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input: touchscreen: nt36xxx: Block resume work on PVM

Browse source 
While trusted touch is underway, block resume work
to flush touch FIFO since ownership of register space
is with Trusted VM.

Change-Id: Ib87a81aa8f39631ae3f3ea44f4a5dee4563bc514
Signed-off-by: Ritesh Kumar <riteshk@codeaurora.org>
This commit is contained in:
Ritesh Kumar 2021-01-07 02:09:46 +05:30
commit c30aa8dbe9
1 changed files with 7 additions and 3 deletions
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10
drivers/input/touchscreen/nt36xxx/nt36xxx.c
View file

@ -722,7 +722,6 @@ static void nvt_ts_trusted_touch_abort_pvm(struct nvt_ts_data *ts)
case PVM_I2C_RESOURCE_ACQUIRED:
case PVM_INTERRUPT_ENABLED:
nvt_ts_bus_put(ts);
complete(&ts->trusted_touch_powerdown);
case TRUSTED_TOUCH_PVM_INIT:
case PVM_I2C_RESOURCE_RELEASED:
atomic_set(&ts->trusted_touch_enabled, 0);
@ -761,6 +760,7 @@ static int nvt_ts_bus_get(struct nvt_ts_data *ts)
{
int rc = 0;
reinit_completion(&ts->trusted_touch_powerdown);
mutex_lock(&ts->nvt_clk_io_ctrl_mutex);
rc = pm_runtime_get_sync(ts->client->adapter->dev.parent);
if (rc >= 0 && ts->core_clk != NULL &&
@ -781,6 +781,7 @@ static void nvt_ts_bus_put(struct nvt_ts_data *ts)
nvt_ts_clk_disable_unprepare(ts);
pm_runtime_put_sync(ts->client->adapter->dev.parent);
mutex_unlock(&ts->nvt_clk_io_ctrl_mutex);
complete(&ts->trusted_touch_powerdown);
}
static struct hh_notify_vmid_desc *nvt_ts_vm_get_vmid(hh_vmid_t vmid)
@ -831,7 +832,6 @@ static void nvt_trusted_touch_pvm_vm_mode_disable(struct nvt_ts_data *ts)
nvt_ts_bus_put(ts);
nvt_ts_trusted_touch_set_pvm_driver_state(ts,
PVM_I2C_RESOURCE_RELEASED);
complete(&ts->trusted_touch_powerdown);
nvt_ts_trusted_touch_set_pvm_driver_state(ts,
TRUSTED_TOUCH_PVM_INIT);
atomic_set(&ts->trusted_touch_enabled, 0);
@ -1007,7 +1007,6 @@ static int nvt_ts_trusted_touch_pvm_vm_mode_enable(struct nvt_ts_data *ts)
}
nvt_ts_trusted_touch_set_pvm_driver_state(ts, PVM_IRQ_LENT_NOTIFIED);
reinit_completion(&ts->trusted_touch_powerdown);
atomic_set(&ts->trusted_touch_enabled, 1);
pr_info("trusted touch enabled\n");
return rc;
@ -3049,6 +3048,11 @@ static int32_t nvt_ts_resume(struct device *dev)
return 0;
}
#ifdef CONFIG_ST_TRUSTED_TOUCH
if (atomic_read(&ts->trusted_touch_enabled))
wait_for_completion_interruptible(
&ts->trusted_touch_powerdown);
#endif
mutex_lock(&ts->lock);
// make sure display reset(RESX) sequence and dsi cmds sent before this