/**
* omap_bandgap_readl() - simple read helper function
- * @bg_ptr: pointer to omap_bandgap structure
+ * @bgp: pointer to omap_bandgap structure
* @reg: desired register (offset) to be read
*
* Helper function to read bandgap registers. It uses the io remapped area.
* Returns the register value.
*/
-static u32 omap_bandgap_readl(struct omap_bandgap *bg_ptr, u32 reg)
+static u32 omap_bandgap_readl(struct omap_bandgap *bgp, u32 reg)
{
- return readl(bg_ptr->base + reg);
+ return readl(bgp->base + reg);
}
/**
* omap_bandgap_writel() - simple write helper function
- * @bg_ptr: pointer to omap_bandgap structure
+ * @bgp: pointer to omap_bandgap structure
* @val: desired register value to be written
* @reg: desired register (offset) to be written
*
* Helper function to write bandgap registers. It uses the io remapped area.
*/
-static void omap_bandgap_writel(struct omap_bandgap *bg_ptr, u32 val, u32 reg)
+static void omap_bandgap_writel(struct omap_bandgap *bgp, u32 val, u32 reg)
{
- writel(val, bg_ptr->base + reg);
+ writel(val, bgp->base + reg);
}
/**
* RMW_BITS() - used to read, modify and update bandgap bitfields.
* The value passed will be shifted.
*/
-#define RMW_BITS(bg_ptr, id, reg, mask, val) \
+#define RMW_BITS(bgp, id, reg, mask, val) \
do { \
struct temp_sensor_registers *t; \
u32 r; \
\
- t = bg_ptr->conf->sensors[(id)].registers; \
- r = omap_bandgap_readl(bg_ptr, t->reg); \
+ t = bgp->conf->sensors[(id)].registers; \
+ r = omap_bandgap_readl(bgp, t->reg); \
r &= ~t->mask; \
r |= (val) << __ffs(t->mask); \
- omap_bandgap_writel(bg_ptr, r, t->reg); \
+ omap_bandgap_writel(bgp, r, t->reg); \
} while (0)
/*** Basic helper functions ***/
/**
* omap_bandgap_power() - controls the power state of a bandgap device
- * @bg_ptr: pointer to omap_bandgap structure
+ * @bgp: pointer to omap_bandgap structure
* @on: desired power state (1 - on, 0 - off)
*
* Used to power on/off a bandgap device instance. Only used on those
* that features tempsoff bit.
*/
-static int omap_bandgap_power(struct omap_bandgap *bg_ptr, bool on)
+static int omap_bandgap_power(struct omap_bandgap *bgp, bool on)
{
int i;
- if (!OMAP_BANDGAP_HAS(bg_ptr, POWER_SWITCH))
+ if (!OMAP_BANDGAP_HAS(bgp, POWER_SWITCH))
goto exit;
- for (i = 0; i < bg_ptr->conf->sensor_count; i++)
+ for (i = 0; i < bgp->conf->sensor_count; i++)
/* active on 0 */
- RMW_BITS(bg_ptr, i, temp_sensor_ctrl, bgap_tempsoff_mask, !on);
+ RMW_BITS(bgp, i, temp_sensor_ctrl, bgap_tempsoff_mask, !on);
exit:
return 0;
/**
* omap_bandgap_read_temp() - helper function to read sensor temperature
- * @bg_ptr: pointer to omap_bandgap structure
+ * @bgp: pointer to omap_bandgap structure
* @id: bandgap sensor id
*
* Function to concentrate the steps to read sensor temperature register.
* it might be needed to freeze the bandgap state machine, before fetching
* the register value.
*/
-static u32 omap_bandgap_read_temp(struct omap_bandgap *bg_ptr, int id)
+static u32 omap_bandgap_read_temp(struct omap_bandgap *bgp, int id)
{
struct temp_sensor_registers *tsr;
u32 temp, reg;
- tsr = bg_ptr->conf->sensors[id].registers;
+ tsr = bgp->conf->sensors[id].registers;
reg = tsr->temp_sensor_ctrl;
- if (OMAP_BANDGAP_HAS(bg_ptr, FREEZE_BIT)) {
- RMW_BITS(bg_ptr, id, bgap_mask_ctrl, mask_freeze_mask, 1);
+ if (OMAP_BANDGAP_HAS(bgp, FREEZE_BIT)) {
+ RMW_BITS(bgp, id, bgap_mask_ctrl, mask_freeze_mask, 1);
/*
* In case we cannot read from cur_dtemp / dtemp_0,
* then we read from the last valid temp read
}
/* read temperature */
- temp = omap_bandgap_readl(bg_ptr, reg);
+ temp = omap_bandgap_readl(bgp, reg);
temp &= tsr->bgap_dtemp_mask;
- if (OMAP_BANDGAP_HAS(bg_ptr, FREEZE_BIT))
- RMW_BITS(bg_ptr, id, bgap_mask_ctrl, mask_freeze_mask, 0);
+ if (OMAP_BANDGAP_HAS(bgp, FREEZE_BIT))
+ RMW_BITS(bgp, id, bgap_mask_ctrl, mask_freeze_mask, 0);
return temp;
}
*/
static irqreturn_t omap_bandgap_talert_irq_handler(int irq, void *data)
{
- struct omap_bandgap *bg_ptr = data;
+ struct omap_bandgap *bgp = data;
struct temp_sensor_registers *tsr;
u32 t_hot = 0, t_cold = 0, ctrl;
int i;
- spin_lock(&bg_ptr->lock);
- for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
- tsr = bg_ptr->conf->sensors[i].registers;
- ctrl = omap_bandgap_readl(bg_ptr, tsr->bgap_status);
+ spin_lock(&bgp->lock);
+ for (i = 0; i < bgp->conf->sensor_count; i++) {
+ tsr = bgp->conf->sensors[i].registers;
+ ctrl = omap_bandgap_readl(bgp, tsr->bgap_status);
/* Read the status of t_hot */
t_hot = ctrl & tsr->status_hot_mask;
if (!t_cold && !t_hot)
continue;
- ctrl = omap_bandgap_readl(bg_ptr, tsr->bgap_mask_ctrl);
+ ctrl = omap_bandgap_readl(bgp, tsr->bgap_mask_ctrl);
/*
* One TALERT interrupt: Two sources
* If the interrupt is due to t_hot then mask t_hot and
ctrl |= tsr->mask_hot_mask;
}
- omap_bandgap_writel(bg_ptr, ctrl, tsr->bgap_mask_ctrl);
+ omap_bandgap_writel(bgp, ctrl, tsr->bgap_mask_ctrl);
- dev_dbg(bg_ptr->dev,
+ dev_dbg(bgp->dev,
"%s: IRQ from %s sensor: hotevent %d coldevent %d\n",
- __func__, bg_ptr->conf->sensors[i].domain,
+ __func__, bgp->conf->sensors[i].domain,
t_hot, t_cold);
/* report temperature to whom may concern */
- if (bg_ptr->conf->report_temperature)
- bg_ptr->conf->report_temperature(bg_ptr, i);
+ if (bgp->conf->report_temperature)
+ bgp->conf->report_temperature(bgp, i);
}
- spin_unlock(&bg_ptr->lock);
+ spin_unlock(&bgp->lock);
return IRQ_HANDLED;
}
/**
* omap_bandgap_adc_to_mcelsius() - converts an ADC value to mCelsius scale
- * @bg_ptr: struct omap_bandgap pointer
+ * @bgp: struct omap_bandgap pointer
* @adc_val: value in ADC representation
* @t: address where to write the resulting temperature in mCelsius
*
* The conversion table is indexed by the ADC values.
*/
static
-int omap_bandgap_adc_to_mcelsius(struct omap_bandgap *bg_ptr,
+int omap_bandgap_adc_to_mcelsius(struct omap_bandgap *bgp,
int adc_val, int *t)
{
- struct omap_bandgap_data *conf = bg_ptr->conf;
+ struct omap_bandgap_data *conf = bgp->conf;
int ret = 0;
/* look up for temperature in the table and return the temperature */
goto exit;
}
- *t = bg_ptr->conf->conv_table[adc_val - conf->adc_start_val];
+ *t = bgp->conf->conv_table[adc_val - conf->adc_start_val];
exit:
return ret;
/**
* omap_bandgap_mcelsius_to_adc() - converts a mCelsius value to ADC scale
- * @bg_ptr: struct omap_bandgap pointer
+ * @bgp: struct omap_bandgap pointer
* @temp: value in mCelsius
* @adc: address where to write the resulting temperature in ADC representation
*
* The conversion table is indexed by the ADC values.
*/
static
-int omap_bandgap_mcelsius_to_adc(struct omap_bandgap *bg_ptr, long temp,
+int omap_bandgap_mcelsius_to_adc(struct omap_bandgap *bgp, long temp,
int *adc)
{
- struct omap_bandgap_data *conf = bg_ptr->conf;
- const int *conv_table = bg_ptr->conf->conv_table;
+ struct omap_bandgap_data *conf = bgp->conf;
+ const int *conv_table = bgp->conf->conv_table;
int high, low, mid, ret = 0;
low = 0;
/**
* omap_bandgap_add_hyst() - add hysteresis (in mCelsius) to an ADC value
- * @bg_ptr: struct omap_bandgap pointer
+ * @bgp: struct omap_bandgap pointer
* @adc_val: temperature value in ADC representation
* @hyst_val: hysteresis value in mCelsius
* @sum: address where to write the resulting temperature (in ADC scale)
* Returns 0 on success, -ERANGE otherwise.
*/
static
-int omap_bandgap_add_hyst(struct omap_bandgap *bg_ptr, int adc_val,
+int omap_bandgap_add_hyst(struct omap_bandgap *bgp, int adc_val,
int hyst_val, u32 *sum)
{
int temp, ret;
* Need to add in the mcelsius domain, so we have a temperature
* the conv_table range
*/
- ret = omap_bandgap_adc_to_mcelsius(bg_ptr, adc_val, &temp);
+ ret = omap_bandgap_adc_to_mcelsius(bgp, adc_val, &temp);
if (ret < 0)
goto exit;
temp += hyst_val;
- ret = omap_bandgap_mcelsius_to_adc(bg_ptr, temp, sum);
+ ret = omap_bandgap_mcelsius_to_adc(bgp, temp, sum);
exit:
return ret;
/**
* omap_bandgap_unmask_interrupts() - unmasks the events of thot & tcold
- * @bg_ptr: struct omap_bandgap pointer
+ * @bgp: struct omap_bandgap pointer
* @t_hot: hot temperature value to trigger alert signal
* @t_cold: cold temperature value to trigger alert signal
*
* Checks the requested t_hot and t_cold values and configures the IRQ event
* masks accordingly. Call this function only if bandgap features HAS(TALERT).
*/
-static void omap_bandgap_unmask_interrupts(struct omap_bandgap *bg_ptr, int id,
+static void omap_bandgap_unmask_interrupts(struct omap_bandgap *bgp, int id,
u32 t_hot, u32 t_cold)
{
struct temp_sensor_registers *tsr;
u32 temp, reg_val;
/* Read the current on die temperature */
- temp = omap_bandgap_read_temp(bg_ptr, id);
+ temp = omap_bandgap_read_temp(bgp, id);
- tsr = bg_ptr->conf->sensors[id].registers;
- reg_val = omap_bandgap_readl(bg_ptr, tsr->bgap_mask_ctrl);
+ tsr = bgp->conf->sensors[id].registers;
+ reg_val = omap_bandgap_readl(bgp, tsr->bgap_mask_ctrl);
if (temp < t_hot)
reg_val |= tsr->mask_hot_mask;
reg_val |= tsr->mask_cold_mask;
else
reg_val &= ~tsr->mask_cold_mask;
- omap_bandgap_writel(bg_ptr, reg_val, tsr->bgap_mask_ctrl);
+ omap_bandgap_writel(bgp, reg_val, tsr->bgap_mask_ctrl);
}
/**
* omap_bandgap_update_alert_threshold() - sequence to update thresholds
- * @bg_ptr: struct omap_bandgap pointer
+ * @bgp: struct omap_bandgap pointer
* @id: bandgap sensor id
* @val: value (ADC) of a new threshold
* @hot: desired threshold to be updated. true if threshold hot, false if
* Call this function only if bandgap features HAS(TALERT).
*/
static
-int omap_bandgap_update_alert_threshold(struct omap_bandgap *bg_ptr, int id,
+int omap_bandgap_update_alert_threshold(struct omap_bandgap *bgp, int id,
int val, bool hot)
{
- struct temp_sensor_data *ts_data = bg_ptr->conf->sensors[id].ts_data;
+ struct temp_sensor_data *ts_data = bgp->conf->sensors[id].ts_data;
struct temp_sensor_registers *tsr;
u32 thresh_val, reg_val, t_hot, t_cold;
int err = 0;
- tsr = bg_ptr->conf->sensors[id].registers;
+ tsr = bgp->conf->sensors[id].registers;
/* obtain the current value */
- thresh_val = omap_bandgap_readl(bg_ptr, tsr->bgap_threshold);
+ thresh_val = omap_bandgap_readl(bgp, tsr->bgap_threshold);
t_cold = (thresh_val & tsr->threshold_tcold_mask) >>
__ffs(tsr->threshold_tcold_mask);
t_hot = (thresh_val & tsr->threshold_thot_mask) >>
if (t_cold < t_hot) {
if (hot)
- err = omap_bandgap_add_hyst(bg_ptr, t_hot,
+ err = omap_bandgap_add_hyst(bgp, t_hot,
-ts_data->hyst_val,
&t_cold);
else
- err = omap_bandgap_add_hyst(bg_ptr, t_cold,
+ err = omap_bandgap_add_hyst(bgp, t_cold,
ts_data->hyst_val,
&t_hot);
}
reg_val |= (t_hot << __ffs(tsr->threshold_thot_mask));
reg_val |= thresh_val & ~tsr->threshold_tcold_mask;
reg_val |= (t_cold << __ffs(tsr->threshold_tcold_mask));
- omap_bandgap_writel(bg_ptr, reg_val, tsr->bgap_threshold);
+ omap_bandgap_writel(bgp, reg_val, tsr->bgap_threshold);
if (err) {
- dev_err(bg_ptr->dev, "failed to reprogram thot threshold\n");
+ dev_err(bgp->dev, "failed to reprogram thot threshold\n");
err = -EIO;
goto exit;
}
- omap_bandgap_unmask_interrupts(bg_ptr, id, t_hot, t_cold);
+ omap_bandgap_unmask_interrupts(bgp, id, t_hot, t_cold);
exit:
return err;
}
/**
* omap_bandgap_validate() - helper to check the sanity of a struct omap_bandgap
- * @bg_ptr: struct omap_bandgap pointer
+ * @bgp: struct omap_bandgap pointer
* @id: bandgap sensor id
*
* Checks if the bandgap pointer is valid and if the sensor id is also
* applicable.
*/
-static inline int omap_bandgap_validate(struct omap_bandgap *bg_ptr, int id)
+static inline int omap_bandgap_validate(struct omap_bandgap *bgp, int id)
{
int ret = 0;
- if (IS_ERR_OR_NULL(bg_ptr)) {
+ if (IS_ERR_OR_NULL(bgp)) {
pr_err("%s: invalid bandgap pointer\n", __func__);
ret = -EINVAL;
goto exit;
}
- if ((id < 0) || (id >= bg_ptr->conf->sensor_count)) {
- dev_err(bg_ptr->dev, "%s: sensor id out of range (%d)\n",
+ if ((id < 0) || (id >= bgp->conf->sensor_count)) {
+ dev_err(bgp->dev, "%s: sensor id out of range (%d)\n",
__func__, id);
ret = -ERANGE;
}
/**
* _omap_bandgap_write_threshold() - helper to update TALERT t_cold or t_hot
- * @bg_ptr: struct omap_bandgap pointer
+ * @bgp: struct omap_bandgap pointer
* @id: bandgap sensor id
* @val: value (mCelsius) of a new threshold
* @hot: desired threshold to be updated. true if threshold hot, false if
* Validates the mCelsius range and update the requested threshold.
* Call this function only if bandgap features HAS(TALERT).
*/
-int _omap_bandgap_write_threshold(struct omap_bandgap *bg_ptr, int id, int val,
+int _omap_bandgap_write_threshold(struct omap_bandgap *bgp, int id, int val,
bool hot)
{
struct temp_sensor_data *ts_data;
u32 adc_val;
int ret;
- ret = omap_bandgap_validate(bg_ptr, id);
+ ret = omap_bandgap_validate(bgp, id);
if (ret)
goto exit;
- if (!OMAP_BANDGAP_HAS(bg_ptr, TALERT)) {
+ if (!OMAP_BANDGAP_HAS(bgp, TALERT)) {
ret = -ENOTSUPP;
goto exit;
}
- ts_data = bg_ptr->conf->sensors[id].ts_data;
- tsr = bg_ptr->conf->sensors[id].registers;
+ ts_data = bgp->conf->sensors[id].ts_data;
+ tsr = bgp->conf->sensors[id].registers;
if (hot) {
if (val < ts_data->min_temp + ts_data->hyst_val)
ret = -EINVAL;
if (ret)
goto exit;
- ret = omap_bandgap_mcelsius_to_adc(bg_ptr, val, &adc_val);
+ ret = omap_bandgap_mcelsius_to_adc(bgp, val, &adc_val);
if (ret < 0)
goto exit;
- spin_lock(&bg_ptr->lock);
- omap_bandgap_update_alert_threshold(bg_ptr, id, adc_val, hot);
- spin_unlock(&bg_ptr->lock);
+ spin_lock(&bgp->lock);
+ omap_bandgap_update_alert_threshold(bgp, id, adc_val, hot);
+ spin_unlock(&bgp->lock);
exit:
return ret;
/**
* _omap_bandgap_read_threshold() - helper to read TALERT t_cold or t_hot
- * @bg_ptr: struct omap_bandgap pointer
+ * @bgp: struct omap_bandgap pointer
* @id: bandgap sensor id
* @val: value (mCelsius) of a threshold
* @hot: desired threshold to be read. true if threshold hot, false if
* This function can be used to read t_hot or t_cold, depending on @hot value.
* Call this function only if bandgap features HAS(TALERT).
*/
-int _omap_bandgap_read_threshold(struct omap_bandgap *bg_ptr, int id,
+int _omap_bandgap_read_threshold(struct omap_bandgap *bgp, int id,
int *val, bool hot)
{
struct temp_sensor_registers *tsr;
u32 temp, mask;
int ret = 0;
- ret = omap_bandgap_validate(bg_ptr, id);
+ ret = omap_bandgap_validate(bgp, id);
if (ret)
goto exit;
- if (!OMAP_BANDGAP_HAS(bg_ptr, TALERT)) {
+ if (!OMAP_BANDGAP_HAS(bgp, TALERT)) {
ret = -ENOTSUPP;
goto exit;
}
- tsr = bg_ptr->conf->sensors[id].registers;
+ tsr = bgp->conf->sensors[id].registers;
if (hot)
mask = tsr->threshold_thot_mask;
else
mask = tsr->threshold_tcold_mask;
- temp = omap_bandgap_readl(bg_ptr, tsr->bgap_threshold);
+ temp = omap_bandgap_readl(bgp, tsr->bgap_threshold);
temp = (temp & mask) >> __ffs(mask);
- ret |= omap_bandgap_adc_to_mcelsius(bg_ptr, temp, &temp);
+ ret |= omap_bandgap_adc_to_mcelsius(bgp, temp, &temp);
if (ret) {
- dev_err(bg_ptr->dev, "failed to read thot\n");
+ dev_err(bgp->dev, "failed to read thot\n");
ret = -EIO;
goto exit;
}
/**
* omap_bandgap_read_thot() - reads sensor current thot
- * @bg_ptr - pointer to bandgap instance
+ * @bgp - pointer to bandgap instance
* @id - sensor id
* @thot - resulting current thot value
*
* returns 0 on success or the proper error code
*/
-int omap_bandgap_read_thot(struct omap_bandgap *bg_ptr, int id,
+int omap_bandgap_read_thot(struct omap_bandgap *bgp, int id,
int *thot)
{
- return _omap_bandgap_read_threshold(bg_ptr, id, thot, true);
+ return _omap_bandgap_read_threshold(bgp, id, thot, true);
}
/**
* omap_bandgap_write_thot() - sets sensor current thot
- * @bg_ptr - pointer to bandgap instance
+ * @bgp - pointer to bandgap instance
* @id - sensor id
* @val - desired thot value
*
* returns 0 on success or the proper error code
*/
-int omap_bandgap_write_thot(struct omap_bandgap *bg_ptr, int id, int val)
+int omap_bandgap_write_thot(struct omap_bandgap *bgp, int id, int val)
{
- return _omap_bandgap_write_threshold(bg_ptr, id, val, true);
+ return _omap_bandgap_write_threshold(bgp, id, val, true);
}
/**
* omap_bandgap_read_tcold() - reads sensor current tcold
- * @bg_ptr - pointer to bandgap instance
+ * @bgp - pointer to bandgap instance
* @id - sensor id
* @tcold - resulting current tcold value
*
* returns 0 on success or the proper error code
*/
-int omap_bandgap_read_tcold(struct omap_bandgap *bg_ptr, int id,
+int omap_bandgap_read_tcold(struct omap_bandgap *bgp, int id,
int *tcold)
{
- return _omap_bandgap_read_threshold(bg_ptr, id, tcold, false);
+ return _omap_bandgap_read_threshold(bgp, id, tcold, false);
}
/**
* omap_bandgap_write_tcold() - sets the sensor tcold
- * @bg_ptr - pointer to bandgap instance
+ * @bgp - pointer to bandgap instance
* @id - sensor id
* @val - desired tcold value
*
* returns 0 on success or the proper error code
*/
-int omap_bandgap_write_tcold(struct omap_bandgap *bg_ptr, int id, int val)
+int omap_bandgap_write_tcold(struct omap_bandgap *bgp, int id, int val)
{
- return _omap_bandgap_write_threshold(bg_ptr, id, val, false);
+ return _omap_bandgap_write_threshold(bgp, id, val, false);
}
/**
* omap_bandgap_read_update_interval() - read the sensor update interval
- * @bg_ptr - pointer to bandgap instance
+ * @bgp - pointer to bandgap instance
* @id - sensor id
* @interval - resulting update interval in miliseconds
*
* returns 0 on success or the proper error code
*/
-int omap_bandgap_read_update_interval(struct omap_bandgap *bg_ptr, int id,
+int omap_bandgap_read_update_interval(struct omap_bandgap *bgp, int id,
int *interval)
{
struct temp_sensor_registers *tsr;
u32 time;
int ret;
- ret = omap_bandgap_validate(bg_ptr, id);
+ ret = omap_bandgap_validate(bgp, id);
if (ret)
return ret;
- if (!OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
+ if (!OMAP_BANDGAP_HAS(bgp, COUNTER))
return -ENOTSUPP;
- tsr = bg_ptr->conf->sensors[id].registers;
- time = omap_bandgap_readl(bg_ptr, tsr->bgap_counter);
+ tsr = bgp->conf->sensors[id].registers;
+ time = omap_bandgap_readl(bgp, tsr->bgap_counter);
time = (time & tsr->counter_mask) >> __ffs(tsr->counter_mask);
- time = time * 1000 / bg_ptr->clk_rate;
+ time = time * 1000 / bgp->clk_rate;
*interval = time;
/**
* omap_bandgap_write_update_interval() - set the update interval
- * @bg_ptr - pointer to bandgap instance
+ * @bgp - pointer to bandgap instance
* @id - sensor id
* @interval - desired update interval in miliseconds
*
* returns 0 on success or the proper error code
*/
-int omap_bandgap_write_update_interval(struct omap_bandgap *bg_ptr,
+int omap_bandgap_write_update_interval(struct omap_bandgap *bgp,
int id, u32 interval)
{
- int ret = omap_bandgap_validate(bg_ptr, id);
+ int ret = omap_bandgap_validate(bgp, id);
if (ret)
return ret;
- if (!OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
+ if (!OMAP_BANDGAP_HAS(bgp, COUNTER))
return -ENOTSUPP;
- interval = interval * bg_ptr->clk_rate / 1000;
- spin_lock(&bg_ptr->lock);
- RMW_BITS(bg_ptr, id, bgap_counter, counter_mask, interval);
- spin_unlock(&bg_ptr->lock);
+ interval = interval * bgp->clk_rate / 1000;
+ spin_lock(&bgp->lock);
+ RMW_BITS(bgp, id, bgap_counter, counter_mask, interval);
+ spin_unlock(&bgp->lock);
return 0;
}
/**
* omap_bandgap_read_temperature() - report current temperature
- * @bg_ptr - pointer to bandgap instance
+ * @bgp - pointer to bandgap instance
* @id - sensor id
* @temperature - resulting temperature
*
* returns 0 on success or the proper error code
*/
-int omap_bandgap_read_temperature(struct omap_bandgap *bg_ptr, int id,
+int omap_bandgap_read_temperature(struct omap_bandgap *bgp, int id,
int *temperature)
{
u32 temp;
int ret;
- ret = omap_bandgap_validate(bg_ptr, id);
+ ret = omap_bandgap_validate(bgp, id);
if (ret)
return ret;
- spin_lock(&bg_ptr->lock);
- temp = omap_bandgap_read_temp(bg_ptr, id);
- spin_unlock(&bg_ptr->lock);
+ spin_lock(&bgp->lock);
+ temp = omap_bandgap_read_temp(bgp, id);
+ spin_unlock(&bgp->lock);
- ret |= omap_bandgap_adc_to_mcelsius(bg_ptr, temp, &temp);
+ ret |= omap_bandgap_adc_to_mcelsius(bgp, temp, &temp);
if (ret)
return -EIO;
/**
* omap_bandgap_set_sensor_data() - helper function to store thermal
* framework related data.
- * @bg_ptr - pointer to bandgap instance
+ * @bgp - pointer to bandgap instance
* @id - sensor id
* @data - thermal framework related data to be stored
*
* returns 0 on success or the proper error code
*/
-int omap_bandgap_set_sensor_data(struct omap_bandgap *bg_ptr, int id,
+int omap_bandgap_set_sensor_data(struct omap_bandgap *bgp, int id,
void *data)
{
- int ret = omap_bandgap_validate(bg_ptr, id);
+ int ret = omap_bandgap_validate(bgp, id);
if (ret)
return ret;
- bg_ptr->conf->sensors[id].data = data;
+ bgp->conf->sensors[id].data = data;
return 0;
}
/**
* omap_bandgap_get_sensor_data() - helper function to get thermal
* framework related data.
- * @bg_ptr - pointer to bandgap instance
+ * @bgp - pointer to bandgap instance
* @id - sensor id
*
* returns data stored by set function with sensor id on success or NULL
*/
-void *omap_bandgap_get_sensor_data(struct omap_bandgap *bg_ptr, int id)
+void *omap_bandgap_get_sensor_data(struct omap_bandgap *bgp, int id)
{
- int ret = omap_bandgap_validate(bg_ptr, id);
+ int ret = omap_bandgap_validate(bgp, id);
if (ret)
return ERR_PTR(ret);
- return bg_ptr->conf->sensors[id].data;
+ return bgp->conf->sensors[id].data;
}
/*** Helper functions used during device initialization ***/
/**
* omap_bandgap_force_single_read() - executes 1 single ADC conversion
- * @bg_ptr: pointer to struct omap_bandgap
+ * @bgp: pointer to struct omap_bandgap
* @id: sensor id which it is desired to read 1 temperature
*
* Used to initialize the conversion state machine and set it to a valid
* state. Called during device initialization and context restore events.
*/
static int
-omap_bandgap_force_single_read(struct omap_bandgap *bg_ptr, int id)
+omap_bandgap_force_single_read(struct omap_bandgap *bgp, int id)
{
u32 temp = 0, counter = 1000;
/* Select single conversion mode */
- if (OMAP_BANDGAP_HAS(bg_ptr, MODE_CONFIG))
- RMW_BITS(bg_ptr, id, bgap_mode_ctrl, mode_ctrl_mask, 0);
+ if (OMAP_BANDGAP_HAS(bgp, MODE_CONFIG))
+ RMW_BITS(bgp, id, bgap_mode_ctrl, mode_ctrl_mask, 0);
/* Start of Conversion = 1 */
- RMW_BITS(bg_ptr, id, temp_sensor_ctrl, bgap_soc_mask, 1);
+ RMW_BITS(bgp, id, temp_sensor_ctrl, bgap_soc_mask, 1);
/* Wait until DTEMP is updated */
- temp = omap_bandgap_read_temp(bg_ptr, id);
+ temp = omap_bandgap_read_temp(bgp, id);
while ((temp == 0) && --counter)
- temp = omap_bandgap_read_temp(bg_ptr, id);
+ temp = omap_bandgap_read_temp(bgp, id);
/* REVISIT: Check correct condition for end of conversion */
/* Start of Conversion = 0 */
- RMW_BITS(bg_ptr, id, temp_sensor_ctrl, bgap_soc_mask, 0);
+ RMW_BITS(bgp, id, temp_sensor_ctrl, bgap_soc_mask, 0);
return 0;
}
/**
* omap_bandgap_set_continous_mode() - One time enabling of continuous mode
- * @bg_ptr: pointer to struct omap_bandgap
+ * @bgp: pointer to struct omap_bandgap
*
* Call this function only if HAS(MODE_CONFIG) is set. As this driver may
* be used for junction temperature monitoring, it is desirable that the
* sensors are operational all the time, so that alerts are generated
* properly.
*/
-static int omap_bandgap_set_continuous_mode(struct omap_bandgap *bg_ptr)
+static int omap_bandgap_set_continuous_mode(struct omap_bandgap *bgp)
{
int i;
- for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
+ for (i = 0; i < bgp->conf->sensor_count; i++) {
/* Perform a single read just before enabling continuous */
- omap_bandgap_force_single_read(bg_ptr, i);
- RMW_BITS(bg_ptr, i, bgap_mode_ctrl, mode_ctrl_mask, 1);
+ omap_bandgap_force_single_read(bgp, i);
+ RMW_BITS(bgp, i, bgap_mode_ctrl, mode_ctrl_mask, 1);
}
return 0;
/**
* omap_bandgap_tshut_init() - setup and initialize tshut handling
- * @bg_ptr: pointer to struct omap_bandgap
+ * @bgp: pointer to struct omap_bandgap
* @pdev: pointer to device struct platform_device
*
* Call this function only in case the bandgap features HAS(TSHUT).
* one of the bandgap sensors violates the TSHUT high/hot threshold.
* And in that case, the system must go off.
*/
-static int omap_bandgap_tshut_init(struct omap_bandgap *bg_ptr,
+static int omap_bandgap_tshut_init(struct omap_bandgap *bgp,
struct platform_device *pdev)
{
- int gpio_nr = bg_ptr->tshut_gpio;
+ int gpio_nr = bgp->tshut_gpio;
int status;
/* Request for gpio_86 line */
status = gpio_request(gpio_nr, "tshut");
if (status < 0) {
- dev_err(bg_ptr->dev,
- "Could not request for TSHUT GPIO:%i\n", 86);
+ dev_err(bgp->dev, "Could not request for TSHUT GPIO:%i\n", 86);
return status;
}
status = gpio_direction_input(gpio_nr);
if (status) {
- dev_err(bg_ptr->dev,
- "Cannot set input TSHUT GPIO %d\n", gpio_nr);
+ dev_err(bgp->dev, "Cannot set input TSHUT GPIO %d\n", gpio_nr);
return status;
}
NULL);
if (status) {
gpio_free(gpio_nr);
- dev_err(bg_ptr->dev, "request irq failed for TSHUT");
+ dev_err(bgp->dev, "request irq failed for TSHUT");
}
return 0;
/**
* omap_bandgap_alert_init() - setup and initialize talert handling
- * @bg_ptr: pointer to struct omap_bandgap
+ * @bgp: pointer to struct omap_bandgap
* @pdev: pointer to device struct platform_device
*
* Call this function only in case the bandgap features HAS(TALERT).
* are violated. In these situation, the driver must reprogram the thresholds,
* accordingly to specified policy.
*/
-static int omap_bandgap_talert_init(struct omap_bandgap *bg_ptr,
+static int omap_bandgap_talert_init(struct omap_bandgap *bgp,
struct platform_device *pdev)
{
int ret;
- bg_ptr->irq = platform_get_irq(pdev, 0);
- if (bg_ptr->irq < 0) {
+ bgp->irq = platform_get_irq(pdev, 0);
+ if (bgp->irq < 0) {
dev_err(&pdev->dev, "get_irq failed\n");
- return bg_ptr->irq;
+ return bgp->irq;
}
- ret = request_threaded_irq(bg_ptr->irq, NULL,
+ ret = request_threaded_irq(bgp->irq, NULL,
omap_bandgap_talert_irq_handler,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
- "talert", bg_ptr);
+ "talert", bgp);
if (ret) {
dev_err(&pdev->dev, "Request threaded irq failed.\n");
return ret;
/**
* omap_bandgap_build() - parse DT and setup a struct omap_bandgap
- * @bg_ptr: pointer to struct omap_bandgap
+ * @bgp: pointer to struct omap_bandgap
* @pdev: pointer to device struct platform_device
*
* Used to read the device tree properties accordingly to the bandgap
{
struct device_node *node = pdev->dev.of_node;
const struct of_device_id *of_id;
- struct omap_bandgap *bg_ptr;
+ struct omap_bandgap *bgp;
struct resource *res;
u32 prop;
int i;
return ERR_PTR(-EINVAL);
}
- bg_ptr = devm_kzalloc(&pdev->dev, sizeof(struct omap_bandgap),
+ bgp = devm_kzalloc(&pdev->dev, sizeof(struct omap_bandgap),
GFP_KERNEL);
- if (!bg_ptr) {
+ if (!bgp) {
dev_err(&pdev->dev, "Unable to allocate mem for driver ref\n");
return ERR_PTR(-ENOMEM);
}
of_id = of_match_device(of_omap_bandgap_match, &pdev->dev);
if (of_id)
- bg_ptr->conf = of_id->data;
+ bgp->conf = of_id->data;
i = 0;
do {
break;
chunk = devm_ioremap_resource(&pdev->dev, res);
if (i == 0)
- bg_ptr->base = chunk;
+ bgp->base = chunk;
if (IS_ERR(chunk))
return ERR_CAST(chunk);
i++;
} while (res);
- if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT)) {
+ if (OMAP_BANDGAP_HAS(bgp, TSHUT)) {
if (of_property_read_u32(node, "ti,tshut-gpio", &prop) < 0) {
dev_err(&pdev->dev, "missing tshut gpio in device tree\n");
return ERR_PTR(-EINVAL);
}
- bg_ptr->tshut_gpio = prop;
- if (!gpio_is_valid(bg_ptr->tshut_gpio)) {
+ bgp->tshut_gpio = prop;
+ if (!gpio_is_valid(bgp->tshut_gpio)) {
dev_err(&pdev->dev, "invalid gpio for tshut (%d)\n",
- bg_ptr->tshut_gpio);
+ bgp->tshut_gpio);
return ERR_PTR(-EINVAL);
}
}
- return bg_ptr;
+ return bgp;
}
/*** Device driver call backs ***/
static
int omap_bandgap_probe(struct platform_device *pdev)
{
- struct omap_bandgap *bg_ptr;
+ struct omap_bandgap *bgp;
int clk_rate, ret = 0, i;
- bg_ptr = omap_bandgap_build(pdev);
- if (IS_ERR_OR_NULL(bg_ptr)) {
+ bgp = omap_bandgap_build(pdev);
+ if (IS_ERR_OR_NULL(bgp)) {
dev_err(&pdev->dev, "failed to fetch platform data\n");
- return PTR_ERR(bg_ptr);
+ return PTR_ERR(bgp);
}
- bg_ptr->dev = &pdev->dev;
+ bgp->dev = &pdev->dev;
- if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT)) {
- ret = omap_bandgap_tshut_init(bg_ptr, pdev);
+ if (OMAP_BANDGAP_HAS(bgp, TSHUT)) {
+ ret = omap_bandgap_tshut_init(bgp, pdev);
if (ret) {
dev_err(&pdev->dev,
"failed to initialize system tshut IRQ\n");
}
}
- bg_ptr->fclock = clk_get(NULL, bg_ptr->conf->fclock_name);
- ret = IS_ERR_OR_NULL(bg_ptr->fclock);
+ bgp->fclock = clk_get(NULL, bgp->conf->fclock_name);
+ ret = IS_ERR_OR_NULL(bgp->fclock);
if (ret) {
dev_err(&pdev->dev, "failed to request fclock reference\n");
goto free_irqs;
}
- bg_ptr->div_clk = clk_get(NULL, bg_ptr->conf->div_ck_name);
- ret = IS_ERR_OR_NULL(bg_ptr->div_clk);
+ bgp->div_clk = clk_get(NULL, bgp->conf->div_ck_name);
+ ret = IS_ERR_OR_NULL(bgp->div_clk);
if (ret) {
dev_err(&pdev->dev,
"failed to request div_ts_ck clock ref\n");
goto free_irqs;
}
- for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
+ for (i = 0; i < bgp->conf->sensor_count; i++) {
struct temp_sensor_registers *tsr;
u32 val;
- tsr = bg_ptr->conf->sensors[i].registers;
+ tsr = bgp->conf->sensors[i].registers;
/*
* check if the efuse has a non-zero value if not
* it is an untrimmed sample and the temperatures
* may not be accurate
*/
- val = omap_bandgap_readl(bg_ptr, tsr->bgap_efuse);
+ val = omap_bandgap_readl(bgp, tsr->bgap_efuse);
if (ret || !val)
dev_info(&pdev->dev,
"Non-trimmed BGAP, Temp not accurate\n");
}
- clk_rate = clk_round_rate(bg_ptr->div_clk,
- bg_ptr->conf->sensors[0].ts_data->max_freq);
- if (clk_rate < bg_ptr->conf->sensors[0].ts_data->min_freq ||
+ clk_rate = clk_round_rate(bgp->div_clk,
+ bgp->conf->sensors[0].ts_data->max_freq);
+ if (clk_rate < bgp->conf->sensors[0].ts_data->min_freq ||
clk_rate == 0xffffffff) {
ret = -ENODEV;
dev_err(&pdev->dev, "wrong clock rate (%d)\n", clk_rate);
goto put_clks;
}
- ret = clk_set_rate(bg_ptr->div_clk, clk_rate);
+ ret = clk_set_rate(bgp->div_clk, clk_rate);
if (ret)
dev_err(&pdev->dev, "Cannot re-set clock rate. Continuing\n");
- bg_ptr->clk_rate = clk_rate;
- if (OMAP_BANDGAP_HAS(bg_ptr, CLK_CTRL))
- clk_prepare_enable(bg_ptr->fclock);
+ bgp->clk_rate = clk_rate;
+ if (OMAP_BANDGAP_HAS(bgp, CLK_CTRL))
+ clk_prepare_enable(bgp->fclock);
- spin_lock_init(&bg_ptr->lock);
- bg_ptr->dev = &pdev->dev;
- platform_set_drvdata(pdev, bg_ptr);
+ spin_lock_init(&bgp->lock);
+ bgp->dev = &pdev->dev;
+ platform_set_drvdata(pdev, bgp);
- omap_bandgap_power(bg_ptr, true);
+ omap_bandgap_power(bgp, true);
/* Set default counter to 1 for now */
- if (OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
- for (i = 0; i < bg_ptr->conf->sensor_count; i++)
- RMW_BITS(bg_ptr, i, bgap_counter, counter_mask, 1);
+ if (OMAP_BANDGAP_HAS(bgp, COUNTER))
+ for (i = 0; i < bgp->conf->sensor_count; i++)
+ RMW_BITS(bgp, i, bgap_counter, counter_mask, 1);
/* Set default thresholds for alert and shutdown */
- for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
+ for (i = 0; i < bgp->conf->sensor_count; i++) {
struct temp_sensor_data *ts_data;
- ts_data = bg_ptr->conf->sensors[i].ts_data;
+ ts_data = bgp->conf->sensors[i].ts_data;
- if (OMAP_BANDGAP_HAS(bg_ptr, TALERT)) {
+ if (OMAP_BANDGAP_HAS(bgp, TALERT)) {
/* Set initial Talert thresholds */
- RMW_BITS(bg_ptr, i, bgap_threshold,
+ RMW_BITS(bgp, i, bgap_threshold,
threshold_tcold_mask, ts_data->t_cold);
- RMW_BITS(bg_ptr, i, bgap_threshold,
+ RMW_BITS(bgp, i, bgap_threshold,
threshold_thot_mask, ts_data->t_hot);
/* Enable the alert events */
- RMW_BITS(bg_ptr, i, bgap_mask_ctrl, mask_hot_mask, 1);
- RMW_BITS(bg_ptr, i, bgap_mask_ctrl, mask_cold_mask, 1);
+ RMW_BITS(bgp, i, bgap_mask_ctrl, mask_hot_mask, 1);
+ RMW_BITS(bgp, i, bgap_mask_ctrl, mask_cold_mask, 1);
}
- if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT_CONFIG)) {
+ if (OMAP_BANDGAP_HAS(bgp, TSHUT_CONFIG)) {
/* Set initial Tshut thresholds */
- RMW_BITS(bg_ptr, i, tshut_threshold,
+ RMW_BITS(bgp, i, tshut_threshold,
tshut_hot_mask, ts_data->tshut_hot);
- RMW_BITS(bg_ptr, i, tshut_threshold,
+ RMW_BITS(bgp, i, tshut_threshold,
tshut_cold_mask, ts_data->tshut_cold);
}
}
- if (OMAP_BANDGAP_HAS(bg_ptr, MODE_CONFIG))
- omap_bandgap_set_continuous_mode(bg_ptr);
+ if (OMAP_BANDGAP_HAS(bgp, MODE_CONFIG))
+ omap_bandgap_set_continuous_mode(bgp);
/* Set .250 seconds time as default counter */
- if (OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
- for (i = 0; i < bg_ptr->conf->sensor_count; i++)
- RMW_BITS(bg_ptr, i, bgap_counter, counter_mask,
- bg_ptr->clk_rate / 4);
+ if (OMAP_BANDGAP_HAS(bgp, COUNTER))
+ for (i = 0; i < bgp->conf->sensor_count; i++)
+ RMW_BITS(bgp, i, bgap_counter, counter_mask,
+ bgp->clk_rate / 4);
/* Every thing is good? Then expose the sensors */
- for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
+ for (i = 0; i < bgp->conf->sensor_count; i++) {
char *domain;
- if (bg_ptr->conf->sensors[i].register_cooling)
- bg_ptr->conf->sensors[i].register_cooling(bg_ptr, i);
+ if (bgp->conf->sensors[i].register_cooling)
+ bgp->conf->sensors[i].register_cooling(bgp, i);
- domain = bg_ptr->conf->sensors[i].domain;
- if (bg_ptr->conf->expose_sensor)
- bg_ptr->conf->expose_sensor(bg_ptr, i, domain);
+ domain = bgp->conf->sensors[i].domain;
+ if (bgp->conf->expose_sensor)
+ bgp->conf->expose_sensor(bgp, i, domain);
}
/*
* might be called as soon as it is enabled where as rest of framework
* is still getting initialised.
*/
- if (OMAP_BANDGAP_HAS(bg_ptr, TALERT)) {
- ret = omap_bandgap_talert_init(bg_ptr, pdev);
+ if (OMAP_BANDGAP_HAS(bgp, TALERT)) {
+ ret = omap_bandgap_talert_init(bgp, pdev);
if (ret) {
dev_err(&pdev->dev, "failed to initialize Talert IRQ\n");
- i = bg_ptr->conf->sensor_count;
+ i = bgp->conf->sensor_count;
goto disable_clk;
}
}
return 0;
disable_clk:
- if (OMAP_BANDGAP_HAS(bg_ptr, CLK_CTRL))
- clk_disable_unprepare(bg_ptr->fclock);
+ if (OMAP_BANDGAP_HAS(bgp, CLK_CTRL))
+ clk_disable_unprepare(bgp->fclock);
put_clks:
- clk_put(bg_ptr->fclock);
- clk_put(bg_ptr->div_clk);
+ clk_put(bgp->fclock);
+ clk_put(bgp->div_clk);
free_irqs:
- if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT)) {
- free_irq(gpio_to_irq(bg_ptr->tshut_gpio), NULL);
- gpio_free(bg_ptr->tshut_gpio);
+ if (OMAP_BANDGAP_HAS(bgp, TSHUT)) {
+ free_irq(gpio_to_irq(bgp->tshut_gpio), NULL);
+ gpio_free(bgp->tshut_gpio);
}
return ret;
static
int omap_bandgap_remove(struct platform_device *pdev)
{
- struct omap_bandgap *bg_ptr = platform_get_drvdata(pdev);
+ struct omap_bandgap *bgp = platform_get_drvdata(pdev);
int i;
/* First thing is to remove sensor interfaces */
- for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
- if (bg_ptr->conf->sensors[i].register_cooling)
- bg_ptr->conf->sensors[i].unregister_cooling(bg_ptr, i);
+ for (i = 0; i < bgp->conf->sensor_count; i++) {
+ if (bgp->conf->sensors[i].register_cooling)
+ bgp->conf->sensors[i].unregister_cooling(bgp, i);
- if (bg_ptr->conf->remove_sensor)
- bg_ptr->conf->remove_sensor(bg_ptr, i);
+ if (bgp->conf->remove_sensor)
+ bgp->conf->remove_sensor(bgp, i);
}
- omap_bandgap_power(bg_ptr, false);
+ omap_bandgap_power(bgp, false);
- if (OMAP_BANDGAP_HAS(bg_ptr, CLK_CTRL))
- clk_disable_unprepare(bg_ptr->fclock);
- clk_put(bg_ptr->fclock);
- clk_put(bg_ptr->div_clk);
+ if (OMAP_BANDGAP_HAS(bgp, CLK_CTRL))
+ clk_disable_unprepare(bgp->fclock);
+ clk_put(bgp->fclock);
+ clk_put(bgp->div_clk);
- if (OMAP_BANDGAP_HAS(bg_ptr, TALERT))
- free_irq(bg_ptr->irq, bg_ptr);
+ if (OMAP_BANDGAP_HAS(bgp, TALERT))
+ free_irq(bgp->irq, bgp);
- if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT)) {
- free_irq(gpio_to_irq(bg_ptr->tshut_gpio), NULL);
- gpio_free(bg_ptr->tshut_gpio);
+ if (OMAP_BANDGAP_HAS(bgp, TSHUT)) {
+ free_irq(gpio_to_irq(bgp->tshut_gpio), NULL);
+ gpio_free(bgp->tshut_gpio);
}
return 0;
}
#ifdef CONFIG_PM
-static int omap_bandgap_save_ctxt(struct omap_bandgap *bg_ptr)
+static int omap_bandgap_save_ctxt(struct omap_bandgap *bgp)
{
int i;
- for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
+ for (i = 0; i < bgp->conf->sensor_count; i++) {
struct temp_sensor_registers *tsr;
struct temp_sensor_regval *rval;
- rval = &bg_ptr->conf->sensors[i].regval;
- tsr = bg_ptr->conf->sensors[i].registers;
+ rval = &bgp->conf->sensors[i].regval;
+ tsr = bgp->conf->sensors[i].registers;
- if (OMAP_BANDGAP_HAS(bg_ptr, MODE_CONFIG))
- rval->bg_mode_ctrl = omap_bandgap_readl(bg_ptr,
+ if (OMAP_BANDGAP_HAS(bgp, MODE_CONFIG))
+ rval->bg_mode_ctrl = omap_bandgap_readl(bgp,
tsr->bgap_mode_ctrl);
- if (OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
- rval->bg_counter = omap_bandgap_readl(bg_ptr,
+ if (OMAP_BANDGAP_HAS(bgp, COUNTER))
+ rval->bg_counter = omap_bandgap_readl(bgp,
tsr->bgap_counter);
- if (OMAP_BANDGAP_HAS(bg_ptr, TALERT)) {
- rval->bg_threshold = omap_bandgap_readl(bg_ptr,
+ if (OMAP_BANDGAP_HAS(bgp, TALERT)) {
+ rval->bg_threshold = omap_bandgap_readl(bgp,
tsr->bgap_threshold);
- rval->bg_ctrl = omap_bandgap_readl(bg_ptr,
+ rval->bg_ctrl = omap_bandgap_readl(bgp,
tsr->bgap_mask_ctrl);
}
- if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT_CONFIG))
- rval->tshut_threshold = omap_bandgap_readl(bg_ptr,
+ if (OMAP_BANDGAP_HAS(bgp, TSHUT_CONFIG))
+ rval->tshut_threshold = omap_bandgap_readl(bgp,
tsr->tshut_threshold);
}
return 0;
}
-static int omap_bandgap_restore_ctxt(struct omap_bandgap *bg_ptr)
+static int omap_bandgap_restore_ctxt(struct omap_bandgap *bgp)
{
int i;
- for (i = 0; i < bg_ptr->conf->sensor_count; i++) {
+ for (i = 0; i < bgp->conf->sensor_count; i++) {
struct temp_sensor_registers *tsr;
struct temp_sensor_regval *rval;
u32 val = 0;
- rval = &bg_ptr->conf->sensors[i].regval;
- tsr = bg_ptr->conf->sensors[i].registers;
+ rval = &bgp->conf->sensors[i].regval;
+ tsr = bgp->conf->sensors[i].registers;
- if (OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
- val = omap_bandgap_readl(bg_ptr, tsr->bgap_counter);
+ if (OMAP_BANDGAP_HAS(bgp, COUNTER))
+ val = omap_bandgap_readl(bgp, tsr->bgap_counter);
- if (OMAP_BANDGAP_HAS(bg_ptr, TSHUT_CONFIG))
- omap_bandgap_writel(bg_ptr, rval->tshut_threshold,
+ if (OMAP_BANDGAP_HAS(bgp, TSHUT_CONFIG))
+ omap_bandgap_writel(bgp, rval->tshut_threshold,
tsr->tshut_threshold);
/* Force immediate temperature measurement and update
* of the DTEMP field
*/
- omap_bandgap_force_single_read(bg_ptr, i);
+ omap_bandgap_force_single_read(bgp, i);
- if (OMAP_BANDGAP_HAS(bg_ptr, COUNTER))
- omap_bandgap_writel(bg_ptr, rval->bg_counter,
+ if (OMAP_BANDGAP_HAS(bgp, COUNTER))
+ omap_bandgap_writel(bgp, rval->bg_counter,
tsr->bgap_counter);
- if (OMAP_BANDGAP_HAS(bg_ptr, MODE_CONFIG))
- omap_bandgap_writel(bg_ptr, rval->bg_mode_ctrl,
+ if (OMAP_BANDGAP_HAS(bgp, MODE_CONFIG))
+ omap_bandgap_writel(bgp, rval->bg_mode_ctrl,
tsr->bgap_mode_ctrl);
- if (OMAP_BANDGAP_HAS(bg_ptr, TALERT)) {
- omap_bandgap_writel(bg_ptr, rval->bg_threshold,
+ if (OMAP_BANDGAP_HAS(bgp, TALERT)) {
+ omap_bandgap_writel(bgp, rval->bg_threshold,
tsr->bgap_threshold);
- omap_bandgap_writel(bg_ptr, rval->bg_ctrl,
+ omap_bandgap_writel(bgp, rval->bg_ctrl,
tsr->bgap_mask_ctrl);
}
}
static int omap_bandgap_suspend(struct device *dev)
{
- struct omap_bandgap *bg_ptr = dev_get_drvdata(dev);
+ struct omap_bandgap *bgp = dev_get_drvdata(dev);
int err;
- err = omap_bandgap_save_ctxt(bg_ptr);
- omap_bandgap_power(bg_ptr, false);
+ err = omap_bandgap_save_ctxt(bgp);
+ omap_bandgap_power(bgp, false);
- if (OMAP_BANDGAP_HAS(bg_ptr, CLK_CTRL))
- clk_disable_unprepare(bg_ptr->fclock);
+ if (OMAP_BANDGAP_HAS(bgp, CLK_CTRL))
+ clk_disable_unprepare(bgp->fclock);
return err;
}
static int omap_bandgap_resume(struct device *dev)
{
- struct omap_bandgap *bg_ptr = dev_get_drvdata(dev);
+ struct omap_bandgap *bgp = dev_get_drvdata(dev);
- if (OMAP_BANDGAP_HAS(bg_ptr, CLK_CTRL))
- clk_prepare_enable(bg_ptr->fclock);
+ if (OMAP_BANDGAP_HAS(bgp, CLK_CTRL))
+ clk_prepare_enable(bgp->fclock);
- omap_bandgap_power(bg_ptr, true);
+ omap_bandgap_power(bgp, true);
- return omap_bandgap_restore_ctxt(bg_ptr);
+ return omap_bandgap_restore_ctxt(bgp);
}
static const struct dev_pm_ops omap_bandgap_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(omap_bandgap_suspend,
projects / linux-imx.git / commitdiff