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-rw-r--r--drivers/cdx/controller/mcdi_functions.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/cdx/controller/mcdi_functions.h b/drivers/cdx/controller/mcdi_functions.h
index 7440ace5539a..a448d6581eb4 100644
--- a/drivers/cdx/controller/mcdi_functions.h
+++ b/drivers/cdx/controller/mcdi_functions.h
@@ -58,4 +58,17 @@ int cdx_mcdi_get_dev_config(struct cdx_mcdi *cdx,
int cdx_mcdi_reset_device(struct cdx_mcdi *cdx,
u8 bus_num, u8 dev_num);
+/**
+ * cdx_mcdi_bus_master_enable - Set/Reset bus mastering for cdx device
+ * represented by bus_num:dev_num
+ * @cdx: pointer to MCDI interface.
+ * @bus_num: Bus number.
+ * @dev_num: Device number.
+ * @enable: Enable bus mastering if set, disable otherwise.
+ *
+ * Return: 0 on success, <0 on failure
+ */
+int cdx_mcdi_bus_master_enable(struct cdx_mcdi *cdx, u8 bus_num,
+ u8 dev_num, bool enable);
+
#endif /* CDX_MCDI_FUNCTIONS_H */