include/soc/mediatek/smi.h

/*
 * Copyright (c) 2015-2016 MediaTek Inc.
 * Author: Yong Wu <yong.wu@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 MTK_IOMMU_SMI_H
#define MTK_IOMMU_SMI_H

#include <linux/bitops.h>
#include <linux/device.h>

#ifdef CONFIG_MTK_SMI

#define MTK_LARB_NR_MAX		32

#define MTK_SMI_MMU_EN(port)	BIT(port)

struct mtk_smi_larb_iommu {
	struct device *dev;
	unsigned int   mmu;
};

struct mtk_smi_iommu {
	unsigned int larb_nr;
	struct mtk_smi_larb_iommu larb_imu[MTK_LARB_NR_MAX];
};

#endif
#if IS_ENABLED(CONFIG_MTK_SMI_EXT)
#include <linux/platform_device.h>

struct mtk_smi_pair {
	u32 off;
	u32 val;
};

struct mtk_smi_dev {
	u32 id;
	struct device *dev;
	void __iomem *base;
	u32 *mmu;

	u32 nr_clks;
	struct clk **clks;
	atomic_t clk_cnts;

	u32 nr_conf_pairs;
	struct mtk_smi_pair *conf_pairs;

	u32 nr_scen_pairs;
	struct mtk_smi_pair **scen_pairs;
};

s32 mtk_smi_clk_enable(struct mtk_smi_dev *smi);
void mtk_smi_clk_disable(struct mtk_smi_dev *smi);

struct mtk_smi_dev *mtk_smi_dev_get(const u32 id);
s32 mtk_smi_conf_set(const struct mtk_smi_dev *smi, const u32 scen_id);

s32 smi_register(void);
#endif

#endif