staging: ti-soc-thermal: remove kernel-doc warnings reported with -v
Fix all kernel-doc warnings by add documentation about returns. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nishanth Menon
Greg Kroah-Hartman
parent
422a306380
commit
169e8d03f0
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@ -50,7 +50,7 @@
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* @reg: desired register (offset) to be read
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*
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* Helper function to read bandgap registers. It uses the io remapped area.
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* Returns the register value.
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* Return: the register value.
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*/
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static u32 ti_bandgap_readl(struct ti_bandgap *bgp, u32 reg)
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{
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@ -97,6 +97,8 @@ do { \
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*
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* Used to power on/off a bandgap device instance. Only used on those
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* that features tempsoff bit.
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*
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* Return: 0 on success, -ENOTSUPP if tempsoff is not supported.
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*/
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static int ti_bandgap_power(struct ti_bandgap *bgp, bool on)
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{
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@ -124,6 +126,8 @@ exit:
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* This function is desired because, depending on bandgap device version,
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* it might be needed to freeze the bandgap state machine, before fetching
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* the register value.
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*
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* Return: temperature in ADC values.
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*/
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static u32 ti_bandgap_read_temp(struct ti_bandgap *bgp, int id)
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{
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@ -164,6 +168,8 @@ static u32 ti_bandgap_read_temp(struct ti_bandgap *bgp, int id)
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* conditions and acts accordingly. In case there are events pending,
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* it will reset the event mask to wait for the opposite event (next event).
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* Every time there is a new event, it will be reported to thermal layer.
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*
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* Return: IRQ_HANDLED
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*/
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static irqreturn_t ti_bandgap_talert_irq_handler(int irq, void *data)
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{
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@ -224,6 +230,8 @@ static irqreturn_t ti_bandgap_talert_irq_handler(int irq, void *data)
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* This is the Tshut handler. Use it only if bandgap device features
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* HAS(TSHUT). If any sensor fires the Tshut signal, we simply shutdown
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* the system.
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*
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* Return: IRQ_HANDLED
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*/
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static irqreturn_t ti_bandgap_tshut_irq_handler(int irq, void *data)
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{
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@ -246,6 +254,9 @@ static irqreturn_t ti_bandgap_tshut_irq_handler(int irq, void *data)
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* Simple conversion from ADC representation to mCelsius. In case the ADC value
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* is out of the ADC conv table range, it returns -ERANGE, 0 on success.
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* The conversion table is indexed by the ADC values.
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*
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* Return: 0 if conversion was successful, else -ERANGE in case the @adc_val
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* argument is out of the ADC conv table range.
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*/
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static
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int ti_bandgap_adc_to_mcelsius(struct ti_bandgap *bgp, int adc_val, int *t)
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@ -274,6 +285,9 @@ exit:
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* Simple conversion from mCelsius to ADC values. In case the temp value
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* is out of the ADC conv table range, it returns -ERANGE, 0 on success.
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* The conversion table is indexed by the ADC values.
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*
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* Return: 0 if conversion was successful, else -ERANGE in case the @temp
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* argument is out of the ADC conv table range.
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*/
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static
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int ti_bandgap_mcelsius_to_adc(struct ti_bandgap *bgp, long temp, int *adc)
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@ -313,7 +327,8 @@ exit:
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* @sum: address where to write the resulting temperature (in ADC scale)
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*
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* Adds an hysteresis value (in mCelsius) to a ADC temperature value.
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* Returns 0 on success, -ERANGE otherwise.
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*
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* Return: 0 on success, -ERANGE otherwise.
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*/
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static
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int ti_bandgap_add_hyst(struct ti_bandgap *bgp, int adc_val, int hyst_val,
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@ -386,6 +401,8 @@ static void ti_bandgap_unmask_interrupts(struct ti_bandgap *bgp, int id,
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* It checks the resulting t_hot and t_cold values, based on the new passed @val
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* and configures the thresholds so that t_hot is always greater than t_cold.
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* Call this function only if bandgap features HAS(TALERT).
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*
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* Return: 0 if no error, else corresponding error
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*/
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static int ti_bandgap_update_alert_threshold(struct ti_bandgap *bgp, int id,
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int val, bool hot)
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@ -444,6 +461,9 @@ exit:
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*
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* Checks if the bandgap pointer is valid and if the sensor id is also
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* applicable.
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*
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* Return: 0 if no errors, -EINVAL for invalid @bgp pointer or -ERANGE if
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* @id cannot index @bgp sensors.
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*/
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static inline int ti_bandgap_validate(struct ti_bandgap *bgp, int id)
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{
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@ -477,6 +497,8 @@ exit:
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* This function can be used to update t_hot or t_cold, depending on @hot value.
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* Validates the mCelsius range and update the requested threshold.
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* Call this function only if bandgap features HAS(TALERT).
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*
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* Return: 0 if no error, else corresponding error value.
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*/
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static int _ti_bandgap_write_threshold(struct ti_bandgap *bgp, int id, int val,
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bool hot)
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@ -531,6 +553,9 @@ exit:
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* It will fetch the required thresholds (hot and cold) for TALERT signal.
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* This function can be used to read t_hot or t_cold, depending on @hot value.
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* Call this function only if bandgap features HAS(TALERT).
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*
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* Return: 0 if no error, -ENOTSUPP if it has no TALERT support, or the
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* corresponding error value if some operation fails.
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*/
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static int _ti_bandgap_read_threshold(struct ti_bandgap *bgp, int id,
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int *val, bool hot)
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@ -577,7 +602,7 @@ exit:
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* @id: sensor id
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* @thot: resulting current thot value
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*
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* returns 0 on success or the proper error code
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* Return: 0 on success or the proper error code
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*/
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int ti_bandgap_read_thot(struct ti_bandgap *bgp, int id, int *thot)
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{
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@ -590,7 +615,7 @@ int ti_bandgap_read_thot(struct ti_bandgap *bgp, int id, int *thot)
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* @id: sensor id
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* @val: desired thot value
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*
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* returns 0 on success or the proper error code
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* Return: 0 on success or the proper error code
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*/
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int ti_bandgap_write_thot(struct ti_bandgap *bgp, int id, int val)
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{
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@ -603,7 +628,7 @@ int ti_bandgap_write_thot(struct ti_bandgap *bgp, int id, int val)
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* @id: sensor id
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* @tcold: resulting current tcold value
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*
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* returns 0 on success or the proper error code
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* Return: 0 on success or the proper error code
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*/
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int ti_bandgap_read_tcold(struct ti_bandgap *bgp, int id, int *tcold)
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{
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@ -616,7 +641,7 @@ int ti_bandgap_read_tcold(struct ti_bandgap *bgp, int id, int *tcold)
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* @id: sensor id
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* @val: desired tcold value
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*
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* returns 0 on success or the proper error code
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* Return: 0 on success or the proper error code
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*/
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int ti_bandgap_write_tcold(struct ti_bandgap *bgp, int id, int val)
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{
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@ -629,7 +654,7 @@ int ti_bandgap_write_tcold(struct ti_bandgap *bgp, int id, int val)
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* @id: sensor id
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* @interval: resulting update interval in miliseconds
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*
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* returns 0 on success or the proper error code
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* Return: 0 on success or the proper error code
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*/
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int ti_bandgap_read_update_interval(struct ti_bandgap *bgp, int id,
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int *interval)
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@ -661,7 +686,7 @@ int ti_bandgap_read_update_interval(struct ti_bandgap *bgp, int id,
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* @id: sensor id
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* @interval: desired update interval in miliseconds
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*
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* returns 0 on success or the proper error code
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* Return: 0 on success or the proper error code
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*/
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int ti_bandgap_write_update_interval(struct ti_bandgap *bgp,
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int id, u32 interval)
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@ -687,7 +712,7 @@ int ti_bandgap_write_update_interval(struct ti_bandgap *bgp,
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* @id: sensor id
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* @temperature: resulting temperature
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*
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* returns 0 on success or the proper error code
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* Return: 0 on success or the proper error code
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*/
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int ti_bandgap_read_temperature(struct ti_bandgap *bgp, int id,
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int *temperature)
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@ -719,7 +744,7 @@ int ti_bandgap_read_temperature(struct ti_bandgap *bgp, int id,
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* @id: sensor id
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* @data: thermal framework related data to be stored
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*
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* returns 0 on success or the proper error code
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* Return: 0 on success or the proper error code
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*/
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int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data)
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{
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@ -738,7 +763,7 @@ int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data)
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* @bgp: pointer to bandgap instance
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* @id: sensor id
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*
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* returns data stored by set function with sensor id on success or NULL
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* Return: data stored by set function with sensor id on success or NULL
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*/
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void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id)
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{
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@ -758,6 +783,8 @@ void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id)
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*
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* Used to initialize the conversion state machine and set it to a valid
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* state. Called during device initialization and context restore events.
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*
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* Return: 0
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*/
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static int
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ti_bandgap_force_single_read(struct ti_bandgap *bgp, int id)
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@ -791,6 +818,8 @@ ti_bandgap_force_single_read(struct ti_bandgap *bgp, int id)
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* be used for junction temperature monitoring, it is desirable that the
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* sensors are operational all the time, so that alerts are generated
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* properly.
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*
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* Return: 0
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*/
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static int ti_bandgap_set_continuous_mode(struct ti_bandgap *bgp)
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{
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@ -816,6 +845,8 @@ static int ti_bandgap_set_continuous_mode(struct ti_bandgap *bgp)
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* to specify which GPIO line is used. TSHUT IRQ is fired anytime
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* one of the bandgap sensors violates the TSHUT high/hot threshold.
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* And in that case, the system must go off.
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*
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* Return: 0 if no error, else error status
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*/
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static int ti_bandgap_tshut_init(struct ti_bandgap *bgp,
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struct platform_device *pdev)
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@ -855,6 +886,8 @@ static int ti_bandgap_tshut_init(struct ti_bandgap *bgp,
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* TALERT is a normal IRQ and it is fired any time thresholds (hot or cold)
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* are violated. In these situation, the driver must reprogram the thresholds,
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* accordingly to specified policy.
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*
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* Return: 0 if no error, else return corresponding error.
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*/
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static int ti_bandgap_talert_init(struct ti_bandgap *bgp,
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struct platform_device *pdev)
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@ -886,6 +919,9 @@ static const struct of_device_id of_ti_bandgap_match[];
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* Used to read the device tree properties accordingly to the bandgap
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* matching version. Based on bandgap version and its capabilities it
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* will build a struct ti_bandgap out of the required DT entries.
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*
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* Return: valid bandgap structure if successful, else returns ERR_PTR
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* return value must be verified with IS_ERR.
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*/
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static struct ti_bandgap *ti_bandgap_build(struct platform_device *pdev)
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{
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