evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

input: touchpanel: fix TP frozen when ST's TP firstly probe up

Browse source 
Set TP to display-unblank status when firstly probe up, so that
TP can detect interrupt and report touch event without press
power key.

Change-Id: I6e4ea48551463c6d0f747987d7c255987e3a11df
Signed-off-by: Jin Fu <jinf@codeaurora.org>
This commit is contained in:
Jin Fu 2017-10-10 14:14:55 +08:00 • committed by Gerrit - the friendly Code Review server
parent 34f1071c18
commit b4b3c42c89
1 changed files with 26 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
drivers/input/touchscreen/st/fts.c
View file

@ -105,7 +105,7 @@ static void fts_interrupt_enable(struct fts_ts_info *info);
static int fts_init_hw(struct fts_ts_info *info);
static int fts_mode_handler(struct fts_ts_info *info, int force);
static int fts_command(struct fts_ts_info *info, unsigned char cmd);
static void fts_unblank(struct fts_ts_info *info);
static int fts_chip_initialization(struct fts_ts_info *info);
void touch_callback(unsigned int status)
@ -1487,8 +1487,12 @@ static int fts_init(struct fts_ts_info *info)
error = fts_interrupt_install(info);
if (error != OK)
if (error != OK) {
logError(1, "%s Init (1) error (ERROR = %08X)\n", error);
return error;
}
fts_unblank(info);
return error;
}
@ -1773,6 +1777,26 @@ static int fts_fb_state_chg_callback(struct notifier_block *nb, unsigned long va
}
static void fts_unblank(struct fts_ts_info *info)
{
int i;
for (i = 0; i < TOUCH_ID_MAX; i++) {
input_mt_slot(info->input_dev, i);
input_mt_report_slot_state(info->input_dev,
(i < FINGER_MAX) ? MT_TOOL_FINGER : MT_TOOL_PEN, 0);
}
input_sync(info->input_dev);
info->resume_bit = 1;
fts_mode_handler(info, 0);
info->sensor_sleep = false;
fts_enableInterrupt();
}
static struct notifier_block fts_noti_block = {
.notifier_call = fts_fb_state_chg_callback,
};