This is a note to let you know that I've just added the patch titled platform/x86: acer-wmi: setup accelerometer when machine has appropriate notify event to the 4.9-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-acer-wmi-setup-accelerometer-when-machine-has-appropriate-notify-event.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 98d610c3739ac354319a6590b915f4624d9151e6 Mon Sep 17 00:00:00 2001 From: "Lee, Chun-Yi" <joeyli.kernel@xxxxxxxxx> Date: Thu, 3 Nov 2016 08:18:52 +0800 Subject: platform/x86: acer-wmi: setup accelerometer when machine has appropriate notify event MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Lee, Chun-Yi <joeyli.kernel@xxxxxxxxx> commit 98d610c3739ac354319a6590b915f4624d9151e6 upstream. The accelerometer event relies on the ACERWMID_EVENT_GUID notify. So, this patch changes the codes to setup accelerometer input device when detected ACERWMID_EVENT_GUID. It avoids that the accel input device created on every Acer machines. In addition, patch adds a clearly parsing logic of accelerometer hid to acer_wmi_get_handle_cb callback function. It is positive matching the "SENR" name with "BST0001" device to avoid non-supported hardware. Reported-by: Bjørn Mork <bjorn@xxxxxxx> Cc: Darren Hart <dvhart@xxxxxxxxxxxxx> Signed-off-by: Lee, Chun-Yi <jlee@xxxxxxxx> [andy: slightly massage commit message] Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Cc: Ben Hutchings <ben@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/platform/x86/acer-wmi.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -1846,11 +1846,24 @@ static int __init acer_wmi_enable_lm(voi return status; } +#define ACER_WMID_ACCEL_HID "BST0001" + static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level, void *ctx, void **retval) { + struct acpi_device *dev; + + if (!strcmp(ctx, "SENR")) { + if (acpi_bus_get_device(ah, &dev)) + return AE_OK; + if (!strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev))) + return AE_OK; + } else + return AE_OK; + *(acpi_handle *)retval = ah; - return AE_OK; + + return AE_CTRL_TERMINATE; } static int __init acer_wmi_get_handle(const char *name, const char *prop, @@ -1877,7 +1890,7 @@ static int __init acer_wmi_accel_setup(v { int err; - err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle); + err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle); if (err) return err; @@ -2233,10 +2246,11 @@ static int __init acer_wmi_init(void) err = acer_wmi_input_setup(); if (err) return err; + err = acer_wmi_accel_setup(); + if (err) + return err; } - acer_wmi_accel_setup(); - err = platform_driver_register(&acer_platform_driver); if (err) { pr_err("Unable to register platform driver\n"); Patches currently in stable-queue which might be from joeyli.kernel@xxxxxxxxx are queue-4.9/platform-x86-acer-wmi-setup-accelerometer-when-machine-has-appropriate-notify-event.patch