ARM: omap2+: control: add support for auxiliary control module instances

Control module can have multiple instances in a system, each with separate
address space and features. Add base support for these auxiliary instances,
with support for syscon and clock mappings under them.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/control.c

@@ -623,6 +623,7 @@ void __init omap3_ctrl_init(void)
 
 struct control_init_data {
 	int index;
+	void __iomem *mem;
 	s16 offset;
 };
 
@@ -660,17 +661,23 @@ int __init omap2_control_base_init(void)
 	struct device_node *np;
 	const struct of_device_id *match;
 	struct control_init_data *data;
+	void __iomem *mem;
 
 	for_each_matching_node_and_match(np, omap_scrm_dt_match_table, &match) {
 		data = (struct control_init_data *)match->data;
 
-		omap2_ctrl_base = of_iomap(np, 0);
-		if (!omap2_ctrl_base)
+		mem = of_iomap(np, 0);
+		if (!mem)
 			return -ENOMEM;
 
+		if (data->index == TI_CLKM_CTRL) {
+			omap2_ctrl_base = mem;
 			omap2_ctrl_offset = data->offset;
 		}
 
+		data->mem = mem;
+	}
+
 	return 0;
 }
 
@@ -713,7 +720,7 @@ int __init omap_control_init(void)
 		} else {
 			/* No scm_conf found, direct access */
 			ret = omap2_clk_provider_init(np, data->index, NULL,
-						      omap2_ctrl_base);
+						      data->mem);
 			if (ret)
 				return ret;
 		}

include/linux/clk/ti.h

@@ -203,6 +203,7 @@ enum {
 	TI_CLKM_PRM,
 	TI_CLKM_SCRM,
 	TI_CLKM_CTRL,
+	TI_CLKM_CTRL_AUX,
 	TI_CLKM_PLLSS,
 	CLK_MAX_MEMMAPS
 };