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/*
* AESS IP block reset
*
* Copyright (C) 2012 Texas Instruments, Inc.
* Paul Walmsley
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef __SOUND_AESS_H__
#define __SOUND_AESS_H__
#include <linux/kernel.h>
#include <linux/io.h>
/*
* AESS_AUTO_GATING_ENABLE_OFFSET: offset in bytes of the AESS IP
* block's AESS_AUTO_GATING_ENABLE__1 register from the IP block's
* base address
*/
#define AESS_AUTO_GATING_ENABLE_OFFSET 0x07c
/* Register bitfields in the AESS_AUTO_GATING_ENABLE__1 register */
#define AESS_AUTO_GATING_ENABLE_SHIFT 0
/**
* aess_enable_autogating - enable AESS internal autogating
* @oh: struct omap_hwmod *
*
* Enable internal autogating on the AESS. This allows the AESS to
* indicate that it is idle to the OMAP PRCM. Returns 0.
*/
static inline void aess_enable_autogating(void __iomem *base)
{
u32 v;
/* Set AESS_AUTO_GATING_ENABLE__1.ENABLE to allow idle entry */
v = 1 << AESS_AUTO_GATING_ENABLE_SHIFT;
writel(v, base + AESS_AUTO_GATING_ENABLE_OFFSET);
}
#endif /* __SOUND_AESS_H__ */