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| author | Tyler Wang <tyler.wang@quanta.corp-partner.google.com> | 2023-12-12 10:04:47 +0800 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2023-12-22 12:28:13 +0000 |
| commit | e41bf5f37388bc4cfa96eb84fff5a66766fbd14d (patch) | |
| tree | 98d3f6b58aa786570be6ee4f02d67ceff7828238 /src/acpi/acpi.c | |
| parent | ba07f95992d4a430383696a4654ad222178df242 (diff) | |
mb/google/rex/var/karis: Adjust touchscreen power-on sequence
According to datasheet, EN_TCHSCR_PWR high --> SOC_TCHSCR_RST_R_L high
should over 5ms. And current measure result is 200us.
Set EN_TCHSCR_PWR to output high in bootblock to make it meet datasheet
requirment.
Measurement result of EN_TCHSCR_PWR high --> SOC_TCHSCR_RST_R_L high:
Power on --> 31.7 ms
Resume --> 38.7 ms
BUG=b:314245238
TEST=Measure the sequence
Change-Id: I56e455a980b465f27794b30df058ec0944befc2e
Signed-off-by: Tyler Wang <tyler.wang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79571
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/acpi/acpi.c')
0 files changed, 0 insertions, 0 deletions