61 lines
2.7 KiB
Diff
61 lines
2.7 KiB
Diff
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From 674e10330546921dca7308fad44f593741f8db23 Mon Sep 17 00:00:00 2001
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From: Danct12 <danct12@disroot.org>
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Date: Tue, 17 Mar 2020 10:16:31 +0700
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Subject: [PATCH] driver: touchscreen: nvt_touch_f7a: do not report
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ABS_MT_TOUCH_MAJOR/ABS_MT_WIDTH_MAJOR
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It seems touchscreen chip can only report touch pressure from 0 to 255,
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which should be ABS_MT_PRESSURE according to
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https://www.kernel.org/doc/Documentation/input/multi-touch-protocol.txt.
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Do not set same values to ABS_MT_TOUCH_MAJOR/ABS_MT_WIDTH_MAJOR to avoid
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breaking libinput and software.
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Thanks @NotKit!
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Signed-off-by: Danct12 <danct12@disroot.org>
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---
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drivers/input/touchscreen/nvt_touch_f7a/nt36xxx.c | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/drivers/input/touchscreen/nvt_touch_f7a/nt36xxx.c b/drivers/input/touchscreen/nvt_touch_f7a/nt36xxx.c
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index 9a3c1638b6a2..ad4dda241145 100644
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--- a/drivers/input/touchscreen/nvt_touch_f7a/nt36xxx.c
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+++ b/drivers/input/touchscreen/nvt_touch_f7a/nt36xxx.c
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@@ -1030,7 +1030,7 @@ static void nvt_ts_work_func(struct work_struct *work)
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input_report_abs(ts->input_dev, ABS_MT_POSITION_X, input_x);
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input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, input_y);
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#if ENABLE_TOUCH_SZIE
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- input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, input_w);
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+ //input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, input_w);
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#endif
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input_report_abs(ts->input_dev, ABS_MT_PRESSURE, input_p);
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@@ -1048,7 +1048,7 @@ static void nvt_ts_work_func(struct work_struct *work)
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if (press_id[i] != 1) {
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input_mt_slot(ts->input_dev, i);
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#if ENABLE_TOUCH_SZIE
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- input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
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+ //input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
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#endif
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input_report_abs(ts->input_dev, ABS_MT_PRESSURE, 0);
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input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false);
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@@ -1427,7 +1427,7 @@ static int32_t nvt_ts_probe(struct i2c_client *client, const struct i2c_device_i
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#if TOUCH_MAX_FINGER_NUM > 1
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#if ENABLE_TOUCH_SZIE
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- input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
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+ //input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
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#endif
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input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, 0, ts->abs_x_max-1, 0, 0);
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input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, 0, ts->abs_y_max-1, 0, 0);
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@@ -1708,7 +1708,7 @@ static int32_t nvt_ts_suspend(struct device *dev)
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for (i = 0; i < ts->max_touch_num; i++) {
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input_mt_slot(ts->input_dev, i);
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#if ENABLE_TOUCH_SZIE
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- input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
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+ //input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
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#endif
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input_report_abs(ts->input_dev, ABS_MT_PRESSURE, 0);
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input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, 0);
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