diff options
| author | Chris Zhou <chris_zhou@compal.corp-partner.google.com> | 2018-10-08 11:36:48 +0800 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-10-09 14:33:22 +0000 |
| commit | 3087bf528352d1ee663e028cd951c94199b6c322 (patch) | |
| tree | 1d95cda0b4323eb1daee0ffb92260a0a92e8a472 /src | |
| parent | 56dceb2e1a05191d6bf10498a461673f9a6c5279 (diff) | |
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')
| -rw-r--r-- | src/mainboard/google/kahlee/variants/liara/devicetree.cb | 12 |
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 |