diff options
| author | Rex Chou <rex_chou@compal.corp-partner.google.com> | 2023-01-19 17:44:30 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-01-20 23:16:02 +0000 |
| commit | a16da936800ce48871b2cf16c840f0b281cfdff0 (patch) | |
| tree | 15d0c418e73a9e5063b5b016d4b0ef8993ec7b11 /src/mainboard | |
| parent | 0e9dbf084315f9cb1a5e1a7f15ed3125e38a1806 (diff) | |
mb/google/skyrim/var/frostflow: Update I2C setting for touchpad
Update setting for touchpad I2C frequency and hold time to meet touchpad
i2c SPEC.
- Frequency: 380 ~ 400 kHz
- hold time : 0.3 ~ 0.9 us
BUG=b:261159229
TEST=On frostflow, touchpad i2c spec from EE measure
Frequencies: I2C0 (Touchpad): 393.7 kHz
Hold time = 0.604 us
Change-Id: Iecf4960a12aa56ac307fb9022e47c4e94a2551c1
Signed-off-by: Rex Chou <rex_chou@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72114
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/skyrim/variants/frostflow/overridetree.cb | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb b/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb index bfbaeac4e6..1849f572bd 100644 --- a/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb +++ b/src/mainboard/google/skyrim/variants/frostflow/overridetree.cb @@ -22,7 +22,8 @@ chip soc/amd/mendocino .speed_config[0] = { .speed = I2C_SPEED_FAST, .scl_hcnt = 120, - .scl_lcnt = 215, + .scl_lcnt = 220, + .sda_hold = 90, } }" |