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input: touchscreen: nt36xxx: Use disable/enable irq wake in LA to LE

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Touch uses gpio as irq in LA. As per latest change from pinctrl,
wakeup bit is disabled/enabled when disable_irq/enable_irq is called.
During transtion from LA to LE, disable_irq is called leading to
wakeup bit getting disabled and in LE Touch interrupts does not come.
So, use disable_irq_wake to disable Touch interrupts while transition
from LA to LE and use enable_irq_wake to enable back Touch interrupts
while transition from LE to LA.

Change-Id: Iad3391af40535d51daeef881c3d62b3ec893fff2
Signed-off-by: Ritesh Kumar <riteshk@codeaurora.org>
This commit is contained in:
Ritesh Kumar 2021-02-19 12:46:20 +05:30 • committed by Gerrit - the friendly Code Review server
commit e44ea45369
2 changed files with 15 additions and 0 deletions
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14
drivers/input/touchscreen/nt36xxx/nt36xxx.c
View file

@ -725,6 +725,7 @@ static void nvt_ts_trusted_touch_abort_pvm(struct nvt_ts_data *ts)
case TRUSTED_TOUCH_PVM_INIT:
case PVM_I2C_RESOURCE_RELEASED:
atomic_set(&ts->trusted_touch_enabled, 0);
atomic_set(&ts->trusted_touch_underway, 0);
}
atomic_set(&ts->trusted_touch_abort_status, 0);
@ -835,6 +836,7 @@ static void nvt_trusted_touch_pvm_vm_mode_disable(struct nvt_ts_data *ts)
nvt_ts_trusted_touch_set_pvm_driver_state(ts,
TRUSTED_TOUCH_PVM_INIT);
atomic_set(&ts->trusted_touch_enabled, 0);
atomic_set(&ts->trusted_touch_underway, 0);
pr_info("trusted touch disabled\n");
return;
error:
@ -973,6 +975,7 @@ static int nvt_ts_trusted_touch_pvm_vm_mode_enable(struct nvt_ts_data *ts)
int rc = 0;
struct trusted_touch_vm_info *vm_info = ts->vm_info;
atomic_set(&ts->trusted_touch_underway, 1);
/* i2c session start and resource acquire */
if (nvt_ts_bus_get(ts) < 0) {
pr_err("nvt_ts_bus_get failed\n");
@ -1208,12 +1211,23 @@ static void nvt_irq_enable(bool enable)
if (enable) {
if (!ts->irq_enabled) {
#ifdef CONFIG_NOVATEK_TRUSTED_TOUCH
/* trusted_touch_underway is set in LA only */
if (atomic_read(&ts->trusted_touch_underway))
enable_irq_wake(ts->client->irq);
#else
enable_irq(ts->client->irq);
#endif
ts->irq_enabled = true;
}
} else {
if (ts->irq_enabled) {
#ifdef CONFIG_NOVATEK_TRUSTED_TOUCH
if (atomic_read(&ts->trusted_touch_underway))
disable_irq_wake(ts->client->irq);
#else
disable_irq(ts->client->irq);
#endif
ts->irq_enabled = false;
}
}

1
drivers/input/touchscreen/nt36xxx/nt36xxx.h
View file

@ -202,6 +202,7 @@ struct nvt_ts_data {
struct clk *iface_clk;
atomic_t trusted_touch_initialized;
atomic_t trusted_touch_enabled;
atomic_t trusted_touch_underway;
atomic_t trusted_touch_event;
atomic_t trusted_touch_abort_status;
atomic_t delayed_vm_probe_pending;