1. 21 11月, 2017 1 次提交
    • L
      ACPI / EC: Fix regression related to PM ops support in ECDT device · a64a62ce
      Lv Zheng 提交于
      On platforms (ASUS X550ZE and possibly all ASUS X series) with valid ECDT
      EC but invalid DSDT EC, EC PM ops won't be invoked as ECDT EC is not an
      ACPI device. Thus the following commit actually removed post-resume
      acpi_ec_enable_event() invocation for such platforms, and triggered a
      regression on them that after being resumed, EC (actually should be ECDT)
      driver stops handling EC events:
      
       Commit: c2b46d67
       Subject: ACPI / EC: Add PM operations to improve event handling for resume process
      
      Notice that the root cause actually is "ECDT is not an ACPI device" rather
      than "the timing of acpi_ec_enable_event() invocation", this patch fixes
      this issue by enumerating ECDT EC as an ACPI device. Due to the existence
      of the noirq stage, the ability of tuning the timing of
      acpi_ec_enable_event() invocation is still meaningful.
      
      This patch is a little bit different from the posted fix by moving
      acpi_config_boot_ec() from acpi_ec_ecdt_start() to acpi_ec_add() to make
      sure that EC event handling won't be stopped as long as the ACPI EC driver
      is bound. Thus the following sequence shouldn't disable EC event handling:
      unbind,suspend,resume,bind.
      
      Fixes: c2b46d67 (ACPI / EC: Add PM operations to improve event handling for resume process)
      Link: https://bugzilla.kernel.org/show_bug.cgi?id=196847Reported-by: NLuya Tshimbalanga <luya@fedoraproject.org>
      Tested-by: NLuya Tshimbalanga <luya@fedoraproject.org>
      Cc: 4.9+ <stable@vger.kernel.org> # 4.9+
      Signed-off-by: NLv Zheng <lv.zheng@intel.com>
      Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      a64a62ce
  2. 18 11月, 2017 6 次提交
  3. 16 11月, 2017 33 次提交
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