linux-kernel - [PATCH v2 4/4] platform/x86/intel/wmi: thunderbolt: Use bus-based WMI interface

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Date:   Fri,  3 Nov 2023 19:25:26 +0100
From:   Armin Wolf <W_Armin@....de>
To:     jithu.joseph@...el.com, hdegoede@...hat.com, markgross@...nel.org,
        ilpo.jarvinen@...ux.intel.com
Cc:     Dell.Client.Kernel@...l.com, platform-driver-x86@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 4/4] platform/x86/intel/wmi: thunderbolt: Use bus-based WMI interface

Currently, the driver still uses the legacy GUID-based interface
to invoke WMI methods. Use the modern bus-based interface instead.

Tested on a Lenovo E51-80.

Signed-off-by: Armin Wolf <W_Armin@....de>
---
Changes in v2:
- fix spelling issue
---
 drivers/platform/x86/intel/wmi/thunderbolt.c | 3 +--
 drivers/platform/x86/wmi.c                   | 1 +
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/intel/wmi/thunderbolt.c b/drivers/platform/x86/intel/wmi/thunderbolt.c
index fc333ff82d1e..e2ad3f46f356 100644
--- a/drivers/platform/x86/intel/wmi/thunderbolt.c
+++ b/drivers/platform/x86/intel/wmi/thunderbolt.c
@@ -32,8 +32,7 @@ static ssize_t force_power_store(struct device *dev,
 	mode = hex_to_bin(buf[0]);
 	dev_dbg(dev, "force_power: storing %#x\n", mode);
 	if (mode == 0 || mode == 1) {
-		status = wmi_evaluate_method(INTEL_WMI_THUNDERBOLT_GUID, 0, 1,
-					     &input, NULL);
+		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;
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 4c4effc883ae..cb7e74f2b009 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -107,6 +107,7 @@ static const char * const allow_duplicates[] = {
 	"05901221-D566-11D1-B2F0-00A0C9062910",	/* wmi-bmof */
 	"8A42EA14-4F2A-FD45-6422-0087F7A7E608",	/* dell-wmi-ddv */
 	"44FADEB1-B204-40F2-8581-394BBDC1B651",	/* intel-wmi-sbl-fw-update */
+	"86CCFD48-205E-4A77-9C48-2021CBEDE341",	/* intel-wmi-thunderbolt */
 	NULL
 };

--
2.39.2