firmware: scmi: install base protocol to SCMI agent

SCMI base protocol is mandatory, and once SCMI node is found in a device
tree, the protocol handle (udevice) is unconditionally installed to
the agent. Then basic information will be retrieved from SCMI server via
the protocol and saved into the agent instance's local storage.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/include/scmi_agent-uclass.h b/include/scmi_agent-uclass.h
index 258aa0f3759..35d96069645 100644
--- a/include/scmi_agent-uclass.h
+++ b/include/scmi_agent-uclass.h
@@ -5,6 +5,7 @@
 #ifndef _SCMI_AGENT_UCLASS_H
 #define _SCMI_AGENT_UCLASS_H
 
+#include <scmi_protocols.h>
 #include <dm/device.h>
 
 struct scmi_msg;
@@ -12,16 +13,81 @@ struct scmi_channel;
 
 /**
  * struct scmi_agent_priv - private data maintained by agent instance
+ * @version:		Version
+ * @num_agents:		Number of agents
+ * @num_protocols:	Number of protocols
+ * @impl_version:	Implementation version
+ * @protocols:		Array of protocol IDs
+ * @vendor:		Vendor name
+ * @sub_vendor:		Sub-vendor name
+ * @agent_name:		Agent name
+ * @agent_id:		Identifier of agent
+ * @base_dev:		SCMI base protocol device
  * @clock_dev:		SCMI clock protocol device
  * @resetdom_dev:	SCMI reset domain protocol device
  * @voltagedom_dev:	SCMI voltage domain protocol device
  */
 struct scmi_agent_priv {
+	u32 version;
+	u32 num_agents;
+	u32 num_protocols;
+	u32 impl_version;
+	u8 *protocols;
+	u8 *vendor;
+	u8 *sub_vendor;
+	u8 *agent_name;
+	u32 agent_id;
+	struct udevice *base_dev;
 	struct udevice *clock_dev;
 	struct udevice *resetdom_dev;
 	struct udevice *voltagedom_dev;
 };
 
+static inline u32 scmi_version(struct udevice *dev)
+{
+	return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->version;
+}
+
+static inline u32 scmi_num_agents(struct udevice *dev)
+{
+	return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->num_agents;
+}
+
+static inline u32 scmi_num_protocols(struct udevice *dev)
+{
+	return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->num_protocols;
+}
+
+static inline u32 scmi_impl_version(struct udevice *dev)
+{
+	return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->impl_version;
+}
+
+static inline u8 *scmi_protocols(struct udevice *dev)
+{
+	return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->protocols;
+}
+
+static inline u8 *scmi_vendor(struct udevice *dev)
+{
+	return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->vendor;
+}
+
+static inline u8 *scmi_sub_vendor(struct udevice *dev)
+{
+	return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->sub_vendor;
+}
+
+static inline u8 *scmi_agent_name(struct udevice *dev)
+{
+	return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->agent_name;
+}
+
+static inline u32 scmi_agent_id(struct udevice *dev)
+{
+	return ((struct scmi_agent_priv *)dev_get_uclass_plat(dev))->agent_id;
+}
+
 /**
  * struct scmi_transport_ops - The functions that a SCMI transport layer must implement.
  */