linux-kernel - [PATCH 0/4] platform/x86: ideapad-laptop: synchronize VPC commands

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Message-ID: <cover.1720515666.git.soyer@irl.hu>
Date: Tue,  9 Jul 2024 11:33:04 +0200
From: Gergo Koteles <soyer@....hu>
To: Hans de Goede <hdegoede@...hat.com>,
  Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
  Ike Panhc <ike.pan@...onical.com>
Cc: platform-driver-x86@...r.kernel.org,
  linux-kernel@...r.kernel.org, Gergo Koteles <soyer@....hu>
Subject: [PATCH 0/4] platform/x86: ideapad-laptop: synchronize VPC commands

Hi,

Sometimes the Yoga mode control switch did not work properly on my 
laptop, and sometimes even caused a platform profile switch. It turned 
out that it was caused by a race situation, the lenovo-ymc wmi notify 
handler was running at the same time as the ideapad-laptop acpi notify 
handler, and the partial results of the VPC calls in the two were mixed 
up.

This series introduces a mutex and reorganizes the code a bit to 
eliminate this.

Best regards,
Gergo Koteles

Gergo Koteles (4):
  platform/x86: ideapad-laptop: use cleanup.h
  platform/x86: ideapad-laptop: add a mutex to synchronize VPC commands
  platform/x86: ideapad-laptop: move ymc_trigger_ec from lenovo-ymc
  platform/x86: ideapad-laptop: move ACPI helpers from header to source
    file

 drivers/platform/x86/Kconfig          |   1 +
 drivers/platform/x86/ideapad-laptop.c | 284 +++++++++++++++++++++-----
 drivers/platform/x86/ideapad-laptop.h | 140 +------------
 drivers/platform/x86/lenovo-ymc.c     |  34 +--
 4 files changed, 235 insertions(+), 224 deletions(-)

-- 
2.45.2