[coreboot-gerrit] Change in coreboot[master]: mb/google/kahlee: Fix I2C bus 0 timing for Grunt

Akshu Agrawal (Code Review) gerrit at coreboot.org
Thu Aug 23 07:11:14 CEST 2018


Akshu Agrawal has uploaded this change for review. ( https://review.coreboot.org/28280


Change subject: mb/google/kahlee: Fix I2C bus 0 timing for Grunt
......................................................................

mb/google/kahlee: Fix I2C bus 0 timing for Grunt

This commit fixes the values and thus fixes the issue of
audio device not getting detected on random reboots.

Change-Id: I34a4f62815d192005c3324d4f71b0aba377fe738
Signed-off-by: Akshu Agrawal <akshu.agrawal at amd.com>
---
M src/mainboard/google/kahlee/variants/grunt/devicetree.cb
1 file changed, 2 insertions(+), 2 deletions(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/80/28280/1

diff --git a/src/mainboard/google/kahlee/variants/grunt/devicetree.cb b/src/mainboard/google/kahlee/variants/grunt/devicetree.cb
index 0a173ac..b749a94 100644
--- a/src/mainboard/google/kahlee/variants/grunt/devicetree.cb
+++ b/src/mainboard/google/kahlee/variants/grunt/devicetree.cb
@@ -24,8 +24,8 @@
 	# Enable I2C0 for audio, USB3 hub at 400kHz
 	register "i2c[0]" = "{
 		.speed = I2C_SPEED_FAST,
-		.rise_time_ns = 151,
-		.fall_time_ns = 50,
+		.rise_time_ns = 95,
+		.fall_time_ns = 3,
 	}"
 
 	# Enable I2C1 for H1 at 400kHz

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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I34a4f62815d192005c3324d4f71b0aba377fe738
Gerrit-Change-Number: 28280
Gerrit-PatchSet: 1
Gerrit-Owner: Akshu Agrawal <akshu.agrawal at amd.com>
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