[PATCH 4/6] firmware: ti_sci.c: Add a function to request DM metadata using ti_sci* calls
Moteen Shah
m-shah at ti.com
Wed May 28 10:05:17 CEST 2025
Add a function to retrieve information of the DM firmware's ABI versions,
RM/PM HAL, firmware version, etc using TI_SCI protocol.
Signed-off-by: Moteen Shah <m-shah at ti.com>
---
drivers/firmware/ti_sci.c | 54 +++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index bb9738efa81..8a8edc97e85 100644
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -320,6 +320,59 @@ static int ti_sci_cmd_query_dm_cap(struct ti_sci_handle *handle, u64 *fw_caps)
return 0;
}
+/**
+ * ti_sci_cmd_get_dm_version() - command to get the DM version of the SCI
+ * entity
+ * @handle: Pointer to TI SCI handle
+ * @dm_info: Pointer to DM version information structure
+ *
+ * Return: 0 if all went fine, else return appropriate error.
+ */
+
+static int ti_sci_cmd_get_dm_version(struct ti_sci_handle *handle,
+ struct ti_sci_dm_version_info *dm_info)
+{
+ struct ti_sci_msg_dm_resp_version *ver_info;
+ struct ti_sci_msg_hdr hdr;
+ struct ti_sci_info *info;
+ struct ti_sci_xfer *xfer;
+ int ret;
+
+ if (IS_ERR(handle))
+ return PTR_ERR(handle);
+ if (!handle || !dm_info)
+ return -EINVAL;
+
+ info = handle_to_ti_sci_info(handle);
+
+ xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_DM_VERSION,
+ TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
+ (u32 *)&hdr, sizeof(struct ti_sci_msg_hdr),
+ sizeof(*ver_info));
+ if (IS_ERR(xfer)) {
+ ret = PTR_ERR(xfer);
+ return ret;
+ }
+
+ ret = ti_sci_do_xfer(info, xfer);
+ if (ret)
+ return ret;
+
+ ver_info = (struct ti_sci_msg_dm_resp_version *)xfer->tx_message.buf;
+
+ dm_info->abi_major = ver_info->abi_major;
+ dm_info->abi_minor = ver_info->abi_minor;
+ dm_info->dm_ver = ver_info->version;
+ dm_info->patch_ver = ver_info->patch_version;
+ dm_info->sub_ver = ver_info->sub_version;
+ strlcpy(dm_info->sci_server_version, ver_info->sci_server_version,
+ sizeof(ver_info->sci_server_version));
+ strlcpy(dm_info->rm_pm_hal_version, ver_info->rm_pm_hal_version,
+ sizeof(ver_info->rm_pm_hal_version));
+
+ return 0;
+}
+
/**
* ti_sci_cmd_get_revision() - command to get the revision of the SCI entity
* @handle: pointer to TI SCI handle
@@ -2738,6 +2791,7 @@ static void ti_sci_setup_ops(struct ti_sci_info *info)
fwl_ops->get_fwl_region = ti_sci_cmd_get_fwl_region;
fwl_ops->change_fwl_owner = ti_sci_cmd_change_fwl_owner;
+ fw_ops->get_dm_version = ti_sci_cmd_get_dm_version;
fw_ops->query_dm_cap = ti_sci_cmd_query_dm_cap;
}
--
2.34.1
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