linux-kernel - [PATCH AUTOSEL 5.4 02/15] platform/x86: asus-nb-wmi: Revert "Do not load on Asus T100TA and T200TA"

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Date:   Mon, 12 Oct 2020 15:02:59 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Sasha Levin <sashal@...nel.org>,
        acpi4asus-user@...ts.sourceforge.net,
        platform-driver-x86@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 02/15] platform/x86: asus-nb-wmi: Revert "Do not load on Asus T100TA and T200TA"

From: Hans de Goede <hdegoede@...hat.com>

[ Upstream commit aab9e7896ec98b2a6b4eeeed71cc666776bb8def ]

The WMI INIT method on for some reason turns on the camera LED on these
2-in-1s, without the WMI interface allowing further control over the LED.

To fix this commit b5f7311d3a2e ("platform/x86: asus-nb-wmi: Do not load
on Asus T100TA and T200TA") added a blacklist with these 2 models on it
since the WMI driver did not add any extra functionality to these models.

Recently I've been working on making more 2-in-1 models report their
tablet-mode (SW_TABLET_MODE) to userspace; and I've found that these 2
Asus models report this through WMI. This commit reverts the adding
of the blacklist, so that the Asus WMI driver can be used on these
models to report their tablet-mode.

Note, not calling INIT is also not an option, because then we will not
receive events when the tablet-mode changes. So the LED issue will need
to be fixed somewhere else entirely.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/platform/x86/asus-nb-wmi.c | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index 59b78a181723b..fef739effa283 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -596,33 +596,9 @@ static struct asus_wmi_driver asus_nb_wmi_driver = {
 	.detect_quirks = asus_nb_wmi_quirks,
 };
 
-static const struct dmi_system_id asus_nb_wmi_blacklist[] __initconst = {
-	{
-		/*
-		 * asus-nb-wm adds no functionality. The T100TA has a detachable
-		 * USB kbd, so no hotkeys and it has no WMI rfkill; and loading
-		 * asus-nb-wm causes the camera LED to turn and _stay_ on.
-		 */
-		.matches = {
-			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
-		},
-	},
-	{
-		/* The Asus T200TA has the same issue as the T100TA */
-		.matches = {
-			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
-			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T200TA"),
-		},
-	},
-	{} /* Terminating entry */
-};
 
 static int __init asus_nb_wmi_init(void)
 {
-	if (dmi_check_system(asus_nb_wmi_blacklist))
-		return -ENODEV;
-
 	return asus_wmi_register_driver(&asus_nb_wmi_driver);
 }
 
-- 
2.25.1