Merge tag 'regulator-fix-v5.4-rc4' of...

Merge tag 'regulator-fix-v5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "There are a few core fixes here around error handling and handling if
  suspend mode configuration and some driver specific fixes here but the
  most important change is the fix to the fixed-regulator DT schema
  conversion introduced during the last merge window.

  That fixes one of the last two errors preventing successful execution
  of "make dt_binding_check" which will be enormously helpful for DT
  schema development"

* tag 'regulator-fix-v5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: qcom-rpmh: Fix PMIC5 BoB min voltage
  regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized
  regulator: lochnagar: Add on_off_delay for VDDCORE
  regulator: ti-abb: Fix timeout in ti_abb_wait_txdone/ti_abb_clear_all_txdone
  regulator: da9062: fix suspend_enable/disable preparation
  dt-bindings: fixed-regulator: fix compatible enum
  regulator: fixed: Prevent NULL pointer dereference when !CONFIG_OF
  regulator: core: make regulator_register() EPROBE_DEFER aware
  regulator: of: fix suspend-min/max-voltage parsing

Documentation/devicetree/bindings/regulator/fixed-regulator.yaml

@@ -30,8 +30,8 @@ if:
 properties:
   compatible:
     enum:
-      - const: regulator-fixed
-      - const: regulator-fixed-clock
+      - regulator-fixed
+      - regulator-fixed-clock
 
   regulator-name: true
 

drivers/regulator/core.c

@@ -5053,6 +5053,19 @@ regulator_register(const struct regulator_desc *regulator_desc,
 
 	init_data = regulator_of_get_init_data(dev, regulator_desc, config,
 					       &rdev->dev.of_node);
+
+	/*
+	 * Sometimes not all resources are probed already so we need to take
+	 * that into account. This happens most the time if the ena_gpiod comes
+	 * from a gpio extender or something else.
+	 */
+	if (PTR_ERR(init_data) == -EPROBE_DEFER) {
+		kfree(config);
+		kfree(rdev);
+		ret = -EPROBE_DEFER;
+		goto rinse;
+	}
+
 	/*
 	 * We need to keep track of any GPIO descriptor coming from the
 	 * device tree until we have handled it over to the core. If the

drivers/regulator/fixed.c

@@ -144,8 +144,7 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct fixed_voltage_config *config;
 	struct fixed_voltage_data *drvdata;
-	const struct fixed_dev_type *drvtype =
-		of_match_device(dev->driver->of_match_table, dev)->data;
+	const struct fixed_dev_type *drvtype = of_device_get_match_data(dev);
 	struct regulator_config cfg = { };
 	enum gpiod_flags gflags;
 	int ret;
@@ -177,7 +176,7 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
 	drvdata->desc.type = REGULATOR_VOLTAGE;
 	drvdata->desc.owner = THIS_MODULE;
 
-	if (drvtype->has_enable_clock) {
+	if (drvtype && drvtype->has_enable_clock) {
 		drvdata->desc.ops = &fixed_voltage_clkenabled_ops;
 
 		drvdata->enable_clock = devm_clk_get(dev, NULL);

drivers/regulator/lochnagar-regulator.c

@@ -210,6 +210,7 @@ static const struct regulator_desc lochnagar_regulators[] = {
 
 		.enable_time = 3000,
 		.ramp_delay = 1000,
+		.off_on_delay = 15000,
 
 		.owner = THIS_MODULE,
 	},

drivers/regulator/of_regulator.c

@@ -231,12 +231,12 @@ static int of_get_regulation_constraints(struct device *dev,
 					"regulator-off-in-suspend"))
 			suspend_state->enabled = DISABLE_IN_SUSPEND;
 
-		if (!of_property_read_u32(np, "regulator-suspend-min-microvolt",
-					  &pval))
+		if (!of_property_read_u32(suspend_np,
+				"regulator-suspend-min-microvolt", &pval))
 			suspend_state->min_uV = pval;
 
-		if (!of_property_read_u32(np, "regulator-suspend-max-microvolt",
-					  &pval))
+		if (!of_property_read_u32(suspend_np,
+				"regulator-suspend-max-microvolt", &pval))
 			suspend_state->max_uV = pval;
 
 		if (!of_property_read_u32(suspend_np,
@@ -445,11 +445,20 @@ struct regulator_init_data *regulator_of_get_init_data(struct device *dev,
 		goto error;
 	}
 
-	if (desc->of_parse_cb && desc->of_parse_cb(child, desc, config)) {
-		dev_err(dev,
-			"driver callback failed to parse DT for regulator %pOFn\n",
-			child);
-		goto error;
+	if (desc->of_parse_cb) {
+		int ret;
+
+		ret = desc->of_parse_cb(child, desc, config);
+		if (ret) {
+			if (ret == -EPROBE_DEFER) {
+				of_node_put(child);
+				return ERR_PTR(-EPROBE_DEFER);
+			}
+			dev_err(dev,
+				"driver callback failed to parse DT for regulator %pOFn\n",
+				child);
+			goto error;
+		}
 	}
 
 	*node = child;

drivers/regulator/pfuze100-regulator.c

@@ -788,7 +788,13 @@ static int pfuze100_regulator_probe(struct i2c_client *client,
 
 		/* SW2~SW4 high bit check and modify the voltage value table */
 		if (i >= sw_check_start && i <= sw_check_end) {
-			regmap_read(pfuze_chip->regmap, desc->vsel_reg, &val);
+			ret = regmap_read(pfuze_chip->regmap,
+						desc->vsel_reg, &val);
+			if (ret) {
+				dev_err(&client->dev, "Fails to read from the register.\n");
+				return ret;
+			}
+
 			if (val & sw_hi) {
 				if (pfuze_chip->chip_id == PFUZE3000 ||
 					pfuze_chip->chip_id == PFUZE3001) {

drivers/regulator/qcom-rpmh-regulator.c

@@ -735,8 +735,8 @@ static const struct rpmh_vreg_hw_data pmic5_hfsmps515 = {
 static const struct rpmh_vreg_hw_data pmic5_bob = {
 	.regulator_type = VRM,
 	.ops = &rpmh_regulator_vrm_bypass_ops,
-	.voltage_range = REGULATOR_LINEAR_RANGE(300000, 0, 135, 32000),
-	.n_voltages = 136,
+	.voltage_range = REGULATOR_LINEAR_RANGE(3000000, 0, 31, 32000),
+	.n_voltages = 32,
 	.pmic_mode_map = pmic_mode_map_pmic5_bob,
 	.of_map_mode = rpmh_regulator_pmic4_bob_of_map_mode,
 };

drivers/regulator/ti-abb-regulator.c

@@ -173,19 +173,14 @@ static int ti_abb_wait_txdone(struct device *dev, struct ti_abb *abb)
 	while (timeout++ <= abb->settling_time) {
 		status = ti_abb_check_txdone(abb);
 		if (status)
-			break;
+			return 0;
 
 		udelay(1);
 	}
 
-	if (timeout > abb->settling_time) {
-		dev_warn_ratelimited(dev,
-				     "%s:TRANXDONE timeout(%duS) int=0x%08x\n",
-				     __func__, timeout, readl(abb->int_base));
-		return -ETIMEDOUT;
-	}
-
-	return 0;
+	dev_warn_ratelimited(dev, "%s:TRANXDONE timeout(%duS) int=0x%08x\n",
+			     __func__, timeout, readl(abb->int_base));
+	return -ETIMEDOUT;
 }
 
 /**
@@ -205,19 +200,14 @@ static int ti_abb_clear_all_txdone(struct device *dev, const struct ti_abb *abb)
 
 		status = ti_abb_check_txdone(abb);
 		if (!status)
-			break;
+			return 0;
 
 		udelay(1);
 	}
 
-	if (timeout > abb->settling_time) {
-		dev_warn_ratelimited(dev,
-				     "%s:TRANXDONE timeout(%duS) int=0x%08x\n",
-				     __func__, timeout, readl(abb->int_base));
-		return -ETIMEDOUT;
-	}
-
-	return 0;
+	dev_warn_ratelimited(dev, "%s:TRANXDONE timeout(%duS) int=0x%08x\n",
+			     __func__, timeout, readl(abb->int_base));
+	return -ETIMEDOUT;
 }
 
 /**