SH Kim has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/82100?usp=email )
Change subject: mb/google/brya/var/xol: Update I2C5 timing parameter ......................................................................
mb/google/brya/var/xol: Update I2C5 timing parameter
Update I2C5 timing parameter values to meet touchpad spec.
BUG=None BRANCH=brya TEST=built and measure I2C5 timing parameters tLOW : 2.06 us tHIGH: 1.05 us tHD : 0.42 us FSCL : 304 KHz
Change-Id: I386b2765410fd10b8cd711f54478fb52428de5a3 Signed-off-by: Seunghwan Kim sh_.kim@samsung.corp-partner.google.com --- M src/mainboard/google/brya/variants/xol/overridetree.cb 1 file changed, 2 insertions(+), 3 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/00/82100/1
diff --git a/src/mainboard/google/brya/variants/xol/overridetree.cb b/src/mainboard/google/brya/variants/xol/overridetree.cb index 80d15fe..e60d535 100644 --- a/src/mainboard/google/brya/variants/xol/overridetree.cb +++ b/src/mainboard/google/brya/variants/xol/overridetree.cb @@ -131,9 +131,8 @@ }, .i2c[5] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 650, - .fall_time_ns = 400, - .data_hold_time_ns = 50, + .rise_time_ns = 112, + .fall_time_ns = 2, }, }"