// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright (c) 2021 MediaTek Inc.
// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>

#include "clk-gate.h"
#include "clk-mtk.h"

#include <dt-bindings/clock/mt8195-clk.h>
#include <linux/clk-provider.h>
#include <linux/platform_device.h>

static const struct mtk_gate_regs ccu_cg_regs = {
        .set_ofs = 0x4,
        .clr_ofs = 0x8,
        .sta_ofs = 0x0,
};

#define GATE_CCU(_id, _name, _parent, _shift)                   \
        GATE_MTK(_id, _name, _parent, &ccu_cg_regs, _shift, &mtk_clk_gate_ops_setclr)

static const struct mtk_gate ccu_clks[] = {
        GATE_CCU(CLK_CCU_LARB18, "ccu_larb18", "top_ccu", 0),
        GATE_CCU(CLK_CCU_AHB, "ccu_ahb", "top_ccu", 1),
        GATE_CCU(CLK_CCU_CCU0, "ccu_ccu0", "top_ccu", 2),
        GATE_CCU(CLK_CCU_CCU1, "ccu_ccu1", "top_ccu", 3),
};

static const struct mtk_clk_desc ccu_desc = {
        .clks = ccu_clks,
        .num_clks = ARRAY_SIZE(ccu_clks),
};

static const struct of_device_id of_match_clk_mt8195_ccu[] = {
        {
                .compatible = "mediatek,mt8195-ccusys",
                .data = &ccu_desc,
        }, {
                /* sentinel */
        }
};
MODULE_DEVICE_TABLE(of, of_match_clk_mt8195_ccu);

static struct platform_driver clk_mt8195_ccu_drv = {
        .probe = mtk_clk_simple_probe,
        .remove = mtk_clk_simple_remove,
        .driver = {
                .name = "clk-mt8195-ccu",
                .of_match_table = of_match_clk_mt8195_ccu,
        },
};
module_platform_driver(clk_mt8195_ccu_drv);

MODULE_DESCRIPTION("MediaTek MT8195 Camera Control Unit clocks driver");
MODULE_LICENSE("GPL");