OMAP: CLK: CLKSRC: Add suspend resume hooks (759c27bd) · Commits · 戴 / test

arch/arm/mach-omap2/timer.c

+32 −0

Original line number	Diff line number	Diff line
		@@ -71,6 +71,9 @@ static struct clock_event_device clockevent_gpt;
		/* Clockevent hwmod for am335x and am437x suspend */
		static struct omap_hwmod *clockevent_gpt_hwmod;

		/* Clockesource hwmod for am437x suspend */
		static struct omap_hwmod *clocksource_gpt_hwmod;

		#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
		static unsigned long arch_timer_freq;

		@@ -442,6 +445,26 @@ static int __init __maybe_unused omap2_sync32k_clocksource_init(void)
		return ret;
		}

		static unsigned int omap2_gptimer_clksrc_load;

		static void omap2_gptimer_clksrc_suspend(struct clocksource *unused)
		{
		omap2_gptimer_clksrc_load =
		__omap_dm_timer_read_counter(&clksrc, OMAP_TIMER_NONPOSTED);

		omap_hwmod_idle(clocksource_gpt_hwmod);
		}

		static void omap2_gptimer_clksrc_resume(struct clocksource *unused)
		{
		omap_hwmod_enable(clocksource_gpt_hwmod);

		__omap_dm_timer_load_start(&clksrc,
		OMAP_TIMER_CTRL_ST \| OMAP_TIMER_CTRL_AR,
		omap2_gptimer_clksrc_load,
		OMAP_TIMER_NONPOSTED);
		}

		static void __init omap2_gptimer_clocksource_init(int gptimer_id,
		const char *fck_source,
		const char *property)
		@@ -454,6 +477,15 @@ static void __init omap2_gptimer_clocksource_init(int gptimer_id,
		res = omap_dm_timer_init_one(&clksrc, fck_source, property,
		&clocksource_gpt.name,
		OMAP_TIMER_NONPOSTED);

		if (soc_is_am43xx()) {
		clocksource_gpt.suspend = omap2_gptimer_clksrc_suspend;
		clocksource_gpt.resume = omap2_gptimer_clksrc_resume;

		clocksource_gpt_hwmod =
		omap_hwmod_lookup(clocksource_gpt.name);
		}

		BUG_ON(res);

		__omap_dm_timer_load_start(&clksrc,