diff options
| author | Cristian Marussi <cristian.marussi@arm.com> | 2026-05-08 18:33:00 +0300 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@kernel.org> | 2026-05-12 17:29:12 +0300 |
| commit | d2488ff1a257342111e1be1348d52e8b4ecfaa36 (patch) | |
| tree | d05b4310533ec2173ef388f7cab773aaa2932412 /include/linux | |
| parent | 4a07036d615976354ac806017f23ea800f1fc489 (diff) | |
| download | linux-d2488ff1a257342111e1be1348d52e8b4ecfaa36.tar.xz | |
firmware: arm_scmi: Introduce all_rates_get clock operation
Add a clock operation to get the whole set of rates available to a specific
clock: when needed this request could transparently trigger a full rate
discovery enumeration if this specific clock-rates were previously only
lazily enumerated.
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://patch.msgid.link/20260508153300.2224715-16-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/scmi_protocol.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index 55db9ba8fac3..5ab73b1ab9aa 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -40,6 +40,12 @@ struct scmi_base_info { char sub_vendor_id[SCMI_SHORT_NAME_MAX_SIZE]; }; +struct scmi_clock_rates { + bool rate_discrete; + unsigned int num_rates; + u64 *rates; +}; + struct scmi_clock_info { char name[SCMI_MAX_STR_SIZE]; unsigned int enable_latency; @@ -84,6 +90,7 @@ enum scmi_clock_oem_config { * clock calculating the closest allowed rate. * Note that @rate is an input/output parameter used both to * describe the requested rate and report the closest match + * @all_rates_get: get the list of all available rates for the specified clock. * @enable: enables the specified clock * @disable: disables the specified clock * @state_get: get the status of the specified clock @@ -103,6 +110,8 @@ struct scmi_clk_proto_ops { u64 rate); int (*determine_rate)(const struct scmi_protocol_handle *ph, u32 clk_id, unsigned long *rate); + const struct scmi_clock_rates __must_check *(*all_rates_get) + (const struct scmi_protocol_handle *ph, u32 clk_id); int (*enable)(const struct scmi_protocol_handle *ph, u32 clk_id, bool atomic); int (*disable)(const struct scmi_protocol_handle *ph, u32 clk_id, |