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input: fix the disappearance of ili7807s stylus handwriting

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Fingers touch the screen when stylus writing, resulting in the disappearance of handwriting.
In DDA mode, app reads the absolute value of pressure. Modify the reporting of pressure value to fix the problem.

Change-Id: I4b4c6d45f5099a5b895fb49dc1ac70f8950b7152
Reviewed-on: https://gerrit.mot.com/2497928
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Yeqing Wang <wangyq13@motorola.com>
Reviewed-by: Jun Weng <wengjun1@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Xiaojun Lv 2023-01-31 11:01:40 +08:00 • committed by lvxj4
commit 3af870153b
2 changed files with 2 additions and 2 deletions
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2
drivers/input/touchscreen/ili9882_mmi/ili9882_qcom.c
View file

@ -108,7 +108,7 @@ void ili_input_register(void)
}
if (MT_PRESSURE)
input_set_abs_params(ilits->input, ABS_MT_PRESSURE, 0, 255, 0, 0);
input_set_abs_params(ilits->input, ABS_MT_PRESSURE, 0, 1000, 0, 0);
if (MT_B_TYPE) {
#if KERNEL_VERSION(3, 7, 0) <= LINUX_VERSION_CODE

2
drivers/input/touchscreen/ili9882_mmi/ili9882_touch.c
View file

@ -1040,7 +1040,7 @@ void ili_report_ap_mode(u8 *buf, int len)
if (MT_PRESSURE) {
if (TOUCH_WIDTH) {
touch_info[ilits->finger].pressure = buf[(4 * i) + 4 + P5_X_DEMO_MODE_PACKET_INFO_LEN];
touch_info[ilits->finger].pressure =(buf[(4 * i) + 4 + P5_X_DEMO_MODE_PACKET_INFO_LEN])<<2;
} else {
touch_info[ilits->finger].pressure = buf[(4 * i) + 4];
}