diff options
| author | Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com> | 2019-01-16 18:07:46 +0800 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@chromium.org> | 2019-01-18 04:01:38 +0000 |
| commit | 1e7d69944d3c406bae4c31ac21e7967681f432a6 (patch) | |
| tree | 863ae49f5b1a78e890b613b3a4c74885379878dc /src/mainboard | |
| parent | 9cb2da45d8240de73b2a8677f9874ca947d03c11 (diff) | |
mb/google/sarien/variants/sarien: Adjust TP/TS/H1 I2C CLK to meet spec
After adjustment on Sarien EVT
TouchScreen: 380.7 KHz
TouchPad: 379.3 KHz
H1: 392.2 KHz
BUG=b:122657195
BRANCH=master
TEST=emerge-sarien coreboot chromeos-bootimage
measure by scope
Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Change-Id: I0dd92b054d934b38a17898dc8ce9cc18bda1633f
Reviewed-on: https://review.coreboot.org/c/30949
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/sarien/variants/sarien/devicetree.cb | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb index 4334c45083..59f1f30c88 100644 --- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb +++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb @@ -81,17 +81,19 @@ chip soc/intel/cannonlake .chipset_lockdown = CHIPSET_LOCKDOWN_COREBOOT, .i2c[0] = { .speed = I2C_SPEED_FAST, + .rise_time_ns = 190, + .fall_time_ns = 120, }, .i2c[1] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 176, - .fall_time_ns = 15, + .rise_time_ns = 52, + .fall_time_ns = 110, }, .i2c[4] = { .early_init = 1, .speed = I2C_SPEED_FAST, - .rise_time_ns = 280, - .fall_time_ns = 90, + .rise_time_ns = 36, + .fall_time_ns = 99, }, }" |