ARM: OMAP3: control: isolate control module init to its own function

Control module related PM initializations are now moved within control
module driver. Done in preparation to isolate the code to its own driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

arch/arm/mach-omap2/control.c

@@ -564,7 +564,7 @@ int omap3_ctrl_save_padconf(void)
  * Sets the bootmode for IVA2 to idle. This is needed by the PM code to
  * force disable IVA2 so that it does not prevent any low-power states.
  */
-void omap3_ctrl_set_iva_bootmode_idle(void)
+static void __init omap3_ctrl_set_iva_bootmode_idle(void)
 {
 	omap_ctrl_writel(OMAP3_IVA2_BOOTMOD_IDLE,
 			 OMAP343X_CONTROL_IVA2_BOOTMOD);
@@ -576,7 +576,7 @@ void omap3_ctrl_set_iva_bootmode_idle(void)
  * Sets up the pads controlling the stacked modem in such way that the
  * device can enter idle.
  */
-void omap3_ctrl_setup_d2d_padconf(void)
+static void __init omap3_ctrl_setup_d2d_padconf(void)
 {
 	u16 mask, padconf;
 
@@ -595,4 +595,19 @@ void omap3_ctrl_setup_d2d_padconf(void)
 	padconf |= mask;
 	omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_IDLEACK);
 }
+
+/**
+ * omap3_ctrl_init - does static initializations for control module
+ *
+ * Initializes system control module. This sets up the sysconfig autoidle,
+ * and sets up modem and iva2 so that they can be idled properly.
+ */
+void __init omap3_ctrl_init(void)
+{
+	omap_ctrl_writel(OMAP3430_AUTOIDLE_MASK, OMAP2_CONTROL_SYSCONFIG);
+
+	omap3_ctrl_set_iva_bootmode_idle();
+
+	omap3_ctrl_setup_d2d_padconf();
+}
 #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */

arch/arm/mach-omap2/control.h

@@ -427,8 +427,7 @@ extern void omap_ctrl_write_dsp_boot_addr(u32 bootaddr);
 extern void omap_ctrl_write_dsp_boot_mode(u8 bootmode);
 extern void omap3630_ctrl_disable_rta(void);
 extern int omap3_ctrl_save_padconf(void);
-extern void omap3_ctrl_set_iva_bootmode_idle(void);
-void omap3_ctrl_setup_d2d_padconf(void);
+void omap3_ctrl_init(void);
 extern void omap2_set_globals_control(void __iomem *ctrl,
 				      void __iomem *ctrl_pad);
 #else

arch/arm/mach-omap2/pm34xx.c

@@ -355,8 +355,7 @@ static int omap3_pm_suspend(void)
 
 static void __init prcm_setup_regs(void)
 {
-	/* XXX This should be handled by hwmod code or SCM init code */
-	omap_ctrl_writel(OMAP3430_AUTOIDLE_MASK, OMAP2_CONTROL_SYSCONFIG);
+	omap3_ctrl_init();
 
 	omap3_prm_init_pm(cpu_is_omap3630(), omap3_has_iva());
 }

arch/arm/mach-omap2/prm3xxx.c

@@ -28,7 +28,6 @@
 #include "prm-regbits-34xx.h"
 #include "cm3xxx.h"
 #include "cm-regbits-34xx.h"
-#include "control.h"
 
 static const struct omap_prcm_irq omap3_prcm_irqs[] = {
 	OMAP_PRCM_IRQ("wkup",	0,	0),
@@ -366,8 +365,6 @@ void __init omap3_prm_init_pm(bool has_uart4, bool has_iva)
 	/* We need to idle iva2_pwrdm even on am3703 with no iva2. */
 	omap3xxx_prm_iva_idle();
 
-	omap3_ctrl_setup_d2d_padconf();
-
 	omap3_prm_reset_modem();
 }
 
@@ -470,9 +467,6 @@ void omap3xxx_prm_iva_idle(void)
 	omap2_cm_write_mod_reg(OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_MASK,
 			       OMAP3430_IVA2_MOD, CM_FCLKEN);
 
-	/* Set IVA2 boot mode to 'idle' */
-	omap3_ctrl_set_iva_bootmode_idle();
-
 	/* Un-reset IVA2 */
 	omap2_prm_write_mod_reg(0, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);