ARM: davinci: enable the clocksource driver for DT mode

Switch all davinci boards supporting device tree to using the new
clocksource driver: remove the previous OF_TIMER_DECLARE() from
mach-davinci and select davinci-timer for ARCH_DAVINCI.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

arch/arm/Kconfig

@@ -583,6 +583,7 @@ config ARCH_DAVINCI
 	select ARCH_HAS_HOLES_MEMORYMODEL
 	select COMMON_CLK
 	select CPU_ARM926T
+	select DAVINCI_TIMER
 	select GENERIC_ALLOCATOR
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_CHIP

arch/arm/mach-davinci/time.c

@@ -398,17 +398,3 @@ void __init davinci_timer_init(struct clk *timer_clk)
 	for (i=0; i< ARRAY_SIZE(timers); i++)
 		timer32_config(&timers[i]);
 }
-
-static int __init of_davinci_timer_init(struct device_node *np)
-{
-	struct clk *clk;
-
-	clk = of_clk_get(np, 0);
-	if (IS_ERR(clk))
-		return PTR_ERR(clk);
-
-	davinci_timer_init(clk);
-
-	return 0;
-}
-TIMER_OF_DECLARE(davinci_timer, "ti,da830-timer", of_davinci_timer_init);