32 static int ti_bandgap_force_single_read(struct ti_bandgap *bgp, int id);
44 static u32 ti_bandgap_readl(struct ti_bandgap *bgp, u32 reg)  in ti_bandgap_readl()  argument
46 	return readl(bgp->base + reg);  in ti_bandgap_readl()
57 static void ti_bandgap_writel(struct ti_bandgap *bgp, u32 val, u32 reg)  in ti_bandgap_writel()  argument
59 	writel(val, bgp->base + reg);  in ti_bandgap_writel()
68 #define RMW_BITS(bgp, id, reg, mask, val)			\  argument
73 	t = bgp->conf->sensors[(id)].registers;		\
74 	r = ti_bandgap_readl(bgp, t->reg);			\
77 	ti_bandgap_writel(bgp, r, t->reg);			\
92 static int ti_bandgap_power(struct ti_bandgap *bgp, bool on)  in ti_bandgap_power()  argument
96 	if (!TI_BANDGAP_HAS(bgp, POWER_SWITCH))  in ti_bandgap_power()
99 	for (i = 0; i < bgp->conf->sensor_count; i++)  in ti_bandgap_power()
101 		RMW_BITS(bgp, i, temp_sensor_ctrl, bgap_tempsoff_mask, !on);  in ti_bandgap_power()
121 static u32 ti_errata814_bandgap_read_temp(struct ti_bandgap *bgp,  u32 reg)  in ti_errata814_bandgap_read_temp()  argument
125 	val1 = ti_bandgap_readl(bgp, reg);  in ti_errata814_bandgap_read_temp()
126 	val2 = ti_bandgap_readl(bgp, reg);  in ti_errata814_bandgap_read_temp()
133 	return ti_bandgap_readl(bgp, reg);  in ti_errata814_bandgap_read_temp()
148 static u32 ti_bandgap_read_temp(struct ti_bandgap *bgp, int id)  in ti_bandgap_read_temp()  argument
153 	tsr = bgp->conf->sensors[id].registers;  in ti_bandgap_read_temp()
156 	if (TI_BANDGAP_HAS(bgp, FREEZE_BIT)) {  in ti_bandgap_read_temp()
157 		RMW_BITS(bgp, id, bgap_mask_ctrl, mask_freeze_mask, 1);  in ti_bandgap_read_temp()
166 	if (TI_BANDGAP_HAS(bgp, ERRATA_814))  in ti_bandgap_read_temp()
167 		temp = ti_errata814_bandgap_read_temp(bgp, reg);  in ti_bandgap_read_temp()
169 		temp = ti_bandgap_readl(bgp, reg);  in ti_bandgap_read_temp()
173 	if (TI_BANDGAP_HAS(bgp, FREEZE_BIT))  in ti_bandgap_read_temp()
174 		RMW_BITS(bgp, id, bgap_mask_ctrl, mask_freeze_mask, 0);  in ti_bandgap_read_temp()
196 	struct ti_bandgap *bgp = data;  in ti_bandgap_talert_irq_handler()  local
201 	spin_lock(&bgp->lock);  in ti_bandgap_talert_irq_handler()
202 	for (i = 0; i < bgp->conf->sensor_count; i++) {  in ti_bandgap_talert_irq_handler()
203 		tsr = bgp->conf->sensors[i].registers;  in ti_bandgap_talert_irq_handler()
204 		ctrl = ti_bandgap_readl(bgp, tsr->bgap_status);  in ti_bandgap_talert_irq_handler()
215 		ctrl = ti_bandgap_readl(bgp, tsr->bgap_mask_ctrl);  in ti_bandgap_talert_irq_handler()
229 		ti_bandgap_writel(bgp, ctrl, tsr->bgap_mask_ctrl);  in ti_bandgap_talert_irq_handler()
231 		dev_dbg(bgp->dev,  in ti_bandgap_talert_irq_handler()
233 			__func__, bgp->conf->sensors[i].domain,  in ti_bandgap_talert_irq_handler()
237 		if (bgp->conf->report_temperature)  in ti_bandgap_talert_irq_handler()
238 			bgp->conf->report_temperature(bgp, i);  in ti_bandgap_talert_irq_handler()
240 	spin_unlock(&bgp->lock);  in ti_bandgap_talert_irq_handler()
282 int ti_bandgap_adc_to_mcelsius(struct ti_bandgap *bgp, int adc_val, int *t)  in ti_bandgap_adc_to_mcelsius()  argument
284 	const struct ti_bandgap_data *conf = bgp->conf;  in ti_bandgap_adc_to_mcelsius()
290 	*t = bgp->conf->conv_table[adc_val - conf->adc_start_val];  in ti_bandgap_adc_to_mcelsius()
305 static inline int ti_bandgap_validate(struct ti_bandgap *bgp, int id)  in ti_bandgap_validate()  argument
307 	if (!bgp || IS_ERR(bgp)) {  in ti_bandgap_validate()
312 	if ((id < 0) || (id >= bgp->conf->sensor_count)) {  in ti_bandgap_validate()
313 		dev_err(bgp->dev, "%s: sensor id out of range (%d)\n",  in ti_bandgap_validate()
327 static void ti_bandgap_read_counter(struct ti_bandgap *bgp, int id,  in ti_bandgap_read_counter()  argument
333 	tsr = bgp->conf->sensors[id].registers;  in ti_bandgap_read_counter()
334 	time = ti_bandgap_readl(bgp, tsr->bgap_counter);  in ti_bandgap_read_counter()
337 	time = time * 1000 / bgp->clk_rate;  in ti_bandgap_read_counter()
347 static void ti_bandgap_read_counter_delay(struct ti_bandgap *bgp, int id,  in ti_bandgap_read_counter_delay()  argument
353 	tsr = bgp->conf->sensors[id].registers;  in ti_bandgap_read_counter_delay()
355 	reg_val = ti_bandgap_readl(bgp, tsr->bgap_mask_ctrl);  in ti_bandgap_read_counter_delay()
378 		dev_warn(bgp->dev, "Wrong counter delay value read from register %X",  in ti_bandgap_read_counter_delay()
391 int ti_bandgap_read_update_interval(struct ti_bandgap *bgp, int id,  in ti_bandgap_read_update_interval()  argument
396 	ret = ti_bandgap_validate(bgp, id);  in ti_bandgap_read_update_interval()
400 	if (!TI_BANDGAP_HAS(bgp, COUNTER) &&  in ti_bandgap_read_update_interval()
401 	    !TI_BANDGAP_HAS(bgp, COUNTER_DELAY)) {  in ti_bandgap_read_update_interval()
406 	if (TI_BANDGAP_HAS(bgp, COUNTER)) {  in ti_bandgap_read_update_interval()
407 		ti_bandgap_read_counter(bgp, id, interval);  in ti_bandgap_read_update_interval()
411 	ti_bandgap_read_counter_delay(bgp, id, interval);  in ti_bandgap_read_update_interval()
424 static int ti_bandgap_write_counter_delay(struct ti_bandgap *bgp, int id,  in ti_bandgap_write_counter_delay()  argument
449 		dev_warn(bgp->dev, "Delay %d ms is not supported\n", interval);  in ti_bandgap_write_counter_delay()
453 	spin_lock(&bgp->lock);  in ti_bandgap_write_counter_delay()
454 	RMW_BITS(bgp, id, bgap_mask_ctrl, mask_counter_delay_mask, rval);  in ti_bandgap_write_counter_delay()
455 	spin_unlock(&bgp->lock);  in ti_bandgap_write_counter_delay()
466 static void ti_bandgap_write_counter(struct ti_bandgap *bgp, int id,  in ti_bandgap_write_counter()  argument
469 	interval = interval * bgp->clk_rate / 1000;  in ti_bandgap_write_counter()
470 	spin_lock(&bgp->lock);  in ti_bandgap_write_counter()
471 	RMW_BITS(bgp, id, bgap_counter, counter_mask, interval);  in ti_bandgap_write_counter()
472 	spin_unlock(&bgp->lock);  in ti_bandgap_write_counter()
483 int ti_bandgap_write_update_interval(struct ti_bandgap *bgp,  in ti_bandgap_write_update_interval()  argument
486 	int ret = ti_bandgap_validate(bgp, id);  in ti_bandgap_write_update_interval()
490 	if (!TI_BANDGAP_HAS(bgp, COUNTER) &&  in ti_bandgap_write_update_interval()
491 	    !TI_BANDGAP_HAS(bgp, COUNTER_DELAY)) {  in ti_bandgap_write_update_interval()
496 	if (TI_BANDGAP_HAS(bgp, COUNTER)) {  in ti_bandgap_write_update_interval()
497 		ti_bandgap_write_counter(bgp, id, interval);  in ti_bandgap_write_update_interval()
501 	ret = ti_bandgap_write_counter_delay(bgp, id, interval);  in ti_bandgap_write_update_interval()
514 int ti_bandgap_read_temperature(struct ti_bandgap *bgp, int id,  in ti_bandgap_read_temperature()  argument
520 	ret = ti_bandgap_validate(bgp, id);  in ti_bandgap_read_temperature()
524 	if (!TI_BANDGAP_HAS(bgp, MODE_CONFIG)) {  in ti_bandgap_read_temperature()
525 		ret = ti_bandgap_force_single_read(bgp, id);  in ti_bandgap_read_temperature()
530 	spin_lock(&bgp->lock);  in ti_bandgap_read_temperature()
531 	temp = ti_bandgap_read_temp(bgp, id);  in ti_bandgap_read_temperature()
532 	spin_unlock(&bgp->lock);  in ti_bandgap_read_temperature()
534 	ret = ti_bandgap_adc_to_mcelsius(bgp, temp, &temp);  in ti_bandgap_read_temperature()
552 int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data)  in ti_bandgap_set_sensor_data()  argument
554 	int ret = ti_bandgap_validate(bgp, id);  in ti_bandgap_set_sensor_data()
558 	bgp->regval[id].data = data;  in ti_bandgap_set_sensor_data()
571 void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id)  in ti_bandgap_get_sensor_data()  argument
573 	int ret = ti_bandgap_validate(bgp, id);  in ti_bandgap_get_sensor_data()
577 	return bgp->regval[id].data;  in ti_bandgap_get_sensor_data()
593 ti_bandgap_force_single_read(struct ti_bandgap *bgp, int id)  in ti_bandgap_force_single_read()  argument
599 	if (TI_BANDGAP_HAS(bgp, MODE_CONFIG))  in ti_bandgap_force_single_read()
600 		RMW_BITS(bgp, id, bgap_mode_ctrl, mode_ctrl_mask, 0);  in ti_bandgap_force_single_read()
603 	RMW_BITS(bgp, id, temp_sensor_ctrl, bgap_soc_mask, 1);  in ti_bandgap_force_single_read()
606 	tsr = bgp->conf->sensors[id].registers;  in ti_bandgap_force_single_read()
609 		if (ti_bandgap_readl(bgp, tsr->temp_sensor_ctrl) &  in ti_bandgap_force_single_read()
615 	RMW_BITS(bgp, id, temp_sensor_ctrl, bgap_soc_mask, 0);  in ti_bandgap_force_single_read()
620 		if (!(ti_bandgap_readl(bgp, tsr->temp_sensor_ctrl) &  in ti_bandgap_force_single_read()
639 static int ti_bandgap_set_continuous_mode(struct ti_bandgap *bgp)  in ti_bandgap_set_continuous_mode()  argument
643 	for (i = 0; i < bgp->conf->sensor_count; i++) {  in ti_bandgap_set_continuous_mode()
645 		ti_bandgap_force_single_read(bgp, i);  in ti_bandgap_set_continuous_mode()
646 		RMW_BITS(bgp, i, bgap_mode_ctrl, mode_ctrl_mask, 1);  in ti_bandgap_set_continuous_mode()
667 int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend)  in ti_bandgap_get_trend()  argument
673 	ret = ti_bandgap_validate(bgp, id);  in ti_bandgap_get_trend()
677 	if (!TI_BANDGAP_HAS(bgp, HISTORY_BUFFER) ||  in ti_bandgap_get_trend()
678 	    !TI_BANDGAP_HAS(bgp, FREEZE_BIT)) {  in ti_bandgap_get_trend()
683 	spin_lock(&bgp->lock);  in ti_bandgap_get_trend()
685 	tsr = bgp->conf->sensors[id].registers;  in ti_bandgap_get_trend()
688 	RMW_BITS(bgp, id, bgap_mask_ctrl, mask_freeze_mask, 1);  in ti_bandgap_get_trend()
693 	temp1 = ti_bandgap_readl(bgp, reg1);  in ti_bandgap_get_trend()
696 	temp2 = ti_bandgap_readl(bgp, reg2);  in ti_bandgap_get_trend()
700 	ret = ti_bandgap_adc_to_mcelsius(bgp, temp1, &t1);  in ti_bandgap_get_trend()
704 	ret = ti_bandgap_adc_to_mcelsius(bgp, temp2, &t2);  in ti_bandgap_get_trend()
709 	ret = ti_bandgap_read_update_interval(bgp, id, &interval);  in ti_bandgap_get_trend()
719 	dev_dbg(bgp->dev, "The temperatures are t1 = %d and t2 = %d and trend =%d\n",  in ti_bandgap_get_trend()
723 	RMW_BITS(bgp, id, bgap_mask_ctrl, mask_freeze_mask, 0);  in ti_bandgap_get_trend()
724 	spin_unlock(&bgp->lock);  in ti_bandgap_get_trend()
743 static int ti_bandgap_tshut_init(struct ti_bandgap *bgp,  in ti_bandgap_tshut_init()  argument
746 	int gpio_nr = bgp->tshut_gpio;  in ti_bandgap_tshut_init()
752 		dev_err(bgp->dev, "Could not request for TSHUT GPIO:%i\n", 86);  in ti_bandgap_tshut_init()
757 		dev_err(bgp->dev, "Cannot set input TSHUT GPIO %d\n", gpio_nr);  in ti_bandgap_tshut_init()
765 		dev_err(bgp->dev, "request irq failed for TSHUT");  in ti_bandgap_tshut_init()
784 static int ti_bandgap_talert_init(struct ti_bandgap *bgp,  in ti_bandgap_talert_init()  argument
789 	bgp->irq = platform_get_irq(pdev, 0);  in ti_bandgap_talert_init()
790 	if (bgp->irq < 0) {  in ti_bandgap_talert_init()
792 		return bgp->irq;  in ti_bandgap_talert_init()
794 	ret = request_threaded_irq(bgp->irq, NULL,  in ti_bandgap_talert_init()
797 				   "talert", bgp);  in ti_bandgap_talert_init()
822 	struct ti_bandgap *bgp;  in ti_bandgap_build()  local
832 	bgp = devm_kzalloc(&pdev->dev, sizeof(*bgp), GFP_KERNEL);  in ti_bandgap_build()
833 	if (!bgp)  in ti_bandgap_build()
838 		bgp->conf = of_id->data;  in ti_bandgap_build()
841 	bgp->regval = devm_kcalloc(&pdev->dev, bgp->conf->sensor_count,  in ti_bandgap_build()
842 				   sizeof(*bgp->regval), GFP_KERNEL);  in ti_bandgap_build()
843 	if (!bgp->regval)  in ti_bandgap_build()
855 			bgp->base = chunk;  in ti_bandgap_build()
862 	if (TI_BANDGAP_HAS(bgp, TSHUT)) {  in ti_bandgap_build()
863 		bgp->tshut_gpio = of_get_gpio(node, 0);  in ti_bandgap_build()
864 		if (!gpio_is_valid(bgp->tshut_gpio)) {  in ti_bandgap_build()
866 				bgp->tshut_gpio);  in ti_bandgap_build()
871 	return bgp;  in ti_bandgap_build()
879 	struct ti_bandgap *bgp;  in ti_bandgap_probe()  local
882 	bgp = ti_bandgap_build(pdev);  in ti_bandgap_probe()
883 	if (IS_ERR(bgp)) {  in ti_bandgap_probe()
885 		return PTR_ERR(bgp);  in ti_bandgap_probe()
887 	bgp->dev = &pdev->dev;  in ti_bandgap_probe()
889 	if (TI_BANDGAP_HAS(bgp, UNRELIABLE))  in ti_bandgap_probe()
893 	if (TI_BANDGAP_HAS(bgp, TSHUT)) {  in ti_bandgap_probe()
894 		ret = ti_bandgap_tshut_init(bgp, pdev);  in ti_bandgap_probe()
902 	bgp->fclock = clk_get(NULL, bgp->conf->fclock_name);  in ti_bandgap_probe()
903 	if (IS_ERR(bgp->fclock)) {  in ti_bandgap_probe()
905 		ret = PTR_ERR(bgp->fclock);  in ti_bandgap_probe()
909 	bgp->div_clk = clk_get(NULL, bgp->conf->div_ck_name);  in ti_bandgap_probe()
910 	if (IS_ERR(bgp->div_clk)) {  in ti_bandgap_probe()
912 		ret = PTR_ERR(bgp->div_clk);  in ti_bandgap_probe()
916 	for (i = 0; i < bgp->conf->sensor_count; i++) {  in ti_bandgap_probe()
920 		tsr = bgp->conf->sensors[i].registers;  in ti_bandgap_probe()
926 		val = ti_bandgap_readl(bgp, tsr->bgap_efuse);  in ti_bandgap_probe()
932 	clk_rate = clk_round_rate(bgp->div_clk,  in ti_bandgap_probe()
933 				  bgp->conf->sensors[0].ts_data->max_freq);  in ti_bandgap_probe()
934 	if (clk_rate < bgp->conf->sensors[0].ts_data->min_freq ||  in ti_bandgap_probe()
941 	ret = clk_set_rate(bgp->div_clk, clk_rate);  in ti_bandgap_probe()
945 	bgp->clk_rate = clk_rate;  in ti_bandgap_probe()
946 	if (TI_BANDGAP_HAS(bgp, CLK_CTRL))  in ti_bandgap_probe()
947 		clk_prepare_enable(bgp->fclock);  in ti_bandgap_probe()
950 	spin_lock_init(&bgp->lock);  in ti_bandgap_probe()
951 	bgp->dev = &pdev->dev;  in ti_bandgap_probe()
952 	platform_set_drvdata(pdev, bgp);  in ti_bandgap_probe()
954 	ti_bandgap_power(bgp, true);  in ti_bandgap_probe()
957 	if (TI_BANDGAP_HAS(bgp, COUNTER))  in ti_bandgap_probe()
958 		for (i = 0; i < bgp->conf->sensor_count; i++)  in ti_bandgap_probe()
959 			RMW_BITS(bgp, i, bgap_counter, counter_mask, 1);  in ti_bandgap_probe()
962 	for (i = 0; i < bgp->conf->sensor_count; i++) {  in ti_bandgap_probe()
965 		ts_data = bgp->conf->sensors[i].ts_data;  in ti_bandgap_probe()
967 		if (TI_BANDGAP_HAS(bgp, TALERT)) {  in ti_bandgap_probe()
969 			RMW_BITS(bgp, i, bgap_threshold,  in ti_bandgap_probe()
971 			RMW_BITS(bgp, i, bgap_threshold,  in ti_bandgap_probe()
974 			RMW_BITS(bgp, i, bgap_mask_ctrl, mask_hot_mask, 1);  in ti_bandgap_probe()
975 			RMW_BITS(bgp, i, bgap_mask_ctrl, mask_cold_mask, 1);  in ti_bandgap_probe()
978 		if (TI_BANDGAP_HAS(bgp, TSHUT_CONFIG)) {  in ti_bandgap_probe()
980 			RMW_BITS(bgp, i, tshut_threshold,  in ti_bandgap_probe()
982 			RMW_BITS(bgp, i, tshut_threshold,  in ti_bandgap_probe()
987 	if (TI_BANDGAP_HAS(bgp, MODE_CONFIG))  in ti_bandgap_probe()
988 		ti_bandgap_set_continuous_mode(bgp);  in ti_bandgap_probe()
991 	if (TI_BANDGAP_HAS(bgp, COUNTER))  in ti_bandgap_probe()
992 		for (i = 0; i < bgp->conf->sensor_count; i++)  in ti_bandgap_probe()
993 			RMW_BITS(bgp, i, bgap_counter, counter_mask,  in ti_bandgap_probe()
994 				 bgp->clk_rate / 4);  in ti_bandgap_probe()
997 	for (i = 0; i < bgp->conf->sensor_count; i++) {  in ti_bandgap_probe()
1000 		if (bgp->conf->sensors[i].register_cooling) {  in ti_bandgap_probe()
1001 			ret = bgp->conf->sensors[i].register_cooling(bgp, i);  in ti_bandgap_probe()
1006 		if (bgp->conf->expose_sensor) {  in ti_bandgap_probe()
1007 			domain = bgp->conf->sensors[i].domain;  in ti_bandgap_probe()
1008 			ret = bgp->conf->expose_sensor(bgp, i, domain);  in ti_bandgap_probe()
1019 	if (TI_BANDGAP_HAS(bgp, TALERT)) {  in ti_bandgap_probe()
1020 		ret = ti_bandgap_talert_init(bgp, pdev);  in ti_bandgap_probe()
1023 			i = bgp->conf->sensor_count;  in ti_bandgap_probe()
1031 	if (bgp->conf->sensors[i].unregister_cooling)  in ti_bandgap_probe()
1032 		bgp->conf->sensors[i].unregister_cooling(bgp, i);  in ti_bandgap_probe()
1035 		if (bgp->conf->sensors[i].unregister_cooling)  in ti_bandgap_probe()
1036 			bgp->conf->sensors[i].unregister_cooling(bgp, i);  in ti_bandgap_probe()
1037 		if (bgp->conf->remove_sensor)  in ti_bandgap_probe()
1038 			bgp->conf->remove_sensor(bgp, i);  in ti_bandgap_probe()
1040 	ti_bandgap_power(bgp, false);  in ti_bandgap_probe()
1042 	if (TI_BANDGAP_HAS(bgp, CLK_CTRL))  in ti_bandgap_probe()
1043 		clk_disable_unprepare(bgp->fclock);  in ti_bandgap_probe()
1045 	clk_put(bgp->div_clk);  in ti_bandgap_probe()
1047 	clk_put(bgp->fclock);  in ti_bandgap_probe()
1049 	if (TI_BANDGAP_HAS(bgp, TSHUT)) {  in ti_bandgap_probe()
1050 		free_irq(gpio_to_irq(bgp->tshut_gpio), NULL);  in ti_bandgap_probe()
1051 		gpio_free(bgp->tshut_gpio);  in ti_bandgap_probe()
1060 	struct ti_bandgap *bgp = platform_get_drvdata(pdev);  in ti_bandgap_remove()  local
1064 	for (i = 0; i < bgp->conf->sensor_count; i++) {  in ti_bandgap_remove()
1065 		if (bgp->conf->sensors[i].unregister_cooling)  in ti_bandgap_remove()
1066 			bgp->conf->sensors[i].unregister_cooling(bgp, i);  in ti_bandgap_remove()
1068 		if (bgp->conf->remove_sensor)  in ti_bandgap_remove()
1069 			bgp->conf->remove_sensor(bgp, i);  in ti_bandgap_remove()
1072 	ti_bandgap_power(bgp, false);  in ti_bandgap_remove()
1074 	if (TI_BANDGAP_HAS(bgp, CLK_CTRL))  in ti_bandgap_remove()
1075 		clk_disable_unprepare(bgp->fclock);  in ti_bandgap_remove()
1076 	clk_put(bgp->fclock);  in ti_bandgap_remove()
1077 	clk_put(bgp->div_clk);  in ti_bandgap_remove()
1079 	if (TI_BANDGAP_HAS(bgp, TALERT))  in ti_bandgap_remove()
1080 		free_irq(bgp->irq, bgp);  in ti_bandgap_remove()
1082 	if (TI_BANDGAP_HAS(bgp, TSHUT)) {  in ti_bandgap_remove()
1083 		free_irq(gpio_to_irq(bgp->tshut_gpio), NULL);  in ti_bandgap_remove()
1084 		gpio_free(bgp->tshut_gpio);  in ti_bandgap_remove()
1091 static int ti_bandgap_save_ctxt(struct ti_bandgap *bgp)  in ti_bandgap_save_ctxt()  argument
1095 	for (i = 0; i < bgp->conf->sensor_count; i++) {  in ti_bandgap_save_ctxt()
1099 		rval = &bgp->regval[i];  in ti_bandgap_save_ctxt()
1100 		tsr = bgp->conf->sensors[i].registers;  in ti_bandgap_save_ctxt()
1102 		if (TI_BANDGAP_HAS(bgp, MODE_CONFIG))  in ti_bandgap_save_ctxt()
1103 			rval->bg_mode_ctrl = ti_bandgap_readl(bgp,  in ti_bandgap_save_ctxt()
1105 		if (TI_BANDGAP_HAS(bgp, COUNTER))  in ti_bandgap_save_ctxt()
1106 			rval->bg_counter = ti_bandgap_readl(bgp,  in ti_bandgap_save_ctxt()
1108 		if (TI_BANDGAP_HAS(bgp, TALERT)) {  in ti_bandgap_save_ctxt()
1109 			rval->bg_threshold = ti_bandgap_readl(bgp,  in ti_bandgap_save_ctxt()
1111 			rval->bg_ctrl = ti_bandgap_readl(bgp,  in ti_bandgap_save_ctxt()
1115 		if (TI_BANDGAP_HAS(bgp, TSHUT_CONFIG))  in ti_bandgap_save_ctxt()
1116 			rval->tshut_threshold = ti_bandgap_readl(bgp,  in ti_bandgap_save_ctxt()
1123 static int ti_bandgap_restore_ctxt(struct ti_bandgap *bgp)  in ti_bandgap_restore_ctxt()  argument
1127 	for (i = 0; i < bgp->conf->sensor_count; i++) {  in ti_bandgap_restore_ctxt()
1132 		rval = &bgp->regval[i];  in ti_bandgap_restore_ctxt()
1133 		tsr = bgp->conf->sensors[i].registers;  in ti_bandgap_restore_ctxt()
1135 		if (TI_BANDGAP_HAS(bgp, COUNTER))  in ti_bandgap_restore_ctxt()
1136 			val = ti_bandgap_readl(bgp, tsr->bgap_counter);  in ti_bandgap_restore_ctxt()
1138 		if (TI_BANDGAP_HAS(bgp, TSHUT_CONFIG))  in ti_bandgap_restore_ctxt()
1139 			ti_bandgap_writel(bgp, rval->tshut_threshold,  in ti_bandgap_restore_ctxt()
1144 		ti_bandgap_force_single_read(bgp, i);  in ti_bandgap_restore_ctxt()
1146 		if (TI_BANDGAP_HAS(bgp, COUNTER))  in ti_bandgap_restore_ctxt()
1147 			ti_bandgap_writel(bgp, rval->bg_counter,  in ti_bandgap_restore_ctxt()
1149 		if (TI_BANDGAP_HAS(bgp, MODE_CONFIG))  in ti_bandgap_restore_ctxt()
1150 			ti_bandgap_writel(bgp, rval->bg_mode_ctrl,  in ti_bandgap_restore_ctxt()
1152 		if (TI_BANDGAP_HAS(bgp, TALERT)) {  in ti_bandgap_restore_ctxt()
1153 			ti_bandgap_writel(bgp, rval->bg_threshold,  in ti_bandgap_restore_ctxt()
1155 			ti_bandgap_writel(bgp, rval->bg_ctrl,  in ti_bandgap_restore_ctxt()
1165 	struct ti_bandgap *bgp = dev_get_drvdata(dev);  in ti_bandgap_suspend()  local
1168 	err = ti_bandgap_save_ctxt(bgp);  in ti_bandgap_suspend()
1169 	ti_bandgap_power(bgp, false);  in ti_bandgap_suspend()
1171 	if (TI_BANDGAP_HAS(bgp, CLK_CTRL))  in ti_bandgap_suspend()
1172 		clk_disable_unprepare(bgp->fclock);  in ti_bandgap_suspend()
1179 	struct ti_bandgap *bgp = dev_get_drvdata(dev);  in ti_bandgap_resume()  local
1181 	if (TI_BANDGAP_HAS(bgp, CLK_CTRL))  in ti_bandgap_resume()
1182 		clk_prepare_enable(bgp->fclock);  in ti_bandgap_resume()
1184 	ti_bandgap_power(bgp, true);  in ti_bandgap_resume()
1186 	return ti_bandgap_restore_ctxt(bgp);  in ti_bandgap_resume()