Merge branch 'acpi-uid'

Merge ACPI _UID handling unification changes for 6.1-rc1:

 - Introduce acpi_dev_uid_to_integer() to convert a _UID string into an
   integer value (Andy Shevchenko).

 - Use acpi_dev_uid_to_integer() in several places to unify _UID
   handling (Andy Shevchenko).

* acpi-uid:
  efi/dev-path-parser: Refactor _UID handling to use acpi_dev_uid_to_integer()
  spi: pxa2xx: Refactor _UID handling to use acpi_dev_uid_to_integer()
  perf: qcom_l2_pmu: Refactor _UID handling to use acpi_dev_uid_to_integer()
  i2c: mlxbf: Refactor _UID handling to use acpi_dev_uid_to_integer()
  i2c: amd-mp2-plat: Refactor _UID handling to use acpi_dev_uid_to_integer()
  ACPI: x86: Refactor _UID handling to use acpi_dev_uid_to_integer()
  ACPI: LPSS: Refactor _UID handling to use acpi_dev_uid_to_integer()
  ACPI: utils: Add acpi_dev_uid_to_integer() helper to get _UID as integer

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 4acd6f7d1395..2ea14648a661 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -794,6 +794,30 @@ bool acpi_dev_hid_uid_match(struct acpi_device *adev,
 EXPORT_SYMBOL(acpi_dev_hid_uid_match);
 
 /**
+ * acpi_dev_uid_to_integer - treat ACPI device _UID as integer
+ * @adev: ACPI device to get _UID from
+ * @integer: output buffer for integer
+ *
+ * Considers _UID as integer and converts it to @integer.
+ *
+ * Returns 0 on success, or negative error code otherwise.
+ */
+int acpi_dev_uid_to_integer(struct acpi_device *adev, u64 *integer)
+{
+	const char *uid;
+
+	if (!adev)
+		return -ENODEV;
+
+	uid = acpi_device_uid(adev);
+	if (!uid)
+		return -ENODATA;
+
+	return kstrtou64(uid, 0, integer);
+}
+EXPORT_SYMBOL(acpi_dev_uid_to_integer);
+
+/**
  * acpi_dev_found - Detect presence of a given ACPI device in the namespace.
  * @hid: Hardware ID of the device.
  *