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firmware: arm_scpi: Extend to support sensors

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ARM System Control Processor (SCP) provides an API to query and use
the sensors available in the system. Extend the SCPI driver to support
 sensor messages.

Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Punit Agrawal
2015-06-19 15:31:46 +01:00
committed by Sudeep Holla
parent d8a44fe7b5
commit 38a1bdc9ff
2 changed files with 77 additions and 0 deletions
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17
include/linux/scpi_protocol.h
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@@ -28,6 +28,20 @@ struct scpi_dvfs_info {
struct scpi_opp *opps;
};
enum scpi_sensor_class {
TEMPERATURE,
VOLTAGE,
CURRENT,
POWER,
};
struct scpi_sensor_info {
u16 sensor_id;
u8 class;
u8 trigger_type;
char name[20];
} __packed;
/**
* struct scpi_ops - represents the various operations provided
* by SCP through SCPI message protocol
@@ -52,6 +66,9 @@ struct scpi_ops {
int (*dvfs_get_idx)(u8);
int (*dvfs_set_idx)(u8, u8);
struct scpi_dvfs_info *(*dvfs_get_info)(u8);
int (*sensor_get_capability)(u16 *sensors);
int (*sensor_get_info)(u16 sensor_id, struct scpi_sensor_info *);
int (*sensor_get_value)(u16, u32 *);
};
#if IS_ENABLED(CONFIG_ARM_SCPI_PROTOCOL)