[PATCH] ARM: OMAP2+: Remove suspend_set_ops from common pm late init

[Dave Gerlach]

In omap2_common_pm_late_init suspend_set_ops was called to set common
suspend handling functions for all omap platforms. This created two
problems. First, these suspend ops were being set for all platforms,
regardless of whether or not suspend support has been integrated so in
the case of AM33XX, suspend to mem was presented as available but
failed every time. Second, some platforms will need to define a
completely separate set of suspend ops, such as AM33XX, due to
differences from previous omap platforms so there is no need to
always set the common omap ops.

This patch moves the suspend_set_ops call from omap2_common_pm_late_init
into a separate function that then gets called in the omap*_pm_init
functions for each platform.

Signed-off-by: Dave Gerlach <d-gerlach at ti.com>
---
 arch/arm/mach-omap2/common.h | 8 ++++++++
 arch/arm/mach-omap2/pm.c     | 8 ++++----
 arch/arm/mach-omap2/pm24xx.c | 1 +
 arch/arm/mach-omap2/pm34xx.c | 1 +
 arch/arm/mach-omap2/pm44xx.c | 1 +
 5 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index d88aff7..091e1c7 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -162,6 +162,14 @@ static inline void omap44xx_restart(enum reboot_mode mode, const char *cmd)
 }
 #endif
 
+#ifdef CONFIG_SUSPEND
+void omap_common_suspend_init(void);
+#else
+static inline void omap_common_suspend_init(void)
+{
+}
+#endif
+
 /* This gets called from mach-omap2/io.c, do not call this */
 void __init omap2_set_globals_tap(u32 class, void __iomem *tap);
 
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index e1b4141..c9b36fb 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -243,6 +243,10 @@ static const struct platform_suspend_ops omap_pm_ops = {
 	.valid		= suspend_valid_only_mem,
 };
 
+void __init omap_common_suspend_init(void)
+{
+	suspend_set_ops(&omap_pm_ops);
+}
 #endif /* CONFIG_SUSPEND */
 
 static void __init omap3_init_voltages(void)
@@ -310,9 +314,5 @@ int __init omap2_common_pm_late_init(void)
 	/* cpufreq dummy device instantiation */
 	omap_init_cpufreq();
 
-#ifdef CONFIG_SUSPEND
-	suspend_set_ops(&omap_pm_ops);
-#endif
-
 	return 0;
 }
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index 8c07594..8cd2408 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -231,6 +231,7 @@ static void __init prcm_setup_regs(void)
 
 #ifdef CONFIG_SUSPEND
 	omap_pm_suspend = omap2_enter_full_retention;
+	omap_common_suspend_init();
 #endif
 
 	/* REVISIT: Configure number of 32 kHz clock cycles for sys_clk
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 87099bb..32b2597 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -707,6 +707,7 @@ int __init omap3_pm_init(void)
 
 #ifdef CONFIG_SUSPEND
 	omap_pm_suspend = omap3_pm_suspend;
+	omap_common_suspend_init();
 #endif
 
 	arm_pm_idle = omap3_pm_idle;
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index eefb30c..58d7cd7 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -253,6 +253,7 @@ int __init omap4_pm_init(void)
 
 #ifdef CONFIG_SUSPEND
 	omap_pm_suspend = omap4_pm_suspend;
+	omap_common_suspend_init();
 #endif
 
 	/* Overwrite the default cpu_do_idle() */
-- 
1.9.0