1 // SPDX-License-Identifier: GPL-2.0
5 #include <linux/mfd/rohm-generic.h>
21 		if (ret != -EINVAL)  in set_dvs_level()
35 		return -EINVAL;  in set_dvs_level()
37 	for (i = 0; i < desc->n_voltages; i++) {  in set_dvs_level()
38 		/* NOTE to next hacker - Does not support pickable ranges */  in set_dvs_level()
39 		if (desc->linear_range_selectors_bitfield)  in set_dvs_level()
40 			return -EINVAL;  in set_dvs_level()
41 		if (desc->n_linear_ranges)  in set_dvs_level()
48 			i <<= ffs(desc->vsel_mask) - 1;  in set_dvs_level()
57 	if (i == desc->n_voltages)  in set_dvs_level()
70 	unsigned int reg, mask, omask, oreg = desc->enable_reg;  in rohm_regulator_set_dvs_levels()
76 		if (dvs->level_map & bit) {  in rohm_regulator_set_dvs_levels()
79 				prop = "rohm,dvs-run-voltage";  in rohm_regulator_set_dvs_levels()
80 				reg = dvs->run_reg;  in rohm_regulator_set_dvs_levels()
81 				mask = dvs->run_mask;  in rohm_regulator_set_dvs_levels()
82 				omask = dvs->run_on_mask;  in rohm_regulator_set_dvs_levels()
85 				prop = "rohm,dvs-idle-voltage";  in rohm_regulator_set_dvs_levels()
86 				reg = dvs->idle_reg;  in rohm_regulator_set_dvs_levels()
87 				mask = dvs->idle_mask;  in rohm_regulator_set_dvs_levels()
88 				omask = dvs->idle_on_mask;  in rohm_regulator_set_dvs_levels()
91 				prop = "rohm,dvs-suspend-voltage";  in rohm_regulator_set_dvs_levels()
92 				reg = dvs->suspend_reg;  in rohm_regulator_set_dvs_levels()
93 				mask = dvs->suspend_mask;  in rohm_regulator_set_dvs_levels()
94 				omask = dvs->suspend_on_mask;  in rohm_regulator_set_dvs_levels()
97 				prop = "rohm,dvs-lpsr-voltage";  in rohm_regulator_set_dvs_levels()
98 				reg = dvs->lpsr_reg;  in rohm_regulator_set_dvs_levels()
99 				mask = dvs->lpsr_mask;  in rohm_regulator_set_dvs_levels()
100 				omask = dvs->lpsr_on_mask;  in rohm_regulator_set_dvs_levels()
103 				prop = "rohm,dvs-snvs-voltage";  in rohm_regulator_set_dvs_levels()
104 				reg = dvs->snvs_reg;  in rohm_regulator_set_dvs_levels()
105 				mask = dvs->snvs_mask;  in rohm_regulator_set_dvs_levels()
106 				omask = dvs->snvs_on_mask;  in rohm_regulator_set_dvs_levels()
109 				return -EINVAL;  in rohm_regulator_set_dvs_levels()
120  * Few ROHM PMIC ICs have constrains on voltage changing:
121  * BD71837 - only buck 1-4 voltages can be changed when they are enabled.
123  * BD96801 - LDO voltage levels can be changed when LDOs are disabled.
128 	if (rdev->desc->ops->is_enabled(rdev))  in rohm_regulator_set_voltage_sel_restricted()
129 		return -EBUSY;  in rohm_regulator_set_voltage_sel_restricted()
137 MODULE_DESCRIPTION("Generic helpers for ROHM PMIC regulator drivers");