/* * OMAP4 CM module functions * * Copyright (C) 2009 Nokia Corporation * Paul Walmsley * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/types.h> #include <linux/delay.h> #include <linux/spinlock.h> #include <linux/list.h> #include <linux/errno.h> #include <linux/err.h> #include <linux/io.h> #include <asm/atomic.h> #include "cm.h" /* XXX move this to cm.h */ /* MAX_MODULE_READY_TIME: max milliseconds for module to leave idle */ #define MAX_MODULE_READY_TIME 20000 /* * OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK: isolates the IDLEST field in the * CM_CLKCTRL register. */ #define OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK (0x2 << 16) /* * OMAP4 prcm_mod u32 fields contain packed data: the CM ID in bit 16 and * the PRCM module offset address (from the CM module base) in bits 15-0. */ #define OMAP4_PRCM_MOD_CM_ID_SHIFT 16 #define OMAP4_PRCM_MOD_OFFS_MASK 0xffff /** * omap4_cm_wait_idlest_ready - wait for a module to leave idle or standby * @prcm_mod: PRCM module offset (XXX example) * @prcm_dev_offs: PRCM device offset (e.g. MCASP XXX example) * * XXX document */ int omap4_cm_wait_idlest_ready(u32 prcm_mod, u8 prcm_dev_offs) { /* FIXME: Add clock manager related code */ return 0; }