xtensa: Remove unnecessary of_platform_populate with default match table

After patch "of/platform: Add common method to populate default bus",
it is possible for arch code to remove unnecessary callers of
of_platform_populate with default match table.

Move of_clk_init() into time_init(), then drop xtensa_device_probe() fully.

Cc: Chris Zankel <[e-mail]>
Cc: Max Filippov <[e-mail]>
Signed-off-by: Kefeng Wang <[e-mail]>
Signed-off-by: Rob Herring <[e-mail]>

arch/xtensa/kernel/setup.c

···
 #include <linux/bootmem.h>
 #include <linux/kernel.h>
 #include <linux/percpu.h>
-#include <linux/clk-provider.h>
 #include <linux/cpu.h>
 #include <linux/of_fdt.h>
-#include <linux/of_platform.h>
 
 #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
 # include <linux/console.h>
···
 	if (!command_line[0])
 		strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
 }
-
-static int __init xtensa_device_probe(void)
-{
-	of_clk_init(NULL);
-	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-	return 0;
-}
-
-device_initcall(xtensa_device_probe);
 
 #endif /* CONFIG_OF */
 

arch/xtensa/kernel/time.c

···
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/time.h>
+#include <linux/clk-provider.h>
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
 #include <linux/interrupt.h>
···
 	local_timer_setup(0);
 	setup_irq(this_cpu_ptr(&ccount_timer)->evt.irq, &timer_irqaction);
 	sched_clock_register(ccount_sched_clock_read, 32, ccount_freq);
+	of_clk_init(NULL);
 	clocksource_probe();
 }