platform/x86: alienware-wmi: Add a state container for thermal contro…

…l methods

Refactor all thermal control methods to use the newly defined awcc_priv
state container instead of global variables. While at it, rename
create_thermal_profile() to awcc_platform_profile_init() and introduce
alienware_awcc_setup() to set up the "AWCC" WMI device driver data.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250207154610.13675-4-kuurtb@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

drivers/platform/x86/dell/alienware-wmi.c

@@ -412,6 +412,12 @@ struct wmax_u32_args {
 	u8 arg3;
 };
 
+struct awcc_priv {
+	struct wmi_device *wdev;
+	struct device *ppdev;
+	enum wmax_thermal_mode supported_thermal_profiles[PLATFORM_PROFILE_LAST];
+};
+
 struct alienfx_priv {
 	struct platform_device *pdev;
 	struct led_classdev global_led;
@@ -424,8 +430,6 @@ struct alienfx_platdata {
 	struct wmi_device *wdev;
 };
 
-static enum wmax_thermal_mode supported_thermal_profiles[PLATFORM_PROFILE_LAST];
-
 static u8 interface;
 
 /*
@@ -1060,6 +1064,8 @@ static int thermal_profile_get(struct device *dev,
 static int thermal_profile_set(struct device *dev,
 			       enum platform_profile_option profile)
 {
+	struct awcc_priv *priv = dev_get_drvdata(dev);
+
 	if (quirks->gmode) {
 		u32 gmode_status;
 		int ret;
@@ -1080,12 +1086,13 @@ static int thermal_profile_set(struct device *dev,
 		}
 	}
 
-	return wmax_thermal_control(supported_thermal_profiles[profile]);
+	return wmax_thermal_control(priv->supported_thermal_profiles[profile]);
 }
 
 static int thermal_profile_probe(void *drvdata, unsigned long *choices)
 {
 	enum platform_profile_option profile;
+	struct awcc_priv *priv = drvdata;
 	enum wmax_thermal_mode mode;
 	u8 sys_desc[4];
 	u32 first_mode;
@@ -1114,7 +1121,7 @@ static int thermal_profile_probe(void *drvdata, unsigned long *choices)
 
 		mode = out_data & WMAX_THERMAL_MODE_MASK;
 		profile = wmax_mode_to_platform_profile[mode];
-		supported_thermal_profiles[profile] = out_data;
+		priv->supported_thermal_profiles[profile] = out_data;
 
 		set_bit(profile, choices);
 	}
@@ -1123,7 +1130,7 @@ static int thermal_profile_probe(void *drvdata, unsigned long *choices)
 		return -ENODEV;
 
 	if (quirks->gmode) {
-		supported_thermal_profiles[PLATFORM_PROFILE_PERFORMANCE] =
+		priv->supported_thermal_profiles[PLATFORM_PROFILE_PERFORMANCE] =
 			WMAX_THERMAL_MODE_GMODE;
 
 		set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
@@ -1138,14 +1145,35 @@ static const struct platform_profile_ops awcc_platform_profile_ops = {
 	.profile_set = thermal_profile_set,
 };
 
-static int create_thermal_profile(struct wmi_device *wdev)
+static int awcc_platform_profile_init(struct wmi_device *wdev)
 {
-	struct device *ppdev;
+	struct awcc_priv *priv = dev_get_drvdata(&wdev->dev);
+
+	priv->ppdev = devm_platform_profile_register(&wdev->dev, "alienware-wmi",
+						     priv, &awcc_platform_profile_ops);
+
+	return PTR_ERR_OR_ZERO(priv->ppdev);
+}
 
-	ppdev = devm_platform_profile_register(&wdev->dev, "alienware-wmi",
-					       NULL, &awcc_platform_profile_ops);
+static int alienware_awcc_setup(struct wmi_device *wdev)
+{
+	struct awcc_priv *priv;
+	int ret;
+
+	priv = devm_kzalloc(&wdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
 
-	return PTR_ERR_OR_ZERO(ppdev);
+	priv->wdev = wdev;
+	dev_set_drvdata(&wdev->dev, priv);
+
+	if (quirks->thermal) {
+		ret = awcc_platform_profile_init(wdev);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
 }
 
 /*
@@ -1267,7 +1295,7 @@ static int wmax_wmi_probe(struct wmi_device *wdev, const void *context)
 	int ret;
 
 	if (quirks->thermal)
-		ret = create_thermal_profile(wdev);
+		ret = alienware_awcc_setup(wdev);
 	else
 		ret = alienware_alienfx_setup(&pdata);