diff options
| author | Lijian Zhao <lijian.zhao@intel.com> | 2019-01-03 13:32:44 -0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-01-07 10:29:54 +0000 |
| commit | aae963732ce7cd317d6619001ba8dfb2c2385ad5 (patch) | |
| tree | fe2e5763bcafc10f0b5e84181c62eaea2635a3fe /src/mainboard/google/sarien | |
| parent | 08618bd2ab6d456309539d8fbdbca3e7391b938c (diff) | |
mb/google/sarien: Correct I2C bus clock for touchpad
Elan touchpad require connected i2c clock to be running at 400Khz, with
the modification can get 404Khz speed from Arcada EVT platform.
BUG=b:119628524
TEST=Build and boot up on Arcada platform, measure the i2c clock is
around 400Khz.
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Change-Id: If717cdd6b73394125df54d90f729ffb4ef37b087
Reviewed-on: https://review.coreboot.org/c/30653
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/mainboard/google/sarien')
| -rw-r--r-- | src/mainboard/google/sarien/variants/arcada/devicetree.cb | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mainboard/google/sarien/variants/arcada/devicetree.cb b/src/mainboard/google/sarien/variants/arcada/devicetree.cb index 52840de860..5fdf8fd771 100644 --- a/src/mainboard/google/sarien/variants/arcada/devicetree.cb +++ b/src/mainboard/google/sarien/variants/arcada/devicetree.cb @@ -65,8 +65,8 @@ chip soc/intel/cannonlake }, .i2c[1] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 216, - .fall_time_ns = 28, + .rise_time_ns = 176, + .fall_time_ns = 15, }, .i2c[4] = { .early_init = 1, |