diff options
| author | Etienne Carriere <etienne.carriere@linaro.org> | 2022-02-21 09:22:42 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-03-02 17:42:06 -0500 |
| commit | 7c33f78983c344c46d46d857fd1d5e2b5b95ad40 (patch) | |
| tree | b4a584688949e49d22e1daac341666c93b720d87 /drivers/firmware | |
| parent | 10d3e5d20b284025cb6a734fcc7e1c8231ff56b6 (diff) | |
| download | u-boot-7c33f78983c344c46d46d857fd1d5e2b5b95ad40.zip u-boot-7c33f78983c344c46d46d857fd1d5e2b5b95ad40.tar.gz u-boot-7c33f78983c344c46d46d857fd1d5e2b5b95ad40.tar.bz2 | |
clk: scmi: register scmi clocks with CCFWIP/2022-03-02-scmi-updates
Implements SCMI APIs to retrieve the number exposed SCMI clocks using
SCMI_PROTOCOL_ATTRIBUTES messages and the names of the clocks using
SCMI_CLOCK_ATTRIBUTES messages.
This change updates sandbox SCMI clock test driver to manage these
2 new message IDs.
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Clement Leger <clement.leger@bootlin.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/scmi/sandbox-scmi_agent.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/firmware/scmi/sandbox-scmi_agent.c b/drivers/firmware/scmi/sandbox-scmi_agent.c index fc717a8..c555164 100644 --- a/drivers/firmware/scmi/sandbox-scmi_agent.c +++ b/drivers/firmware/scmi/sandbox-scmi_agent.c @@ -114,6 +114,55 @@ static struct sandbox_scmi_voltd *get_scmi_voltd_state(uint domain_id) * Sandbox SCMI agent ops */ +static int sandbox_scmi_clock_protocol_attribs(struct udevice *dev, + struct scmi_msg *msg) +{ + struct scmi_clk_protocol_attr_out *out = NULL; + + if (!msg->out_msg || msg->out_msg_sz < sizeof(*out)) + return -EINVAL; + + out = (struct scmi_clk_protocol_attr_out *)msg->out_msg; + out->attributes = ARRAY_SIZE(scmi_clk); + out->status = SCMI_SUCCESS; + + return 0; +} + +static int sandbox_scmi_clock_attribs(struct udevice *dev, struct scmi_msg *msg) +{ + struct scmi_clk_attribute_in *in = NULL; + struct scmi_clk_attribute_out *out = NULL; + struct sandbox_scmi_clk *clk_state = NULL; + int ret; + + if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) || + !msg->out_msg || msg->out_msg_sz < sizeof(*out)) + return -EINVAL; + + in = (struct scmi_clk_attribute_in *)msg->in_msg; + out = (struct scmi_clk_attribute_out *)msg->out_msg; + + clk_state = get_scmi_clk_state(in->clock_id); + if (!clk_state) { + dev_err(dev, "Unexpected clock ID %u\n", in->clock_id); + + out->status = SCMI_NOT_FOUND; + } else { + memset(out, 0, sizeof(*out)); + + if (clk_state->enabled) + out->attributes = 1; + + ret = snprintf(out->clock_name, sizeof(out->clock_name), + "clk%u", in->clock_id); + assert(ret > 0 && ret < sizeof(out->clock_name)); + + out->status = SCMI_SUCCESS; + } + + return 0; +} static int sandbox_scmi_clock_rate_set(struct udevice *dev, struct scmi_msg *msg) { @@ -427,6 +476,10 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev, switch (msg->protocol_id) { case SCMI_PROTOCOL_ID_CLOCK: switch (msg->message_id) { + case SCMI_PROTOCOL_ATTRIBUTES: + return sandbox_scmi_clock_protocol_attribs(dev, msg); + case SCMI_CLOCK_ATTRIBUTES: + return sandbox_scmi_clock_attribs(dev, msg); case SCMI_CLOCK_RATE_SET: return sandbox_scmi_clock_rate_set(dev, msg); case SCMI_CLOCK_RATE_GET: |