clockevents/drivers/timer-imx-gpt: Migrate to new 'set-state' interface
Migrate timer-imx-gpt driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Also drop: - 'imx_timer.cem': It was caching the last state of the clockevent device. The same behavior can be achieved by using clockevents state helpers. These helpers are only required for oneshot mode as shutdown/resume wouldn't be done twice by the core. - 'clock_event_mode_label': CLOCK_EVT_MODE_* shouldn't be used anymore by drivers. The prints are modified to print the set-state functions name now to debug the driver. Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org> Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
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