Change in coreboot[master]: mb/google/dedede/var/pirika: Configure I2C times for touchpad

[Alex1 Kao (Code Review)]

Alex1 Kao has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/56383 )

Change subject: mb/google/dedede/var/pirika: Configure I2C times for touchpad
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mb/google/dedede/var/pirika: Configure I2C times for touchpad

Configure I2C high / low time in the device tree to ensure I2C
CLK runs accurately between 380 kHz and 400 kHz.

BUG=b:193864546
BRANCH=dedede
TEST=Build and check after tuning I2C clock is between 380 kHz and 400 kHz

Signed-off-by: Alex1 Kao 
Change-Id: Ia57c90ead44ceb0990878dc0566e595bae5a9099
---
M src/mainboard/google/dedede/variants/pirika/overridetree.cb
1 file changed, 6 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/83/56383/1

diff --git a/src/mainboard/google/dedede/variants/pirika/overridetree.cb b/src/mainboard/google/dedede/variants/pirika/overridetree.cb
index 80d2dbe..d7d23db 100644
--- a/src/mainboard/google/dedede/variants/pirika/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/pirika/overridetree.cb
@@ -21,6 +21,12 @@
    	},
    	.i2c[0] = {
    		.speed = I2C_SPEED_FAST,
+			.speed_config[0] = {
+				.speed = I2C_SPEED_FAST,
+				.scl_lcnt = 190,
+				.scl_hcnt = 100,
+				.sda_hold = 40,
+			}
    	},
    	.i2c[1] = {
    		.speed = I2C_SPEED_FAST,