ARM: OMAP2+: Remove unused legacy code for interconnects

We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/omap_device.c

@@ -65,7 +65,7 @@ static void _add_clkdev(struct omap_device *od, const char *clk_alias,
 
 	r = clk_get_sys(NULL, clk_name);
 
-	if (IS_ERR(r) && of_have_populated_dt()) {
+	if (IS_ERR(r)) {
 		struct of_phandle_args clkspec;
 
 		clkspec.np = of_find_node_by_name(NULL, clk_name);
@@ -953,9 +953,6 @@ static int __init omap_device_late_init(void)
 {
 	bus_for_each_dev(&platform_bus_type, NULL, NULL, omap_device_late_idle);
 
-	WARN(!of_have_populated_dt(),
-		"legacy booting deprecated, please update to boot with .dts\n");
-
 	return 0;
 }
 omap_late_initcall_sync(omap_device_late_init);

arch/arm/mach-omap2/omap_hwmod.c

@@ -2334,13 +2334,11 @@ static int __init _init(struct omap_hwmod *oh, void *data)
 {
 	int r, index;
 	struct device_node *np = NULL;
+	struct device_node *bus;
 
 	if (oh->_state != _HWMOD_STATE_REGISTERED)
 		return 0;
 
-	if (of_have_populated_dt()) {
-		struct device_node *bus;
-
 	bus = of_find_node_by_name(NULL, "ocp");
 	if (!bus)
 		return -ENODEV;
@@ -2351,7 +2349,6 @@ static int __init _init(struct omap_hwmod *oh, void *data)
 	else if (np && index)
 		pr_warn("omap_hwmod: %s using broken dt data from %s\n",
 			oh->name, np->name);
-	}
 
 	r = _init_mpu_rt_base(oh, NULL, index, np);
 	if (r < 0) {

arch/arm/mach-omap2/omap_hwmod_3xxx_data.c

@@ -3204,7 +3204,6 @@ int __init omap3xxx_hwmod_init(void)
 	 * If DT information is missing, enable them only for GP devices.
 	 */
 
-	if (of_have_populated_dt())
 	bus = of_find_node_by_name(NULL, "ocp");
 
 	if (h_sham && omap3xxx_hwmod_is_hs_ip_block_usable(bus, "sham")) {