diff options
| -rw-r--r-- | drivers/staging/omap-thermal/omap-bandgap.c | 562 | ||||
| -rw-r--r-- | drivers/staging/omap-thermal/omap-bandgap.h | 28 | ||||
| -rw-r--r-- | drivers/staging/omap-thermal/omap-thermal-common.c | 50 | ||||
| -rw-r--r-- | drivers/staging/omap-thermal/omap-thermal.h | 16 |
4 files changed, 327 insertions, 329 deletions
diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c index cb7aa356e963..1189ca731a54 100644 --- a/drivers/staging/omap-thermal/omap-bandgap.c +++ b/drivers/staging/omap-thermal/omap-bandgap.c @@ -46,28 +46,28 @@ /** * 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); } /** @@ -76,38 +76,38 @@ static void omap_bandgap_writel(struct omap_bandgap *bg_ptr, u32 val, u32 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; @@ -115,7 +115,7 @@ exit: /** * 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. @@ -123,16 +123,16 @@ exit: * 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 @@ -141,11 +141,11 @@ static u32 omap_bandgap_read_temp(struct omap_bandgap *bg_ptr, int id) } /* 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; } @@ -165,15 +165,15 @@ static u32 omap_bandgap_read_temp(struct omap_bandgap *bg_ptr, int id) */ 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; @@ -184,7 +184,7 @@ static irqreturn_t omap_bandgap_talert_irq_handler(int irq, void *data) 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 @@ -198,18 +198,18 @@ static irqreturn_t omap_bandgap_talert_irq_handler(int irq, void *data) 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; } @@ -237,7 +237,7 @@ static irqreturn_t omap_bandgap_tshut_irq_handler(int irq, void *data) /** * 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 * @@ -246,10 +246,10 @@ static irqreturn_t omap_bandgap_tshut_irq_handler(int irq, void *data) * 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 */ @@ -258,7 +258,7 @@ int omap_bandgap_adc_to_mcelsius(struct omap_bandgap *bg_ptr, 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; @@ -266,7 +266,7 @@ exit: /** * 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 * @@ -275,11 +275,11 @@ exit: * 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; @@ -307,7 +307,7 @@ exit: /** * 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) @@ -316,7 +316,7 @@ exit: * 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; @@ -325,13 +325,13 @@ int omap_bandgap_add_hyst(struct omap_bandgap *bg_ptr, int adc_val, * 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; @@ -341,24 +341,24 @@ exit: /** * 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; @@ -369,12 +369,12 @@ static void omap_bandgap_unmask_interrupts(struct omap_bandgap *bg_ptr, int id, 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 @@ -387,18 +387,18 @@ static void omap_bandgap_unmask_interrupts(struct omap_bandgap *bg_ptr, int id, * 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) >> @@ -410,11 +410,11 @@ int omap_bandgap_update_alert_threshold(struct omap_bandgap *bg_ptr, int id, 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); } @@ -424,39 +424,39 @@ int omap_bandgap_update_alert_threshold(struct omap_bandgap *bg_ptr, int id, 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; } @@ -467,7 +467,7 @@ exit: /** * _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 @@ -478,7 +478,7 @@ exit: * 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; @@ -486,17 +486,17 @@ int _omap_bandgap_write_threshold(struct omap_bandgap *bg_ptr, int id, int val, 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; @@ -508,13 +508,13 @@ int _omap_bandgap_write_threshold(struct omap_bandgap *bg_ptr, int id, int val, 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; @@ -522,7 +522,7 @@ exit: /** * _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 @@ -532,33 +532,33 @@ exit: * 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; } @@ -573,84 +573,84 @@ 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; @@ -659,53 +659,53 @@ int omap_bandgap_read_update_interval(struct omap_bandgap *bg_ptr, int id, /** * 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; @@ -717,20 +717,20 @@ int omap_bandgap_read_temperature(struct omap_bandgap *bg_ptr, int id, /** * 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; } @@ -738,71 +738,71 @@ int omap_bandgap_set_sensor_data(struct omap_bandgap *bg_ptr, int id, /** * 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; @@ -810,7 +810,7 @@ static int omap_bandgap_set_continuous_mode(struct omap_bandgap *bg_ptr) /** * 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). @@ -820,23 +820,21 @@ static int omap_bandgap_set_continuous_mode(struct omap_bandgap *bg_ptr) * 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; } @@ -846,7 +844,7 @@ static int omap_bandgap_tshut_init(struct omap_bandgap *bg_ptr, 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; @@ -854,7 +852,7 @@ static int omap_bandgap_tshut_init(struct omap_bandgap *bg_ptr, /** * 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). @@ -863,20 +861,20 @@ static int omap_bandgap_tshut_init(struct omap_bandgap *bg_ptr, * 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; @@ -887,7 +885,7 @@ static int omap_bandgap_talert_init(struct omap_bandgap *bg_ptr, /** * 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 @@ -899,7 +897,7 @@ static struct omap_bandgap *omap_bandgap_build(struct platform_device *pdev) { 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; @@ -910,16 +908,16 @@ static struct omap_bandgap *omap_bandgap_build(struct platform_device *pdev) 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 { @@ -930,27 +928,27 @@ static struct omap_bandgap *omap_bandgap_build(struct platform_device *pdev) 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 ***/ @@ -958,18 +956,18 @@ static struct omap_bandgap *omap_bandgap_build(struct platform_device *pdev) 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"); @@ -977,111 +975,111 @@ int omap_bandgap_probe(struct platform_device *pdev) } } - 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); } /* @@ -1089,11 +1087,11 @@ int omap_bandgap_probe(struct platform_device *pdev) * 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; } } @@ -1101,15 +1099,15 @@ int omap_bandgap_probe(struct platform_device *pdev) 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; @@ -1118,102 +1116,102 @@ free_irqs: 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); } } @@ -1223,28 +1221,28 @@ static int omap_bandgap_restore_ctxt(struct omap_bandgap *bg_ptr) 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, diff --git a/drivers/staging/omap-thermal/omap-bandgap.h b/drivers/staging/omap-thermal/omap-bandgap.h index 57005862d4f9..ad83be8ce7e6 100644 --- a/drivers/staging/omap-thermal/omap-bandgap.h +++ b/drivers/staging/omap-thermal/omap-bandgap.h @@ -269,8 +269,8 @@ struct omap_temp_sensor { const int slope_pcb; const int constant_pcb; void *data; - int (*register_cooling)(struct omap_bandgap *bg_ptr, int id); - int (*unregister_cooling)(struct omap_bandgap *bg_ptr, int id); + int (*register_cooling)(struct omap_bandgap *bgp, int id); + int (*unregister_cooling)(struct omap_bandgap *bgp, int id); }; /** @@ -345,27 +345,27 @@ struct omap_bandgap_data { char *fclock_name; char *div_ck_name; int sensor_count; - int (*report_temperature)(struct omap_bandgap *bg_ptr, int id); - int (*expose_sensor)(struct omap_bandgap *bg_ptr, int id, char *domain); - int (*remove_sensor)(struct omap_bandgap *bg_ptr, int id); + int (*report_temperature)(struct omap_bandgap *bgp, int id); + int (*expose_sensor)(struct omap_bandgap *bgp, int id, char *domain); + int (*remove_sensor)(struct omap_bandgap *bgp, int id); /* this needs to be at the end */ struct omap_temp_sensor sensors[]; }; -int omap_bandgap_read_thot(struct omap_bandgap *bg_ptr, int id, int *thot); -int omap_bandgap_write_thot(struct omap_bandgap *bg_ptr, int id, int val); -int omap_bandgap_read_tcold(struct omap_bandgap *bg_ptr, int id, int *tcold); -int omap_bandgap_write_tcold(struct omap_bandgap *bg_ptr, int id, int val); -int omap_bandgap_read_update_interval(struct omap_bandgap *bg_ptr, int id, +int omap_bandgap_read_thot(struct omap_bandgap *bgp, int id, int *thot); +int omap_bandgap_write_thot(struct omap_bandgap *bgp, int id, int val); +int omap_bandgap_read_tcold(struct omap_bandgap *bgp, int id, int *tcold); +int omap_bandgap_write_tcold(struct omap_bandgap *bgp, int id, int val); +int omap_bandgap_read_update_interval(struct omap_bandgap *bgp, int id, int *interval); -int omap_bandgap_write_update_interval(struct omap_bandgap *bg_ptr, int id, +int omap_bandgap_write_update_interval(struct omap_bandgap *bgp, int id, u32 interval); -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); -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); -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); #ifdef CONFIG_OMAP4_THERMAL extern const struct omap_bandgap_data omap4430_data; diff --git a/drivers/staging/omap-thermal/omap-thermal-common.c b/drivers/staging/omap-thermal/omap-thermal-common.c index 8aebc6a12c40..9f7a77b6078d 100644 --- a/drivers/staging/omap-thermal/omap-thermal-common.c +++ b/drivers/staging/omap-thermal/omap-thermal-common.c @@ -39,7 +39,7 @@ struct omap_thermal_data { struct thermal_zone_device *omap_thermal; struct thermal_cooling_device *cool_dev; - struct omap_bandgap *bg_ptr; + struct omap_bandgap *bgp; enum thermal_device_mode mode; struct work_struct thermal_wq; int sensor_id; @@ -78,17 +78,17 @@ static inline int omap_thermal_get_temp(struct thermal_zone_device *thermal, unsigned long *temp) { struct omap_thermal_data *data = thermal->devdata; - struct omap_bandgap *bg_ptr; + struct omap_bandgap *bgp; struct omap_temp_sensor *s; int ret, tmp, pcb_temp, slope, constant; if (!data) return 0; - bg_ptr = data->bg_ptr; - s = &bg_ptr->conf->sensors[data->sensor_id]; + bgp = data->bgp; + s = &bgp->conf->sensors[data->sensor_id]; - ret = omap_bandgap_read_temperature(bg_ptr, data->sensor_id, &tmp); + ret = omap_bandgap_read_temperature(bgp, data->sensor_id, &tmp); if (ret) return ret; @@ -236,32 +236,32 @@ static struct thermal_zone_device_ops omap_thermal_ops = { }; static struct omap_thermal_data -*omap_thermal_build_data(struct omap_bandgap *bg_ptr, int id) +*omap_thermal_build_data(struct omap_bandgap *bgp, int id) { struct omap_thermal_data *data; - data = devm_kzalloc(bg_ptr->dev, sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(bgp->dev, sizeof(*data), GFP_KERNEL); if (!data) { - dev_err(bg_ptr->dev, "kzalloc fail\n"); + dev_err(bgp->dev, "kzalloc fail\n"); return NULL; } data->sensor_id = id; - data->bg_ptr = bg_ptr; + data->bgp = bgp; data->mode = THERMAL_DEVICE_ENABLED; INIT_WORK(&data->thermal_wq, omap_thermal_work); return data; } -int omap_thermal_expose_sensor(struct omap_bandgap *bg_ptr, int id, +int omap_thermal_expose_sensor(struct omap_bandgap *bgp, int id, char *domain) { struct omap_thermal_data *data; - data = omap_bandgap_get_sensor_data(bg_ptr, id); + data = omap_bandgap_get_sensor_data(bgp, id); if (IS_ERR_OR_NULL(data)) - data = omap_thermal_build_data(bg_ptr, id); + data = omap_thermal_build_data(bgp, id); if (!data) return -EINVAL; @@ -273,44 +273,44 @@ int omap_thermal_expose_sensor(struct omap_bandgap *bg_ptr, int id, NULL, FAST_TEMP_MONITORING_RATE, FAST_TEMP_MONITORING_RATE); if (IS_ERR_OR_NULL(data->omap_thermal)) { - dev_err(bg_ptr->dev, "thermal zone device is NULL\n"); + dev_err(bgp->dev, "thermal zone device is NULL\n"); return PTR_ERR(data->omap_thermal); } data->omap_thermal->polling_delay = FAST_TEMP_MONITORING_RATE; - omap_bandgap_set_sensor_data(bg_ptr, id, data); + omap_bandgap_set_sensor_data(bgp, id, data); return 0; } -int omap_thermal_remove_sensor(struct omap_bandgap *bg_ptr, int id) +int omap_thermal_remove_sensor(struct omap_bandgap *bgp, int id) { struct omap_thermal_data *data; - data = omap_bandgap_get_sensor_data(bg_ptr, id); + data = omap_bandgap_get_sensor_data(bgp, id); thermal_zone_device_unregister(data->omap_thermal); return 0; } -int omap_thermal_report_sensor_temperature(struct omap_bandgap *bg_ptr, int id) +int omap_thermal_report_sensor_temperature(struct omap_bandgap *bgp, int id) { struct omap_thermal_data *data; - data = omap_bandgap_get_sensor_data(bg_ptr, id); + data = omap_bandgap_get_sensor_data(bgp, id); schedule_work(&data->thermal_wq); return 0; } -int omap_thermal_register_cpu_cooling(struct omap_bandgap *bg_ptr, int id) +int omap_thermal_register_cpu_cooling(struct omap_bandgap *bgp, int id) { struct omap_thermal_data *data; - data = omap_bandgap_get_sensor_data(bg_ptr, id); + data = omap_bandgap_get_sensor_data(bgp, id); if (IS_ERR_OR_NULL(data)) - data = omap_thermal_build_data(bg_ptr, id); + data = omap_thermal_build_data(bgp, id); if (!data) return -EINVAL; @@ -318,20 +318,20 @@ int omap_thermal_register_cpu_cooling(struct omap_bandgap *bg_ptr, int id) /* Register cooling device */ data->cool_dev = cpufreq_cooling_register(cpu_present_mask); if (IS_ERR_OR_NULL(data->cool_dev)) { - dev_err(bg_ptr->dev, + dev_err(bgp->dev, "Failed to register cpufreq cooling device\n"); return PTR_ERR(data->cool_dev); } - omap_bandgap_set_sensor_data(bg_ptr, id, data); + omap_bandgap_set_sensor_data(bgp, id, data); return 0; } -int omap_thermal_unregister_cpu_cooling(struct omap_bandgap *bg_ptr, int id) +int omap_thermal_unregister_cpu_cooling(struct omap_bandgap *bgp, int id) { struct omap_thermal_data *data; - data = omap_bandgap_get_sensor_data(bg_ptr, id); + data = omap_bandgap_get_sensor_data(bgp, id); cpufreq_cooling_unregister(data->cool_dev); return 0; diff --git a/drivers/staging/omap-thermal/omap-thermal.h b/drivers/staging/omap-thermal/omap-thermal.h index 0dd2184b9663..26cfc8d3495f 100644 --- a/drivers/staging/omap-thermal/omap-thermal.h +++ b/drivers/staging/omap-thermal/omap-thermal.h @@ -74,33 +74,33 @@ ((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER) #ifdef CONFIG_OMAP_THERMAL -int omap_thermal_expose_sensor(struct omap_bandgap *bg_ptr, int id, +int omap_thermal_expose_sensor(struct omap_bandgap *bgp, int id, char *domain); -int omap_thermal_remove_sensor(struct omap_bandgap *bg_ptr, int id); -int omap_thermal_register_cpu_cooling(struct omap_bandgap *bg_ptr, int id); -int omap_thermal_unregister_cpu_cooling(struct omap_bandgap *bg_ptr, int id); +int omap_thermal_remove_sensor(struct omap_bandgap *bgp, int id); +int omap_thermal_register_cpu_cooling(struct omap_bandgap *bgp, int id); +int omap_thermal_unregister_cpu_cooling(struct omap_bandgap *bgp, int id); #else static inline -int omap_thermal_expose_sensor(struct omap_bandgap *bg_ptr, int id, +int omap_thermal_expose_sensor(struct omap_bandgap *bgp, int id, char *domain) { return 0; } static inline -int omap_thermal_remove_sensor(struct omap_bandgap *bg_ptr, int id) +int omap_thermal_remove_sensor(struct omap_bandgap *bgp, int id) { return 0; } static inline -int omap_thermal_register_cpu_cooling(struct omap_bandgap *bg_ptr, int id) +int omap_thermal_register_cpu_cooling(struct omap_bandgap *bgp, int id) { return 0; } static inline -int omap_thermal_unregister_cpu_cooling(struct omap_bandgap *bg_ptr, int id) +int omap_thermal_unregister_cpu_cooling(struct omap_bandgap *bgp, int id) { return 0; } |