Re: [PATCH 2/2] clocksource: timer-ti-dm: Do not update counter on updating the period

From: Tony Lindgren
Date: Wed Feb 26 2020 - 12:29:59 EST


* Lokesh Vutla <lokeshvutla@xxxxxx> [200224 05:09]:
> Write to trigger register(OMAP_TIMER_TRIGGER_REG) will load the value
> in Load register(OMAP_TIMER_LOAD_REG) into Counter register
> (OMAP_TIMER_COUNTER_REG).
>
> omap_dm_timer_set_load() writes into trigger register every time load
> register is updated. When timer is configured in pwm mode, this causes
> disruption in current pwm cycle, which is not expected especially when
> pwm is used as PPS signal for synchronized PTP clocks. So do not write
> into trigger register on updating the period.

This patch without patch 1/2 applied still works for me:

Tested-by: Tony Lindgren <tony@xxxxxxxxxxx>