This reverts commit 5fe2ccbef9d7aecf5c4402c753444f1a12096cfd.

It turns out the current API is not that compatible with
some Microsoft mice, so better start again from scratch.

Signed-off-by: Benjamin Tissoires <[email protected]>
---
 drivers/hid/hid-logitech-hidpp.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index f01280898b24..5f0c080059c6 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -1231,6 +1231,7 @@ static int hidpp_hrw_get_wheel_capability(struct 
hidpp_device *hidpp,
        *multiplier = response.fap.params[0];
        return 0;
 return_default:
+       *multiplier = 8;
        hid_warn(hidpp->hid_dev,
                 "Couldn't get wheel multiplier (error %d), assuming %d.\n",
                 ret, *multiplier);
@@ -2695,7 +2696,7 @@ static int hi_res_scroll_look_up_microns(__u32 product_id)
 static int hi_res_scroll_enable(struct hidpp_device *hidpp)
 {
        int ret;
-       u8 multiplier = 8;
+       u8 multiplier;
 
        if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_X2121) {
                ret = hidpp_hrw_set_wheel_mode(hidpp, false, true, false);
@@ -2703,9 +2704,10 @@ static int hi_res_scroll_enable(struct hidpp_device 
*hidpp)
        } else if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_X2120) {
                ret = hidpp_hrs_set_highres_scrolling_mode(hidpp, true,
                                                           &multiplier);
-       } else /* if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_1P0) */
+       } else /* if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_1P0) */ {
                ret = hidpp10_enable_scrolling_acceleration(hidpp);
-
+               multiplier = 8;
+       }
        if (ret)
                return ret;
 
-- 
2.19.1

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