[XS] Change in coreboot[main]: mb/google/dedede/var/awasuki: Tune I2C touchpad for freq and TH

[Eric Lai (Code Review)]

Eric Lai has submitted this change. ( https://review.coreboot.org/c/coreboot/+/84898?usp=email )

(

6 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted one.
 )Change subject: mb/google/dedede/var/awasuki: Tune I2C touchpad for freq and TH
......................................................................

mb/google/dedede/var/awasuki: Tune I2C touchpad for freq and TH

1. Modify the I2C frequency of the touchpad between 380 Khz and
400 Khz to meet the spec.
2. Increase clk the time of high (TH) to greater than 600ns.

Before:
I2C0 - 420KHz
TH - 557ns

After:
I2C0 - 398Khz
TH - 630ns

BUG=b:351968527
TEST=Check that the wave form meets the spec.

Change-Id: I5ccaa3a669e18319311de14833966410c7adf40d
Signed-off-by: Hualin Wei 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84898
Reviewed-by: Eric Lai 
Tested-by: build bot (Jenkins) 
Reviewed-by: Paul Menzel 
Reviewed-by: Weimin Wu 
---
M src/mainboard/google/dedede/variants/awasuki/overridetree.cb
1 file changed, 6 insertions(+), 0 deletions(-)

Approvals:
  Paul Menzel: Looks good to me, but someone else must approve
  Eric Lai: Looks good to me, approved
  build bot (Jenkins): Verified
  Weimin Wu: Looks good to me, but someone else must approve

diff --git a/src/mainboard/google/dedede/variants/awasuki/overridetree.cb b/src/mainboard/google/dedede/variants/awasuki/overridetree.cb
index 6a7df2f..cc7eba83 100644
--- a/src/mainboard/google/dedede/variants/awasuki/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/awasuki/overridetree.cb
@@ -30,6 +30,12 @@
    	},
    	.i2c[0] = {
    		.speed = I2C_SPEED_FAST,
+			.speed_config[0] = {
+				.speed = I2C_SPEED_FAST,
+				.scl_lcnt = 178,
+				.scl_hcnt = 92,
+				.sda_hold = 40,
+			}
    	},
    	.i2c[2] = {
    		.speed = I2C_SPEED_FAST,