ubuntu-linux-kernel/drivers/clk/mediatek/clk-mt6797-mm.c

/*
 * Copyright (c) 2017 MediaTek Inc.
 * Author: Kevin Chen <kevin-cw.chen@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.
 */

#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include <dt-bindings/clock/mt6797-clk.h>

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

static const struct mtk_gate_regs mm0_cg_regs = {
	.set_ofs = 0x0104,
	.clr_ofs = 0x0108,
	.sta_ofs = 0x0100,
};

static const struct mtk_gate_regs mm1_cg_regs = {
	.set_ofs = 0x0114,
	.clr_ofs = 0x0118,
	.sta_ofs = 0x0110,
};

#define GATE_MM0(_id, _name, _parent, _shift) {			\
	.id = _id,					\
	.name = _name,					\
	.parent_name = _parent,				\
	.regs = &mm0_cg_regs,				\
	.shift = _shift,				\
	.ops = &mtk_clk_gate_ops_setclr,		\
}

#define GATE_MM1(_id, _name, _parent, _shift) {			\
	.id = _id,					\
	.name = _name,					\
	.parent_name = _parent,				\
	.regs = &mm1_cg_regs,				\
	.shift = _shift,				\
	.ops = &mtk_clk_gate_ops_setclr,		\
}

static const struct mtk_gate mm_clks[] = {
	GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "mm_sel", 0),
	GATE_MM0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1),
	GATE_MM0(CLK_MM_SMI_LARB5, "mm_smi_larb5", "mm_sel", 2),
	GATE_MM0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 3),
	GATE_MM0(CLK_MM_MDP_RDMA0, "mm_mdp_rdma0", "mm_sel", 4),
	GATE_MM0(CLK_MM_MDP_RDMA1, "mm_mdp_rdma1", "mm_sel", 5),
	GATE_MM0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 6),
	GATE_MM0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 7),
	GATE_MM0(CLK_MM_MDP_RSZ2, "mm_mdp_rsz2", "mm_sel", 8),
	GATE_MM0(CLK_MM_MDP_TDSHP, "mm_mdp_tdshp", "mm_sel", 9),
	GATE_MM0(CLK_MM_MDP_COLOR, "mm_mdp_color", "mm_sel", 10),
	GATE_MM0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11),
	GATE_MM0(CLK_MM_MDP_WROT0, "mm_mdp_wrot0", "mm_sel", 12),
	GATE_MM0(CLK_MM_MDP_WROT1, "mm_mdp_wrot1", "mm_sel", 13),
	GATE_MM0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 14),
	GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "mm_sel", 15),
	GATE_MM0(CLK_MM_DISP_OVL1, "mm_disp_ovl1", "mm_sel", 16),
	GATE_MM0(CLK_MM_DISP_OVL0_2L, "mm_disp_ovl0_2l", "mm_sel", 17),
	GATE_MM0(CLK_MM_DISP_OVL1_2L, "mm_disp_ovl1_2l", "mm_sel", 18),
	GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "mm_sel", 19),
	GATE_MM0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 20),
	GATE_MM0(CLK_MM_DISP_WDMA0, "mm_disp_wdma0", "mm_sel", 21),
	GATE_MM0(CLK_MM_DISP_WDMA1, "mm_disp_wdma1", "mm_sel", 22),
	GATE_MM0(CLK_MM_DISP_COLOR, "mm_disp_color", "mm_sel", 23),
	GATE_MM0(CLK_MM_DISP_CCORR, "mm_disp_ccorr", "mm_sel", 24),
	GATE_MM0(CLK_MM_DISP_AAL, "mm_disp_aal", "mm_sel", 25),
	GATE_MM0(CLK_MM_DISP_GAMMA, "mm_disp_gamma", "mm_sel", 26),
	GATE_MM0(CLK_MM_DISP_OD, "mm_disp_od", "mm_sel", 27),
	GATE_MM0(CLK_MM_DISP_DITHER, "mm_disp_dither", "mm_sel", 28),
	GATE_MM0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 29),
	GATE_MM0(CLK_MM_DISP_DSC, "mm_disp_dsc", "mm_sel", 30),
	GATE_MM0(CLK_MM_DISP_SPLIT, "mm_disp_split", "mm_sel", 31),
	GATE_MM1(CLK_MM_DSI0_MM_CLOCK, "mm_dsi0_mm_clock", "mm_sel", 0),
	GATE_MM1(CLK_MM_DSI1_MM_CLOCK, "mm_dsi1_mm_clock", "mm_sel", 2),
	GATE_MM1(CLK_MM_DPI_MM_CLOCK, "mm_dpi_mm_clock", "mm_sel", 4),
	GATE_MM1(CLK_MM_DPI_INTERFACE_CLOCK, "mm_dpi_interface_clock",
		 "dpi0_sel", 5),
	GATE_MM1(CLK_MM_LARB4_AXI_ASIF_MM_CLOCK, "mm_larb4_axi_asif_mm_clock",
		 "mm_sel", 6),
	GATE_MM1(CLK_MM_LARB4_AXI_ASIF_MJC_CLOCK, "mm_larb4_axi_asif_mjc_clock",
		 "mjc_sel", 7),
	GATE_MM1(CLK_MM_DISP_OVL0_MOUT_CLOCK, "mm_disp_ovl0_mout_clock",
		 "mm_sel", 8),
	GATE_MM1(CLK_MM_FAKE_ENG2, "mm_fake_eng2", "mm_sel", 9),
	GATE_MM1(CLK_MM_DSI0_INTERFACE_CLOCK, "mm_dsi0_interface_clock",
		 "clk26m", 1),
	GATE_MM1(CLK_MM_DSI1_INTERFACE_CLOCK, "mm_dsi1_interface_clock",
		 "clk26m", 3),
};

static const struct of_device_id of_match_clk_mt6797_mm[] = {
	{ .compatible = "mediatek,mt6797-mmsys", },
	{}
};

static int clk_mt6797_mm_probe(struct platform_device *pdev)
{
	struct clk_onecell_data *clk_data;
	int r;
	struct device_node *node = pdev->dev.of_node;

	clk_data = mtk_alloc_clk_data(CLK_MM_NR);

	mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks),
			       clk_data);

	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
	if (r)
		dev_err(&pdev->dev,
			"could not register clock provider: %s: %d\n",
			pdev->name, r);

	return r;
}

static struct platform_driver clk_mt6797_mm_drv = {
	.probe = clk_mt6797_mm_probe,
	.driver = {
		.name = "clk-mt6797-mm",
		.of_match_table = of_match_clk_mt6797_mm,
	},
};

builtin_platform_driver(clk_mt6797_mm_drv);