diff options
| author | Subrata Banik <subratabanik@google.com> | 2022-11-15 18:11:36 +0530 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-11-17 13:30:22 +0000 |
| commit | 0427788e2449abb1ebc318dc5e93d6aa5cc0aa6d (patch) | |
| tree | 874f8f10d17386c8edb658141cb97549ec14663f /src/mainboard/google/rex/variants | |
| parent | 3e8f8c162d61dc6dbe982a9d6906ab925418e96e (diff) | |
mb/google/rex: Add `disable_gpio_export_in_crs` for rex
None of the touchscreens (over I2C) used in the rex program requires
exporting GPIOs in the ACPI _CRS method.
This can cause i2c devices to malfunction or cause timing
sequence violations if ACPI exports a PowerResource for the
device that uses GPIOs that are also exported in _CRS.
BUG=none
TEST=Able to build and boot Google, Rex platform.
Without this patch:
[ERROR] I2C: 00:10: Exposing GPIOs in Power Resource and _CRS
With this patch:
None
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I578a60eff27f94d6dc94b900604bc7560337d60b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69612
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/rex/variants')
| -rw-r--r-- | src/mainboard/google/rex/variants/rex0/overridetree.cb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mainboard/google/rex/variants/rex0/overridetree.cb b/src/mainboard/google/rex/variants/rex0/overridetree.cb index a7f5a95c32..f3b0fab35a 100644 --- a/src/mainboard/google/rex/variants/rex0/overridetree.cb +++ b/src/mainboard/google/rex/variants/rex0/overridetree.cb @@ -357,6 +357,7 @@ chip soc/intel/meteorlake register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C06)" register "generic.stop_off_delay_ms" = "2" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 10 on end end |