linux-kernel - [PATCH v4 03/14] platform/x86: alienware-wmi: Add a state container for thermal control methods

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Message-ID: <20250117081347.8573-4-kuurtb@gmail.com>
Date: Fri, 17 Jan 2025 03:13:36 -0500
From: Kurt Borja <kuurtb@...il.com>
To: platform-driver-x86@...r.kernel.org
Cc: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	"Armin Wolf" <W_Armin@....de>,
	"Mario Limonciello" <mario.limonciello@....com>,
	"Hans de Goede" <hdegoede@...hat.com>,
	Dell.Client.Kernel@...l.com,
	linux-kernel@...r.kernel.org,
	Kurt Borja <kuurtb@...il.com>
Subject: [PATCH v4 03/14] platform/x86: alienware-wmi: Add a state container for thermal control 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 alienware_awcc_setup and use it to set up the
WMI device "awcc" driver data.

Reviewed-by: Armin Wolf <W_Armin@....de>
Signed-off-by: Kurt Borja <kuurtb@...il.com>
---
 drivers/platform/x86/dell/alienware-wmi.c | 36 ++++++++++++++++-------
 1 file changed, 25 insertions(+), 11 deletions(-)

diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c
index e1a5a867f144..7356260f7f09 100644
--- a/drivers/platform/x86/dell/alienware-wmi.c
+++ b/drivers/platform/x86/dell/alienware-wmi.c
@@ -403,6 +403,12 @@ 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;
@@ -415,8 +421,6 @@ struct alienfx_platdata {
 	struct wmi_device *wdev;
 };
 
-static enum wmax_thermal_mode supported_thermal_profiles[PLATFORM_PROFILE_LAST];
-
 static u8 interface;
 
 /*
@@ -1051,6 +1055,8 @@ 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;
@@ -1071,12 +1077,13 @@ 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;
@@ -1105,7 +1112,7 @@ 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);
 	}
@@ -1114,7 +1121,7 @@ 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);
@@ -1129,14 +1136,21 @@ 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 alienware_awcc_setup(struct wmi_device *wdev)
 {
-	struct device *ppdev;
+	struct awcc_priv *priv;
+
+	priv = devm_kzalloc(&wdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->wdev = wdev;
+	dev_set_drvdata(&wdev->dev, priv);
 
-	ppdev = devm_platform_profile_register(&wdev->dev, "alienware-wmi",
-					       NULL, &awcc_platform_profile_ops);
+	priv->ppdev = devm_platform_profile_register(&wdev->dev, "alienware-wmi",
+						     priv, &awcc_platform_profile_ops);
 
-	return PTR_ERR_OR_ZERO(ppdev);
+	return PTR_ERR_OR_ZERO(priv->ppdev);
 }
 
 /*
@@ -1272,7 +1286,7 @@ static int wmax_wmi_probe(struct wmi_device *wdev, const void *context)
 	int ret;
 
 	if (quirks->thermal) {
-		return create_thermal_profile(wdev);
+		return alienware_awcc_setup(wdev);
 	} else {
 		ret = alienware_alienfx_setup(&pdata);
 		if (ret < 0)
-- 
2.48.1