[PATCH v3 03/13] firmware: scmi: move scmi_bind_protocols() backward
AKASHI Takahiro
takahiro.akashi at linaro.org
Fri Sep 8 04:51:28 CEST 2023
Move the location of scmi_bind_protocols() backward for changes
in later patches.
There is no change in functionality.
Signed-off-by: AKASHI Takahiro <takahiro.akashi at linaro.org>
Reviewed-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Etienne Carriere <etienne.carriere at foss.st.com>
---
drivers/firmware/scmi/scmi_agent-uclass.c | 59 +++++++++++++++++++++++
1 file changed, 59 insertions(+)
diff --git a/drivers/firmware/scmi/scmi_agent-uclass.c b/drivers/firmware/scmi/scmi_agent-uclass.c
index feb31809e715..94e54eeb066b 100644
--- a/drivers/firmware/scmi/scmi_agent-uclass.c
+++ b/drivers/firmware/scmi/scmi_agent-uclass.c
@@ -157,6 +157,65 @@ int devm_scmi_process_msg(struct udevice *dev, struct scmi_msg *msg)
return scmi_process_msg(protocol->parent, priv->channel, msg);
}
+/*
+ * SCMI agent devices binds devices of various uclasses depeding on
+ * the FDT description. scmi_bind_protocol() is a generic bind sequence
+ * called by the uclass at bind stage, that is uclass post_bind.
+ */
+static int scmi_bind_protocols(struct udevice *dev)
+{
+ int ret = 0;
+ ofnode node;
+ const char *name;
+
+ dev_for_each_subnode(node, dev) {
+ struct driver *drv = NULL;
+ u32 protocol_id;
+
+ if (!ofnode_is_enabled(node))
+ continue;
+
+ if (ofnode_read_u32(node, "reg", &protocol_id))
+ continue;
+
+ name = ofnode_get_name(node);
+ switch (protocol_id) {
+ case SCMI_PROTOCOL_ID_CLOCK:
+ if (CONFIG_IS_ENABLED(CLK_SCMI))
+ drv = DM_DRIVER_GET(scmi_clock);
+ break;
+ case SCMI_PROTOCOL_ID_RESET_DOMAIN:
+ if (IS_ENABLED(CONFIG_RESET_SCMI))
+ drv = DM_DRIVER_GET(scmi_reset_domain);
+ break;
+ case SCMI_PROTOCOL_ID_VOLTAGE_DOMAIN:
+ if (IS_ENABLED(CONFIG_DM_REGULATOR_SCMI)) {
+ node = ofnode_find_subnode(node, "regulators");
+ if (!ofnode_valid(node)) {
+ dev_err(dev, "no regulators node\n");
+ return -ENXIO;
+ }
+ drv = DM_DRIVER_GET(scmi_voltage_domain);
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (!drv) {
+ dev_dbg(dev, "Ignore unsupported SCMI protocol %#x\n",
+ protocol_id);
+ continue;
+ }
+
+ ret = device_bind(dev, drv, name, NULL, node, NULL);
+ if (ret)
+ break;
+ }
+
+ return ret;
+}
+
UCLASS_DRIVER(scmi_agent) = {
.id = UCLASS_SCMI_AGENT,
.name = "scmi_agent",
--
2.34.1
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