regulator: discard unused struct regulator_init_data handling

struct regulator_init_data and the contained regulation_constraints
are populated from device tree, but unused anywhere. They are not
required for the stpmic driver to operate, so they can just be dropped.

No functional change.

Tested-by: Enrico Jorns <ejo@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20210609084027.13591-1-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 0 insertions, 148 deletions

diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 3e8caa8710..c536a82c43 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -9,145 +9,6 @@
 #include <common.h>
 #include <of.h>
 #include <linux/regulator/of_regulator.h>
-#include <linux/regulator/machine.h>
-
-static int of_get_regulation_constraints(struct device_d *dev,
-					struct device_node *np,
-					struct regulator_init_data **init_data,
-					const struct regulator_desc *desc)
-{
-	struct regulation_constraints *constraints = &(*init_data)->constraints;
-	int ret;
-	u32 pval;
-
-	constraints->name = of_get_property(np, "regulator-name", NULL);
-
-	if (!of_property_read_u32(np, "regulator-min-microvolt", &pval))
-		constraints->min_uV = pval;
-
-	if (!of_property_read_u32(np, "regulator-max-microvolt", &pval))
-		constraints->max_uV = pval;
-
-	/* Voltage change possible? */
-	if (constraints->min_uV != constraints->max_uV)
-		constraints->valid_ops_mask |= REGULATOR_CHANGE_VOLTAGE;
-
-	/* Do we have a voltage range, if so try to apply it? */
-	if (constraints->min_uV && constraints->max_uV)
-		constraints->apply_uV = true;
-
-	if (!of_property_read_u32(np, "regulator-microvolt-offset", &pval))
-		constraints->uV_offset = pval;
-	if (!of_property_read_u32(np, "regulator-min-microamp", &pval))
-		constraints->min_uA = pval;
-	if (!of_property_read_u32(np, "regulator-max-microamp", &pval))
-		constraints->max_uA = pval;
-
-	if (!of_property_read_u32(np, "regulator-input-current-limit-microamp",
-				  &pval))
-		constraints->ilim_uA = pval;
-
-	/* Current change possible? */
-	if (constraints->min_uA != constraints->max_uA)
-		constraints->valid_ops_mask |= REGULATOR_CHANGE_CURRENT;
-
-	constraints->boot_on = of_property_read_bool(np, "regulator-boot-on");
-	constraints->always_on = of_property_read_bool(np, "regulator-always-on");
-	if (!constraints->always_on) /* status change should be possible. */
-		constraints->valid_ops_mask |= REGULATOR_CHANGE_STATUS;
-
-	constraints->pull_down = of_property_read_bool(np, "regulator-pull-down");
-
-	if (of_property_read_bool(np, "regulator-allow-bypass"))
-		constraints->valid_ops_mask |= REGULATOR_CHANGE_BYPASS;
-
-	if (of_property_read_bool(np, "regulator-allow-set-load"))
-		constraints->valid_ops_mask |= REGULATOR_CHANGE_DRMS;
-
-	ret = of_property_read_u32(np, "regulator-ramp-delay", &pval);
-	if (!ret) {
-		if (pval)
-			constraints->ramp_delay = pval;
-		else
-			constraints->ramp_disable = true;
-	}
-
-	ret = of_property_read_u32(np, "regulator-settling-time-us", &pval);
-	if (!ret)
-		constraints->settling_time = pval;
-
-	ret = of_property_read_u32(np, "regulator-settling-time-up-us", &pval);
-	if (!ret)
-		constraints->settling_time_up = pval;
-	if (constraints->settling_time_up && constraints->settling_time) {
-		pr_warn("%pOFn: ambiguous configuration for settling time, ignoring 'regulator-settling-time-up-us'\n",
-			np);
-		constraints->settling_time_up = 0;
-	}
-
-	ret = of_property_read_u32(np, "regulator-settling-time-down-us",
-				   &pval);
-	if (!ret)
-		constraints->settling_time_down = pval;
-	if (constraints->settling_time_down && constraints->settling_time) {
-		pr_warn("%pOFn: ambiguous configuration for settling time, ignoring 'regulator-settling-time-down-us'\n",
-			np);
-		constraints->settling_time_down = 0;
-	}
-
-	ret = of_property_read_u32(np, "regulator-enable-ramp-delay", &pval);
-	if (!ret)
-		constraints->enable_time = pval;
-
-	constraints->soft_start = of_property_read_bool(np,
-					"regulator-soft-start");
-	ret = of_property_read_u32(np, "regulator-active-discharge", &pval);
-	if (!ret) {
-		constraints->active_discharge =
-				(pval) ? REGULATOR_ACTIVE_DISCHARGE_ENABLE :
-					REGULATOR_ACTIVE_DISCHARGE_DISABLE;
-	}
-
-	if (!of_property_read_u32(np, "regulator-system-load", &pval))
-		constraints->system_load = pval;
-
-	if (!of_property_read_u32(np, "regulator-max-step-microvolt",
-				  &pval))
-		constraints->max_uV_step = pval;
-
-	constraints->over_current_protection = of_property_read_bool(np,
-					"regulator-over-current-protection");
-
-	return 0;
-}
-
-/**
- * of_get_regulator_init_data - extract regulator_init_data structure info
- * @dev: device requesting for regulator_init_data
- * @node: regulator device node
- * @desc: regulator description
- *
- * Populates regulator_init_data structure by extracting data from device
- * tree node, returns a pointer to the populated structure or NULL if memory
- * alloc fails.
- */
-struct regulator_init_data *of_get_regulator_init_data(struct device_d *dev,
-					  struct device_node *node,
-					  const struct regulator_desc *desc)
-{
-	struct regulator_init_data *init_data;
-
-	if (!node)
-		return NULL;
-
-	init_data = xzalloc(sizeof(*init_data));
-
-	if (of_get_regulation_constraints(dev, node, &init_data, desc))
-		return NULL;
-
-	return init_data;
-}
-EXPORT_SYMBOL_GPL(of_get_regulator_init_data);
 
 struct devm_of_regulator_matches {
 	struct of_regulator_match *matches;
@@ -192,7 +53,6 @@ int of_regulator_match(struct device_d *dev, struct device_node *node,
 
 	for (i = 0; i < num_matches; i++) {
 		struct of_regulator_match *match = &matches[i];
-		match->init_data = NULL;
 		match->of_node = NULL;
 	}
 
@@ -210,14 +70,6 @@ int of_regulator_match(struct device_d *dev, struct device_node *node,
 			if (strcmp(match->name, name))
 				continue;
 
-			match->init_data = of_get_regulator_init_data(dev, child,
-								      match->desc);
-			if (!match->init_data) {
-				dev_err(dev,
-					"failed to parse DT for regulator %pOFn\n",
-					child);
-				return -EINVAL;
-			}
 			match->of_node = child;
 			count++;
 			break;