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authorLijian Zhao <lijian.zhao@intel.com>2019-01-03 13:32:44 -0800
committerPatrick Georgi <pgeorgi@google.com>2019-01-07 10:29:54 +0000
commitaae963732ce7cd317d6619001ba8dfb2c2385ad5 (patch)
treefe2e5763bcafc10f0b5e84181c62eaea2635a3fe /src/mainboard/google/sarien
parent08618bd2ab6d456309539d8fbdbca3e7391b938c (diff)
downloadcoreboot-aae963732ce7cd317d6619001ba8dfb2c2385ad5.tar.xz
mb/google/sarien: Correct I2C bus clock for touchpad
Elan touchpad require connected i2c clock to be running at 400Khz, with the modification can get 404Khz speed from Arcada EVT platform. BUG=b:119628524 TEST=Build and boot up on Arcada platform, measure the i2c clock is around 400Khz. Signed-off-by: Lijian Zhao <lijian.zhao@intel.com> Change-Id: If717cdd6b73394125df54d90f729ffb4ef37b087 Reviewed-on: https://review.coreboot.org/c/30653 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/mainboard/google/sarien')
-rw-r--r--src/mainboard/google/sarien/variants/arcada/devicetree.cb4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mainboard/google/sarien/variants/arcada/devicetree.cb b/src/mainboard/google/sarien/variants/arcada/devicetree.cb
index 52840de860..5fdf8fd771 100644
--- a/src/mainboard/google/sarien/variants/arcada/devicetree.cb
+++ b/src/mainboard/google/sarien/variants/arcada/devicetree.cb
@@ -65,8 +65,8 @@ chip soc/intel/cannonlake
},
.i2c[1] = {
.speed = I2C_SPEED_FAST,
- .rise_time_ns = 216,
- .fall_time_ns = 28,
+ .rise_time_ns = 176,
+ .fall_time_ns = 15,
},
.i2c[4] = {
.early_init = 1,