drivers: input: 2w: squashed s2w and dt2w from Bricked n5 - Phase 1
drivers: input: 2w: squashed s2w and dt2w from Bricked n5 - Phase 2
drivers: input: 2w: power on display when register input touch
drivers: input: 2w: no needed export symbol on power on
drivers: input: 2w: enable s2w and dt2w debug
drivers: input: 2w: add kernel info to power on display
drivers: input: 2w: add irq no suspend and i2c retry count
drivers: input: 2w: add touch core interrupt events
drivers: input: 2w: add selection for power on display when register input touch
drivers: input: 2w: add power on display for dt2w
drivers: input: 2w: different power on display for s2w and dt2w
drivers: input: 2w: remove device_init_wakeup
drivers: input: 2w: don't wait for irq events to be handled, just disable the irq
drivers: input: 2w: fix irq derp and reference
drivers: input: 2w: rework early and late resume for touchscreen operations
drivers: input: 2w: fix derp into early and late resume routine
drivers: input: 2w: add s2s only override
drivers: input: 2w: disable debug operations for s2w and dt2w
drivers: input: 2w: fix derp into power wake for dt2w
drivers: input: 2w: add options for enable/disable 2w with power button

/sys/module/input_core/parameters/pwrkey_suspend
pwrkey_suspend = Y or N
if yes when screen goes off without touch anything 2w is enabled
otherwise if you use power button is disabled.
You can save your battery with this option on.