Linux-6.18.2/drivers/clk/mediatek/clk-mt8196-mdpsys.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2025 MediaTek Inc.
 *                    Guangjie Song <guangjie.song@mediatek.com>
 * Copyright (c) 2025 Collabora Ltd.
 *                    Laura Nao <laura.nao@collabora.com>
 */
#include <dt-bindings/clock/mediatek,mt8196-clock.h>

#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>

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

static const struct mtk_gate_regs mdp0_cg_regs = {
	.set_ofs = 0x104,
	.clr_ofs = 0x108,
	.sta_ofs = 0x100,
};

static const struct mtk_gate_regs mdp1_cg_regs = {
	.set_ofs = 0x114,
	.clr_ofs = 0x118,
	.sta_ofs = 0x110,
};

static const struct mtk_gate_regs mdp2_cg_regs = {
	.set_ofs = 0x124,
	.clr_ofs = 0x128,
	.sta_ofs = 0x120,
};

#define GATE_MDP0(_id, _name, _parent, _shift) {	\
		.id = _id,				\
		.name = _name,				\
		.parent_name = _parent,			\
		.regs = &mdp0_cg_regs,			\
		.shift = _shift,			\
		.flags = CLK_OPS_PARENT_ENABLE,		\
		.ops = &mtk_clk_gate_ops_setclr,	\
	}

#define GATE_MDP1(_id, _name, _parent, _shift) {	\
		.id = _id,				\
		.name = _name,				\
		.parent_name = _parent,			\
		.regs = &mdp1_cg_regs,			\
		.shift = _shift,			\
		.ops = &mtk_clk_gate_ops_setclr,	\
	}

#define GATE_MDP2(_id, _name, _parent, _shift) {	\
		.id = _id,				\
		.name = _name,				\
		.parent_name = _parent,			\
		.regs = &mdp2_cg_regs,			\
		.shift = _shift,			\
		.flags = CLK_OPS_PARENT_ENABLE,		\
		.ops = &mtk_clk_gate_ops_setclr,	\
	}

static const struct mtk_gate mdp1_clks[] = {
	/* MDP1-0 */
	GATE_MDP0(CLK_MDP1_MDP_MUTEX0, "mdp1_mdp_mutex0", "mdp", 0),
	GATE_MDP0(CLK_MDP1_SMI0, "mdp1_smi0", "mdp", 1),
	GATE_MDP0(CLK_MDP1_APB_BUS, "mdp1_apb_bus", "mdp", 2),
	GATE_MDP0(CLK_MDP1_MDP_RDMA0, "mdp1_mdp_rdma0", "mdp", 3),
	GATE_MDP0(CLK_MDP1_MDP_RDMA1, "mdp1_mdp_rdma1", "mdp", 4),
	GATE_MDP0(CLK_MDP1_MDP_RDMA2, "mdp1_mdp_rdma2", "mdp", 5),
	GATE_MDP0(CLK_MDP1_MDP_BIRSZ0, "mdp1_mdp_birsz0", "mdp", 6),
	GATE_MDP0(CLK_MDP1_MDP_HDR0, "mdp1_mdp_hdr0", "mdp", 7),
	GATE_MDP0(CLK_MDP1_MDP_AAL0, "mdp1_mdp_aal0", "mdp", 8),
	GATE_MDP0(CLK_MDP1_MDP_RSZ0, "mdp1_mdp_rsz0", "mdp", 9),
	GATE_MDP0(CLK_MDP1_MDP_RSZ2, "mdp1_mdp_rsz2", "mdp", 10),
	GATE_MDP0(CLK_MDP1_MDP_TDSHP0, "mdp1_mdp_tdshp0", "mdp", 11),
	GATE_MDP0(CLK_MDP1_MDP_COLOR0, "mdp1_mdp_color0", "mdp", 12),
	GATE_MDP0(CLK_MDP1_MDP_WROT0, "mdp1_mdp_wrot0", "mdp", 13),
	GATE_MDP0(CLK_MDP1_MDP_WROT1, "mdp1_mdp_wrot1", "mdp", 14),
	GATE_MDP0(CLK_MDP1_MDP_WROT2, "mdp1_mdp_wrot2", "mdp", 15),
	GATE_MDP0(CLK_MDP1_MDP_FAKE_ENG0, "mdp1_mdp_fake_eng0", "mdp", 16),
	GATE_MDP0(CLK_MDP1_APB_DB, "mdp1_apb_db", "mdp", 17),
	GATE_MDP0(CLK_MDP1_MDP_DLI_ASYNC0, "mdp1_mdp_dli_async0", "mdp", 18),
	GATE_MDP0(CLK_MDP1_MDP_DLI_ASYNC1, "mdp1_mdp_dli_async1", "mdp", 19),
	GATE_MDP0(CLK_MDP1_MDP_DLO_ASYNC0, "mdp1_mdp_dlo_async0", "mdp", 20),
	GATE_MDP0(CLK_MDP1_MDP_DLO_ASYNC1, "mdp1_mdp_dlo_async1", "mdp", 21),
	GATE_MDP0(CLK_MDP1_MDP_DLI_ASYNC2, "mdp1_mdp_dli_async2", "mdp", 22),
	GATE_MDP0(CLK_MDP1_MDP_DLO_ASYNC2, "mdp1_mdp_dlo_async2", "mdp", 23),
	GATE_MDP0(CLK_MDP1_MDP_DLO_ASYNC3, "mdp1_mdp_dlo_async3", "mdp", 24),
	GATE_MDP0(CLK_MDP1_IMG_DL_ASYNC0, "mdp1_img_dl_async0", "mdp", 25),
	GATE_MDP0(CLK_MDP1_MDP_RROT0, "mdp1_mdp_rrot0", "mdp", 26),
	GATE_MDP0(CLK_MDP1_MDP_MERGE0, "mdp1_mdp_merge0", "mdp", 27),
	GATE_MDP0(CLK_MDP1_MDP_C3D0, "mdp1_mdp_c3d0", "mdp", 28),
	GATE_MDP0(CLK_MDP1_MDP_FG0, "mdp1_mdp_fg0", "mdp", 29),
	GATE_MDP0(CLK_MDP1_MDP_CLA2, "mdp1_mdp_cla2", "mdp", 30),
	GATE_MDP0(CLK_MDP1_MDP_DLO_ASYNC4, "mdp1_mdp_dlo_async4", "mdp", 31),
	/* MDP1-1 */
	GATE_MDP1(CLK_MDP1_VPP_RSZ0, "mdp1_vpp_rsz0", "mdp", 0),
	GATE_MDP1(CLK_MDP1_VPP_RSZ1, "mdp1_vpp_rsz1", "mdp", 1),
	GATE_MDP1(CLK_MDP1_MDP_DLO_ASYNC5, "mdp1_mdp_dlo_async5", "mdp", 2),
	GATE_MDP1(CLK_MDP1_IMG0, "mdp1_img0", "mdp", 3),
	GATE_MDP1(CLK_MDP1_F26M, "mdp1_f26m", "clk26m", 27),
	/* MDP1-2 */
	GATE_MDP2(CLK_MDP1_IMG_DL_RELAY0, "mdp1_img_dl_relay0", "mdp", 0),
	GATE_MDP2(CLK_MDP1_IMG_DL_RELAY1, "mdp1_img_dl_relay1", "mdp", 8),
};

static const struct mtk_clk_desc mdp1_mcd = {
	.clks = mdp1_clks,
	.num_clks = ARRAY_SIZE(mdp1_clks),
	.need_runtime_pm = true,
};


static const struct mtk_gate mdp_clks[] = {
	/* MDP0 */
	GATE_MDP0(CLK_MDP_MDP_MUTEX0, "mdp_mdp_mutex0", "mdp", 0),
	GATE_MDP0(CLK_MDP_SMI0, "mdp_smi0", "mdp", 1),
	GATE_MDP0(CLK_MDP_APB_BUS, "mdp_apb_bus", "mdp", 2),
	GATE_MDP0(CLK_MDP_MDP_RDMA0, "mdp_mdp_rdma0", "mdp", 3),
	GATE_MDP0(CLK_MDP_MDP_RDMA1, "mdp_mdp_rdma1", "mdp", 4),
	GATE_MDP0(CLK_MDP_MDP_RDMA2, "mdp_mdp_rdma2", "mdp", 5),
	GATE_MDP0(CLK_MDP_MDP_BIRSZ0, "mdp_mdp_birsz0", "mdp", 6),
	GATE_MDP0(CLK_MDP_MDP_HDR0, "mdp_mdp_hdr0", "mdp", 7),
	GATE_MDP0(CLK_MDP_MDP_AAL0, "mdp_mdp_aal0", "mdp", 8),
	GATE_MDP0(CLK_MDP_MDP_RSZ0, "mdp_mdp_rsz0", "mdp", 9),
	GATE_MDP0(CLK_MDP_MDP_RSZ2, "mdp_mdp_rsz2", "mdp", 10),
	GATE_MDP0(CLK_MDP_MDP_TDSHP0, "mdp_mdp_tdshp0", "mdp", 11),
	GATE_MDP0(CLK_MDP_MDP_COLOR0, "mdp_mdp_color0", "mdp", 12),
	GATE_MDP0(CLK_MDP_MDP_WROT0, "mdp_mdp_wrot0", "mdp", 13),
	GATE_MDP0(CLK_MDP_MDP_WROT1, "mdp_mdp_wrot1", "mdp", 14),
	GATE_MDP0(CLK_MDP_MDP_WROT2, "mdp_mdp_wrot2", "mdp", 15),
	GATE_MDP0(CLK_MDP_MDP_FAKE_ENG0, "mdp_mdp_fake_eng0", "mdp", 16),
	GATE_MDP0(CLK_MDP_APB_DB, "mdp_apb_db", "mdp", 17),
	GATE_MDP0(CLK_MDP_MDP_DLI_ASYNC0, "mdp_mdp_dli_async0", "mdp", 18),
	GATE_MDP0(CLK_MDP_MDP_DLI_ASYNC1, "mdp_mdp_dli_async1", "mdp", 19),
	GATE_MDP0(CLK_MDP_MDP_DLO_ASYNC0, "mdp_mdp_dlo_async0", "mdp", 20),
	GATE_MDP0(CLK_MDP_MDP_DLO_ASYNC1, "mdp_mdp_dlo_async1", "mdp", 21),
	GATE_MDP0(CLK_MDP_MDP_DLI_ASYNC2, "mdp_mdp_dli_async2", "mdp", 22),
	GATE_MDP0(CLK_MDP_MDP_DLO_ASYNC2, "mdp_mdp_dlo_async2", "mdp", 23),
	GATE_MDP0(CLK_MDP_MDP_DLO_ASYNC3, "mdp_mdp_dlo_async3", "mdp", 24),
	GATE_MDP0(CLK_MDP_IMG_DL_ASYNC0, "mdp_img_dl_async0", "mdp", 25),
	GATE_MDP0(CLK_MDP_MDP_RROT0, "mdp_mdp_rrot0", "mdp", 26),
	GATE_MDP0(CLK_MDP_MDP_MERGE0, "mdp_mdp_merge0", "mdp", 27),
	GATE_MDP0(CLK_MDP_MDP_C3D0, "mdp_mdp_c3d0", "mdp", 28),
	GATE_MDP0(CLK_MDP_MDP_FG0, "mdp_mdp_fg0", "mdp", 29),
	GATE_MDP0(CLK_MDP_MDP_CLA2, "mdp_mdp_cla2", "mdp", 30),
	GATE_MDP0(CLK_MDP_MDP_DLO_ASYNC4, "mdp_mdp_dlo_async4", "mdp", 31),
	/* MDP1 */
	GATE_MDP1(CLK_MDP_VPP_RSZ0, "mdp_vpp_rsz0", "mdp", 0),
	GATE_MDP1(CLK_MDP_VPP_RSZ1, "mdp_vpp_rsz1", "mdp", 1),
	GATE_MDP1(CLK_MDP_MDP_DLO_ASYNC5, "mdp_mdp_dlo_async5", "mdp", 2),
	GATE_MDP1(CLK_MDP_IMG0, "mdp_img0", "mdp", 3),
	GATE_MDP1(CLK_MDP_F26M, "mdp_f26m", "clk26m", 27),
	/* MDP2 */
	GATE_MDP2(CLK_MDP_IMG_DL_RELAY0, "mdp_img_dl_relay0", "mdp", 0),
	GATE_MDP2(CLK_MDP_IMG_DL_RELAY1, "mdp_img_dl_relay1", "mdp", 8),
};

static const struct mtk_clk_desc mdp_mcd = {
	.clks = mdp_clks,
	.num_clks = ARRAY_SIZE(mdp_clks),
	.need_runtime_pm = true,
};

static const struct of_device_id of_match_clk_mt8196_mdpsys[] = {
	{ .compatible = "mediatek,mt8196-mdpsys0", .data = &mdp_mcd },
	{ .compatible = "mediatek,mt8196-mdpsys1", .data = &mdp1_mcd },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, of_match_clk_mt8196_mdpsys);

static struct platform_driver clk_mt8196_mdpsys_drv = {
	.probe = mtk_clk_simple_probe,
	.remove = mtk_clk_simple_remove,
	.driver = {
		.name = "clk-mt8196-mdpsys",
		.of_match_table = of_match_clk_mt8196_mdpsys,
	},
};
module_platform_driver(clk_mt8196_mdpsys_drv);

MODULE_DESCRIPTION("MediaTek MT8196 Multimedia Data Path clocks driver");
MODULE_LICENSE("GPL");