ARM: OMAP2+: Simplify system timers definitions

There is a lot of redundancy in the definitions for the various system
timers for OMAP2+ devices. For example, the omap3_am33xx_gptimer_timer_init()
function is the same as the omap3_gp_gptimer_timer_init() function and the
function omap4_sync32k_timer_init() can be re-used for OMAP5 devices.
Therefore, consolidate the definitions to simplify the code.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>

arch/arm/mach-omap2/board-cm-t3517.c

@@ -297,6 +297,6 @@ MACHINE_START(CM_T3517, "Compulab CM-T3517")
 	.handle_irq	= omap3_intc_handle_irq,
 	.init_machine	= cm_t3517_init,
 	.init_late	= am35xx_init_late,
-	.init_time	= omap3_gp_gptimer_timer_init,
+	.init_time	= omap3_gptimer_timer_init,
 	.restart	= omap3xxx_restart,
 MACHINE_END

arch/arm/mach-omap2/board-generic.c

@@ -139,7 +139,7 @@ DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
 	.init_irq	= omap_intc_of_init,
 	.handle_irq	= omap3_intc_handle_irq,
 	.init_machine	= omap_generic_init,
-	.init_time	= omap3_am33xx_gptimer_timer_init,
+	.init_time	= omap3_gptimer_timer_init,
 	.dt_compat	= am33xx_boards_compat,
 MACHINE_END
 #endif

arch/arm/mach-omap2/common.h

@@ -82,8 +82,7 @@ extern void omap2_init_common_infrastructure(void);
 extern void omap2_sync32k_timer_init(void);
 extern void omap3_sync32k_timer_init(void);
 extern void omap3_secure_sync32k_timer_init(void);
-extern void omap3_gp_gptimer_timer_init(void);
-extern void omap3_am33xx_gptimer_timer_init(void);
+extern void omap3_gptimer_timer_init(void);
 extern void omap4_local_timer_init(void);
 extern void omap5_realtime_timer_init(void);
 

arch/arm/mach-omap2/timer.c

@@ -576,18 +576,19 @@ OMAP_SYS_32K_TIMER_INIT(3, 1, "timer_32k_ck", "ti,timer-alwon",
 			2, "timer_sys_ck");
 OMAP_SYS_32K_TIMER_INIT(3_secure, 12, "secure_32k_fck", "ti,timer-secure",
 			2, "timer_sys_ck");
-OMAP_SYS_GP_TIMER_INIT(3_gp, 1, "timer_sys_ck", "ti,timer-alwon",
-		       2, "timer_sys_ck");
 #endif /* CONFIG_ARCH_OMAP3 */
 
-#ifdef CONFIG_SOC_AM33XX
-OMAP_SYS_GP_TIMER_INIT(3_am33xx, 1, "timer_sys_ck", "ti,timer-alwon",
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM33XX)
+OMAP_SYS_GP_TIMER_INIT(3, 1, "timer_sys_ck", "ti,timer-alwon",
 		       2, "timer_sys_ck");
-#endif /* CONFIG_SOC_AM33XX */
+#endif
 
-#ifdef CONFIG_ARCH_OMAP4
+#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 OMAP_SYS_32K_TIMER_INIT(4, 1, "timer_32k_ck", "ti,timer-alwon",
 			2, "sys_clkin_ck");
+#endif
+
+#ifdef CONFIG_ARCH_OMAP4
 #ifdef CONFIG_LOCAL_TIMERS
 static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, OMAP44XX_LOCAL_TWD_BASE, 29);
 void __init omap4_local_timer_init(void)
@@ -616,13 +617,11 @@ void __init omap4_local_timer_init(void)
 #endif /* CONFIG_ARCH_OMAP4 */
 
 #ifdef CONFIG_SOC_OMAP5
-OMAP_SYS_32K_TIMER_INIT(5, 1, "timer_32k_ck", "ti,timer-alwon",
-			2, "sys_clkin_ck");
 void __init omap5_realtime_timer_init(void)
 {
 	int err;
 
-	omap5_sync32k_timer_init();
+	omap4_sync32k_timer_init();
 	realtime_counter_init();
 
 	err = arch_timer_of_register();