OMAP3: PM: restore SRAM functions after off-mode.

Generalize the copy of SRAM functions into omap_push_sram_idle()
so it can be used on init but also after off-mode transitions.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

3 files changed, 18 insertions, 6 deletions

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 391054900a6..b88da1bcb66 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -749,6 +749,12 @@ static int __init clkdms_setup(struct clockdomain *clkdm, void *unused)
         return 0;
 }
 
+void omap_push_sram_idle(void)
+{
+        _omap_sram_idle = omap_sram_push(omap34xx_cpu_suspend,
+                                        omap34xx_cpu_suspend_sz);
+}
+
 static int __init omap3_pm_init(void)
 {
         struct power_state *pwrst, *tmp;
@@ -786,9 +792,7 @@ static int __init omap3_pm_init(void)
                 goto err2;
         }
 
-        _omap_sram_idle = omap_sram_push(omap34xx_cpu_suspend,
-                                         omap34xx_cpu_suspend_sz);
-
+        omap_push_sram_idle();
 #ifdef CONFIG_SUSPEND
         suspend_set_ops(&omap_pm_ops);
 #endif /* CONFIG_SUSPEND */
diff --git a/arch/arm/plat-omap/include/plat/sram.h b/arch/arm/plat-omap/include/plat/sram.h
index 8974e3fc269..77799d576bc 100644
--- a/arch/arm/plat-omap/include/plat/sram.h
+++ b/arch/arm/plat-omap/include/plat/sram.h
@@ -68,4 +68,10 @@ extern u32 omap3_sram_configure_core_dpll(
                         u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1);
 extern unsigned long omap3_sram_configure_core_dpll_sz;
 
+#ifdef CONFIG_PM
+extern void omap_push_sram_idle(void);
+#else
+static inline void omap_push_sram_idle(void) {}
+#endif /* CONFIG_PM */
+
 #endif
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index a53aa854173..3e923668778 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -396,22 +396,24 @@ u32 omap3_configure_core_dpll(u32 m2, u32 unlock_dll, u32 f, u32 inc,
                         sdrc_actim_ctrl_b_1, sdrc_mr_1);
 }
 
-/* REVISIT: Should this be same as omap34xx_sram_init() after off-idle? */
-void restore_sram_functions(void)
+#ifdef CONFIG_PM
+void omap3_sram_restore_context(void)
 {
         omap_sram_ceil = omap_sram_base + omap_sram_size;
 
         _omap3_sram_configure_core_dpll =
                 omap_sram_push(omap3_sram_configure_core_dpll,
                                omap3_sram_configure_core_dpll_sz);
+        omap_push_sram_idle();
 }
+#endif /* CONFIG_PM */
 
 int __init omap34xx_sram_init(void)
 {
         _omap3_sram_configure_core_dpll =
                 omap_sram_push(omap3_sram_configure_core_dpll,
                                omap3_sram_configure_core_dpll_sz);
-
+        omap_push_sram_idle();
         return 0;
 }
 #else