path: root/SOURCES/asus-linux.patch

From 5a57dbe832b2dc8cc79516977f4fbbfed64c4743 Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Sun, 4 Jun 2023 18:48:11 +1200
Subject: [PATCH 01/13] platform/x86: asus-wmi: add support for showing charger
 mode

Expose a WMI method in sysfs platform for showing which connected
charger the laptop is currently using.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 .../ABI/testing/sysfs-platform-asus-wmi       | 10 +++++++++
 drivers/platform/x86/asus-wmi.c               | 21 +++++++++++++++++++
 include/linux/platform_data/x86/asus-wmi.h    |  3 +++
 3 files changed, 34 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index a77a004a1baa..eb29e3023c7b 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -98,3 +98,13 @@ Description:
 		Enable an LCD response-time boost to reduce or remove ghosting:
 			* 0 - Disable,
 			* 1 - Enable
+
+What:		/sys/devices/platform/<platform>/charge_mode
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Get the current charging mode being used:
+			* 1 - Barrel connected charger,
+			* 2 - USB-C charging
+			* 3 - Both connected, barrel used for charging
\ No newline at end of file
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 8bef66a2f0ce..cf82ae6323f8 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -237,6 +237,7 @@ struct asus_wmi {
 	u8 fan_boost_mode_mask;
 	u8 fan_boost_mode;
 
+	bool charge_mode_available;
 	bool egpu_enable_available;
 	bool dgpu_disable_available;
 	bool gpu_mux_mode_available;
@@ -586,6 +587,22 @@ static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus)
 		asus_wmi_tablet_sw_report(asus, result);
 }
 
+/* Charging mode, 1=Barrel, 2=USB ******************************************/
+static ssize_t charge_mode_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+	int result, value;
+
+	result = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CHARGE_MODE, &value);
+	if (result < 0)
+		return result;
+
+	return sysfs_emit(buf, "%d\n", value & 0xff);
+}
+
+static DEVICE_ATTR_RO(charge_mode);
+
 /* dGPU ********************************************************************/
 static ssize_t dgpu_disable_show(struct device *dev,
 				   struct device_attribute *attr, char *buf)
@@ -3472,6 +3489,7 @@ static struct attribute *platform_attributes[] = {
 	&dev_attr_camera.attr,
 	&dev_attr_cardr.attr,
 	&dev_attr_touchpad.attr,
+	&dev_attr_charge_mode.attr,
 	&dev_attr_egpu_enable.attr,
 	&dev_attr_dgpu_disable.attr,
 	&dev_attr_gpu_mux_mode.attr,
@@ -3501,6 +3519,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 		devid = ASUS_WMI_DEVID_LID_RESUME;
 	else if (attr == &dev_attr_als_enable.attr)
 		devid = ASUS_WMI_DEVID_ALS_ENABLE;
+	else if (attr == &dev_attr_charge_mode.attr)
+		ok = asus->charge_mode_available;
 	else if (attr == &dev_attr_egpu_enable.attr)
 		ok = asus->egpu_enable_available;
 	else if (attr == &dev_attr_dgpu_disable.attr)
@@ -3767,6 +3787,7 @@ static int asus_wmi_add(struct platform_device *pdev)
 	if (err)
 		goto fail_platform;
 
+	asus->charge_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CHARGE_MODE);
 	asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
 	asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
 	asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX);
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index 28234dc9fa6a..f90cafe26af1 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -95,6 +95,9 @@
 /* Keyboard dock */
 #define ASUS_WMI_DEVID_KBD_DOCK		0x00120063
 
+/* Charging mode - 1=Barrel, 2=USB */
+#define ASUS_WMI_DEVID_CHARGE_MODE	0x0012006C
+
 /* dgpu on/off */
 #define ASUS_WMI_DEVID_EGPU		0x00090019
 
-- 
2.41.0

From 6c0e89067d0608fedd3b75844bdea5566a0c249f Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Sun, 4 Jun 2023 19:07:31 +1200
Subject: [PATCH 02/13] platform/x86: asus-wmi: add support for showing middle
 fan RPM

Some newer ASUS ROG laptops now have a middle/center fan in addition
to the CPU and GPU fans. This new fan typically blows across the
heatpipes and VRMs betweent eh CPU and GPU.

This commit exposes that fan to PWM control plus showing RPM.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c            | 91 ++++++++++++++++++++++
 include/linux/platform_data/x86/asus-wmi.h |  1 +
 2 files changed, 92 insertions(+)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index cf82ae6323f8..069251d8040f 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -72,6 +72,7 @@ module_param(fnlock_default, bool, 0444);
 
 #define ASUS_WMI_FNLOCK_BIOS_DISABLED	BIT(0)
 
+#define ASUS_MID_FAN_DESC		"mid_fan"
 #define ASUS_GPU_FAN_DESC		"gpu_fan"
 #define ASUS_FAN_DESC			"cpu_fan"
 #define ASUS_FAN_MFUN			0x13
@@ -229,8 +230,10 @@ struct asus_wmi {
 
 	enum fan_type fan_type;
 	enum fan_type gpu_fan_type;
+	enum fan_type mid_fan_type;
 	int fan_pwm_mode;
 	int gpu_fan_pwm_mode;
+	int mid_fan_pwm_mode;
 	int agfn_pwm;
 
 	bool fan_boost_mode_available;
@@ -2139,6 +2142,31 @@ static ssize_t fan2_label_show(struct device *dev,
 	return sysfs_emit(buf, "%s\n", ASUS_GPU_FAN_DESC);
 }
 
+/* Middle/Center fan on modern ROG laptops */
+static ssize_t fan3_input_show(struct device *dev,
+					struct device_attribute *attr,
+					char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+	int value;
+	int ret;
+
+	ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_MID_FAN_CTRL, &value);
+	if (ret < 0)
+		return ret;
+
+	value &= 0xffff;
+
+	return sysfs_emit(buf, "%d\n", value * 100);
+}
+
+static ssize_t fan3_label_show(struct device *dev,
+					  struct device_attribute *attr,
+					  char *buf)
+{
+	return sysfs_emit(buf, "%s\n", ASUS_MID_FAN_DESC);
+}
+
 static ssize_t pwm2_enable_show(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
@@ -2185,6 +2213,52 @@ static ssize_t pwm2_enable_store(struct device *dev,
 	return count;
 }
 
+static ssize_t pwm3_enable_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%d\n", asus->mid_fan_pwm_mode);
+}
+
+static ssize_t pwm3_enable_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+	int state;
+	int value;
+	int ret;
+	u32 retval;
+
+	ret = kstrtouint(buf, 10, &state);
+	if (ret)
+		return ret;
+
+	switch (state) { /* standard documented hwmon values */
+	case ASUS_FAN_CTRL_FULLSPEED:
+		value = 1;
+		break;
+	case ASUS_FAN_CTRL_AUTO:
+		value = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_MID_FAN_CTRL,
+				    value, &retval);
+	if (ret)
+		return ret;
+
+	if (retval != 1)
+		return -EIO;
+
+	asus->mid_fan_pwm_mode = state;
+	return count;
+}
+
 /* Fan1 */
 static DEVICE_ATTR_RW(pwm1);
 static DEVICE_ATTR_RW(pwm1_enable);
@@ -2194,6 +2268,10 @@ static DEVICE_ATTR_RO(fan1_label);
 static DEVICE_ATTR_RW(pwm2_enable);
 static DEVICE_ATTR_RO(fan2_input);
 static DEVICE_ATTR_RO(fan2_label);
+/* Fan3 - Middle/center fan */
+static DEVICE_ATTR_RW(pwm3_enable);
+static DEVICE_ATTR_RO(fan3_input);
+static DEVICE_ATTR_RO(fan3_label);
 
 /* Temperature */
 static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
@@ -2202,10 +2280,13 @@ static struct attribute *hwmon_attributes[] = {
 	&dev_attr_pwm1.attr,
 	&dev_attr_pwm1_enable.attr,
 	&dev_attr_pwm2_enable.attr,
+	&dev_attr_pwm3_enable.attr,
 	&dev_attr_fan1_input.attr,
 	&dev_attr_fan1_label.attr,
 	&dev_attr_fan2_input.attr,
 	&dev_attr_fan2_label.attr,
+	&dev_attr_fan3_input.attr,
+	&dev_attr_fan3_label.attr,
 
 	&dev_attr_temp1_input.attr,
 	NULL
@@ -2231,6 +2312,11 @@ static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
 	    || attr == &dev_attr_pwm2_enable.attr) {
 		if (asus->gpu_fan_type == FAN_TYPE_NONE)
 			return 0;
+	} else if (attr == &dev_attr_fan3_input.attr
+	    || attr == &dev_attr_fan3_label.attr
+	    || attr == &dev_attr_pwm3_enable.attr) {
+		if (asus->mid_fan_type == FAN_TYPE_NONE)
+			return 0;
 	} else if (attr == &dev_attr_temp1_input.attr) {
 		int err = asus_wmi_get_devstate(asus,
 						ASUS_WMI_DEVID_THERMAL_CTRL,
@@ -2274,6 +2360,7 @@ static int asus_wmi_hwmon_init(struct asus_wmi *asus)
 static int asus_wmi_fan_init(struct asus_wmi *asus)
 {
 	asus->gpu_fan_type = FAN_TYPE_NONE;
+	asus->mid_fan_type = FAN_TYPE_NONE;
 	asus->fan_type = FAN_TYPE_NONE;
 	asus->agfn_pwm = -1;
 
@@ -2288,6 +2375,10 @@ static int asus_wmi_fan_init(struct asus_wmi *asus)
 	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))
 		asus->gpu_fan_type = FAN_TYPE_SPEC83;
 
+	/* Some models also have a center/middle fan */
+	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MID_FAN_CTRL))
+		asus->mid_fan_type = FAN_TYPE_SPEC83;
+
 	if (asus->fan_type == FAN_TYPE_NONE)
 		return -ENODEV;
 
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index f90cafe26af1..2c03bda7703f 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -80,6 +80,7 @@
 #define ASUS_WMI_DEVID_FAN_CTRL		0x00110012 /* deprecated */
 #define ASUS_WMI_DEVID_CPU_FAN_CTRL	0x00110013
 #define ASUS_WMI_DEVID_GPU_FAN_CTRL	0x00110014
+#define ASUS_WMI_DEVID_MID_FAN_CTRL 0x00110031
 #define ASUS_WMI_DEVID_CPU_FAN_CURVE	0x00110024
 #define ASUS_WMI_DEVID_GPU_FAN_CURVE	0x00110025
 
-- 
2.41.0

From 60f66172c03e8cf8417818173c253824527a6d69 Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Sun, 4 Jun 2023 19:37:34 +1200
Subject: [PATCH 03/13] platform/x86: asus-wmi: support middle fan custom
 curves

Adds support for fan curves defined for the middle fan which
is available on some ASUS ROG laptops.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c            | 77 +++++++++++++++++++++-
 include/linux/platform_data/x86/asus-wmi.h |  1 +
 2 files changed, 76 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 069251d8040f..89867b18e8f7 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -113,6 +113,7 @@ module_param(fnlock_default, bool, 0444);
 #define FAN_CURVE_BUF_LEN		32
 #define FAN_CURVE_DEV_CPU		0x00
 #define FAN_CURVE_DEV_GPU		0x01
+#define FAN_CURVE_DEV_MID		0x02
 /* Mask to determine if setting temperature or percentage */
 #define FAN_CURVE_PWM_MASK		0x04
 
@@ -253,7 +254,8 @@ struct asus_wmi {
 
 	bool cpu_fan_curve_available;
 	bool gpu_fan_curve_available;
-	struct fan_curve_data custom_fan_curves[2];
+	bool mid_fan_curve_available;
+	struct fan_curve_data custom_fan_curves[3];
 
 	struct platform_profile_handler platform_profile_handler;
 	bool platform_profile_support;
@@ -2090,6 +2092,8 @@ static ssize_t pwm1_enable_store(struct device *dev,
 		asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
 	if (asus->gpu_fan_curve_available)
 		asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
+	if (asus->mid_fan_curve_available)
+		asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false;
 
 	return count;
 }
@@ -2541,6 +2545,9 @@ static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
 	if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
 		fan_idx = FAN_CURVE_DEV_GPU;
 
+	if (fan_dev == ASUS_WMI_DEVID_MID_FAN_CURVE)
+		fan_idx = FAN_CURVE_DEV_MID;
+
 	curves = &asus->custom_fan_curves[fan_idx];
 	err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
 					   FAN_CURVE_BUF_LEN);
@@ -2829,6 +2836,42 @@ static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, fan_curve,
 static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve,
 			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
 
+/* MID */
+static SENSOR_DEVICE_ATTR_RW(pwm3_enable, fan_curve_enable, FAN_CURVE_DEV_GPU);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_temp, fan_curve,
+			       FAN_CURVE_DEV_GPU, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_temp, fan_curve,
+			       FAN_CURVE_DEV_GPU, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_temp, fan_curve,
+			       FAN_CURVE_DEV_GPU, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_temp, fan_curve,
+			       FAN_CURVE_DEV_GPU, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_temp, fan_curve,
+			       FAN_CURVE_DEV_GPU, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_temp, fan_curve,
+			       FAN_CURVE_DEV_GPU, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_temp, fan_curve,
+			       FAN_CURVE_DEV_GPU, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_temp, fan_curve,
+			       FAN_CURVE_DEV_GPU, 7);
+
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_pwm, fan_curve,
+			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_pwm, fan_curve,
+			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_pwm, fan_curve,
+			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_pwm, fan_curve,
+			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_pwm, fan_curve,
+			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_pwm, fan_curve,
+			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_pwm, fan_curve,
+			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_pwm, fan_curve,
+			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
+
 static struct attribute *asus_fan_curve_attr[] = {
 	/* CPU */
 	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
@@ -2866,6 +2909,24 @@ static struct attribute *asus_fan_curve_attr[] = {
 	&sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr,
+	/* MID */
+	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point6_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point7_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point8_temp.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point5_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point6_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point7_pwm.dev_attr.attr,
+	&sensor_dev_attr_pwm3_auto_point8_pwm.dev_attr.attr,
 	NULL
 };
 
@@ -2885,6 +2946,9 @@ static umode_t asus_fan_curve_is_visible(struct kobject *kobj,
 	if (asus->gpu_fan_curve_available && attr->name[3] == '2')
 		return 0644;
 
+	if (asus->mid_fan_curve_available && attr->name[3] == '3')
+		return 0644;
+
 	return 0;
 }
 
@@ -2914,7 +2978,14 @@ static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus)
 	if (err)
 		return err;
 
-	if (!asus->cpu_fan_curve_available && !asus->gpu_fan_curve_available)
+	err = fan_curve_check_present(asus, &asus->mid_fan_curve_available,
+				      ASUS_WMI_DEVID_MID_FAN_CURVE);
+	if (err)
+		return err;
+
+	if (!asus->cpu_fan_curve_available
+		&& !asus->gpu_fan_curve_available
+		&& !asus->mid_fan_curve_available)
 		return 0;
 
 	hwmon = devm_hwmon_device_register_with_groups(
@@ -2983,6 +3054,8 @@ static int throttle_thermal_policy_write(struct asus_wmi *asus)
 		asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
 	if (asus->gpu_fan_curve_available)
 		asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
+	if (asus->mid_fan_curve_available)
+		asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false;
 
 	return 0;
 }
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index 2c03bda7703f..329efc086993 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -83,6 +83,7 @@
 #define ASUS_WMI_DEVID_MID_FAN_CTRL 0x00110031
 #define ASUS_WMI_DEVID_CPU_FAN_CURVE	0x00110024
 #define ASUS_WMI_DEVID_GPU_FAN_CURVE	0x00110025
+#define ASUS_WMI_DEVID_MID_FAN_CURVE	0x00110032
 
 /* Power */
 #define ASUS_WMI_DEVID_PROCESSOR_STATE	0x00120012
-- 
2.41.0

From 0b90e1673515c0cf89f43c9a7f5cd06db9c7b3f2 Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Sun, 4 Jun 2023 20:01:57 +1200
Subject: [PATCH 04/13] platform/x86: asus-wmi: add WMI method to show if egpu
 connected

Exposes the WMI method which tells if the eGPU is properly connected
on the devices that support it.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 .../ABI/testing/sysfs-platform-asus-wmi       | 11 +++++++++-
 drivers/platform/x86/asus-wmi.c               | 21 +++++++++++++++++++
 include/linux/platform_data/x86/asus-wmi.h    |  4 +++-
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index eb29e3023c7b..878daf7c2036 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -107,4 +107,13 @@ Description:
 		Get the current charging mode being used:
 			* 1 - Barrel connected charger,
 			* 2 - USB-C charging
-			* 3 - Both connected, barrel used for charging
\ No newline at end of file
+			* 3 - Both connected, barrel used for charging
+
+What:		/sys/devices/platform/<platform>/egpu_connected
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Show if the egpu (XG Mobile) is correctly connected:
+			* 0 - False,
+			* 1 - True
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 89867b18e8f7..a65cf8599124 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -243,6 +243,7 @@ struct asus_wmi {
 
 	bool charge_mode_available;
 	bool egpu_enable_available;
+	bool egpu_connect_available;
 	bool dgpu_disable_available;
 	bool gpu_mux_mode_available;
 
@@ -709,6 +710,22 @@ static ssize_t egpu_enable_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(egpu_enable);
 
+/* Is eGPU connected? *********************************************************/
+static ssize_t egpu_connected_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+	int result;
+
+	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
+	if (result < 0)
+		return result;
+
+	return sysfs_emit(buf, "%d\n", result);
+}
+
+static DEVICE_ATTR_RO(egpu_connected);
+
 /* gpu mux switch *************************************************************/
 static ssize_t gpu_mux_mode_show(struct device *dev,
 				 struct device_attribute *attr, char *buf)
@@ -3655,6 +3672,7 @@ static struct attribute *platform_attributes[] = {
 	&dev_attr_touchpad.attr,
 	&dev_attr_charge_mode.attr,
 	&dev_attr_egpu_enable.attr,
+	&dev_attr_egpu_connected.attr,
 	&dev_attr_dgpu_disable.attr,
 	&dev_attr_gpu_mux_mode.attr,
 	&dev_attr_lid_resume.attr,
@@ -3687,6 +3705,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 		ok = asus->charge_mode_available;
 	else if (attr == &dev_attr_egpu_enable.attr)
 		ok = asus->egpu_enable_available;
+	else if (attr == &dev_attr_egpu_connected.attr)
+		ok = asus->egpu_connect_available;
 	else if (attr == &dev_attr_dgpu_disable.attr)
 		ok = asus->dgpu_disable_available;
 	else if (attr == &dev_attr_gpu_mux_mode.attr)
@@ -3953,6 +3973,7 @@ static int asus_wmi_add(struct platform_device *pdev)
 
 	asus->charge_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CHARGE_MODE);
 	asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
+	asus->egpu_connect_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
 	asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
 	asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX);
 	asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index 329efc086993..2034648f8cdf 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -100,7 +100,9 @@
 /* Charging mode - 1=Barrel, 2=USB */
 #define ASUS_WMI_DEVID_CHARGE_MODE	0x0012006C
 
-/* dgpu on/off */
+/* epu is connected? 1 == true */
+#define ASUS_WMI_DEVID_EGPU_CONNECTED	0x00090018
+/* egpu on/off */
 #define ASUS_WMI_DEVID_EGPU		0x00090019
 
 /* dgpu on/off */
-- 
2.41.0

From 1bddf53ccac067e043857d28c1598401cd9db7f4 Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Tue, 20 Jun 2023 12:26:51 +1200
Subject: [PATCH 05/13] platform/x86: asus-wmi: don't allow eGPU switching if
 eGPU not connected

Check the ASUS_WMI_DEVID_EGPU_CONNECTED method for eGPU connection
before allowing the ASUS_WMI_DEVID_EGPU method to run.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index a65cf8599124..3cb7cee110e2 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -693,6 +693,15 @@ static ssize_t egpu_enable_store(struct device *dev,
 	if (enable > 1)
 		return -EINVAL;
 
+	err = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
+	if (err < 0)
+		return err;
+	if (err < 1) {
+		err = -ENODEV;
+		pr_warn("Failed to set egpu disable: %d\n", err);
+		return err;
+	}
+
 	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
 	if (err) {
 		pr_warn("Failed to set egpu disable: %d\n", err);
-- 
2.41.0

From 64b96869a3ed4b7c9e41c1a3e8410c3ec2582ca9 Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Tue, 20 Jun 2023 12:48:31 +1200
Subject: [PATCH 06/13] platform/x86: asus-wmi: add safety checks to gpu
 switching

Add safety checking to dgpu_disable, egpu_enable, gpu_mux_mode.

These checks prevent users from doing such things as:
- disabling the dGPU while is muxed to drive the internal screen
- enabling the eGPU which also disables the dGPU, while muxed to
  the internal screen
- switching the MUX to dGPU while the dGPU is disabled

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c | 50 ++++++++++++++++++++++++++++++++-
 1 file changed, 49 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 3cb7cee110e2..7e80ea2a802a 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -645,6 +645,18 @@ static ssize_t dgpu_disable_store(struct device *dev,
 	if (disable > 1)
 		return -EINVAL;
 
+	if (asus->gpu_mux_mode_available) {
+		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
+		if (result < 0)
+			/* An error here may signal greater failure of GPU handling */
+			return result;
+		if (!result && disable) {
+			err = -ENODEV;
+			pr_warn("Can not disable dGPU when the MUX is in dGPU mode: %d\n", err);
+			return err;
+		}
+	}
+
 	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_DGPU, disable, &result);
 	if (err) {
 		pr_warn("Failed to set dgpu disable: %d\n", err);
@@ -693,7 +705,7 @@ static ssize_t egpu_enable_store(struct device *dev,
 	if (enable > 1)
 		return -EINVAL;
 
-	err = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
+	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
 	if (err < 0)
 		return err;
 	if (err < 1) {
@@ -702,6 +714,18 @@ static ssize_t egpu_enable_store(struct device *dev,
 		return err;
 	}
 
+	if (asus->gpu_mux_mode_available) {
+		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
+		if (result < 0)
+			/* An error here may signal greater failure of GPU handling */
+			return result;
+		if (!result && enable) {
+			err = -ENODEV;
+			pr_warn("Can not enable eGPU when the MUX is in dGPU mode: %d\n", err);
+			return err;
+		}
+	}
+
 	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
 	if (err) {
 		pr_warn("Failed to set egpu disable: %d\n", err);
@@ -764,6 +788,30 @@ static ssize_t gpu_mux_mode_store(struct device *dev,
 	if (optimus > 1)
 		return -EINVAL;
 
+	if (asus->dgpu_disable_available) {
+		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
+		if (result < 0)
+			/* An error here may signal greater failure of GPU handling */
+			return result;
+		if (result && !optimus) {
+			err = -ENODEV;
+			pr_warn("Can not switch MUX to dGPU mode when dGPU is disabled: %d\n", err);
+			return err;
+		}
+	}
+
+	if (asus->egpu_enable_available) {
+		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
+		if (result < 0)
+			/* An error here may signal greater failure of GPU handling */
+			return result;
+		if (result && !optimus) {
+			err = -ENODEV;
+			pr_warn("Can not switch MUX to dGPU mode when eGPU is enabled: %d\n", err);
+			return err;
+		}
+	}
+
 	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_MUX, optimus, &result);
 	if (err) {
 		dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
-- 
2.41.0

From 76d73c965c18d6b5e1d8d9ab6ae446e2f1913b6b Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Sun, 4 Jun 2023 20:21:10 +1200
Subject: [PATCH 07/13] platform/x86: asus-wmi: support setting mini-LED mode

Support changing the mini-LED mode on some of the newer ASUS laptops.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 .../ABI/testing/sysfs-platform-asus-wmi       |  9 ++++
 drivers/platform/x86/asus-wmi.c               | 53 +++++++++++++++++++
 include/linux/platform_data/x86/asus-wmi.h    |  1 +
 3 files changed, 63 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 878daf7c2036..5624bdef49cb 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -117,3 +117,12 @@ Description:
 		Show if the egpu (XG Mobile) is correctly connected:
 			* 0 - False,
 			* 1 - True
+
+What:		/sys/devices/platform/<platform>/mini_led_mode
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Change the mini-LED mode:
+			* 0 - Single-zone,
+			* 1 - Multi-zone
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 7e80ea2a802a..9b3dd262f6e4 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -265,6 +265,7 @@ struct asus_wmi {
 	bool battery_rsoc_available;
 
 	bool panel_overdrive_available;
+	bool mini_led_mode_available;
 
 	struct hotplug_slot hotplug_slot;
 	struct mutex hotplug_lock;
@@ -1830,6 +1831,54 @@ static ssize_t panel_od_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(panel_od);
 
+/* Mini-LED mode **************************************************************/
+static ssize_t mini_led_mode_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+	int result;
+
+	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
+	if (result < 0)
+		return result;
+
+	return sysfs_emit(buf, "%d\n", result);
+}
+
+static ssize_t mini_led_mode_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int result, err;
+	u32 mode;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &mode);
+	if (result)
+		return result;
+
+	if (mode > 1)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MINI_LED_MODE, mode, &result);
+
+	if (err) {
+		pr_warn("Failed to set mini-LED: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set mini-LED mode (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mini_led_mode");
+
+	return count;
+}
+static DEVICE_ATTR_RW(mini_led_mode);
+
 /* Quirks *********************************************************************/
 
 static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
@@ -3737,6 +3786,7 @@ static struct attribute *platform_attributes[] = {
 	&dev_attr_fan_boost_mode.attr,
 	&dev_attr_throttle_thermal_policy.attr,
 	&dev_attr_panel_od.attr,
+	&dev_attr_mini_led_mode.attr,
 	NULL
 };
 
@@ -3774,6 +3824,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 		ok = asus->throttle_thermal_policy_available;
 	else if (attr == &dev_attr_panel_od.attr)
 		ok = asus->panel_overdrive_available;
+	else if (attr == &dev_attr_mini_led_mode.attr)
+		ok = asus->mini_led_mode_available;
 
 	if (devid != -1)
 		ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
@@ -4036,6 +4088,7 @@ static int asus_wmi_add(struct platform_device *pdev)
 	asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
 	asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
 	asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
+	asus->mini_led_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
 
 	err = fan_boost_mode_check_present(asus);
 	if (err)
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index 2034648f8cdf..ea80361ac6c7 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -66,6 +66,7 @@
 #define ASUS_WMI_DEVID_CAMERA		0x00060013
 #define ASUS_WMI_DEVID_LID_FLIP		0x00060062
 #define ASUS_WMI_DEVID_LID_FLIP_ROG	0x00060077
+#define ASUS_WMI_DEVID_MINI_LED_MODE	0x0005001E
 
 /* Storage */
 #define ASUS_WMI_DEVID_CARDREADER	0x00080013
-- 
2.41.0

From 3172f65f82ae6b36ab30a91ff73ba703a902da0a Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Tue, 6 Jun 2023 15:05:01 +1200
Subject: [PATCH 08/13] platform/x86: asus-wmi: expose dGPU and CPU tunables
 for ROG

Expose various CPU and dGPU tunables that are available on many ASUS
ROG laptops. The tunables shown in sysfs will vary depending on the CPU
and dGPU vendor.

All of these variables are write only and there is no easy way to find
what the defaults are. In general they seem to default to the max value
the vendor sets for the CPU and dGPU package - this is not the same as
the min/max writable value. Values written to these variables that are
beyond the capabilities of the CPU are ignored by the laptop.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 .../ABI/testing/sysfs-platform-asus-wmi       |  58 ++++
 drivers/platform/x86/asus-wmi.c               | 285 ++++++++++++++++++
 include/linux/platform_data/x86/asus-wmi.h    |   9 +
 3 files changed, 352 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 5624bdef49cb..caaccd28fabf 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -126,3 +126,61 @@ Description:
 		Change the mini-LED mode:
 			* 0 - Single-zone,
 			* 1 - Multi-zone
+
+What:		/sys/devices/platform/<platform>/ppt_pl1_spl
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set the Package Power Target total of CPU: PL1 on Intel, SPL on AMD.
+		Shown on Intel+Nvidia or AMD+Nvidia based systems.
+			* min=5, max=250
+
+What:		/sys/devices/platform/<platform>/ppt_pl2_sppt
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set the Slow Package Power Tracking Limit of CPU: PL2 on Intel, SPPT,
+		on AMD. Shown on Intel+Nvidia or AMD+Nvidia based systems.
+			* min=5, max=250
+
+What:		/sys/devices/platform/<platform>/ppt_fppt
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set the Fast Package Power Tracking Limit of CPU. AMD+Nvidia only.
+			* min=5, max=250
+
+What:		/sys/devices/platform/<platform>/ppt_apu_sppt
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set the APU SPPT limit. Shown on full AMD systems only.
+			* min=5, max=130
+
+What:		/sys/devices/platform/<platform>/ppt_platform_sppt
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set the platform SPPT limit. Shown on full AMD systems only.
+			* min=5, max=130
+
+What:		/sys/devices/platform/<platform>/nv_dynamic_boost
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set the dynamic boost limit of the Nvidia dGPU:
+			* min=5, max=25
+
+What:		/sys/devices/platform/<platform>/nv_temp_target
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set the target temperature limit of the Nvidia dGPU:
+			* min=75, max=87
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 9b3dd262f6e4..c732610b3fef 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -117,6 +117,16 @@ module_param(fnlock_default, bool, 0444);
 /* Mask to determine if setting temperature or percentage */
 #define FAN_CURVE_PWM_MASK		0x04
 
+/* Limits for tunables available on ASUS ROG laptops */
+#define PPT_TOTAL_MIN		5
+#define PPT_TOTAL_MAX		250
+#define PPT_CPU_MIN			5
+#define PPT_CPU_MAX			130
+#define NVIDIA_BOOST_MIN	5
+#define NVIDIA_BOOST_MAX	25
+#define NVIDIA_TEMP_MIN		75
+#define NVIDIA_TEMP_MAX		87
+
 static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
 
 static int throttle_thermal_policy_write(struct asus_wmi *);
@@ -247,6 +257,15 @@ struct asus_wmi {
 	bool dgpu_disable_available;
 	bool gpu_mux_mode_available;
 
+	/* Tunables provided by ASUS for gaming laptops */
+	bool ppt_pl2_sppt_available;
+	bool ppt_pl1_spl_available;
+	bool ppt_apu_sppt_available;
+	bool ppt_plat_sppt_available;
+	bool ppt_fppt_available;
+	bool nv_dyn_boost_available;
+	bool nv_temp_tgt_available;
+
 	bool kbd_rgb_mode_available;
 	bool kbd_rgb_state_available;
 
@@ -956,6 +975,244 @@ static const struct attribute_group *kbd_rgb_mode_groups[] = {
 	NULL,
 };
 
+/* Tunable: PPT: Intel=PL1, AMD=SPPT *****************************************/
+static ssize_t ppt_pl2_sppt_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int result, err;
+	u32 value;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &value);
+	if (result)
+		return result;
+
+	if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL2_SPPT, value, &result);
+	if (err) {
+		pr_warn("Failed to set ppt_pl2_sppt: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set ppt_pl2_sppt (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl2_sppt");
+
+	return count;
+}
+static DEVICE_ATTR_WO(ppt_pl2_sppt);
+
+/* Tunable: PPT, Intel=PL1, AMD=SPL ******************************************/
+static ssize_t ppt_pl1_spl_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int result, err;
+	u32 value;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &value);
+	if (result)
+		return result;
+
+	if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL1_SPL, value, &result);
+	if (err) {
+		pr_warn("Failed to set ppt_pl1_spl: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set ppt_pl1_spl (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl1_spl");
+
+	return count;
+}
+static DEVICE_ATTR_WO(ppt_pl1_spl);
+
+/* Tunable: PPT APU FPPT ******************************************************/
+static ssize_t ppt_fppt_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int result, err;
+	u32 value;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &value);
+	if (result)
+		return result;
+
+	if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_FPPT, value, &result);
+	if (err) {
+		pr_warn("Failed to set ppt_fppt: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set ppt_fppt (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_fpu_sppt");
+
+	return count;
+}
+static DEVICE_ATTR_WO(ppt_fppt);
+
+/* Tunable: PPT APU SPPT *****************************************************/
+static ssize_t ppt_apu_sppt_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int result, err;
+	u32 value;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &value);
+	if (result)
+		return result;
+
+	if (value < PPT_CPU_MIN || value > PPT_CPU_MAX)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_APU_SPPT, value, &result);
+	if (err) {
+		pr_warn("Failed to set ppt_apu_sppt: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set ppt_apu_sppt (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_apu_sppt");
+
+	return count;
+}
+static DEVICE_ATTR_WO(ppt_apu_sppt);
+
+/* Tunable: PPT platform SPPT ************************************************/
+static ssize_t ppt_platform_sppt_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int result, err;
+	u32 value;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &value);
+	if (result)
+		return result;
+
+	if (value < PPT_CPU_MIN || value > PPT_CPU_MAX)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PLAT_SPPT, value, &result);
+	if (err) {
+		pr_warn("Failed to set ppt_platform_sppt: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set ppt_platform_sppt (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_platform_sppt");
+
+	return count;
+}
+static DEVICE_ATTR_WO(ppt_platform_sppt);
+
+/* Tunable: NVIDIA dynamic boost *********************************************/
+static ssize_t nv_dynamic_boost_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int result, err;
+	u32 value;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &value);
+	if (result)
+		return result;
+
+	if (value < NVIDIA_BOOST_MIN || value > NVIDIA_BOOST_MAX)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_DYN_BOOST, value, &result);
+	if (err) {
+		pr_warn("Failed to set nv_dynamic_boost: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set nv_dynamic_boost (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_dynamic_boost");
+
+	return count;
+}
+static DEVICE_ATTR_WO(nv_dynamic_boost);
+
+/* Tunable: NVIDIA temperature target ****************************************/
+static ssize_t nv_temp_target_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int result, err;
+	u32 value;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &value);
+	if (result)
+		return result;
+
+	if (value < NVIDIA_TEMP_MIN || value > NVIDIA_TEMP_MAX)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_THERM_TARGET, value, &result);
+	if (err) {
+		pr_warn("Failed to set nv_temp_target: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set nv_temp_target (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_temp_target");
+
+	return count;
+}
+static DEVICE_ATTR_WO(nv_temp_target);
+
 /* Battery ********************************************************************/
 
 /* The battery maximum charging percentage */
@@ -3785,6 +4042,13 @@ static struct attribute *platform_attributes[] = {
 	&dev_attr_als_enable.attr,
 	&dev_attr_fan_boost_mode.attr,
 	&dev_attr_throttle_thermal_policy.attr,
+	&dev_attr_ppt_pl2_sppt.attr,
+	&dev_attr_ppt_pl1_spl.attr,
+	&dev_attr_ppt_fppt.attr,
+	&dev_attr_ppt_apu_sppt.attr,
+	&dev_attr_ppt_platform_sppt.attr,
+	&dev_attr_nv_dynamic_boost.attr,
+	&dev_attr_nv_temp_target.attr,
 	&dev_attr_panel_od.attr,
 	&dev_attr_mini_led_mode.attr,
 	NULL
@@ -3822,6 +4086,20 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 		ok = asus->fan_boost_mode_available;
 	else if (attr == &dev_attr_throttle_thermal_policy.attr)
 		ok = asus->throttle_thermal_policy_available;
+	else if (attr == &dev_attr_ppt_pl2_sppt.attr)
+		ok = asus->ppt_pl2_sppt_available;
+	else if (attr == &dev_attr_ppt_pl1_spl.attr)
+		ok = asus->ppt_pl1_spl_available;
+	else if (attr == &dev_attr_ppt_fppt.attr)
+		ok = asus->ppt_fppt_available;
+	else if (attr == &dev_attr_ppt_apu_sppt.attr)
+		ok = asus->ppt_apu_sppt_available;
+	else if (attr == &dev_attr_ppt_platform_sppt.attr)
+		ok = asus->ppt_plat_sppt_available;
+	else if (attr == &dev_attr_nv_dynamic_boost.attr)
+		ok = asus->nv_dyn_boost_available;
+	else if (attr == &dev_attr_nv_temp_target.attr)
+		ok = asus->nv_temp_tgt_available;
 	else if (attr == &dev_attr_panel_od.attr)
 		ok = asus->panel_overdrive_available;
 	else if (attr == &dev_attr_mini_led_mode.attr)
@@ -4087,6 +4365,13 @@ static int asus_wmi_add(struct platform_device *pdev)
 	asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX);
 	asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
 	asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
+	asus->ppt_pl2_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PL2_SPPT);
+	asus->ppt_pl1_spl_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PL1_SPL);
+	asus->ppt_fppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_FPPT);
+	asus->ppt_apu_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_APU_SPPT);
+	asus->ppt_plat_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PLAT_SPPT);
+	asus->nv_dyn_boost_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_NV_DYN_BOOST);
+	asus->nv_temp_tgt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_NV_THERM_TARGET);
 	asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
 	asus->mini_led_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
 
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index ea80361ac6c7..16e99a1c37fc 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -86,6 +86,15 @@
 #define ASUS_WMI_DEVID_GPU_FAN_CURVE	0x00110025
 #define ASUS_WMI_DEVID_MID_FAN_CURVE	0x00110032
 
+/* Tunables for AUS ROG laptops */
+#define ASUS_WMI_DEVID_PPT_PL2_SPPT		0x001200A0
+#define ASUS_WMI_DEVID_PPT_PL1_SPL		0x001200A3
+#define ASUS_WMI_DEVID_PPT_APU_SPPT		0x001200B0
+#define ASUS_WMI_DEVID_PPT_PLAT_SPPT	0x001200B1
+#define ASUS_WMI_DEVID_PPT_FPPT			0x001200C1
+#define ASUS_WMI_DEVID_NV_DYN_BOOST		0x001200C0
+#define ASUS_WMI_DEVID_NV_THERM_TARGET	0x001200C2
+
 /* Power */
 #define ASUS_WMI_DEVID_PROCESSOR_STATE	0x00120012
 
-- 
2.41.0

From 73622204c837e2ab4729bc2af2c8bb6d58f4b3b0 Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Sun, 23 Jul 2023 21:29:11 +1200
Subject: [PATCH 09/13] Fixes: a23870110a38 ("asus-wmi: add support for showing
 middle fan RPM")

After the addition of the mid fan custom curve functionality various
incorrect behaviour was uncovered. This commit fixes these areas.

- Ensure mid fan attributes actually use the correct fan ID
- Correction to a bit mask for selecting the correct fan data
- Refactor the curve show/store functions to be cleaner and and
  match each others layout

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c | 78 ++++++++++++++++-----------------
 1 file changed, 38 insertions(+), 40 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index c732610b3fef..496d03e88595 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -2910,9 +2910,8 @@ static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
 {
 	struct fan_curve_data *curves;
 	u8 buf[FAN_CURVE_BUF_LEN];
-	int fan_idx = 0;
+	int err, fan_idx;
 	u8 mode = 0;
-	int err;
 
 	if (asus->throttle_thermal_policy_available)
 		mode = asus->throttle_thermal_policy_mode;
@@ -2922,13 +2921,6 @@ static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
 	else if (mode == 1)
 		mode = 2;
 
-	if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
-		fan_idx = FAN_CURVE_DEV_GPU;
-
-	if (fan_dev == ASUS_WMI_DEVID_MID_FAN_CURVE)
-		fan_idx = FAN_CURVE_DEV_MID;
-
-	curves = &asus->custom_fan_curves[fan_idx];
 	err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
 					   FAN_CURVE_BUF_LEN);
 	if (err) {
@@ -2936,9 +2928,17 @@ static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
 		return err;
 	}
 
-	fan_curve_copy_from_buf(curves, buf);
+	fan_idx = FAN_CURVE_DEV_CPU;
+	if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
+		fan_idx = FAN_CURVE_DEV_GPU;
+
+	if (fan_dev == ASUS_WMI_DEVID_MID_FAN_CURVE)
+		fan_idx = FAN_CURVE_DEV_MID;
+
+	curves = &asus->custom_fan_curves[fan_idx];
 	curves->device_id = fan_dev;
 
+	fan_curve_copy_from_buf(curves, buf);
 	return 0;
 }
 
@@ -2968,7 +2968,7 @@ static struct fan_curve_data *fan_curve_attr_select(struct asus_wmi *asus,
 {
 	int index = to_sensor_dev_attr(attr)->index;
 
-	return &asus->custom_fan_curves[index & FAN_CURVE_DEV_GPU];
+	return &asus->custom_fan_curves[index];
 }
 
 /* Determine which fan the attribute is for if SENSOR_ATTR_2 */
@@ -2977,7 +2977,7 @@ static struct fan_curve_data *fan_curve_attr_2_select(struct asus_wmi *asus,
 {
 	int nr = to_sensor_dev_attr_2(attr)->nr;
 
-	return &asus->custom_fan_curves[nr & FAN_CURVE_DEV_GPU];
+	return &asus->custom_fan_curves[nr & ~FAN_CURVE_PWM_MASK];
 }
 
 static ssize_t fan_curve_show(struct device *dev,
@@ -2986,13 +2986,13 @@ static ssize_t fan_curve_show(struct device *dev,
 	struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
 	struct asus_wmi *asus = dev_get_drvdata(dev);
 	struct fan_curve_data *data;
-	int value, index, nr;
+	int value, pwm, index;
 
 	data = fan_curve_attr_2_select(asus, attr);
+	pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
 	index = dev_attr->index;
-	nr = dev_attr->nr;
 
-	if (nr & FAN_CURVE_PWM_MASK)
+	if (pwm)
 		value = data->percents[index];
 	else
 		value = data->temps[index];
@@ -3035,23 +3035,21 @@ static ssize_t fan_curve_store(struct device *dev,
 	struct sensor_device_attribute_2 *dev_attr = to_sensor_dev_attr_2(attr);
 	struct asus_wmi *asus = dev_get_drvdata(dev);
 	struct fan_curve_data *data;
+	int err, pwm, index;
 	u8 value;
-	int err;
-
-	int pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
-	int index = dev_attr->index;
 
 	data = fan_curve_attr_2_select(asus, attr);
+	pwm = dev_attr->nr & FAN_CURVE_PWM_MASK;
+	index = dev_attr->index;
 
 	err = kstrtou8(buf, 10, &value);
 	if (err < 0)
 		return err;
 
-	if (pwm) {
+	if (pwm)
 		data->percents[index] = value;
-	} else {
+	else
 		data->temps[index] = value;
-	}
 
 	/*
 	 * Mark as disabled so the user has to explicitly enable to apply a
@@ -3164,7 +3162,7 @@ static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, fan_curve,
 			       FAN_CURVE_DEV_CPU, 7);
 
 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, fan_curve,
-			       FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0);
+				FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 0);
 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, fan_curve,
 			       FAN_CURVE_DEV_CPU | FAN_CURVE_PWM_MASK, 1);
 static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, fan_curve,
@@ -3217,40 +3215,40 @@ static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, fan_curve,
 			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
 
 /* MID */
-static SENSOR_DEVICE_ATTR_RW(pwm3_enable, fan_curve_enable, FAN_CURVE_DEV_GPU);
+static SENSOR_DEVICE_ATTR_RW(pwm3_enable, fan_curve_enable, FAN_CURVE_DEV_MID);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_temp, fan_curve,
-			       FAN_CURVE_DEV_GPU, 0);
+			       FAN_CURVE_DEV_MID, 0);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_temp, fan_curve,
-			       FAN_CURVE_DEV_GPU, 1);
+			       FAN_CURVE_DEV_MID, 1);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_temp, fan_curve,
-			       FAN_CURVE_DEV_GPU, 2);
+			       FAN_CURVE_DEV_MID, 2);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_temp, fan_curve,
-			       FAN_CURVE_DEV_GPU, 3);
+			       FAN_CURVE_DEV_MID, 3);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_temp, fan_curve,
-			       FAN_CURVE_DEV_GPU, 4);
+			       FAN_CURVE_DEV_MID, 4);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_temp, fan_curve,
-			       FAN_CURVE_DEV_GPU, 5);
+			       FAN_CURVE_DEV_MID, 5);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_temp, fan_curve,
-			       FAN_CURVE_DEV_GPU, 6);
+			       FAN_CURVE_DEV_MID, 6);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_temp, fan_curve,
-			       FAN_CURVE_DEV_GPU, 7);
+			       FAN_CURVE_DEV_MID, 7);
 
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_pwm, fan_curve,
-			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 0);
+			       FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 0);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_pwm, fan_curve,
-			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 1);
+			       FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 1);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_pwm, fan_curve,
-			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 2);
+			       FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 2);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_pwm, fan_curve,
-			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 3);
+			       FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 3);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_pwm, fan_curve,
-			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 4);
+			       FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 4);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_pwm, fan_curve,
-			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 5);
+			       FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 5);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_pwm, fan_curve,
-			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 6);
+			       FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 6);
 static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_pwm, fan_curve,
-			       FAN_CURVE_DEV_GPU | FAN_CURVE_PWM_MASK, 7);
+			       FAN_CURVE_DEV_MID | FAN_CURVE_PWM_MASK, 7);
 
 static struct attribute *asus_fan_curve_attr[] = {
 	/* CPU */
-- 
2.41.0

From ebd35946f15047d89fd1bb68b0f75dc5c367af6e Mon Sep 17 00:00:00 2001
From: Stefan Binding <sbinding@opensource.cirrus.com>
Date: Tue, 15 Aug 2023 17:10:33 +0100
Subject: [PATCH 10/13] ALSA: hda: cs35l41: Support systems with missing _DSD
 properties

Some systems using CS35L41 with HDA were released without some
required _DSD properties in ACPI. To support these special cases,
add an api to configure the correct properties for systems with
this issue.

This initial commit moves the no _DSD support for Lenovo
Legion Laptops (CLSA0100, CLSA0101) into a new framework which
can be extended to support additional laptops in the future.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
---
 sound/pci/hda/Makefile               |  2 +-
 sound/pci/hda/cs35l41_hda.c          | 65 ++++++-------------------
 sound/pci/hda/cs35l41_hda.h          |  1 +
 sound/pci/hda/cs35l41_hda_property.c | 73 ++++++++++++++++++++++++++++
 sound/pci/hda/cs35l41_hda_property.h | 18 +++++++
 5 files changed, 108 insertions(+), 51 deletions(-)
 create mode 100644 sound/pci/hda/cs35l41_hda_property.c
 create mode 100644 sound/pci/hda/cs35l41_hda_property.h

diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile
index 00d306104484..3b259239c48a 100644
--- a/sound/pci/hda/Makefile
+++ b/sound/pci/hda/Makefile
@@ -28,7 +28,7 @@ snd-hda-codec-via-objs :=	patch_via.o
 snd-hda-codec-hdmi-objs :=	patch_hdmi.o hda_eld.o
 
 # side codecs
-snd-hda-scodec-cs35l41-objs :=		cs35l41_hda.o
+snd-hda-scodec-cs35l41-objs :=		cs35l41_hda.o cs35l41_hda_property.o
 snd-hda-scodec-cs35l41-i2c-objs :=	cs35l41_hda_i2c.o
 snd-hda-scodec-cs35l41-spi-objs :=	cs35l41_hda_spi.o
 snd-hda-cs-dsp-ctls-objs :=		hda_cs_dsp_ctl.o
diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
index ce5faa620517..692b69f24138 100644
--- a/sound/pci/hda/cs35l41_hda.c
+++ b/sound/pci/hda/cs35l41_hda.c
@@ -19,6 +19,7 @@
 #include "hda_component.h"
 #include "cs35l41_hda.h"
 #include "hda_cs_dsp_ctl.h"
+#include "cs35l41_hda_property.h"
 
 #define CS35L41_FIRMWARE_ROOT "cirrus/"
 #define CS35L41_PART "cs35l41"
@@ -1156,8 +1157,7 @@ static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41)
 	return cs35l41_hda_channel_map(cs35l41->dev, 0, NULL, 1, &hw_cfg->spk_pos);
 }
 
-static int cs35l41_get_speaker_id(struct device *dev, int amp_index,
-				  int num_amps, int fixed_gpio_id)
+int cs35l41_get_speaker_id(struct device *dev, int amp_index, int num_amps, int fixed_gpio_id)
 {
 	struct gpio_desc *speaker_id_desc;
 	int speaker_id = -ENODEV;
@@ -1211,49 +1211,6 @@ static int cs35l41_get_speaker_id(struct device *dev, int amp_index,
 	return speaker_id;
 }
 
-/*
- * Device CLSA010(0/1) doesn't have _DSD so a gpiod_get by the label reset won't work.
- * And devices created by serial-multi-instantiate don't have their device struct
- * pointing to the correct fwnode, so acpi_dev must be used here.
- * And devm functions expect that the device requesting the resource has the correct
- * fwnode.
- */
-static int cs35l41_no_acpi_dsd(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
-			       const char *hid)
-{
-	struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
-
-	/* check I2C address to assign the index */
-	cs35l41->index = id == 0x40 ? 0 : 1;
-	cs35l41->channel_index = 0;
-	cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 0, GPIOD_OUT_HIGH);
-	cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, 0, 0, 2);
-	hw_cfg->spk_pos = cs35l41->index;
-	hw_cfg->gpio2.func = CS35L41_INTERRUPT;
-	hw_cfg->gpio2.valid = true;
-	hw_cfg->valid = true;
-
-	if (strncmp(hid, "CLSA0100", 8) == 0) {
-		hw_cfg->bst_type = CS35L41_EXT_BOOST_NO_VSPK_SWITCH;
-	} else if (strncmp(hid, "CLSA0101", 8) == 0) {
-		hw_cfg->bst_type = CS35L41_EXT_BOOST;
-		hw_cfg->gpio1.func = CS35l41_VSPK_SWITCH;
-		hw_cfg->gpio1.valid = true;
-	} else {
-		/*
-		 * Note: CLSA010(0/1) are special cases which use a slightly different design.
-		 * All other HIDs e.g. CSC3551 require valid ACPI _DSD properties to be supported.
-		 */
-		dev_err(cs35l41->dev, "Error: ACPI _DSD Properties are missing for HID %s.\n", hid);
-		hw_cfg->valid = false;
-		hw_cfg->gpio1.valid = false;
-		hw_cfg->gpio2.valid = false;
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
 static int cs35l41_hda_read_acpi(struct cs35l41_hda *cs35l41, const char *hid, int id)
 {
 	struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
@@ -1279,12 +1236,17 @@ static int cs35l41_hda_read_acpi(struct cs35l41_hda *cs35l41, const char *hid, i
 		sub = NULL;
 	cs35l41->acpi_subsystem_id = sub;
 
+	ret = cs35l41_add_dsd_properties(cs35l41, physdev, id, hid);
+	if (!ret) {
+		dev_info(cs35l41->dev, "Using extra _DSD properties, bypassing _DSD in ACPI\n");
+		goto put_physdev;
+	}
+
 	property = "cirrus,dev-index";
 	ret = device_property_count_u32(physdev, property);
-	if (ret <= 0) {
-		ret = cs35l41_no_acpi_dsd(cs35l41, physdev, id, hid);
-		goto err_put_physdev;
-	}
+	if (ret <= 0)
+		goto err;
+
 	if (ret > ARRAY_SIZE(values)) {
 		ret = -EINVAL;
 		goto err;
@@ -1374,7 +1336,10 @@ static int cs35l41_hda_read_acpi(struct cs35l41_hda *cs35l41, const char *hid, i
 
 err:
 	dev_err(cs35l41->dev, "Failed property %s: %d\n", property, ret);
-err_put_physdev:
+	hw_cfg->valid = false;
+	hw_cfg->gpio1.valid = false;
+	hw_cfg->gpio2.valid = false;
+put_physdev:
 	put_device(physdev);
 
 	return ret;
diff --git a/sound/pci/hda/cs35l41_hda.h b/sound/pci/hda/cs35l41_hda.h
index bdb35f3be68a..b93bf762976e 100644
--- a/sound/pci/hda/cs35l41_hda.h
+++ b/sound/pci/hda/cs35l41_hda.h
@@ -83,5 +83,6 @@ extern const struct dev_pm_ops cs35l41_hda_pm_ops;
 int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq,
 		      struct regmap *regmap);
 void cs35l41_hda_remove(struct device *dev);
+int cs35l41_get_speaker_id(struct device *dev, int amp_index, int num_amps, int fixed_gpio_id);
 
 #endif /*__CS35L41_HDA_H__*/
diff --git a/sound/pci/hda/cs35l41_hda_property.c b/sound/pci/hda/cs35l41_hda_property.c
new file mode 100644
index 000000000000..673f23257a09
--- /dev/null
+++ b/sound/pci/hda/cs35l41_hda_property.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// CS35L41 ALSA HDA Property driver
+//
+// Copyright 2023 Cirrus Logic, Inc.
+//
+// Author: Stefan Binding <sbinding@opensource.cirrus.com>
+
+#include <linux/gpio/consumer.h>
+#include <linux/string.h>
+#include "cs35l41_hda_property.h"
+
+/*
+ * Device CLSA010(0/1) doesn't have _DSD so a gpiod_get by the label reset won't work.
+ * And devices created by serial-multi-instantiate don't have their device struct
+ * pointing to the correct fwnode, so acpi_dev must be used here.
+ * And devm functions expect that the device requesting the resource has the correct
+ * fwnode.
+ */
+static int lenovo_legion_no_acpi(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
+				 const char *hid)
+{
+	struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
+
+	/* check I2C address to assign the index */
+	cs35l41->index = id == 0x40 ? 0 : 1;
+	cs35l41->channel_index = 0;
+	cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 0, GPIOD_OUT_HIGH);
+	cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, 0, 0, 2);
+	hw_cfg->spk_pos = cs35l41->index;
+	hw_cfg->gpio2.func = CS35L41_INTERRUPT;
+	hw_cfg->gpio2.valid = true;
+	hw_cfg->valid = true;
+
+	if (strcmp(hid, "CLSA0100") == 0) {
+		hw_cfg->bst_type = CS35L41_EXT_BOOST_NO_VSPK_SWITCH;
+	} else if (strcmp(hid, "CLSA0101") == 0) {
+		hw_cfg->bst_type = CS35L41_EXT_BOOST;
+		hw_cfg->gpio1.func = CS35l41_VSPK_SWITCH;
+		hw_cfg->gpio1.valid = true;
+	}
+
+	return 0;
+}
+
+struct cs35l41_prop_model {
+	const char *hid;
+	const char *ssid;
+	int (*add_prop)(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
+			const char *hid);
+};
+
+const struct cs35l41_prop_model cs35l41_prop_model_table[] = {
+	{ "CLSA0100", NULL, lenovo_legion_no_acpi },
+	{ "CLSA0101", NULL, lenovo_legion_no_acpi },
+	{}
+};
+
+int cs35l41_add_dsd_properties(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
+			       const char *hid)
+{
+	const struct cs35l41_prop_model *model;
+
+	for (model = cs35l41_prop_model_table; model->hid > 0; model++) {
+		if (!strcmp(model->hid, hid) &&
+		    (!model->ssid ||
+		     (cs35l41->acpi_subsystem_id &&
+		      !strcmp(model->ssid, cs35l41->acpi_subsystem_id))))
+			return model->add_prop(cs35l41, physdev, id, hid);
+	}
+
+	return -ENOENT;
+}
diff --git a/sound/pci/hda/cs35l41_hda_property.h b/sound/pci/hda/cs35l41_hda_property.h
new file mode 100644
index 000000000000..fd834042e2fd
--- /dev/null
+++ b/sound/pci/hda/cs35l41_hda_property.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * CS35L41 ALSA HDA Property driver
+ *
+ * Copyright 2023 Cirrus Logic, Inc.
+ *
+ * Author: Stefan Binding <sbinding@opensource.cirrus.com>
+ */
+
+#ifndef CS35L41_HDA_PROP_H
+#define CS35L41_HDA_PROP_H
+
+#include <linux/device.h>
+#include "cs35l41_hda.h"
+
+int cs35l41_add_dsd_properties(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
+			       const char *hid);
+#endif /* CS35L41_HDA_PROP_H */
-- 
2.41.0

From d6f191b6827fae534a0635afb8d4380b59cb409c Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Wed, 23 Aug 2023 11:05:59 +1200
Subject: [PATCH 11/13] ALSA: hda: cs35l41: Support ASUS 2023 laptops with
 missing DSD

Support adding the missing DSD properties required  for ASUS ROG 2023
laptops and other ASUS laptops to properly utilise the cs35l41.

The currently added laptops are:
- ASUS GS650P,   i2c
- ASUS GA402X,   i2c
- ASUS GU604V,   spi
- ASUS GU603V,   spi
- ASUS GV601V,   spi
- ASUS GZ301V,   spi
- ASUS ROG ALLY, i2c
- ASUS G614J,    spi
- ASUS G634J,    spi
- ASUS G614JI,   spi
- ASUS G713P,    i2c
- ASUS H7604JV,  spi

The SPI connected amps may be required to use an external DSD patch
to fix or add the "cs-gpios" property.

Co-developed-by: Jonathan LoBue <jlobue10@gmail.com>
Signed-off-by: Jonathan LoBue <jlobue10@gmail.com>
Co-developed-by: Luke D. Jones <luke@ljones.dev>
Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 sound/pci/hda/cs35l41_hda_property.c | 47 ++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/sound/pci/hda/cs35l41_hda_property.c b/sound/pci/hda/cs35l41_hda_property.c
index 673f23257a09..b39f9443e1d6 100644
--- a/sound/pci/hda/cs35l41_hda_property.c
+++ b/sound/pci/hda/cs35l41_hda_property.c
@@ -43,6 +43,41 @@ static int lenovo_legion_no_acpi(struct cs35l41_hda *cs35l41, struct device *phy
 	return 0;
 }
 
+/*
+ * The CSC3551 is used in almost the entire ASUS ROG laptop range in 2023, this is likely to
+ * also include many non ROG labelled laptops. It is also used with either I2C connection or
+ * SPI connection. The SPI connected versions may be missing a chip select GPIO and require
+ * an DSD table patch.
+ */
+static int asus_rog_2023_spkr_id2(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
+				const char *hid)
+{
+	struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
+
+	/* check SPI or I2C address to assign the index */
+	cs35l41->index = (id == 0 || id == 0x40) ? 0 : 1;
+	cs35l41->channel_index = 0;
+	cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, 0, 0, 2);
+	hw_cfg->spk_pos = cs35l41->index;
+	hw_cfg->bst_type = CS35L41_EXT_BOOST;
+	hw_cfg->gpio1.func = CS35l41_VSPK_SWITCH;
+	hw_cfg->gpio1.valid = true;
+	hw_cfg->gpio2.func = CS35L41_INTERRUPT;
+	hw_cfg->gpio2.valid = true;
+
+	if (strcmp(cs35l41->acpi_subsystem_id, "10431473") == 0
+		|| strcmp(cs35l41->acpi_subsystem_id, "10431483") == 0
+		|| strcmp(cs35l41->acpi_subsystem_id, "10431493") == 0) {
+		cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 1, GPIOD_OUT_HIGH);
+	} else {
+		cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 0, GPIOD_OUT_HIGH);
+	}
+
+	hw_cfg->valid = true;
+
+	return 0;
+}
+
 struct cs35l41_prop_model {
 	const char *hid;
 	const char *ssid;
@@ -53,6 +88,18 @@ struct cs35l41_prop_model {
 const struct cs35l41_prop_model cs35l41_prop_model_table[] = {
 	{ "CLSA0100", NULL, lenovo_legion_no_acpi },
 	{ "CLSA0101", NULL, lenovo_legion_no_acpi },
+	{ "CSC3551", "10431433", asus_rog_2023_spkr_id2 }, // ASUS GS650P - i2c
+	{ "CSC3551", "10431463", asus_rog_2023_spkr_id2 }, // ASUS GA402X/N - i2c
+	{ "CSC3551", "10431473", asus_rog_2023_spkr_id2 }, // ASUS GU604V - spi, reset gpio 1
+	{ "CSC3551", "10431483", asus_rog_2023_spkr_id2 }, // ASUS GU603V - spi, reset gpio 1
+	{ "CSC3551", "10431493", asus_rog_2023_spkr_id2 }, // ASUS GV601V - spi, reset gpio 1
+	{ "CSC3551", "10431573", asus_rog_2023_spkr_id2 }, // ASUS GZ301V - spi, reset gpio 0
+	{ "CSC3551", "104317F3", asus_rog_2023_spkr_id2 }, // ASUS ROG ALLY - i2c
+	{ "CSC3551", "10431B93", asus_rog_2023_spkr_id2 }, // ASUS G614J - spi, reset gpio 0
+	{ "CSC3551", "10431CAF", asus_rog_2023_spkr_id2 }, // ASUS G634J - spi, reset gpio 0
+	{ "CSC3551", "10431C9F", asus_rog_2023_spkr_id2 }, // ASUS G614JI -spi, reset gpio 0
+	{ "CSC3551", "10431D1F", asus_rog_2023_spkr_id2 }, // ASUS G713P - i2c
+	{ "CSC3551", "10431F1F", asus_rog_2023_spkr_id2 }, // ASUS H7604JV - spi, reset gpio 0
 	{}
 };
 
-- 
2.41.0

From f2e032c25d0fac01e8272176c71d5080e0123081 Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Mon, 28 Aug 2023 11:05:16 +1200
Subject: [PATCH 12/13] platform/x86: asus-wmi: corrections to egpu safety
 check

An incorrect if statement was preventing the enablement of the egpu.

Fixes: 1bddf53ccac0 ("platform/x86: asus-wmi: don't allow eGPU switching if eGPU not connected")
Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 496d03e88595..13547e55ae82 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -726,19 +726,18 @@ static ssize_t egpu_enable_store(struct device *dev,
 		return -EINVAL;
 
 	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
-	if (err < 0)
-		return err;
-	if (err < 1) {
-		err = -ENODEV;
-		pr_warn("Failed to set egpu disable: %d\n", err);
+	if (err < 0) {
+		pr_warn("Failed to get egpu connection status: %d\n", err);
 		return err;
 	}
 
 	if (asus->gpu_mux_mode_available) {
 		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
-		if (result < 0)
+		if (result < 0) {
 			/* An error here may signal greater failure of GPU handling */
+			pr_warn("Failed to get gpu mux status: %d\n", err);
 			return result;
+		}
 		if (!result && enable) {
 			err = -ENODEV;
 			pr_warn("Can not enable eGPU when the MUX is in dGPU mode: %d\n", err);
@@ -748,12 +747,12 @@ static ssize_t egpu_enable_store(struct device *dev,
 
 	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
 	if (err) {
-		pr_warn("Failed to set egpu disable: %d\n", err);
+		pr_warn("Failed to set egpu state: %d\n", err);
 		return err;
 	}
 
 	if (result > 1) {
-		pr_warn("Failed to set egpu disable (retval): 0x%x\n", result);
+		pr_warn("Failed to set egpu state (retval): 0x%x\n", result);
 		return -EIO;
 	}
 
-- 
2.41.0

From cc5628b9a4c5fea304346202f753b48bc8f6c622 Mon Sep 17 00:00:00 2001
From: "Luke D. Jones" <luke@ljones.dev>
Date: Sun, 30 Apr 2023 10:56:34 +1200
Subject: [PATCH 13/13] platform/x86: asus-wmi: add support for ASUS screenpad

Add support for the WMI methods used to turn off and adjust the
brightness of the secondary "screenpad" device found on some high-end
ASUS laptops like the GX650P series and others.

These methods are utilised in a new backlight device named asus_screenpad.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
---
 drivers/platform/x86/asus-wmi.c            | 131 +++++++++++++++++++++
 drivers/platform/x86/asus-wmi.h            |   1 +
 include/linux/platform_data/x86/asus-wmi.h |   4 +
 3 files changed, 136 insertions(+)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 13547e55ae82..2801c691133a 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -25,6 +25,7 @@
 #include <linux/input/sparse-keymap.h>
 #include <linux/kernel.h>
 #include <linux/leds.h>
+#include <linux/minmax.h>
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/pci_hotplug.h>
@@ -127,6 +128,9 @@ module_param(fnlock_default, bool, 0444);
 #define NVIDIA_TEMP_MIN		75
 #define NVIDIA_TEMP_MAX		87
 
+#define ASUS_SCREENPAD_BRIGHT_MIN 20
+#define ASUS_SCREENPAD_BRIGHT_MAX 255
+
 static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
 
 static int throttle_thermal_policy_write(struct asus_wmi *);
@@ -212,6 +216,7 @@ struct asus_wmi {
 
 	struct input_dev *inputdev;
 	struct backlight_device *backlight_device;
+	struct backlight_device *screenpad_backlight_device;
 	struct platform_device *platform_device;
 
 	struct led_classdev wlan_led;
@@ -3776,6 +3781,123 @@ static int is_display_toggle(int code)
 	return 0;
 }
 
+/* Screenpad backlight *******************************************************/
+
+static int read_screenpad_backlight_power(struct asus_wmi *asus)
+{
+	int ret;
+
+	ret = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_SCREENPAD_POWER);
+	if (ret < 0)
+		return ret;
+	/* 1 == powered */
+	return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
+}
+
+static int read_screenpad_brightness(struct backlight_device *bd)
+{
+	struct asus_wmi *asus = bl_get_data(bd);
+	u32 retval;
+	int err;
+
+	err = read_screenpad_backlight_power(asus);
+	if (err < 0)
+		return err;
+	/* The device brightness can only be read if powered, so return stored */
+	if (err == FB_BLANK_POWERDOWN)
+		return asus->driver->screenpad_brightness;
+
+	err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &retval);
+	if (err < 0)
+		return err;
+
+	return (retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK) - ASUS_SCREENPAD_BRIGHT_MIN;
+}
+
+static int update_screenpad_bl_status(struct backlight_device *bd)
+{
+	struct asus_wmi *asus = bl_get_data(bd);
+	int power, err = 0;
+	u32 ctrl_param;
+
+	power = read_screenpad_backlight_power(asus);
+	if (power < 0)
+		return power;
+
+	if (bd->props.power != power) {
+		if (power != FB_BLANK_UNBLANK) {
+			/* Only brightness > 0 can power it back on */
+			ctrl_param = max(ASUS_SCREENPAD_BRIGHT_MIN, asus->driver->screenpad_brightness);
+			err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT,
+						    ctrl_param, NULL);
+		} else {
+			err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_POWER, 0, NULL);
+		}
+	} else if (power == FB_BLANK_UNBLANK) {
+		/* Only set brightness if powered on or we get invalid/unsync state */
+		ctrl_param = bd->props.brightness + ASUS_SCREENPAD_BRIGHT_MIN;
+		err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT, ctrl_param, NULL);
+	}
+
+	/* Ensure brightness is stored to turn back on with */
+	asus->driver->screenpad_brightness = bd->props.brightness + ASUS_SCREENPAD_BRIGHT_MIN;
+
+	return err;
+}
+
+static const struct backlight_ops asus_screenpad_bl_ops = {
+	.get_brightness = read_screenpad_brightness,
+	.update_status = update_screenpad_bl_status,
+	.options = BL_CORE_SUSPENDRESUME,
+};
+
+static int asus_screenpad_init(struct asus_wmi *asus)
+{
+	struct backlight_device *bd;
+	struct backlight_properties props;
+	int err, power;
+	int brightness = 0;
+
+	power = read_screenpad_backlight_power(asus);
+	if (power < 0)
+		return power;
+
+	if (power != FB_BLANK_POWERDOWN) {
+		err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &brightness);
+		if (err < 0)
+			return err;
+	}
+	/* default to an acceptable min brightness on boot if too low */
+	if (brightness < ASUS_SCREENPAD_BRIGHT_MIN)
+		brightness = ASUS_SCREENPAD_BRIGHT_MIN;
+
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.type = BACKLIGHT_RAW; /* ensure this bd is last to be picked */
+	props.max_brightness = ASUS_SCREENPAD_BRIGHT_MAX - ASUS_SCREENPAD_BRIGHT_MIN;
+	bd = backlight_device_register("asus_screenpad",
+				       &asus->platform_device->dev, asus,
+				       &asus_screenpad_bl_ops, &props);
+	if (IS_ERR(bd)) {
+		pr_err("Could not register backlight device\n");
+		return PTR_ERR(bd);
+	}
+
+	asus->screenpad_backlight_device = bd;
+	asus->driver->screenpad_brightness = brightness;
+	bd->props.brightness = brightness;
+	bd->props.power = power;
+	backlight_update_status(bd);
+
+	return 0;
+}
+
+static void asus_screenpad_exit(struct asus_wmi *asus)
+{
+	backlight_device_unregister(asus->screenpad_backlight_device);
+
+	asus->screenpad_backlight_device = NULL;
+}
+
 /* Fn-lock ********************************************************************/
 
 static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
@@ -4431,6 +4553,12 @@ static int asus_wmi_add(struct platform_device *pdev)
 	} else if (asus->driver->quirks->wmi_backlight_set_devstate)
 		err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
 
+	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT)) {
+		err = asus_screenpad_init(asus);
+		if (err && err != -ENODEV)
+			goto fail_screenpad;
+	}
+
 	if (asus_wmi_has_fnlock_key(asus)) {
 		asus->fnlock_locked = fnlock_default;
 		asus_wmi_fnlock_update(asus);
@@ -4454,6 +4582,8 @@ static int asus_wmi_add(struct platform_device *pdev)
 	asus_wmi_backlight_exit(asus);
 fail_backlight:
 	asus_wmi_rfkill_exit(asus);
+fail_screenpad:
+	asus_screenpad_exit(asus);
 fail_rfkill:
 	asus_wmi_led_exit(asus);
 fail_leds:
@@ -4480,6 +4610,7 @@ static int asus_wmi_remove(struct platform_device *device)
 	asus = platform_get_drvdata(device);
 	wmi_remove_notify_handler(asus->driver->event_guid);
 	asus_wmi_backlight_exit(asus);
+	asus_screenpad_exit(asus);
 	asus_wmi_input_exit(asus);
 	asus_wmi_led_exit(asus);
 	asus_wmi_rfkill_exit(asus);
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index a478ebfd34df..5fbdd0eafa02 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -57,6 +57,7 @@ struct quirk_entry {
 struct asus_wmi_driver {
 	int			brightness;
 	int			panel_power;
+	int			screenpad_brightness;
 	int			wlan_ctrl_by_user;
 
 	const char		*name;
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index 16e99a1c37fc..63e630276499 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -58,6 +58,10 @@
 #define ASUS_WMI_DEVID_KBD_BACKLIGHT	0x00050021
 #define ASUS_WMI_DEVID_LIGHT_SENSOR	0x00050022 /* ?? */
 #define ASUS_WMI_DEVID_LIGHTBAR		0x00050025
+/* This can only be used to disable the screen, not re-enable */
+#define ASUS_WMI_DEVID_SCREENPAD_POWER	0x00050031
+/* Writing a brightness re-enables the screen if disabled */
+#define ASUS_WMI_DEVID_SCREENPAD_LIGHT	0x00050032
 #define ASUS_WMI_DEVID_FAN_BOOST_MODE	0x00110018
 #define ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY 0x00120075
 
-- 
2.41.0