firmware: scmi: sandbox test for voltage regulator
Implement sandbox regulator devices for SCMI voltage domains and test them in DM scmi tests. Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Etienne Carriere
Tom Rini
parent
1f213ee4db
commit
0124218b8b
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@ -497,6 +497,27 @@
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reg = <0x16>;
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#reset-cells = <1>;
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};
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protocol@17 {
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reg = <0x17>;
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regulators {
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#address-cells = <1>;
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#size-cells = <0>;
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regul0_scmi0: reg@0 {
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reg = <0>;
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regulator-name = "sandbox-voltd0";
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regulator-min-microvolt = <1100000>;
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regulator-max-microvolt = <3300000>;
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};
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regul1_scmi0: reg@1 {
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reg = <0x1>;
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regulator-name = "sandbox-voltd1";
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regulator-min-microvolt = <1800000>;
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};
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};
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};
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};
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sandbox-scmi-agent@1 {
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@ -1264,6 +1285,8 @@
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compatible = "sandbox,scmi-devices";
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clocks = <&clk_scmi0 7>, <&clk_scmi0 3>, <&clk_scmi1 1>;
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resets = <&reset_scmi0 3>;
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regul0-supply = <®ul0_scmi0>;
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regul1-supply = <®ul1_scmi0>;
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};
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pinctrl {
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@ -31,6 +31,18 @@ struct sandbox_scmi_reset {
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bool asserted;
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};
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/**
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* struct sandbox_scmi_voltd - Simulated voltage regulator exposed by SCMI
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* @id: Identifier of the voltage domain used in the SCMI protocol
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* @enabled: Regulator state: true if on, false if off
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* @voltage_uv: Regulator current voltage in microvoltd (uV)
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*/
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struct sandbox_scmi_voltd {
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uint id;
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bool enabled;
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int voltage_uv;
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};
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/**
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* struct sandbox_scmi_agent - Simulated SCMI service seen by SCMI agent
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* @idx: Identifier for the SCMI agent, its index
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@ -38,6 +50,8 @@ struct sandbox_scmi_reset {
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* @clk_count: Simulated clocks array size
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* @clk: Simulated reset domains
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* @clk_count: Simulated reset domains array size
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* @voltd: Simulated voltage domains (regulators)
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* @voltd_count: Simulated voltage domains array size
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*/
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struct sandbox_scmi_agent {
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uint idx;
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@ -45,6 +59,8 @@ struct sandbox_scmi_agent {
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size_t clk_count;
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struct sandbox_scmi_reset *reset;
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size_t reset_count;
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struct sandbox_scmi_voltd *voltd;
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size_t voltd_count;
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};
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/**
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@ -63,12 +79,16 @@ struct sandbox_scmi_service {
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* @clk_count: Number of clock devices probed
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* @reset: Array the reset controller devices
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* @reset_count: Number of reset controller devices probed
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* @regul: Array regulator devices
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* @regul_count: Number of regulator devices probed
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*/
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struct sandbox_scmi_devices {
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struct clk *clk;
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size_t clk_count;
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struct reset_ctl *reset;
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size_t reset_count;
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struct udevice **regul;
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size_t regul_count;
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};
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#ifdef CONFIG_SCMI_FIRMWARE
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@ -219,6 +219,7 @@ CONFIG_DM_REGULATOR_FIXED=y
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CONFIG_REGULATOR_RK8XX=y
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CONFIG_REGULATOR_S5M8767=y
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CONFIG_DM_REGULATOR_SANDBOX=y
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CONFIG_DM_REGULATOR_SCMI=y
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CONFIG_REGULATOR_TPS65090=y
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CONFIG_DM_PWM=y
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CONFIG_PWM_SANDBOX=y
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@ -21,14 +21,15 @@
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* SCMI protocols embedded in U-Boot. Currently:
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* - SCMI clock protocol: emulate 2 agents each exposing few clocks
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* - SCMI reset protocol: emulate 1 agents each exposing a reset
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* - SCMI voltage domain protocol: emulate 1 agent exposing 2 regulators
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*
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* Agent #0 simulates 2 clocks and 1 reset domain.
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* Agent #0 simulates 2 clocks, 1 reset domain and 1 voltage domain.
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* See IDs in scmi0_clk[]/scmi0_reset[] and "sandbox-scmi-agent@0" in test.dts.
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*
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* Agent #1 simulates 1 clock.
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* See IDs in scmi1_clk[] and "sandbox-scmi-agent@1" in test.dts.
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*
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* All clocks are default disabled and reset levels down.
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* All clocks and regulators are default disabled and reset controller down.
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*
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* This Driver exports sandbox_scmi_service_ct() for the test sequence to
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* get the state of the simulated services (clock state, rate, ...) and
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@ -47,6 +48,11 @@ static struct sandbox_scmi_reset scmi0_reset[] = {
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{ .id = 3 },
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};
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static struct sandbox_scmi_voltd scmi0_voltd[] = {
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{ .id = 0, .voltage_uv = 3300000 },
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{ .id = 1, .voltage_uv = 1800000 },
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};
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static struct sandbox_scmi_clk scmi1_clk[] = {
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{ .id = 1, .rate = 44 },
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};
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@ -83,6 +89,13 @@ static void debug_print_agent_state(struct udevice *dev, char *str)
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agent->reset_count,
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agent->reset_count ? agent->reset[0].asserted : -1,
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agent->reset_count > 1 ? agent->reset[1].asserted : -1);
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dev_dbg(dev, " scmi%u_voltd (%zu): %u/%d, %u/%d, ...\n",
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agent->idx,
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agent->voltd_count,
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agent->voltd_count ? agent->voltd[0].enabled : -1,
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agent->voltd_count ? agent->voltd[0].voltage_uv : -1,
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agent->voltd_count ? agent->voltd[1].enabled : -1,
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agent->voltd_count ? agent->voltd[1].voltage_uv : -1);
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};
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static struct sandbox_scmi_clk *get_scmi_clk_state(uint agent_id, uint clock_id)
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@ -125,6 +138,20 @@ static struct sandbox_scmi_reset *get_scmi_reset_state(uint agent_id,
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return NULL;
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}
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static struct sandbox_scmi_voltd *get_scmi_voltd_state(uint agent_id,
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uint domain_id)
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{
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size_t n;
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if (agent_id == 0) {
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for (n = 0; n < ARRAY_SIZE(scmi0_voltd); n++)
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if (scmi0_voltd[n].id == domain_id)
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return scmi0_voltd + n;
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}
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return NULL;
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}
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/*
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* Sandbox SCMI agent ops
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*/
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@ -292,6 +319,160 @@ static int sandbox_scmi_rd_reset(struct udevice *dev, struct scmi_msg *msg)
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return 0;
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}
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static int sandbox_scmi_voltd_attribs(struct udevice *dev, struct scmi_msg *msg)
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{
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struct sandbox_scmi_agent *agent = dev_get_priv(dev);
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struct scmi_voltd_attr_in *in = NULL;
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struct scmi_voltd_attr_out *out = NULL;
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struct sandbox_scmi_voltd *voltd_state = NULL;
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if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
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!msg->out_msg || msg->out_msg_sz < sizeof(*out))
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return -EINVAL;
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in = (struct scmi_voltd_attr_in *)msg->in_msg;
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out = (struct scmi_voltd_attr_out *)msg->out_msg;
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voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
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if (!voltd_state) {
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dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
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out->status = SCMI_NOT_FOUND;
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} else {
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memset(out, 0, sizeof(*out));
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snprintf(out->name, sizeof(out->name), "regu%u", in->domain_id);
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out->status = SCMI_SUCCESS;
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}
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return 0;
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}
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static int sandbox_scmi_voltd_config_set(struct udevice *dev,
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struct scmi_msg *msg)
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{
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struct sandbox_scmi_agent *agent = dev_get_priv(dev);
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struct scmi_voltd_config_set_in *in = NULL;
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struct scmi_voltd_config_set_out *out = NULL;
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struct sandbox_scmi_voltd *voltd_state = NULL;
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if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
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!msg->out_msg || msg->out_msg_sz < sizeof(*out))
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return -EINVAL;
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in = (struct scmi_voltd_config_set_in *)msg->in_msg;
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out = (struct scmi_voltd_config_set_out *)msg->out_msg;
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voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
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if (!voltd_state) {
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dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
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out->status = SCMI_NOT_FOUND;
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} else if (in->config & ~SCMI_VOLTD_CONFIG_MASK) {
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dev_err(dev, "Invalid config value 0x%x\n", in->config);
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out->status = SCMI_INVALID_PARAMETERS;
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} else if (in->config != SCMI_VOLTD_CONFIG_ON &&
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in->config != SCMI_VOLTD_CONFIG_OFF) {
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dev_err(dev, "Unexpected custom value 0x%x\n", in->config);
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out->status = SCMI_INVALID_PARAMETERS;
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} else {
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voltd_state->enabled = in->config == SCMI_VOLTD_CONFIG_ON;
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out->status = SCMI_SUCCESS;
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}
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return 0;
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}
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static int sandbox_scmi_voltd_config_get(struct udevice *dev,
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struct scmi_msg *msg)
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{
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struct sandbox_scmi_agent *agent = dev_get_priv(dev);
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struct scmi_voltd_config_get_in *in = NULL;
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struct scmi_voltd_config_get_out *out = NULL;
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struct sandbox_scmi_voltd *voltd_state = NULL;
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if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
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!msg->out_msg || msg->out_msg_sz < sizeof(*out))
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return -EINVAL;
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in = (struct scmi_voltd_config_get_in *)msg->in_msg;
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out = (struct scmi_voltd_config_get_out *)msg->out_msg;
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voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
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if (!voltd_state) {
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dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
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out->status = SCMI_NOT_FOUND;
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} else {
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if (voltd_state->enabled)
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out->config = SCMI_VOLTD_CONFIG_ON;
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else
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out->config = SCMI_VOLTD_CONFIG_OFF;
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out->status = SCMI_SUCCESS;
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}
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return 0;
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}
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static int sandbox_scmi_voltd_level_set(struct udevice *dev,
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struct scmi_msg *msg)
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{
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struct sandbox_scmi_agent *agent = dev_get_priv(dev);
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struct scmi_voltd_level_set_in *in = NULL;
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struct scmi_voltd_level_set_out *out = NULL;
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struct sandbox_scmi_voltd *voltd_state = NULL;
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if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
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!msg->out_msg || msg->out_msg_sz < sizeof(*out))
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return -EINVAL;
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in = (struct scmi_voltd_level_set_in *)msg->in_msg;
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out = (struct scmi_voltd_level_set_out *)msg->out_msg;
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voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
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if (!voltd_state) {
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dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
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out->status = SCMI_NOT_FOUND;
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} else {
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voltd_state->voltage_uv = in->voltage_level;
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out->status = SCMI_SUCCESS;
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}
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return 0;
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}
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static int sandbox_scmi_voltd_level_get(struct udevice *dev,
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struct scmi_msg *msg)
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{
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struct sandbox_scmi_agent *agent = dev_get_priv(dev);
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struct scmi_voltd_level_get_in *in = NULL;
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struct scmi_voltd_level_get_out *out = NULL;
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struct sandbox_scmi_voltd *voltd_state = NULL;
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if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
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!msg->out_msg || msg->out_msg_sz < sizeof(*out))
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return -EINVAL;
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in = (struct scmi_voltd_level_get_in *)msg->in_msg;
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out = (struct scmi_voltd_level_get_out *)msg->out_msg;
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voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
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if (!voltd_state) {
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dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
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out->status = SCMI_NOT_FOUND;
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} else {
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out->voltage_level = voltd_state->voltage_uv;
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out->status = SCMI_SUCCESS;
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}
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return 0;
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}
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static int sandbox_scmi_test_process_msg(struct udevice *dev,
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struct scmi_msg *msg)
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{
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@ -318,6 +499,22 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev,
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break;
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}
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break;
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case SCMI_PROTOCOL_ID_VOLTAGE_DOMAIN:
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switch (msg->message_id) {
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case SCMI_VOLTAGE_DOMAIN_ATTRIBUTES:
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return sandbox_scmi_voltd_attribs(dev, msg);
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case SCMI_VOLTAGE_DOMAIN_CONFIG_SET:
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return sandbox_scmi_voltd_config_set(dev, msg);
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case SCMI_VOLTAGE_DOMAIN_CONFIG_GET:
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return sandbox_scmi_voltd_config_get(dev, msg);
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case SCMI_VOLTAGE_DOMAIN_LEVEL_SET:
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return sandbox_scmi_voltd_level_set(dev, msg);
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case SCMI_VOLTAGE_DOMAIN_LEVEL_GET:
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return sandbox_scmi_voltd_level_get(dev, msg);
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default:
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break;
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}
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break;
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case SCMI_PROTOCOL_ID_BASE:
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case SCMI_PROTOCOL_ID_POWER_DOMAIN:
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case SCMI_PROTOCOL_ID_SYSTEM:
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@ -369,6 +566,8 @@ static int sandbox_scmi_test_probe(struct udevice *dev)
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.clk_count = ARRAY_SIZE(scmi0_clk),
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.reset = scmi0_reset,
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.reset_count = ARRAY_SIZE(scmi0_reset),
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.voltd = scmi0_voltd,
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.voltd_count = ARRAY_SIZE(scmi0_voltd),
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};
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break;
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case '1':
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@ -1,6 +1,6 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2020, Linaro Limited
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* Copyright (C) 2020-2021, Linaro Limited
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*/
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#define LOG_CATEGORY UCLASS_MISC
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@ -8,11 +8,13 @@
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#include <common.h>
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#include <clk.h>
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#include <dm.h>
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#include <log.h>
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#include <malloc.h>
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#include <reset.h>
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#include <asm/io.h>
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#include <asm/scmi_test.h>
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#include <dm/device_compat.h>
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#include <power/regulator.h>
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/*
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* Simulate to some extent a SCMI exchange.
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@ -23,16 +25,19 @@
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#define SCMI_TEST_DEVICES_CLK_COUNT 3
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#define SCMI_TEST_DEVICES_RD_COUNT 1
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#define SCMI_TEST_DEVICES_VOLTD_COUNT 2
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/*
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* struct sandbox_scmi_device_priv - Storage for device handles used by test
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* @clk: Array of clock instances used by tests
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* @reset_clt: Array of the reset controller instances used by tests
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* @regulators: Array of regulator device references used by the tests
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* @devices: Resources exposed by sandbox_scmi_devices_ctx()
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*/
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struct sandbox_scmi_device_priv {
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struct clk clk[SCMI_TEST_DEVICES_CLK_COUNT];
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struct reset_ctl reset_ctl[SCMI_TEST_DEVICES_RD_COUNT];
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struct udevice *regulators[SCMI_TEST_DEVICES_VOLTD_COUNT];
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struct sandbox_scmi_devices devices;
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};
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@ -76,6 +81,8 @@ static int sandbox_scmi_devices_probe(struct udevice *dev)
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.clk_count = SCMI_TEST_DEVICES_CLK_COUNT,
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.reset = priv->reset_ctl,
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.reset_count = SCMI_TEST_DEVICES_RD_COUNT,
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.regul = priv->regulators,
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.regul_count = SCMI_TEST_DEVICES_VOLTD_COUNT,
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};
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for (n = 0; n < SCMI_TEST_DEVICES_CLK_COUNT; n++) {
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@ -94,8 +101,24 @@ static int sandbox_scmi_devices_probe(struct udevice *dev)
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}
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}
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for (n = 0; n < SCMI_TEST_DEVICES_VOLTD_COUNT; n++) {
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char name[32];
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ret = snprintf(name, sizeof(name), "regul%zu-supply", n);
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assert(ret >= 0 && ret < sizeof(name));
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||||
ret = device_get_supply_regulator(dev, name,
|
||||
priv->devices.regul + n);
|
||||
if (ret) {
|
||||
dev_err(dev, "%s: Failed on voltd %zu\n", __func__, n);
|
||||
goto err_regul;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err_regul:
|
||||
n = SCMI_TEST_DEVICES_RD_COUNT;
|
||||
err_reset:
|
||||
for (; n > 0; n--)
|
||||
reset_free(priv->devices.reset + n - 1);
|
||||
|
|
|
|||
|
|
@ -20,6 +20,7 @@
|
|||
#include <dm/device-internal.h>
|
||||
#include <dm/test.h>
|
||||
#include <linux/kconfig.h>
|
||||
#include <power/regulator.h>
|
||||
#include <test/ut.h>
|
||||
|
||||
static int ut_assert_scmi_state_preprobe(struct unit_test_state *uts)
|
||||
|
|
@ -47,6 +48,7 @@ static int ut_assert_scmi_state_postprobe(struct unit_test_state *uts,
|
|||
ut_asserteq(3, scmi_devices->clk_count);
|
||||
if (IS_ENABLED(CONFIG_RESET_SCMI))
|
||||
ut_asserteq(1, scmi_devices->reset_count);
|
||||
ut_asserteq(2, scmi_devices->regul_count);
|
||||
|
||||
/* State of the simulated SCMI server exposed */
|
||||
scmi_ctx = sandbox_scmi_service_ctx();
|
||||
|
|
@ -58,6 +60,8 @@ static int ut_assert_scmi_state_postprobe(struct unit_test_state *uts,
|
|||
ut_assertnonnull(scmi_ctx->agent[0]->clk);
|
||||
ut_asserteq(1, scmi_ctx->agent[0]->reset_count);
|
||||
ut_assertnonnull(scmi_ctx->agent[0]->reset);
|
||||
ut_asserteq(2, scmi_ctx->agent[0]->voltd_count);
|
||||
ut_assertnonnull(scmi_ctx->agent[0]->voltd);
|
||||
|
||||
ut_assertnonnull(scmi_ctx->agent[1]);
|
||||
ut_assertnonnull(scmi_ctx->agent[1]->clk);
|
||||
|
|
@ -201,3 +205,57 @@ static int dm_test_scmi_resets(struct unit_test_state *uts)
|
|||
}
|
||||
|
||||
DM_TEST(dm_test_scmi_resets, UT_TESTF_SCAN_FDT);
|
||||
|
||||
static int dm_test_scmi_voltage_domains(struct unit_test_state *uts)
|
||||
{
|
||||
struct sandbox_scmi_devices *scmi_devices;
|
||||
struct sandbox_scmi_service *scmi_ctx;
|
||||
struct sandbox_scmi_voltd *sandbox_voltd;
|
||||
struct dm_regulator_uclass_plat *uc_pdata;
|
||||
struct udevice *dev;
|
||||
struct udevice *regul_dev;
|
||||
|
||||
ut_assertok(load_sandbox_scmi_test_devices(uts, &dev));
|
||||
|
||||
scmi_devices = sandbox_scmi_devices_ctx(dev);
|
||||
scmi_ctx = sandbox_scmi_service_ctx();
|
||||
|
||||
/* Set/Get an SCMI voltage domain level */
|
||||
sandbox_voltd = &scmi_ctx->agent[0]->voltd[0];
|
||||
regul_dev = scmi_devices->regul[0];
|
||||
ut_assert(regul_dev);
|
||||
|
||||
uc_pdata = dev_get_uclass_plat(regul_dev);
|
||||
ut_assert(uc_pdata);
|
||||
|
||||
ut_assertok(regulator_set_value(regul_dev, uc_pdata->min_uV));
|
||||
ut_asserteq(sandbox_voltd->voltage_uv, uc_pdata->min_uV);
|
||||
|
||||
ut_assert(regulator_get_value(regul_dev) == uc_pdata->min_uV);
|
||||
|
||||
ut_assertok(regulator_set_value(regul_dev, uc_pdata->max_uV));
|
||||
ut_asserteq(sandbox_voltd->voltage_uv, uc_pdata->max_uV);
|
||||
|
||||
ut_assert(regulator_get_value(regul_dev) == uc_pdata->max_uV);
|
||||
|
||||
/* Enable/disable SCMI voltage domains */
|
||||
ut_assertok(regulator_set_enable(scmi_devices->regul[0], false));
|
||||
ut_assertok(regulator_set_enable(scmi_devices->regul[1], false));
|
||||
ut_assert(!scmi_ctx->agent[0]->voltd[0].enabled);
|
||||
ut_assert(!scmi_ctx->agent[0]->voltd[1].enabled);
|
||||
|
||||
ut_assertok(regulator_set_enable(scmi_devices->regul[0], true));
|
||||
ut_assert(scmi_ctx->agent[0]->voltd[0].enabled);
|
||||
ut_assert(!scmi_ctx->agent[0]->voltd[1].enabled);
|
||||
|
||||
ut_assertok(regulator_set_enable(scmi_devices->regul[1], true));
|
||||
ut_assert(scmi_ctx->agent[0]->voltd[0].enabled);
|
||||
ut_assert(scmi_ctx->agent[0]->voltd[1].enabled);
|
||||
|
||||
ut_assertok(regulator_set_enable(scmi_devices->regul[0], false));
|
||||
ut_assert(!scmi_ctx->agent[0]->voltd[0].enabled);
|
||||
ut_assert(scmi_ctx->agent[0]->voltd[1].enabled);
|
||||
|
||||
return release_sandbox_scmi_test_devices(uts, dev);
|
||||
}
|
||||
DM_TEST(dm_test_scmi_voltage_domains, UT_TESTF_SCAN_FDT);
|
||||
|
|
|
|||
Loading…
Reference in New Issue