platform/x86/intel/wmi: thunderbolt: Use new buffer-based WMI API

Use the new buffer-based WMI API to avoid having to deal with ACPI
at all.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260116204116.4030-7-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Author: Wer-Wolf

drivers/platform/x86/intel/wmi/thunderbolt.c

@@ -7,7 +7,6 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <linux/acpi.h>
 #include <linux/device.h>
 #include <linux/fs.h>
 #include <linux/kernel.h>
@@ -23,24 +22,21 @@ static ssize_t force_power_store(struct device *dev,
 				 struct device_attribute *attr,
 				 const char *buf, size_t count)
 {
-	struct acpi_buffer input;
-	acpi_status status;
+	struct wmi_buffer buffer;
+	int ret;
 	u8 mode;
 
-	input.length = sizeof(u8);
-	input.pointer = &mode;
+	buffer.length = sizeof(mode);
+	buffer.data = &mode;
+
 	mode = hex_to_bin(buf[0]);
-	dev_dbg(dev, "force_power: storing %#x\n", mode);
-	if (mode == 0 || mode == 1) {
-		status = wmidev_evaluate_method(to_wmi_device(dev), 0, 1, &input, NULL);
-		if (ACPI_FAILURE(status)) {
-			dev_dbg(dev, "force_power: failed to evaluate ACPI method\n");
-			return -ENODEV;
-		}
-	} else {
-		dev_dbg(dev, "force_power: unsupported mode\n");
+	if (mode > 1)
 		return -EINVAL;
-	}
+
+	ret = wmidev_invoke_method(to_wmi_device(dev), 0, 1, &buffer, NULL);
+	if (ret < 0)
+		return ret;
+
 	return count;
 }