Kevin Chiu has uploaded this change for review. ( https://review.coreboot.org/28119
Change subject: google/grunt: Update TP/TS/H1 i2c timings ......................................................................
google/grunt: Update TP/TS/H1 i2c timings
After adjustment on Careena EVT TP: 396.8 KHz TS: 398.4 KHz H1: 396.8 KHz
BUG=b:112663934,b:112664258 BRANCH=master TEST=emerge-grunt coreboot measure by scope Change-Id: I9eeaf9290d95969a283f14618878e28faf0ea46f Signed-off-by: Kevin Chiu Kevin.Chiu@quantatw.com --- M src/mainboard/google/kahlee/variants/careena/devicetree.cb 1 file changed, 5 insertions(+), 5 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/19/28119/1
diff --git a/src/mainboard/google/kahlee/variants/careena/devicetree.cb b/src/mainboard/google/kahlee/variants/careena/devicetree.cb index 61476a2..513bd4e 100644 --- a/src/mainboard/google/kahlee/variants/careena/devicetree.cb +++ b/src/mainboard/google/kahlee/variants/careena/devicetree.cb @@ -32,22 +32,22 @@ 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 = 67, + .fall_time_ns = 55, }"
# Enable I2C3 for touchscreen at 400kHz register "i2c[3]" = "{ .speed = I2C_SPEED_FAST, - .rise_time_ns = 82, - .fall_time_ns = 67, + .rise_time_ns = 22, + .fall_time_ns = 19, }"
device cpu_cluster 0 on