Patch "platform/x86: intel-vbtn: Stop calling "VBDL" from notify_handler" has been added to the 5.15-stable tree

Patch "platform/x86: intel-vbtn: Stop calling "VBDL" from notify_handler" has been added to the 5.15-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    platform/x86: intel-vbtn: Stop calling "VBDL" from notify_handler

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     platform-x86-intel-vbtn-stop-calling-vbdl-from-notify_handler.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


From 84c16d01ff219bc0a5dca5219db6b8b86a6854fb Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 16 Feb 2024 21:33:00 +0100
Subject: platform/x86: intel-vbtn: Stop calling "VBDL" from notify_handler

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

commit 84c16d01ff219bc0a5dca5219db6b8b86a6854fb upstream.

Commit 14c200b7ca46 ("platform/x86: intel-vbtn: Fix missing
tablet-mode-switch events") causes 2 issues on the ThinkPad X1 Tablet Gen2:

1. The ThinkPad will wake up immediately from suspend
2. When put in tablet mode SW_TABLET_MODE reverts to 0 after about 1 second

Both these issues are caused by the "VBDL" ACPI method call added
at the end of the notify_handler.

And it never became entirely clear if this call is even necessary to fix
the issue of missing tablet-mode-switch events on the Dell Inspiron 7352.

Drop the "VBDL" ACPI method call again to fix the 2 issues this is
causing on the ThinkPad X1 Tablet Gen2.

Fixes: 14c200b7ca46 ("platform/x86: intel-vbtn: Fix missing tablet-mode-switch events")
Reported-by: Alexander Kobel <a-kobel@a-kobel.de>
Closes: https://lore.kernel.org/platform-driver-x86/295984ce-bd4b-49bd-adc5-ffe7c898d7f0@a-kobel.de/
Cc: regressions@lists.linux.dev
Cc: Arnold Gozum <arngozum@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Alexander Kobel <a-kobel@a-kobel.de>
Link: https://lore.kernel.org/r/20240216203300.245826-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/platform/x86/intel/vbtn.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/platform/x86/intel/vbtn.c b/drivers/platform/x86/intel/vbtn.c
index 210b0a81b7ec..084c355c86f5 100644
--- a/drivers/platform/x86/intel/vbtn.c
+++ b/drivers/platform/x86/intel/vbtn.c
@@ -200,9 +200,6 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
 	autorelease = val && (!ke_rel || ke_rel->type == KE_IGNORE);
 
 	sparse_keymap_report_event(input_dev, event, val, autorelease);
-
-	/* Some devices need this to report further events */
-	acpi_evaluate_object(handle, "VBDL", NULL, NULL);
 }
 
 /*
-- 
2.44.0



Patches currently in stable-queue which might be from hdegoede@redhat.com are

queue-5.15/platform-x86-touchscreen_dmi-add-info-for-the-teclas.patch
queue-5.15/ahci-asm1166-correct-count-of-reported-ports.patch
queue-5.15/platform-x86-intel-vbtn-stop-calling-vbdl-from-notify_handler.patch
queue-5.15/platform-x86-touchscreen_dmi-allow-partial-prefix-matches-for-acpi-names.patch