diff options
| -rw-r--r-- | src/mainboard/google/reef/variants/baseboard/devicetree.cb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/variants/baseboard/devicetree.cb b/src/mainboard/google/reef/variants/baseboard/devicetree.cb index 5aa1d32ec2..6c8cd8f20d 100644 --- a/src/mainboard/google/reef/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/reef/variants/baseboard/devicetree.cb @@ -95,6 +95,17 @@ chip soc/intel/apollolake } }" + # Limit digitizer speed to 400kHz with manually tuned values. + register "i2c[5]" = "{ + .speed = I2C_SPEED_FAST, + .speed_config[0] = { + .speed = I2C_SPEED_FAST, + .scl_lcnt = 0xd0, + .scl_hcnt = 0x68, + .sda_hold = 0x27, + } + }" + # Minimum SLP S3 assertion width 28ms. register "slp_s3_assertion_width_usecs" = "28000" |