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Merge branch 'clockevents/4.19-fixes' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent

Pull clockevent fixed from Daniel Lezcano:

 - Add the CLOCK_SOURCE_SUSPEND_NONSTOP for non-am43 SoCs (Keerthy)

 - Fix set_next_event handler for the fttmr010 (Tao Ren)
Thomas Gleixner 7 years ago
parent
commit
864f893f31
2 changed files with 14 additions and 7 deletions
  1. 11 7
      drivers/clocksource/timer-fttmr010.c
  2. 3 0
      drivers/clocksource/timer-ti-32k.c

+ 11 - 7
drivers/clocksource/timer-fttmr010.c

@@ -130,13 +130,17 @@ static int fttmr010_timer_set_next_event(unsigned long cycles,
 	cr &= ~fttmr010->t1_enable_val;
 	writel(cr, fttmr010->base + TIMER_CR);
 
-	/* Setup the match register forward/backward in time */
-	cr = readl(fttmr010->base + TIMER1_COUNT);
-	if (fttmr010->count_down)
-		cr -= cycles;
-	else
-		cr += cycles;
-	writel(cr, fttmr010->base + TIMER1_MATCH1);
+	if (fttmr010->count_down) {
+		/*
+		 * ASPEED Timer Controller will load TIMER1_LOAD register
+		 * into TIMER1_COUNT register when the timer is re-enabled.
+		 */
+		writel(cycles, fttmr010->base + TIMER1_LOAD);
+	} else {
+		/* Setup the match register forward in time */
+		cr = readl(fttmr010->base + TIMER1_COUNT);
+		writel(cr + cycles, fttmr010->base + TIMER1_MATCH1);
+	}
 
 	/* Start */
 	cr = readl(fttmr010->base + TIMER_CR);

+ 3 - 0
drivers/clocksource/timer-ti-32k.c

@@ -97,6 +97,9 @@ static int __init ti_32k_timer_init(struct device_node *np)
 		return -ENXIO;
 	}
 
+	if (!of_machine_is_compatible("ti,am43"))
+		ti_32k_timer.cs.flags |= CLOCK_SOURCE_SUSPEND_NONSTOP;
+
 	ti_32k_timer.counter = ti_32k_timer.base;
 
 	/*