Introduce response and request structs to receive and request
information regarding DM version, etc from TI SCI.
Signed-off-by: Moteen Shah <m-s...@ti.com>
---
drivers/firmware/ti_sci.h | 29 ++++++++++++++++++++++++++
include/linux/soc/ti/ti_sci_protocol.h | 26 +++++++++++++++++++++++
2 files changed, 55 insertions(+)
diff --git a/drivers/firmware/ti_sci.h b/drivers/firmware/ti_sci.h
index f3d9eb453b4..6ef77d83114 100644
--- a/drivers/firmware/ti_sci.h
+++ b/drivers/firmware/ti_sci.h
@@ -19,6 +19,7 @@
#define TI_SCI_MSG_ENABLE_WDT 0x0000
#define TI_SCI_MSG_WAKE_RESET 0x0001
#define TI_SCI_MSG_VERSION 0x0002
+#define TI_SCI_MSG_DM_VERSION 0x000F
#define TI_SCI_MSG_WAKE_REASON 0x0003
#define TI_SCI_MSG_GOODBYE 0x0004
#define TI_SCI_MSG_SYS_RESET 0x0005
@@ -135,6 +136,34 @@ struct ti_sci_msg_resp_version {
u8 abi_minor;
} __packed;
+/**
+ * struct ti_sci_msg_dm_resp_version - Response for a message
+ * @hdr: Generic header
+ * @version: Version number of the firmware
+ * @sub_version: Sub-version number of the firmware
+ * @patch_version: Patch version number of the firmware
+ * @abi_major: Major version of the ABI that firmware supports
+ * @abi_minor: Minor version of the ABI that firmware supports
+ * @sci_server_version: String describing the SCI server version
+ * @rm_pm_hal_version: String describing the RM PM HAL version
+ *
+ * In general, ABI version changes follow the rule that minor version
increments
+ * are backward compatible. Major revision changes in ABI may not be
+ * backward compatible.
+ *
+ * Response to a message with message type TI_SCI_MSG_DM_VERSION
+ */
+struct ti_sci_msg_dm_resp_version {
+ struct ti_sci_msg_hdr hdr;
+ u16 version;
+ u8 sub_version;
+ u8 patch_version;
+ u8 abi_major;
+ u8 abi_minor;
+ char rm_pm_hal_version[12];
+ char sci_server_version[26];
+} __packed;
+
/**
* struct ti_sci_query_fw_caps_resp - Response for a message
* @hdr: Generic header
diff --git a/include/linux/soc/ti/ti_sci_protocol.h
b/include/linux/soc/ti/ti_sci_protocol.h
index 05a19a8d86c..3f13a980433 100644
--- a/include/linux/soc/ti/ti_sci_protocol.h
+++ b/include/linux/soc/ti/ti_sci_protocol.h
@@ -30,6 +30,28 @@ struct ti_sci_version_info {
char firmware_description[32];
};
+/**
+ * struct ti_sci_dm_version_info - version information structure
+ * @abi_major: Major ABI version. Change here implies risk of backward
+ * compatibility break.
+ * @abi_minor: Minor ABI version. Change here implies new feature
addition,
+ * or compatible change in ABI.
+ * @patch_ver: Patch version of the firmware.
+ * @sub_ver: Sub-version of the firmware.
+ * @dm_ver: DM version.
+ * @sci_server_version: Version string of the SCI server.
+ * @rm_pm_hal_version: Version string of the RM PM HAL.
+ */
+struct ti_sci_dm_version_info {
+ u8 abi_major;
+ u8 abi_minor;
+ u8 patch_ver;
+ u8 sub_ver;
+ u16 dm_ver;
+ char rm_pm_hal_version[12];
+ char sci_server_version[26];
+};
+
struct ti_sci_handle;
/**
@@ -264,10 +286,14 @@ struct ti_sci_core_ops {
/**
* struct ti_sci_firmware_ops - DM firmware operations
* @query_dm_cap: Query the DM capabilities
+ * @get_dm_version: Get the DM version.
+ * Return 0 for successful query else appropriate error value.
*/
struct ti_sci_firmware_ops {
int (*query_dm_cap)(struct ti_sci_handle *handle,
u64 *dm_cap);
+ int (*get_dm_version)(struct ti_sci_handle *handle,
+ struct ti_sci_dm_version_info *get_dm_version);
};
#define TI_SCI_MSG_FLAG_FW_CAP_DM 0x100
--
2.34.1
