From c75ee7520b4ad48a6948f51ca43b2e46ebd3696a Mon Sep 17 00:00:00 2001 From: Hiroshi DOYU Date: Mon, 23 Mar 2009 18:07:26 -0700 Subject: omap mailbox: add save_/restore_ctx() for PM To preserve the registers during off-mode Signed-off-by: Hiroshi DOYU --- arch/arm/plat-omap/include/mach/mailbox.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'arch/arm/plat-omap') diff --git a/arch/arm/plat-omap/include/mach/mailbox.h b/arch/arm/plat-omap/include/mach/mailbox.h index 577db6852f43..b7a6991814ec 100644 --- a/arch/arm/plat-omap/include/mach/mailbox.h +++ b/arch/arm/plat-omap/include/mach/mailbox.h @@ -33,6 +33,9 @@ struct omap_mbox_ops { void (*disable_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq); void (*ack_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq); int (*is_irq)(struct omap_mbox *mbox, omap_mbox_irq_t irq); + /* ctx */ + void (*save_ctx)(struct omap_mbox *mbox); + void (*restore_ctx)(struct omap_mbox *mbox); }; struct omap_mbox_queue { @@ -70,4 +73,24 @@ void omap_mbox_put(struct omap_mbox *); int omap_mbox_register(struct device *parent, struct omap_mbox *); int omap_mbox_unregister(struct omap_mbox *); +static inline void omap_mbox_save_ctx(struct omap_mbox *mbox) +{ + if (!mbox->ops->save_ctx) { + dev_err(mbox->dev, "%s:\tno save\n", __func__); + return; + } + + mbox->ops->save_ctx(mbox); +} + +static inline void omap_mbox_restore_ctx(struct omap_mbox *mbox) +{ + if (!mbox->ops->restore_ctx) { + dev_err(mbox->dev, "%s:\tno restore\n", __func__); + return; + } + + mbox->ops->restore_ctx(mbox); +} + #endif /* MAILBOX_H */ -- cgit v1.2.2