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-rw-r--r--drivers/acpi/acpi_apd.c1
-rw-r--r--drivers/acpi/property.c1
-rw-r--r--drivers/acpi/resource.c14
-rw-r--r--drivers/acpi/utils.c2
4 files changed, 16 insertions, 2 deletions
diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index d0aad06b3872..f245bf35bedb 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -145,6 +145,7 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
{ "AMD0010", APD_ADDR(cz_i2c_desc) },
{ "AMDI0010", APD_ADDR(cz_i2c_desc) },
{ "AMD0020", APD_ADDR(cz_uart_desc) },
+ { "AMDI0020", APD_ADDR(cz_uart_desc) },
{ "AMD0030", },
#endif
#ifdef CONFIG_ARM64
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 2aee41655ce9..f2fd3fee588a 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -816,6 +816,7 @@ struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
next = adev->node.next;
if (next == head) {
child = NULL;
+ adev = ACPI_COMPANION(dev);
goto nondev;
}
adev = list_entry(next, struct acpi_device, node);
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index d02fd53042a5..56241eb341f4 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -27,8 +27,20 @@
#ifdef CONFIG_X86
#define valid_IRQ(i) (((i) != 0) && ((i) != 2))
+static inline bool acpi_iospace_resource_valid(struct resource *res)
+{
+ /* On X86 IO space is limited to the [0 - 64K] IO port range */
+ return res->end < 0x10003;
+}
#else
#define valid_IRQ(i) (true)
+/*
+ * ACPI IO descriptors on arches other than X86 contain MMIO CPU physical
+ * addresses mapping IO space in CPU physical address space, IO space
+ * resources can be placed anywhere in the 64-bit physical address space.
+ */
+static inline bool
+acpi_iospace_resource_valid(struct resource *res) { return true; }
#endif
static bool acpi_dev_resource_len_valid(u64 start, u64 end, u64 len, bool io)
@@ -127,7 +139,7 @@ static void acpi_dev_ioresource_flags(struct resource *res, u64 len,
if (!acpi_dev_resource_len_valid(res->start, res->end, len, true))
res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET;
- if (res->end >= 0x10003)
+ if (!acpi_iospace_resource_valid(res))
res->flags |= IORESOURCE_DISABLED | IORESOURCE_UNSET;
if (io_decode == ACPI_DECODE_16)
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index f12a72428aac..050673f0c0b3 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -692,7 +692,7 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs)
mask = obj->integer.value;
else if (obj->type == ACPI_TYPE_BUFFER)
for (i = 0; i < obj->buffer.length && i < 8; i++)
- mask |= (((u8)obj->buffer.pointer[i]) << (i * 8));
+ mask |= (((u64)obj->buffer.pointer[i]) << (i * 8));
ACPI_FREE(obj);
/*