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drivers: thermal: tsens: Document the data structures

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Describe how the TSENS device and the various sensors connected to it
are described in the driver

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Amit Kucheria 2019-03-20 18:47:41 +05:30 committed by Eduardo Valentin
parent df535485bb
commit 20a7a2db19
1 changed files with 28 additions and 3 deletions
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31
drivers/thermal/qcom/tsens.h
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@ -14,6 +14,16 @@
struct tsens_device;
/**
* struct tsens_sensor - data for each sensor connected to the tsens device
* @tmdev: tsens device instance that this sensor is connected to
* @tzd: pointer to the thermal zone that this sensor is in
* @offset: offset of temperature adjustment curve
* @id: Sensor ID
* @hw_id: HW ID can be used in case of platform-specific IDs
* @slope: slope of temperature adjustment curve
* @status: 8960-specific variable to track 8960 and 8660 status register offset
*/
struct tsens_sensor {
struct tsens_device *tmdev;
struct thermal_zone_device *tzd;
@ -55,8 +65,8 @@ enum reg_list {
};
/**
* struct tsens_data - tsens instance specific data
* @num_sensors: Max number of sensors supported by platform
* struct tsens_data - tsens platform data
* @num_sensors: Number of sensors supported by platform
* @ops: operations the tsens instance supports
* @hw_ids: Subset of sensors ids supported by platform, if not the first n
* @reg_offsets: Register offsets for commonly used registers
@ -68,12 +78,27 @@ struct tsens_data {
unsigned int *hw_ids;
};
/* Registers to be saved/restored across a context loss */
/**
* struct tsens_context - Registers to be saved/restored across a context loss
*/
struct tsens_context {
int threshold;
int control;
};
/**
* struct tsens_device - private data for each instance of the tsens IP
* @dev: pointer to struct device
* @num_sensors: number of sensors enabled on this device
* @tm_map: pointer to TM register address space
* @srot_map: pointer to SROT register address space
* @tm_offset: deal with old device trees that don't address TM and SROT
* address space separately
* @reg_offsets: array of offsets to important regs for this version of IP
* @ctx: registers to be saved and restored during suspend/resume
* @ops: pointer to list of callbacks supported by this device
* @sensor: list of sensors attached to this device
*/
struct tsens_device {
struct device *dev;
u32 num_sensors;