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| author | Cristian Marussi <cristian.marussi@arm.com> | 2022-03-30 18:05:49 +0300 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2022-04-28 20:22:53 +0300 |
| commit | 4c74701b1eb7636eb0cdd66b488b42920105122a (patch) | |
| tree | cb56181c743c3c27e9e546f787270aa22345d3bb /include/linux/scmi_protocol.h | |
| parent | 7aa75496ea1f38dfd99b93c66f8d9bc525d11efc (diff) | |
| download | linux-4c74701b1eb7636eb0cdd66b488b42920105122a.tar.xz | |
firmware: arm_scmi: Add SCMI v3.1 VOLTAGE_LEVEL_SET_COMPLETE
Add SCMI v3.1 voltage protocol support for asynchronous VOLTAGE_LEVEL_SET
command.
Note that, if a voltage domain is advertised to support the asynchronous
version of VOLTAGE_LEVEL_SET, the command will be issued asynchronously
unless explicitly requested to use the synchronous version by setting the
mode to SCMI_VOLTAGE_LEVEL_SET_SYNC when calling voltage_ops->level_set.
The SCMI regulator driver level_set invocation has been left unchanged
so that it will transparently use the asynchronous version if available.
Link: https://lore.kernel.org/r/20220330150551.2573938-21-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'include/linux/scmi_protocol.h')
| -rw-r--r-- | include/linux/scmi_protocol.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index 0e20acc80d50..1c58646ba381 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -495,6 +495,11 @@ struct scmi_reset_proto_ops { int (*deassert)(const struct scmi_protocol_handle *ph, u32 domain); }; +enum scmi_voltage_level_mode { + SCMI_VOLTAGE_LEVEL_SET_AUTO, + SCMI_VOLTAGE_LEVEL_SET_SYNC, +}; + /** * struct scmi_voltage_info - describe one available SCMI Voltage Domain * @@ -507,7 +512,8 @@ struct scmi_reset_proto_ops { * supported voltage level * @negative_volts_allowed: True if any of the entries of @levels_uv represent * a negative voltage. - * @attributes: represents Voltage Domain advertised attributes + * @async_level_set: True when the voltage domain supports asynchronous level + * set commands. * @name: name assigned to the Voltage Domain by platform * @num_levels: number of total entries in @levels_uv. * @levels_uv: array of entries describing the available voltage levels for @@ -517,7 +523,7 @@ struct scmi_voltage_info { unsigned int id; bool segmented; bool negative_volts_allowed; - unsigned int attributes; + bool async_level_set; char name[SCMI_MAX_STR_SIZE]; unsigned int num_levels; #define SCMI_VOLTAGE_SEGMENT_LOW 0 @@ -548,7 +554,7 @@ struct scmi_voltage_proto_ops { int (*config_get)(const struct scmi_protocol_handle *ph, u32 domain_id, u32 *config); int (*level_set)(const struct scmi_protocol_handle *ph, u32 domain_id, - u32 flags, s32 volt_uV); + enum scmi_voltage_level_mode mode, s32 volt_uV); int (*level_get)(const struct scmi_protocol_handle *ph, u32 domain_id, s32 *volt_uV); }; |