ARM: SP804: make Integrator/CP timer pick clock from DT

This modifies the SP804 driver so that the clock will be taken
from the device tree node for the timer.

Cc: Russell King <[e-mail]>
Cc: Rob Herring <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

arch/arm/common/timer-sp.c

···
 	void __iomem *base;
 	int irq;
 	const char *name = of_get_property(np, "compatible", NULL);
+	struct clk *clk;
 
 	base = of_iomap(np, 0);
 	if (WARN_ON(!base))
+		return;
+	clk = of_clk_get(np, 0);
+	if (WARN_ON(IS_ERR(clk)))
 		return;
 
 	/* Ensure timer is disabled */
···
 		goto err;
 
 	if (!init_count)
-		sp804_clocksource_init(base, name);
+		__sp804_clocksource_and_sched_clock_init(base, name, clk, 0);
 	else {
 		irq = irq_of_parse_and_map(np, 0);
 		if (irq <= 0)
 			goto err;
 
-		sp804_clockevents_init(base, irq, name);
+		__sp804_clockevents_init(base, irq, clk, name);
 	}
 
 	init_count++;