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FROMLIST: firmware: arm_scmi: port Voltage protocol to new protocols interface

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Convert internals of protocol implementation to use protocol handles and
expose a new protocol operations interface for SCMI driver using the new
get/put common operations, while keeping the old handle->voltage_ops still
around to ease transition.

Remove handle->voltage_priv now unused.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>

Bug: 171409184
Link: https://lore.kernel.org/linux-arm-kernel/20210202221555.41167-1-cristian.marussi@arm.com/
Change-Id: I3a0c415891792c46bc94179f063068fe913efe5f
Signed-off-by: Rishabh Bhatnagar <quic_rishabhb@quicinc.com>
This commit is contained in:
Cristian Marussi
2021-02-02 22:15:46 +00:00
committed by Todd Kjos
parent b75183098d
commit b974b071e2
2 changed files with 137 additions and 68 deletions
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24
include/linux/scmi_protocol.h
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@@ -515,7 +515,7 @@ struct scmi_voltage_info {
};
/**
* struct scmi_voltage_ops - represents the various operations provided
* struct scmi_voltage_proto_ops - represents the various operations provided
* by SCMI Voltage Protocol
*
* @num_domains_get: get the count of voltage domains provided by SCMI
@@ -525,14 +525,28 @@ struct scmi_voltage_info {
* @level_set: set the voltage level for the specified domain
* @level_get: get the voltage level of the specified domain
*/
struct scmi_voltage_proto_ops {
int (*num_domains_get)(const struct scmi_protocol_handle *ph);
const struct scmi_voltage_info __must_check *(*info_get)
(const struct scmi_protocol_handle *ph, u32 domain_id);
int (*config_set)(const struct scmi_protocol_handle *ph, u32 domain_id,
u32 config);
#define SCMI_VOLTAGE_ARCH_STATE_OFF 0x0
#define SCMI_VOLTAGE_ARCH_STATE_ON 0x7
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);
int (*level_get)(const struct scmi_protocol_handle *ph, u32 domain_id,
s32 *volt_uV);
};
struct scmi_voltage_ops {
int (*num_domains_get)(const struct scmi_handle *handle);
const struct scmi_voltage_info __must_check *(*info_get)
(const struct scmi_handle *handle, u32 domain_id);
int (*config_set)(const struct scmi_handle *handle, u32 domain_id,
u32 config);
#define SCMI_VOLTAGE_ARCH_STATE_OFF 0x0
#define SCMI_VOLTAGE_ARCH_STATE_ON 0x7
int (*config_get)(const struct scmi_handle *handle, u32 domain_id,
u32 *config);
int (*level_set)(const struct scmi_handle *handle, u32 domain_id,
@@ -613,8 +627,6 @@ struct scmi_notify_ops {
* @devm_put_protocol: devres managed method to release a protocol acquired
* with devm_acquire/get_protocol
* @notify_ops: pointer to set of notifications related operations
* @voltage_priv: pointer to private data structure specific to voltage
* protocol(for internal use only)
* @notify_priv: pointer to private data structure specific to notifications
* (for internal use only)
*/
@@ -631,8 +643,6 @@ struct scmi_handle {
void (*devm_put_protocol)(struct scmi_device *sdev, u8 proto);
const struct scmi_notify_ops *notify_ops;
/* for protocol internal use */
void *voltage_priv;
void *notify_priv;
};