hwmon fixes for v5.13-rc2

Fix bugs/regressions in adm9240, ltc2992, pmbus/fsp-3y, and occ drivers,
 plus a minor cleanup in the corsair-psu driver.
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Merge tag 'hwmon-for-v5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "Fix bugs/regressions in adm9240, ltc2992, pmbus/fsp-3y, and occ
  drivers, plus a minor cleanup in the corsair-psu driver"

* tag 'hwmon-for-v5.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (adm9240) Fix writes into inX_max attributes
  hwmon: (ltc2992) Put fwnode in error case during ->probe()
  hwmon: (pmbus/fsp-3y) Fix FSP-3Y YH-5151E non-compliant vout encoding
  hwmon: (occ) Fix poll rate limiting
  hwmon: (corsair-psu) Remove unneeded semicolons

drivers/hwmon/adm9240.c

@@ -485,7 +485,7 @@ static int adm9240_in_write(struct device *dev, u32 attr, int channel, long val)
 		reg = ADM9240_REG_IN_MIN(channel);
 		break;
 	case hwmon_in_max:
-		reg = ADM9240_REG_IN(channel);
+		reg = ADM9240_REG_IN_MAX(channel);
 		break;
 	default:
 		return -EOPNOTSUPP;

drivers/hwmon/corsair-psu.c

@@ -355,7 +355,7 @@ static umode_t corsairpsu_hwmon_power_is_visible(const struct corsairpsu_data *p
 		return 0444;
 	default:
 		return 0;
-	};
+	}
 }
 
 static umode_t corsairpsu_hwmon_in_is_visible(const struct corsairpsu_data *priv, u32 attr,
@@ -376,7 +376,7 @@ static umode_t corsairpsu_hwmon_in_is_visible(const struct corsairpsu_data *priv
 		break;
 	default:
 		break;
-	};
+	}
 
 	return res;
 }

drivers/hwmon/ltc2992.c

@@ -900,11 +900,15 @@ static int ltc2992_parse_dt(struct ltc2992_state *st)
 
 	fwnode_for_each_available_child_node(fwnode, child) {
 		ret = fwnode_property_read_u32(child, "reg", &addr);
-		if (ret < 0)
+		if (ret < 0) {
+			fwnode_handle_put(child);
 			return ret;
+		}
 
-		if (addr > 1)
+		if (addr > 1) {
+			fwnode_handle_put(child);
 			return -EINVAL;
+		}
 
 		ret = fwnode_property_read_u32(child, "shunt-resistor-micro-ohms", &val);
 		if (!ret)

drivers/hwmon/occ/common.c

@@ -217,9 +217,9 @@ int occ_update_response(struct occ *occ)
 		return rc;
 
 	/* limit the maximum rate of polling the OCC */
-	if (time_after(jiffies, occ->last_update + OCC_UPDATE_FREQUENCY)) {
+	if (time_after(jiffies, occ->next_update)) {
 		rc = occ_poll(occ);
-		occ->last_update = jiffies;
+		occ->next_update = jiffies + OCC_UPDATE_FREQUENCY;
 	} else {
 		rc = occ->last_error;
 	}
@@ -1165,6 +1165,7 @@ int occ_setup(struct occ *occ, const char *name)
 		return rc;
 	}
 
+	occ->next_update = jiffies + OCC_UPDATE_FREQUENCY;
 	occ_parse_poll_response(occ);
 
 	rc = occ_setup_sensor_attrs(occ);

drivers/hwmon/occ/common.h

@@ -99,7 +99,7 @@ struct occ {
 	u8 poll_cmd_data;		/* to perform OCC poll command */
 	int (*send_cmd)(struct occ *occ, u8 *cmd);
 
-	unsigned long last_update;
+	unsigned long next_update;
 	struct mutex lock;		/* lock OCC access */
 
 	struct device *hwmon;

drivers/hwmon/pmbus/fsp-3y.c

@@ -57,7 +57,7 @@ static int page_log_to_page_real(int page_log, enum chips chip)
 		case YH5151E_PAGE_12V_LOG:
 			return YH5151E_PAGE_12V_REAL;
 		case YH5151E_PAGE_5V_LOG:
-			return YH5151E_PAGE_5V_LOG;
+			return YH5151E_PAGE_5V_REAL;
 		case YH5151E_PAGE_3V3_LOG:
 			return YH5151E_PAGE_3V3_REAL;
 		}
@@ -103,8 +103,18 @@ static int set_page(struct i2c_client *client, int page_log)
 
 static int fsp3y_read_byte_data(struct i2c_client *client, int page, int reg)
 {
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct fsp3y_data *data = to_fsp3y_data(info);
 	int rv;
 
+	/*
+	 * YH5151-E outputs vout in linear11. The conversion is done when
+	 * reading. Here, we have to inject pmbus_core with the correct
+	 * exponent (it is -6).
+	 */
+	if (data->chip == yh5151e && reg == PMBUS_VOUT_MODE)
+		return 0x1A;
+
 	rv = set_page(client, page);
 	if (rv < 0)
 		return rv;
@@ -114,6 +124,8 @@ static int fsp3y_read_byte_data(struct i2c_client *client, int page, int reg)
 
 static int fsp3y_read_word_data(struct i2c_client *client, int page, int phase, int reg)
 {
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	struct fsp3y_data *data = to_fsp3y_data(info);
 	int rv;
 
 	/*
@@ -144,7 +156,18 @@ static int fsp3y_read_word_data(struct i2c_client *client, int page, int phase,
 	if (rv < 0)
 		return rv;
 
-	return i2c_smbus_read_word_data(client, reg);
+	rv = i2c_smbus_read_word_data(client, reg);
+	if (rv < 0)
+		return rv;
+
+	/*
+	 * YH-5151E is non-compliant and outputs output voltages in linear11
+	 * instead of linear16.
+	 */
+	if (data->chip == yh5151e && reg == PMBUS_READ_VOUT)
+		rv = sign_extend32(rv, 10) & 0xffff;
+
+	return rv;
 }
 
 static struct pmbus_driver_info fsp3y_info[] = {