A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-11 07:03:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

input: touchscreen: nt36xxx: Avoid i2c transfer in LA during TUI

Browse source 
Switching between two TUI layouts, involves TUI current session
abort and start of new TUI session with next layout. In between
two layout transition, if display is touched and next TUI session
is started parallely. Ownership of register space is transferred
to Trusted VM leading to crash during i2c transfer in LA. This
change avoid i2c transfer in LA when TUI session is started.

Change-Id: I2f561fd43d3705c18f83556baac8166ede901605
Signed-off-by: Ritesh Kumar <riteshk@codeaurora.org>
This commit is contained in:
Ritesh Kumar 2021-03-18 12:39:45 +05:30
commit 172ca98496
1 changed files with 9 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

10
drivers/input/touchscreen/nt36xxx/nt36xxx.c
View file

@ -2041,6 +2041,14 @@ static irqreturn_t nvt_ts_work_func(int irq, void *data)
mutex_lock(&ts->lock);
#ifdef CONFIG_NOVATEK_TRUSTED_TOUCH
#ifndef CONFIG_ARCH_QTI_VM
if (nvt_ts_trusted_touch_get_pvm_driver_state(ts) !=
TRUSTED_TOUCH_PVM_INIT)
return IRQ_HANDLED;
#endif
#endif
ret = CTP_I2C_READ(ts->client, I2C_FW_Address, point_data, POINT_DATA_LEN + 1);
if (ret < 0) {
NVT_ERR("CTP_I2C_READ failed.(%d)\n", ret);
@ -3123,7 +3131,7 @@ static int32_t nvt_ts_resume(struct device *dev)
return 0;
}
#ifdef CONFIG_ST_TRUSTED_TOUCH
#ifdef CONFIG_NOVATEK_TRUSTED_TOUCH
if (atomic_read(&ts->trusted_touch_enabled))
wait_for_completion_interruptible(
&ts->trusted_touch_powerdown);