Chris Zhou has uploaded this change for review. ( https://review.coreboot.org/28960
Change subject: mb/google/kahlee/variants/liara: Update H1/TP/TS i2c timings ......................................................................
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 --- M src/mainboard/google/kahlee/variants/liara/devicetree.cb 1 file changed, 6 insertions(+), 6 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/60/28960/1
diff --git a/src/mainboard/google/kahlee/variants/liara/devicetree.cb b/src/mainboard/google/kahlee/variants/liara/devicetree.cb index a213492..0dfe204 100644 --- a/src/mainboard/google/kahlee/variants/liara/devicetree.cb +++ b/src/mainboard/google/kahlee/variants/liara/devicetree.cb @@ -32,22 +32,22 @@ 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