diff options
| author | Karthikeyan Ramasubramanian <kramasub@google.com> | 2024-08-02 09:41:34 -0600 |
|---|---|---|
| committer | Karthik Ramasubramanian <kramasub@google.com> | 2024-08-07 16:23:14 +0000 |
| commit | c3245274e960670fc7092a6676e3fb95ca8ea7fd (patch) | |
| tree | ba057b5e23ad389b6cc1e542d4bbe0fe9f4f7d14 /src | |
| parent | 53337836e483131f36141a4c42413393869b1f04 (diff) | |
mb/google/brox: Tune Touchpad I2C parameters
Adjust Touchpad I2C fall time configuration such that it meets the
I2C fast mode specification(<= 400KHz).
BUG=b:328670295
TEST=Build Brox firmware and boot to OS. Confirm the I2C bus
frequency(375 KHz), rise(650 ns) and fall(330 ns) times meet the
specification.
Change-Id: I0006bfb9bb5839ffa1248d9f2ea055160ed0936e
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83755
Reviewed-by: Bob Moragues <moragues@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb b/src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb index 89c714d2bf..9fbf7437a8 100644 --- a/src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb +++ b/src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb @@ -103,7 +103,7 @@ chip soc/intel/alderlake .i2c[0] = { .speed = I2C_SPEED_FAST, .rise_time_ns = 650, - .fall_time_ns = 350, + .fall_time_ns = 330, .data_hold_time_ns = 50, }, .i2c[1] = { |