platform/x86: hp-wmi: Victus S fan control fixes

index 988a0acc9622..eac39f68d762 100644
@@ -2353,8 +2353,11 @@ static int hp_wmi_apply_fan_settings(struct hp_wmi_hwmon_priv *priv)
 
 	switch (priv->mode) {
 	case PWM_MODE_MAX:
-		if (is_victus_s_thermal_profile())
-			hp_wmi_get_fan_count_userdefine_trigger();
+		if (is_victus_s_thermal_profile()) {
+			ret = hp_wmi_get_fan_count_userdefine_trigger();
+			if (ret < 0)
+				return ret;
+		}
 		ret = hp_wmi_fan_speed_max_set(1);
 		if (ret < 0)
 			return ret;

@@ -2372,7 +2375,9 @@ static int hp_wmi_apply_fan_settings(struct hp_wmi_hwmon_priv *priv)
 		return 0;
 	case PWM_MODE_AUTO:
 		if (is_victus_s_thermal_profile()) {
-			hp_wmi_get_fan_count_userdefine_trigger();
+			ret = hp_wmi_get_fan_count_userdefine_trigger();
+			if (ret < 0)
+				return ret;
 			ret = hp_wmi_fan_speed_max_reset(priv);
 		} else {
 			ret = hp_wmi_fan_speed_max_set(0);

@@ -2385,8 +2390,6 @@ static int hp_wmi_apply_fan_settings(struct hp_wmi_hwmon_priv *priv)
 		/* shouldn't happen */
 		return -EINVAL;
 	}
-
-	return 0;
 }
 
 static umode_t hp_wmi_hwmon_is_visible(const void *data,

@@ -2528,6 +2531,7 @@ static void hp_wmi_hwmon_keep_alive_handler(struct work_struct *work)
 {
 	struct delayed_work *dwork;
 	struct hp_wmi_hwmon_priv *priv;
+	int ret;
 
 	dwork = to_delayed_work(work);
 	priv = container_of(dwork, struct hp_wmi_hwmon_priv, keep_alive_dwork);

@@ -2535,7 +2539,10 @@ static void hp_wmi_hwmon_keep_alive_handler(struct work_struct *work)
 	 * Re-apply the current hwmon context settings.
 	 * NOTE: hp_wmi_apply_fan_settings will handle the re-scheduling.
 	 */
-	hp_wmi_apply_fan_settings(priv);
+	ret = hp_wmi_apply_fan_settings(priv);
+	if (ret)
+		pr_warn_ratelimited("keep-alive failed to refresh fan settings: %d\n",
+				    ret);
 }
 
 static int hp_wmi_setup_fan_settings(struct hp_wmi_hwmon_priv *priv)

@@ -2597,7 +2604,9 @@ static int hp_wmi_hwmon_init(void)
 
 	INIT_DELAYED_WORK(&priv->keep_alive_dwork, hp_wmi_hwmon_keep_alive_handler);
 	platform_set_drvdata(hp_wmi_platform_dev, priv);
-	hp_wmi_apply_fan_settings(priv);
+	ret = hp_wmi_apply_fan_settings(priv);
+	if (ret)
+		dev_warn(dev, "Failed to apply initial fan settings: %d\n", ret);
 
 	return 0;
 }

index eac39f68d762..79d6bc3cd223 100644
@@ -2384,7 +2384,7 @@ static int hp_wmi_apply_fan_settings(struct hp_wmi_hwmon_priv *priv)
 		}
 		if (ret < 0)
 			return ret;
-		cancel_delayed_work_sync(&priv->keep_alive_dwork);
+		cancel_delayed_work(&priv->keep_alive_dwork);
 		return 0;
 	default:
 		/* shouldn't happen */

index 79d6bc3cd223..2932cab9aa78 100644
@@ -2361,8 +2361,8 @@ static int hp_wmi_apply_fan_settings(struct hp_wmi_hwmon_priv *priv)
 		ret = hp_wmi_fan_speed_max_set(1);
 		if (ret < 0)
 			return ret;
-		schedule_delayed_work(&priv->keep_alive_dwork,
-				      secs_to_jiffies(KEEP_ALIVE_DELAY_SECS));
+		mod_delayed_work(system_wq, &priv->keep_alive_dwork,
+				 secs_to_jiffies(KEEP_ALIVE_DELAY_SECS));
 		return 0;
 	case PWM_MODE_MANUAL:
 		if (!is_victus_s_thermal_profile())

@@ -2370,8 +2370,8 @@ static int hp_wmi_apply_fan_settings(struct hp_wmi_hwmon_priv *priv)
 		ret = hp_wmi_fan_speed_set(priv, pwm_to_rpm(priv->pwm, priv));
 		if (ret < 0)
 			return ret;
-		schedule_delayed_work(&priv->keep_alive_dwork,
-				      secs_to_jiffies(KEEP_ALIVE_DELAY_SECS));
+		mod_delayed_work(system_wq, &priv->keep_alive_dwork,
+				 secs_to_jiffies(KEEP_ALIVE_DELAY_SECS));
 		return 0;
 	case PWM_MODE_AUTO:
 		if (is_victus_s_thermal_profile()) {

index 2932cab9aa78..4f49861d3fbe 100644
@@ -455,7 +455,7 @@ enum pwm_modes {
 struct hp_wmi_hwmon_priv {
 	u8 min_rpm;
 	u8 max_rpm;
-	u8 gpu_delta;
+	int gpu_delta;
 	u8 mode;
 	u8 pwm;
 	struct delayed_work keep_alive_dwork;

@@ -2549,8 +2549,8 @@ static int hp_wmi_setup_fan_settings(struct hp_wmi_hwmon_priv *priv)
 {
 	u8 fan_data[128] = { 0 };
 	struct victus_s_fan_table *fan_table;
-	u8 min_rpm, max_rpm, gpu_delta;
-	int ret;
+	u8 min_rpm, max_rpm;
+	int gpu_delta, ret;
 
 	/* Default behaviour on hwmon init is automatic mode */
 	priv->mode = PWM_MODE_AUTO;

index 4f49861d3fbe..470c6e48f8e9 100644
@@ -453,6 +453,7 @@ enum pwm_modes {
 };
 
 struct hp_wmi_hwmon_priv {
+	struct mutex lock;	/* protects mode, pwm */
 	u8 min_rpm;
 	u8 max_rpm;
 	int gpu_delta;

@@ -2422,6 +2423,7 @@ static int hp_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
 {
 	struct hp_wmi_hwmon_priv *priv;
 	int rpm, ret;
+	u8 mode;
 
 	priv = dev_get_drvdata(dev);
 	switch (type) {

@@ -2445,11 +2447,13 @@ static int hp_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
 			*val = rpm_to_pwm(rpm / 100, priv);
 			return 0;
 		}
-		switch (priv->mode) {
+		scoped_guard(mutex, &priv->lock)
+			mode = priv->mode;
+		switch (mode) {
 		case PWM_MODE_MAX:
 		case PWM_MODE_MANUAL:
 		case PWM_MODE_AUTO:
-			*val = priv->mode;
+			*val = mode;
 			return 0;
 		default:
 			/* shouldn't happen */

@@ -2467,6 +2471,7 @@ static int hp_wmi_hwmon_write(struct device *dev, enum hwmon_sensor_types type,
 	int rpm;
 
 	priv = dev_get_drvdata(dev);
+	guard(mutex)(&priv->lock);
 	switch (type) {
 	case hwmon_pwm:
 		if (attr == hwmon_pwm_input) {

@@ -2535,6 +2540,8 @@ static void hp_wmi_hwmon_keep_alive_handler(struct work_struct *work)
 
 	dwork = to_delayed_work(work);
 	priv = container_of(dwork, struct hp_wmi_hwmon_priv, keep_alive_dwork);
+
+	guard(mutex)(&priv->lock);
 	/*
 	 * Re-apply the current hwmon context settings.
 	 * NOTE: hp_wmi_apply_fan_settings will handle the re-scheduling.

@@ -2591,6 +2598,10 @@ static int hp_wmi_hwmon_init(void)
 	if (!priv)
 		return -ENOMEM;
 
+	ret = devm_mutex_init(dev, &priv->lock);
+	if (ret)
+		return ret;
+
 	ret = hp_wmi_setup_fan_settings(priv);
 	if (ret)
 		return ret;