Lines Matching +full:opp +full:- +full:table
1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2016-2017 Texas Instruments Incorporated - https://www.ti.com/
5 * Dave Gerlach <d-gerlach@ti.com>
7 * TI OPP supply driver that provides override into the regulator control
8 * for generic opp core to handle devices with ABB regulator and/or
25 * struct ti_opp_supply_optimum_voltage_table - optimized voltage table
35 * struct ti_opp_supply_data - OMAP specific opp supply data
36 * @vdd_table: Optimized voltage mapping table
39 * @old_supplies: Placeholder for supplies information for old OPP.
40 * @new_supplies: Placeholder for supplies information for new OPP.
53 * struct ti_opp_supply_of_data - device tree match data
54 * @flags: specific type of opp supply
56 * @efuse_voltage_uv: Are the efuse entries in micro-volts? if not, assume
57 * milli-volts.
68 * _store_optimized_voltages() - store optimized voltages
69 * @dev: ti opp supply device for which we need to store info
86 struct ti_opp_supply_optimum_voltage_table *table; in _store_optimized_voltages() local
93 ret = -ENODEV; in _store_optimized_voltages()
97 base = ioremap(res->start, resource_size(res)); in _store_optimized_voltages()
100 ret = -ENOMEM; in _store_optimized_voltages()
104 /* Fetch efuse-settings. */ in _store_optimized_voltages()
105 prop = of_find_property(dev->of_node, "ti,efuse-settings", NULL); in _store_optimized_voltages()
107 dev_err(dev, "No 'ti,efuse-settings' property found\n"); in _store_optimized_voltages()
108 ret = -EINVAL; in _store_optimized_voltages()
112 proplen = prop->length / sizeof(int); in _store_optimized_voltages()
113 data->num_vdd_table = proplen / 2; in _store_optimized_voltages()
114 /* Verify for corrupted OPP entries in dt */ in _store_optimized_voltages()
115 if (data->num_vdd_table * 2 * sizeof(int) != prop->length) { in _store_optimized_voltages()
116 dev_err(dev, "Invalid 'ti,efuse-settings'\n"); in _store_optimized_voltages()
117 ret = -EINVAL; in _store_optimized_voltages()
121 ret = of_property_read_u32(dev->of_node, "ti,absolute-max-voltage-uv", in _store_optimized_voltages()
122 &data->vdd_absolute_max_voltage_uv); in _store_optimized_voltages()
124 dev_err(dev, "ti,absolute-max-voltage-uv is missing\n"); in _store_optimized_voltages()
125 ret = -EINVAL; in _store_optimized_voltages()
129 table = kcalloc(data->num_vdd_table, sizeof(*data->vdd_table), in _store_optimized_voltages()
131 if (!table) { in _store_optimized_voltages()
132 ret = -ENOMEM; in _store_optimized_voltages()
135 data->vdd_table = table; in _store_optimized_voltages()
137 val = prop->value; in _store_optimized_voltages()
138 for (i = 0; i < data->num_vdd_table; i++, table++) { in _store_optimized_voltages()
142 table->reference_uv = be32_to_cpup(val++); in _store_optimized_voltages()
146 tmp &= of_data->efuse_voltage_mask; in _store_optimized_voltages()
147 tmp >>= __ffs(of_data->efuse_voltage_mask); in _store_optimized_voltages()
149 table->optimized_uv = of_data->efuse_voltage_uv ? tmp : in _store_optimized_voltages()
153 i, efuse_offset, table->reference_uv, in _store_optimized_voltages()
154 table->optimized_uv); in _store_optimized_voltages()
158 * Use reference voltage for those - just add debug message in _store_optimized_voltages()
161 if (!table->optimized_uv) { in _store_optimized_voltages()
163 i, efuse_offset, table->reference_uv); in _store_optimized_voltages()
164 table->optimized_uv = table->reference_uv; in _store_optimized_voltages()
174 * _free_optimized_voltages() - free resources for optvoltages
181 kfree(data->vdd_table); in _free_optimized_voltages()
182 data->vdd_table = NULL; in _free_optimized_voltages()
183 data->num_vdd_table = 0; in _free_optimized_voltages()
187 * _get_optimal_vdd_voltage() - Finds optimal voltage for the supply
190 * @reference_uv: reference voltage (OPP voltage) for which we need value
200 struct ti_opp_supply_optimum_voltage_table *table; in _get_optimal_vdd_voltage() local
202 if (!data->num_vdd_table) in _get_optimal_vdd_voltage()
205 table = data->vdd_table; in _get_optimal_vdd_voltage()
206 if (!table) in _get_optimal_vdd_voltage()
207 return -EINVAL; in _get_optimal_vdd_voltage()
209 /* Find a exact match - this list is usually very small */ in _get_optimal_vdd_voltage()
210 for (i = 0; i < data->num_vdd_table; i++, table++) in _get_optimal_vdd_voltage()
211 if (table->reference_uv == reference_uv) in _get_optimal_vdd_voltage()
212 return table->optimized_uv; in _get_optimal_vdd_voltage()
231 vdd_uv = supply->u_volt; in _opp_set_voltage()
236 * are ganged (example if we set the max for an opp as 1.12v, and in _opp_set_voltage()
244 uv_max = supply->u_volt_max; in _opp_set_voltage()
247 vdd_uv < supply->u_volt_min || in _opp_set_voltage()
248 supply->u_volt_min > uv_max) { in _opp_set_voltage()
251 supply->u_volt_min, vdd_uv, uv_max); in _opp_set_voltage()
252 return -EINVAL; in _opp_set_voltage()
256 vdd_uv, supply->u_volt_min, in _opp_set_voltage()
260 supply->u_volt_min, in _opp_set_voltage()
265 reg_name, vdd_uv, supply->u_volt_min, in _opp_set_voltage()
273 /* Do the opp supply transition */
291 /* Fetch supplies and freq information from OPP core */ in ti_opp_config_regulators()
300 new_supply_vdd->u_volt); in ti_opp_config_regulators()
302 if (new_supply_vdd->u_volt_min < vdd_uv) in ti_opp_config_regulators()
303 new_supply_vdd->u_volt_min = vdd_uv; in ti_opp_config_regulators()
334 if (old_supply_vdd->u_volt) { in ti_opp_config_regulators()
364 {.compatible = "ti,omap-opp-supply", .data = &omap_generic_of_data},
365 {.compatible = "ti,omap5-opp-supply", .data = &omap_omap5_of_data},
366 {.compatible = "ti,omap5-core-opp-supply",
374 struct device *dev = &pdev->dev; in ti_opp_supply_probe()
384 return -ENODEV; in ti_opp_supply_probe()
386 if (!match->data) { in ti_opp_supply_probe()
389 return -EINVAL; in ti_opp_supply_probe()
391 of_data = match->data; in ti_opp_supply_probe()
396 if (of_data->flags & OPPDM_EFUSE_CLASS0_OPTIMIZED_VOLTAGE) { in ti_opp_supply_probe()
418 MODULE_DESCRIPTION("Texas Instruments OMAP OPP Supply driver");