Merge tag 'amlogic-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman...

[linux.git] / drivers / hid / hid-rmi.c

diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index 9e33165250a34c7acf49e5e43c0a8ea482fdb1ec..7c6abd7e09797c8974dfb4f0db3551169a4d478c 100644 (file)
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *  Copyright (c) 2013 Andrew Duggan <aduggan@synaptics.com>
  *  Copyright (c) 2013 Synaptics Incorporated
  *  Copyright (c) 2014 Benjamin Tissoires <benjamin.tissoires@gmail.com>
  *  Copyright (c) 2014 Red Hat, Inc
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
  */
 
 #include <linux/kernel.h>
@@ -39,6 +35,7 @@
 /* device flags */
 #define RMI_DEVICE                     BIT(0)
 #define RMI_DEVICE_HAS_PHYS_BUTTONS    BIT(1)
+#define RMI_DEVICE_OUTPUT_SET_REPORT   BIT(2)
 
 /*
  * retrieve the ctrl registers
@@ -167,9 +164,19 @@ static int rmi_set_mode(struct hid_device *hdev, u8 mode)
 
 static int rmi_write_report(struct hid_device *hdev, u8 *report, int len)
 {
+       struct rmi_data *data = hid_get_drvdata(hdev);
        int ret;
 
-       ret = hid_hw_output_report(hdev, (void *)report, len);
+       if (data->device_flags & RMI_DEVICE_OUTPUT_SET_REPORT) {
+               /*
+                * Talk to device by using SET_REPORT requests instead.
+                */
+               ret = hid_hw_raw_request(hdev, report[0], report,
+                               len, HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
+       } else {
+               ret = hid_hw_output_report(hdev, (void *)report, len);
+       }
+
        if (ret < 0) {
                dev_err(&hdev->dev, "failed to write hid report (%d)\n", ret);
                return ret;
@@ -751,6 +758,8 @@ static const struct hid_device_id rmi_id[] = {
                .driver_data = RMI_DEVICE_HAS_PHYS_BUTTONS },
        { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_COVER) },
        { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_REZEL) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5),
+               .driver_data = RMI_DEVICE_OUTPUT_SET_REPORT },
        { HID_DEVICE(HID_BUS_ANY, HID_GROUP_RMI, HID_ANY_ID, HID_ANY_ID) },
        { }
 };