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authorMatt DeVillier <matt.devillier@amd.corp-partner.google.com>2023-01-11 18:02:31 -0600
committerMartin L Roth <gaumless@gmail.com>2023-01-15 02:02:18 +0000
commitcf440b6530fa92474c34a994c6563ccc834e12a1 (patch)
treec7cd51593529b4de051668105c8f638547a912eb /Documentation
parentce7b252c4f6c2d44c98a033b13caa48c6cbd2b33 (diff)
downloadcoreboot-cf440b6530fa92474c34a994c6563ccc834e12a1.tar.gz
drivers/uart/acpi: Drop 'disable_gpio_export_in_crs' flag
Exposing the GPIOs via an ACPI PowerResource and the _CRS results in the OS driver and ACPI thinking they own the GPIO. This can cause timing problems because it's not clear which system should be controlling the GPIO. There's no reason to require explicit disablement however, so drop the superfluous 'disable' flag, and change the _CRS generation to check if the GPIOs will be exported via the 'has_power_resource' flag instead. This mirrors the change made for drivers/i2c/generic. TEST=untested, as no boards selected this option. Change-Id: Icb60502a4a7c5e7a1fcf1ee60e23c77e00d6de7b Signed-off-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/71851 Reviewed-by: Martin L Roth <gaumless@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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