zhou@compal.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/28960 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/mainboard/google/kahlee')
-rw-r--r--src/mainboard/google/kahlee/variants/liara/devicetree.cb12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/mainboard/google/kahlee/variants/liara/devicetree.cb b/src/mainboard/google/kahlee/variants/liara/devicetree.cb
index a2134922e8..0dfe204bfa 100644
--- a/src/mainboard/google/kahlee/variants/liara/devicetree.cb
+++ b/src/mainboard/google/kahlee/variants/liara/devicetree.cb
@@ -32,22 +32,22 @@ chip soc/amd/stoneyridge
register "i2c[1]" = "{
.early_init = 1,
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 45,
- .fall_time_ns = 4,
+ .rise_time_ns = 3,
+ .fall_time_ns = 2,
}"
# Enable I2C2 for trackpad, pen at 400kHz
register "i2c[2]" = "{
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 48,
- .fall_time_ns = 37,
+ .rise_time_ns = 3,
+ .fall_time_ns = 2,
}"
# Enable I2C3 for touchscreen at 400kHz
register "i2c[3]" = "{
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 82,
- .fall_time_ns = 67,
+ .rise_time_ns = 16,
+ .fall_time_ns = 8,
}"
device cpu_cluster 0 on