Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/37322 )
Change subject: mb/google/hatch/akemi: Set touchpad data hold time more than 300ns ......................................................................
mb/google/hatch/akemi: Set touchpad data hold time more than 300ns
According to SI team and vendor request, need to tune I2C bus 0 data hold time more than 300ns
BUG=b:146163044 TEST=build firmware and measure I2C bus 0 data hold time
Signed-off-by: Peichao Wang peichao.wang@bitland.corp-partner.google.com Change-Id: I75e33419cbaef746487de6ee8628d07cf08adaa9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/37322 Reviewed-by: Tim Wawrzynczak twawrzynczak@chromium.org Reviewed-by: Philip Chen philipchen@google.com Tested-by: build bot (Jenkins) no-reply@coreboot.org --- M src/mainboard/google/hatch/variants/akemi/overridetree.cb 1 file changed, 1 insertion(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Philip Chen: Looks good to me, approved Tim Wawrzynczak: Looks good to me, approved
diff --git a/src/mainboard/google/hatch/variants/akemi/overridetree.cb b/src/mainboard/google/hatch/variants/akemi/overridetree.cb index 9b0f5f7..d236cb0 100644 --- a/src/mainboard/google/hatch/variants/akemi/overridetree.cb +++ b/src/mainboard/google/hatch/variants/akemi/overridetree.cb @@ -57,6 +57,7 @@ .speed = I2C_SPEED_FAST, .rise_time_ns = 50, .fall_time_ns = 15, + .data_hold_time_ns = 400, }, .i2c[1] = { .speed = I2C_SPEED_FAST,