diff options
| author | kane_chen <kane_chen@pegatron.corp-partner.google.com> | 2018-11-29 17:22:57 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-12-06 12:11:37 +0000 |
| commit | 8440bf7114dbe7777fb0d0b12ec6725bf362f174 (patch) | |
| tree | b1b508da8927acbf813f8042f07f8cf627bb3938 | |
| parent | 56dd2d6ff108105a9349d2644db9706e7d688eeb (diff) | |
rammus: ELAN touchpad I2C special timing requirement
According to issue tracker b:119899090.
https://partnerissuetracker.corp.google.com/issues/119899090
We modify rammus devicetree.cb .i2c[1] configuration to meet ELAN touchpad I2C special timing requirement.
BUG=b:119899090
BRANCH=firmware-rammus-11275.B
TEST=emerge-rammus coreboot chromeos-ec chromeos-bootimage
Flash FW to DUT, and check touchpad I2C characteristics meet requirement
Signed-off-by: YanRu chen <kane_chen@pegatron.corp-partner.google.com>
Change-Id: Ifeb08c2530e6a7674f23f7d48cefa16cfc59cb13
Reviewed-on: https://review.coreboot.org/c/29922
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/mainboard/google/poppy/variants/rammus/devicetree.cb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/poppy/variants/rammus/devicetree.cb b/src/mainboard/google/poppy/variants/rammus/devicetree.cb index f10b84d988..3af712f5ec 100644 --- a/src/mainboard/google/poppy/variants/rammus/devicetree.cb +++ b/src/mainboard/google/poppy/variants/rammus/devicetree.cb @@ -191,7 +191,7 @@ chip soc/intel/skylake .speed = I2C_SPEED_FAST, .speed_config[0] = { .speed = I2C_SPEED_FAST, - .scl_lcnt = 190, + .scl_lcnt = 170, .scl_hcnt = 100, .sda_hold = 36, }, |