zanxi chen has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/55109 ) Change subject: mb/google/dedede/var/storo: Modify I2C times for touchpad ...................................................................... mb/google/dedede/var/storo: Modify I2C times for touchpad Configure I2C rise/fall time in device tree to ensure I2C CLK runs accurately (380<frequency<400 kHz). Measured touchpad I2C frequency is 394 kHz BUG=b:189740533 BRANCH=dedede TEST=Build bios and make sure frequency meets specification. Change-Id: Ibc0504a5be6fe9237b8b30783c659a761d10561a Signed-off-by: Zanxi Chen <chenzanxi@huaqin.corp-partner.google.com> --- M src/mainboard/google/dedede/variants/storo/overridetree.cb 1 file changed, 2 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/09/55109/1 diff --git a/src/mainboard/google/dedede/variants/storo/overridetree.cb b/src/mainboard/google/dedede/variants/storo/overridetree.cb index 40b17df..6336192 100644 --- a/src/mainboard/google/dedede/variants/storo/overridetree.cb +++ b/src/mainboard/google/dedede/variants/storo/overridetree.cb @@ -26,8 +26,8 @@ }, .i2c[0] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 125, - .fall_time_ns = 19, + .rise_time_ns = 260, + .fall_time_ns = 50, }, .i2c[1] = { .speed = I2C_SPEED_FAST, -- To view, visit https://review.coreboot.org/c/coreboot/+/55109 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Ibc0504a5be6fe9237b8b30783c659a761d10561a Gerrit-Change-Number: 55109 Gerrit-PatchSet: 1 Gerrit-Owner: zanxi chen <chenzanxi@huaqin.corp-partner.google.com> Gerrit-MessageType: newchange