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authorTero Kristo2013-10-11 18:15:38 +0200
committerPaul Walmsley2013-10-19 18:11:52 +0200
commit49e03402327ab69a26f604398982ef14123900a2 (patch)
tree3af0f14ca3f4705f67ca49fa70075b37608944bf /arch/arm/mach-omap2/control.c
parentARM: OMAP3: CM/control: move CM scratchpad save to CM driver (diff)
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ARM: OMAP3: control: add API for setting IVA bootmode
OMAP3 PM core requires IVA2 bootmode to be set to idle during init. Currently, a direct register write is used for this. Add a new ctrl API for this purpose instead. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch/arm/mach-omap2/control.c')
-rw-r--r--arch/arm/mach-omap2/control.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index a59711454543..44bb4d544dcf 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -569,4 +569,15 @@ int omap3_ctrl_save_padconf(void)
return 0;
}
+/**
+ * omap3_ctrl_set_iva_bootmode_idle - sets the IVA2 bootmode to idle
+ *
+ * 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)
+{
+ omap_ctrl_writel(OMAP3_IVA2_BOOTMOD_IDLE,
+ OMAP343X_CONTROL_IVA2_BOOTMOD);
+}
#endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */