git: 6f38d2e7b059 - main - acpi: Add workaround for Altra I2C memory resource
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Date: Wed, 15 Nov 2023 21:28:18 UTC
The branch main has been updated by gallatin:
URL: https://cgit.FreeBSD.org/src/commit/?id=6f38d2e7b0599f9b61c04686eb9a7faf3264b8ec
commit 6f38d2e7b0599f9b61c04686eb9a7faf3264b8ec
Author: Andrew Gallatin <gallatin@FreeBSD.org>
AuthorDate: 2023-11-15 21:22:00 +0000
Commit: Andrew Gallatin <gallatin@FreeBSD.org>
CommitDate: 2023-11-15 21:25:00 +0000
acpi: Add workaround for Altra I2C memory resource
Submitted by: allanjude
Sponsored by: Ampere Computing LLC
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D28741
---
sys/dev/acpica/acpi_resource.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/sys/dev/acpica/acpi_resource.c b/sys/dev/acpica/acpi_resource.c
index 373cc6da9820..b845fd146f67 100644
--- a/sys/dev/acpica/acpi_resource.c
+++ b/sys/dev/acpica/acpi_resource.c
@@ -517,6 +517,13 @@ acpi_parse_resources(device_t dev, ACPI_HANDLE handle,
acpi_MatchHid(handle, "ARMHD620") != ACPI_MATCHHID_NOMATCH)
arc.ignore_producer_flag = true;
+ /*
+ * The DesignWare I2C Controller on Ampere Altra sets ResourceProducer on
+ * memory resources.
+ */
+ if (acpi_MatchHid(handle, "APMC0D0F") != ACPI_MATCHHID_NOMATCH)
+ arc.ignore_producer_flag = true;
+
status = AcpiWalkResources(handle, "_CRS", acpi_parse_resource, &arc);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
printf("can't fetch resources for %s - %s\n",