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authorRajendra Nayak <rnayak@ti.com>2008-09-26 17:49:14 +0530
committerKevin Hilman <khilman@deeprootsystems.com>2009-11-11 14:42:24 -0800
commit3231fc889c114870ca830041fcdeb5d4745304cf (patch)
tree8ce76ef76d93b2676b0b4bd8b0a1746111c8522c /arch/arm
parentOMAP3: PM: SCM context save/restore (diff)
downloadlinux-dev-3231fc889c114870ca830041fcdeb5d4745304cf.tar.xz
linux-dev-3231fc889c114870ca830041fcdeb5d4745304cf.zip
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>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-omap2/pm34xx.c10
-rw-r--r--arch/arm/plat-omap/include/plat/sram.h6
-rw-r--r--arch/arm/plat-omap/sram.c8
3 files changed, 18 insertions, 6 deletions
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 391054900a6a..b88da1bcb66c 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 8974e3fc2691..77799d576bc8 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 a53aa8541730..3e923668778d 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