firmware: scmi: sandbox test for SCMI clocks
Add tests for SCMI clocks. A test device driver sandbox-scmi_devices.c
is used to get clock resources, allowing further clock manipulation.
Change sandbox-smci_agent to emulate 3 clocks exposed through 2 agents.
Add DM test scmi_clocks to test these 3 clocks.
Update DM test sandbox_scmi_agent with load/remove test sequences
factorized by {load|remove}_sandbox_scmi_test_devices() helper functions.
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 4769ec0..5ed364f 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -371,6 +371,11 @@
compatible = "sandbox,scmi-agent";
#address-cells = <1>;
#size-cells = <0>;
+
+ clk_scmi0: protocol@14 {
+ reg = <0x14>;
+ #clock-cells = <1>;
+ };
};
sandbox-scmi-agent@1 {
@@ -378,6 +383,11 @@
#address-cells = <1>;
#size-cells = <0>;
+ clk_scmi1: protocol@14 {
+ reg = <0x14>;
+ #clock-cells = <1>;
+ };
+
protocol@10 {
reg = <0x10>;
};
@@ -1069,6 +1079,11 @@
compatible = "sandbox,virtio2";
};
+ sandbox_scmi {
+ compatible = "sandbox,scmi-devices";
+ clocks = <&clk_scmi0 7>, <&clk_scmi0 3>, <&clk_scmi1 1>;
+ };
+
pinctrl {
compatible = "sandbox,pinctrl";
diff --git a/arch/sandbox/include/asm/scmi_test.h b/arch/sandbox/include/asm/scmi_test.h
index a811fe1..63093fd 100644
--- a/arch/sandbox/include/asm/scmi_test.h
+++ b/arch/sandbox/include/asm/scmi_test.h
@@ -11,11 +11,27 @@
struct sandbox_scmi_service;
/**
+ * struct sandbox_scmi_clk - Simulated clock exposed by SCMI
+ * @id: Identifier of the clock used in the SCMI protocol
+ * @enabled: Clock state: true if enabled, false if disabled
+ * @rate: Clock rate in Hertz
+ */
+struct sandbox_scmi_clk {
+ uint id;
+ bool enabled;
+ ulong rate;
+};
+
+/**
* struct sandbox_scmi_agent - Simulated SCMI service seen by SCMI agent
* @idx: Identifier for the SCMI agent, its index
+ * @clk: Simulated clocks
+ * @clk_count: Simulated clocks array size
*/
struct sandbox_scmi_agent {
uint idx;
+ struct sandbox_scmi_clk *clk;
+ size_t clk_count;
};
/**
@@ -28,16 +44,39 @@
size_t agent_count;
};
+/**
+ * struct sandbox_scmi_devices - Reference to devices probed through SCMI
+ * @clk: Array the clock devices
+ * @clk_count: Number of clock devices probed
+ */
+struct sandbox_scmi_devices {
+ struct clk *clk;
+ size_t clk_count;
+};
+
#ifdef CONFIG_SCMI_FIRMWARE
/**
* sandbox_scmi_service_context - Get the simulated SCMI services context
* @return: Reference to backend simulated resources state
*/
struct sandbox_scmi_service *sandbox_scmi_service_ctx(void);
+
+/**
+ * sandbox_scmi_devices_get_ref - Get references to devices accessed through SCMI
+ * @dev: Reference to the test device used get test resources
+ * @return: Reference to the devices probed by the SCMI test
+ */
+struct sandbox_scmi_devices *sandbox_scmi_devices_ctx(struct udevice *dev);
#else
static inline struct sandbox_scmi_service *sandbox_scmi_service_ctx(void)
{
return NULL;
}
+
+static inline
+struct sandbox_scmi_devices *sandbox_scmi_devices_ctx(struct udevice *dev)
+{
+ return NULL;
+}
#endif /* CONFIG_SCMI_FIRMWARE */
#endif /* __SANDBOX_SCMI_TEST_H */