toshiba_acpi: Add a module parameter to disable hotkeys registration

Some laptop models have working hotkeys without the need of the driver
to activate them.

This patch adds a module parameter to tell the driver not to register
the hotkeys.

The new parameter is useful in DE less installations or where the DE
does not handle the hotkeys (see bug 99501).

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>

diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 5ace1e0fd0bd1e2b3c7bd1afccc95b0c3534bf6c..df1f1a76a8629fdf4c1b709ff519040ffad18552 100644 (file)
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -36,6 +36,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/proc_fs.h>
@@ -220,6 +221,10 @@ struct toshiba_acpi_dev {
 
 static struct toshiba_acpi_dev *toshiba_acpi;
 
+static bool disable_hotkeys;
+module_param(disable_hotkeys, bool, 0444);
+MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
+
 static const struct acpi_device_id toshiba_device_ids[] = {
        {"TOS6200", 0},
        {"TOS6207", 0},
@@ -2692,6 +2697,11 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
        acpi_handle ec_handle;
        int error;
 
+       if (disable_hotkeys) {
+               pr_info("Hotkeys disabled by module parameter\n");
+               return 0;
+       }
+
        if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
                pr_info("WMI event detected, hotkeys will not be monitored\n");
                return 0;