x86/platform/olpc: Do not call of_platform_bus_probe()

The DT core will probe the DT by default now, so the OLPC platform code
calling of_platform_bus_probe() is not necessary. The algorithm for what
nodes are probed is a little different in how compatible is handled, but
since OLPC uses compatible strings for matching it is not affected by
this difference.

Also, only the battery node located at the root level gets a device
created as the dcon is a PCI device and the RTC device is created in
olpc-xo1-rtc.c.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: Lubomir Rintel <lkundrak@v3.sk>
Cc: Thomas Gleixner <tglx@linutronix.de>
CC: devicetree@vger.kernel.org
CC: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/20181116201820.10065-1-robh@kernel.org

arch/x86/platform/olpc/olpc_dt.c

@@ -19,7 +19,6 @@
 #include <linux/kernel.h>
 #include <linux/memblock.h>
 #include <linux/of.h>
-#include <linux/of_platform.h>
 #include <linux/of_pdt.h>
 #include <asm/olpc.h>
 #include <asm/olpc_ofw.h>
@@ -285,20 +284,3 @@ void __init olpc_dt_build_devicetree(void)
 	pr_info("PROM DT: Built device tree with %u bytes of memory.\n",
 			prom_early_allocated);
 }
-
-/* A list of DT node/bus matches that we want to expose as platform devices */
-static struct of_device_id __initdata of_ids[] = {
-	{ .compatible = "olpc,xo1-battery" },
-	{ .compatible = "olpc,xo1-dcon" },
-	{ .compatible = "olpc,xo1-rtc" },
-	{},
-};
-
-static int __init olpc_create_platform_devices(void)
-{
-	if (machine_is_olpc())
-		return of_platform_bus_probe(NULL, of_ids, NULL);
-	else
-		return 0;
-}
-device_initcall(olpc_create_platform_devices);