ARK-OS/arkos/kernel/drivers/clk/mediatek/clk-mt8188-ipe.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2022 MediaTek Inc.
 * Author: Garmin Chang <garmin.chang@mediatek.com>
 */

#include <dt-bindings/clock/mediatek,mt8188-clk.h>
#include <linux/clk-provider.h>
#include <linux/platform_device.h>

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

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

#define GATE_IPE(_id, _name, _parent, _shift)			\
	GATE_MTK(_id, _name, _parent, &ipe_cg_regs, _shift, &mtk_clk_gate_ops_setclr)

#define IPE_SYS_SMI_LARB_RST_OFF	(0xC)

static const struct mtk_gate ipe_clks[] = {
	GATE_IPE(CLK_IPE_DPE, "ipe_dpe", "top_ipe", 0),
	GATE_IPE(CLK_IPE_FDVT, "ipe_fdvt", "top_ipe", 1),
	GATE_IPE(CLK_IPE_ME, "ipe_me", "top_ipe", 2),
	GATE_IPE(CLK_IPESYS_TOP, "ipesys_top", "top_ipe", 3),
	GATE_IPE(CLK_IPE_SMI_LARB12, "ipe_smi_larb12", "top_ipe", 4),
};

/* Reset for SMI larb 12 */
static u16 ipe_sys_rst_ofs[] = {
	IPE_SYS_SMI_LARB_RST_OFF,
};

static const struct mtk_clk_rst_desc ipe_sys_rst_desc = {
	.version = MTK_RST_SIMPLE,
	.rst_bank_ofs = ipe_sys_rst_ofs,
	.rst_bank_nr = ARRAY_SIZE(ipe_sys_rst_ofs),
};

static const struct mtk_clk_desc ipe_desc = {
	.clks = ipe_clks,
	.num_clks = ARRAY_SIZE(ipe_clks),
	.rst_desc = &ipe_sys_rst_desc,
};

static const struct of_device_id of_match_clk_mt8188_ipe[] = {
	{ .compatible = "mediatek,mt8188-ipesys", .data = &ipe_desc },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, of_match_clk_mt8188_ipe);

static struct platform_driver clk_mt8188_ipe_drv = {
	.probe = mtk_clk_simple_probe,
	.remove = mtk_clk_simple_remove,
	.driver = {
		.name = "clk-mt8188-ipe",
		.of_match_table = of_match_clk_mt8188_ipe,
	},
};

module_platform_driver(clk_mt8188_ipe_drv);

MODULE_DESCRIPTION("MediaTek MT8188 Image Processing Engine clocks driver");
MODULE_LICENSE("GPL");