root/drivers/clk/mediatek/clk-mt7988-apmixed.c
// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2023 MediaTek Inc.
 * Author: Sam Shih <sam.shih@mediatek.com>
 * Author: Xiufeng Li <Xiufeng.Li@mediatek.com>
 */

#include <linux/clk-provider.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include "clk-mtk.h"
#include "clk-gate.h"
#include "clk-mux.h"
#include "clk-pll.h"
#include <dt-bindings/clock/mediatek,mt7988-clk.h>

#define MT7988_PLL_FMAX (2500UL * MHZ)
#define MT7988_PCW_CHG_BIT 2

#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _rst_bar_mask, _pcwbits, _pd_reg,     \
            _pd_shift, _tuner_reg, _tuner_en_reg, _tuner_en_bit, _pcw_reg, _pcw_shift,          \
            _pcw_chg_reg)                                                                       \
        {                                                                                       \
                .id = _id,                                                                      \
                .name = _name,                                                                  \
                .reg = _reg,                                                                    \
                .pwr_reg = _pwr_reg,                                                            \
                .en_mask = _en_mask,                                                            \
                .flags = _flags,                                                                \
                .rst_bar_mask = BIT(_rst_bar_mask),                                             \
                .fmax = MT7988_PLL_FMAX,                                                        \
                .pcwbits = _pcwbits,                                                            \
                .pd_reg = _pd_reg,                                                              \
                .pd_shift = _pd_shift,                                                          \
                .tuner_reg = _tuner_reg,                                                        \
                .tuner_en_reg = _tuner_en_reg,                                                  \
                .tuner_en_bit = _tuner_en_bit,                                                  \
                .pcw_reg = _pcw_reg,                                                            \
                .pcw_shift = _pcw_shift,                                                        \
                .pcw_chg_reg = _pcw_chg_reg,                                                    \
                .pcw_chg_bit = MT7988_PCW_CHG_BIT,                                              \
                .parent_name = "clkxtal",                                                       \
        }

static const struct mtk_pll_data plls[] = {
        PLL(CLK_APMIXED_NETSYSPLL, "netsyspll", 0x0104, 0x0110, 0x00000001, 0, 0, 32, 0x0104, 4, 0,
            0, 0, 0x0108, 0, 0x0104),
        PLL(CLK_APMIXED_MPLL, "mpll", 0x0114, 0x0120, 0xff000001, HAVE_RST_BAR, 23, 32, 0x0114, 4,
            0, 0, 0, 0x0118, 0, 0x0114),
        PLL(CLK_APMIXED_MMPLL, "mmpll", 0x0124, 0x0130, 0xff000001, HAVE_RST_BAR, 23, 32, 0x0124, 4,
            0, 0, 0, 0x0128, 0, 0x0124),
        PLL(CLK_APMIXED_APLL2, "apll2", 0x0134, 0x0140, 0x00000001, 0, 0, 32, 0x0134, 4, 0x0704,
            0x0700, 1, 0x0138, 0, 0x0134),
        PLL(CLK_APMIXED_NET1PLL, "net1pll", 0x0144, 0x0150, 0xff000001, HAVE_RST_BAR, 23, 32,
            0x0144, 4, 0, 0, 0, 0x0148, 0, 0x0144),
        PLL(CLK_APMIXED_NET2PLL, "net2pll", 0x0154, 0x0160, 0xff000001, (HAVE_RST_BAR | PLL_AO), 23,
            32, 0x0154, 4, 0, 0, 0, 0x0158, 0, 0x0154),
        PLL(CLK_APMIXED_WEDMCUPLL, "wedmcupll", 0x0164, 0x0170, 0x00000001, 0, 0, 32, 0x0164, 4, 0,
            0, 0, 0x0168, 0, 0x0164),
        PLL(CLK_APMIXED_SGMPLL, "sgmpll", 0x0174, 0x0180, 0x00000001, 0, 0, 32, 0x0174, 4, 0, 0, 0,
            0x0178, 0, 0x0174),
        PLL(CLK_APMIXED_ARM_B, "arm_b", 0x0204, 0x0210, 0xff000001, (HAVE_RST_BAR | PLL_AO), 23, 32,
            0x0204, 4, 0, 0, 0, 0x0208, 0, 0x0204),
        PLL(CLK_APMIXED_CCIPLL2_B, "ccipll2_b", 0x0214, 0x0220, 0xff000001, HAVE_RST_BAR, 23, 32,
            0x0214, 4, 0, 0, 0, 0x0218, 0, 0x0214),
        PLL(CLK_APMIXED_USXGMIIPLL, "usxgmiipll", 0x0304, 0x0310, 0xff000001, HAVE_RST_BAR, 23, 32,
            0x0304, 4, 0, 0, 0, 0x0308, 0, 0x0304),
        PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x0314, 0x0320, 0x00000001, 0, 0, 32, 0x0314, 4, 0, 0,
            0, 0x0318, 0, 0x0314),
};

static const struct of_device_id of_match_clk_mt7988_apmixed[] = {
        { .compatible = "mediatek,mt7988-apmixedsys" },
        { /* sentinel */ }
};

static int clk_mt7988_apmixed_probe(struct platform_device *pdev)
{
        struct clk_hw_onecell_data *clk_data;
        struct device_node *node = pdev->dev.of_node;
        int r;

        clk_data = mtk_alloc_clk_data(ARRAY_SIZE(plls));
        if (!clk_data)
                return -ENOMEM;

        r = mtk_clk_register_plls(&pdev->dev, plls, ARRAY_SIZE(plls), clk_data);
        if (r)
                goto free_apmixed_data;

        r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
        if (r)
                goto unregister_plls;

        return r;

unregister_plls:
        mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data);
free_apmixed_data:
        mtk_free_clk_data(clk_data);
        return r;
}

static struct platform_driver clk_mt7988_apmixed_drv = {
        .probe = clk_mt7988_apmixed_probe,
        .driver = {
                .name = "clk-mt7988-apmixed",
                .of_match_table = of_match_clk_mt7988_apmixed,
        },
};
builtin_platform_driver(clk_mt7988_apmixed_drv);

MODULE_DESCRIPTION("MediaTek MT7988 apmixedsys clocks driver");
MODULE_LICENSE("GPL");