firmware: arm_scpi: Extend to support sensors
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>
diff --git a/include/linux/scpi_protocol.h b/include/linux/scpi_protocol.h
index e7169cd..80af3cd 100644
--- a/include/linux/scpi_protocol.h
+++ b/include/linux/scpi_protocol.h
@@ -28,6 +28,20 @@
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 @@
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)