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authorPeichao Wang <peichao.wang@bitland.corp-partner.google.com>2019-11-28 17:26:19 +0800
committerPatrick Georgi <pgeorgi@google.com>2019-12-26 10:47:29 +0000
commitda6170a22337af4cf227bdfb4e53fac21516d143 (patch)
tree382a549e1b6b63e4f4aae3ba2f314c8e313bde29
parent58ececfb28f71cd2560fde3a914cca8c7a49c693 (diff)
downloadcoreboot-da6170a22337af4cf227bdfb4e53fac21516d143.tar.xz
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>
-rw-r--r--src/mainboard/google/hatch/variants/akemi/overridetree.cb1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mainboard/google/hatch/variants/akemi/overridetree.cb b/src/mainboard/google/hatch/variants/akemi/overridetree.cb
index 9b0f5f7b60..d236cb0c94 100644
--- a/src/mainboard/google/hatch/variants/akemi/overridetree.cb
+++ b/src/mainboard/google/hatch/variants/akemi/overridetree.cb
@@ -57,6 +57,7 @@ chip soc/intel/cannonlake
.speed = I2C_SPEED_FAST,
.rise_time_ns = 50,
.fall_time_ns = 15,
+ .data_hold_time_ns = 400,
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,