The brcmfmac driver now uses the ACPI_COMPANION() macro which was
introduced in v3.13 kernel. This provides a backport of that macro
for older kernels.
Signed-off-by: Arend van Spriel <arend@xxxxxxxxxxxx>
---
Not sure if this correctly does conversion from ACPI handle to acpi_device.
Regards,
Arend
---
backport/backport-include/linux/acpi.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/backport/backport-include/linux/acpi.h b/backport/backport-include/linux/acpi.h
index 506df15..ff55d76 100644
--- a/backport/backport-include/linux/acpi.h
+++ b/backport/backport-include/linux/acpi.h
@@ -36,4 +36,22 @@
#endif /* CONFIG_ACPI */
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0) */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
+#ifdef CONFIG_ACPI
+static inline struct acpi_device *_acpi_get_companion(struct device *dev)
+{
+ struct acpi_device *adev;
+ int ret;
+
+ ret = acpi_bus_get_device(ACPI_HANDLE(dev), &adev);
+ if (ret < 0)
+ adev = NULL;
+
+ return adev;
+}
+#define ACPI_COMPANION(dev) _acpi_get_companion(dev)
+#else
+#define ACPI_COMPANION(dev) (NULL)
+#endif /* CONFIG_ACPI */
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0) */
#endif /* __BACKPORT_LINUX_ACPI_H */
--
1.9.1
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