Chris Zhou has uploaded this change for review. ( https://review.coreboot.org/28397
Change subject: google/grunt: Update Audio/H1/TP i2c timings ......................................................................
google/grunt: Update Audio/H1/TP i2c timings
After adjustment on Liara Proto Audio: 399.2 KHz H1: 398.3 KHz TP: 399.0 KHz
BUG=b:113319200 BRANCH=master TEST=emerge-grunt coreboot chromeos-bootimage measure by scope
Change-Id: Ibba8c823ed8451a804cf731d49e7568a94ac7c6b Signed-off-by: Chris Zhou chris_zhou@compal.corp-partner.google.com --- M src/mainboard/google/kahlee/variants/liara/devicetree.cb 1 file changed, 4 insertions(+), 4 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/97/28397/1
diff --git a/src/mainboard/google/kahlee/variants/liara/devicetree.cb b/src/mainboard/google/kahlee/variants/liara/devicetree.cb index b330ec5..cf6dd5f 100644 --- a/src/mainboard/google/kahlee/variants/liara/devicetree.cb +++ b/src/mainboard/google/kahlee/variants/liara/devicetree.cb @@ -24,7 +24,7 @@ # Enable I2C0 for audio, USB3 hub at 400kHz register "i2c[0]" = "{ .speed = I2C_SPEED_FAST, - .rise_time_ns = 95, + .rise_time_ns = 85, .fall_time_ns = 3, }"
@@ -32,15 +32,15 @@ register "i2c[1]" = "{ .early_init = 1, .speed = I2C_SPEED_FAST, - .rise_time_ns = 84, + .rise_time_ns = 45, .fall_time_ns = 4, }"
# Enable I2C2 for trackpad, pen at 400kHz register "i2c[2]" = "{ .speed = I2C_SPEED_FAST, - .rise_time_ns = 117, - .fall_time_ns = 113, + .rise_time_ns = 48, + .fall_time_ns = 37, }"
# Enable I2C3 for touchscreen at 400kHz