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-rw-r--r--0001-aarch64-acpi-scan-Fix-regression-related-to-X-Gene-U.patch52
1 files changed, 0 insertions, 52 deletions
diff --git a/0001-aarch64-acpi-scan-Fix-regression-related-to-X-Gene-U.patch b/0001-aarch64-acpi-scan-Fix-regression-related-to-X-Gene-U.patch
deleted file mode 100644
index def3fd5b8..000000000
--- a/0001-aarch64-acpi-scan-Fix-regression-related-to-X-Gene-U.patch
+++ /dev/null
@@ -1,52 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Mark Salter <msalter@redhat.com>
-Date: Thu, 10 May 2018 17:38:44 -0400
-Subject: [PATCH] aarch64: acpi scan: Fix regression related to X-Gene UARTs
-
-Message-id: <20180510173844.29580-4-msalter@redhat.com>
-Patchwork-id: 214381
-O-Subject: [RHEL-8 BZ1519554 3/3] aarch64: acpi scan: Fix regression related to X-Gene UARTs
-Bugzilla: 1519554
-RH-Acked-by: Al Stone <astone@redhat.com>
-RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
-
-Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1519554
-Brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=16144520
-
-Commit e361d1f85855 ("ACPI / scan: Fix enumeration for special UART
-devices") caused a regression with some X-Gene based platforms (Mustang
-and M400) with invalid DSDT. The DSDT makes it appear that the UART
-device is also a slave device attached to itself. With the above commit
-the UART won't be enumerated by ACPI scan (slave serial devices shouldn't
-be). So check for X-Gene UART device and skip slace device check on it.
-
-Upstream Status: RHEL only
-Signed-off-by: Mark Salter <msalter@redhat.com>
-Signed-off-by: Herton R. Krzesinski <herton@redhat.com>
----
- drivers/acpi/scan.c | 9 +++++++++
- 1 file changed, 9 insertions(+)
-
-diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
-index 2142f1554761..f5fdf6f3650c 100644
---- a/drivers/acpi/scan.c
-+++ b/drivers/acpi/scan.c
-@@ -1574,6 +1574,15 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
- if (!acpi_match_device_ids(device, i2c_multi_instantiate_ids))
- return false;
-
-+ /*
-+ * Firmware on some arm64 X-Gene platforms will make the UART
-+ * device appear as both a UART and a slave of that UART. Just
-+ * bail out here for X-Gene UARTs.
-+ */
-+ if (IS_ENABLED(CONFIG_ARM64) &&
-+ !strcmp(acpi_device_hid(device), "APMC0D08"))
-+ return false;
-+
- INIT_LIST_HEAD(&resource_list);
- acpi_dev_get_resources(device, &resource_list,
- acpi_check_serial_bus_slave,
---
-2.28.0
-