/*
 * Copyright (c) 2014 MediaTek Inc.
 * Author: James Liao <jamesjj.liao@mediatek.com>
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef __DRV_CLK_MTK_H
#define __DRV_CLK_MTK_H

/*
 * This is a private header file. DO NOT include it except clk-*.c.
 */

#include <linux/bitops.h>
#include <linux/clk.h>
#include <linux/clk-provider.h>

#define CLK_DEBUG		0
#define DUMMY_REG_TEST		0
/* #define Bring_Up */
#ifdef Bring_Up
#ifdef pr_debug
#undef pr_debug
#define pr_debug pr_warn
#endif
#define MT_CCF_DEBUG	1
#define MT_CCF_BRINGUP	0 /* 1: only for bring up */
#endif /* Bring_Up */

extern int mtk_is_mtcmos_enable(void);
extern spinlock_t *get_mtk_clk_lock(void);
extern spinlock_t *get_mtk_mtcmos_lock(void);

#define mtk_clk_lock(flags)	spin_lock_irqsave(get_mtk_clk_lock(), flags)
#define mtk_clk_unlock(flags)	\
	spin_unlock_irqrestore(get_mtk_clk_lock(), flags)
#define mtk_mtcmos_lock(flags)	spin_lock_irqsave(get_mtk_mtcmos_lock(), flags)
#define mtk_mtcmos_unlock(flags)	\
	spin_unlock_irqrestore(get_mtk_mtcmos_lock(), flags)

#define MAX_MUX_GATE_BIT	31
#define INVALID_MUX_GATE_BIT	(MAX_MUX_GATE_BIT + 1)

#if 0
struct clk *mtk_clk_register_mux(
		const char *name,
		const char **parent_names,
		u8 num_parents,
		void __iomem *base_addr,
		u8 shift,
		u8 width,
		u8 gate_bit);
#endif
#endif /* __DRV_CLK_MTK_H */