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Diffstat (limited to 'src/drivers/i2c/generic')
| -rw-r--r-- | src/drivers/i2c/generic/generic.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/drivers/i2c/generic/generic.c b/src/drivers/i2c/generic/generic.c index 981c2d9532..15fe7adebb 100644 --- a/src/drivers/i2c/generic/generic.c +++ b/src/drivers/i2c/generic/generic.c @@ -77,6 +77,16 @@ void i2c_generic_fill_ssdt(const struct device *dev, } } + if (config->has_power_resource && !config->disable_gpio_export_in_crs) { + /* + * This case will most likely cause timing problems. The OS driver might be + * controlling the GPIOs, but the ACPI Power Resource will also be controlling + * them. This will result in the two fighting and stomping on each other. + */ + printk(BIOS_ERR, "%s: Exposing GPIOs in Power Resource and _CRS\n", + dev_path(dev)); + } + /* Device */ acpigen_write_scope(scope); acpigen_write_device(acpi_device_name(dev)); |