// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (c) 2014-2015 Hisilicon Limited.
 */

#include "hns_dsaf_mac.h"
#include "hns_dsaf_misc.h"
#include "hns_dsaf_ppe.h"
#include "hns_dsaf_reg.h"

enum _dsm_op_index {
        HNS_OP_RESET_FUNC               = 0x1,
        HNS_OP_SERDES_LP_FUNC           = 0x2,
        HNS_OP_LED_SET_FUNC             = 0x3,
        HNS_OP_GET_PORT_TYPE_FUNC       = 0x4,
        HNS_OP_GET_SFP_STAT_FUNC        = 0x5,
        HNS_OP_LOCATE_LED_SET_FUNC      = 0x6,
};

enum _dsm_rst_type {
        HNS_DSAF_RESET_FUNC     = 0x1,
        HNS_PPE_RESET_FUNC      = 0x2,
        HNS_XGE_RESET_FUNC      = 0x4,
        HNS_GE_RESET_FUNC       = 0x5,
        HNS_DSAF_CHN_RESET_FUNC = 0x6,
        HNS_ROCE_RESET_FUNC     = 0x7,
};

static const guid_t hns_dsaf_acpi_dsm_guid =
        GUID_INIT(0x1A85AA1A, 0xE293, 0x415E,
                  0x8E, 0x28, 0x8D, 0x69, 0x0A, 0x0F, 0x82, 0x0A);

static void dsaf_write_sub(struct dsaf_device *dsaf_dev, u32 reg, u32 val)
{
        if (dsaf_dev->sub_ctrl)
                dsaf_write_syscon(dsaf_dev->sub_ctrl, reg, val);
        else
                dsaf_write_reg(dsaf_dev->sc_base, reg, val);
}

static u32 dsaf_read_sub(struct dsaf_device *dsaf_dev, u32 reg)
{
        u32 ret = 0;
        int err;

        if (dsaf_dev->sub_ctrl) {
                err = dsaf_read_syscon(dsaf_dev->sub_ctrl, reg, &ret);
                if (err)
                        dev_err(dsaf_dev->dev, "dsaf_read_syscon error %d!\n",
                                err);
        } else {
                ret = dsaf_read_reg(dsaf_dev->sc_base, reg);
        }

        return ret;
}

static void hns_dsaf_acpi_ledctrl_by_port(struct hns_mac_cb *mac_cb, u8 op_type,
                                          u32 link, u32 port, u32 act)
{
        union acpi_object *obj;
        union acpi_object obj_args[3], argv4;

        obj_args[0].integer.type = ACPI_TYPE_INTEGER;
        obj_args[0].integer.value = link;
        obj_args[1].integer.type = ACPI_TYPE_INTEGER;
        obj_args[1].integer.value = port;
        obj_args[2].integer.type = ACPI_TYPE_INTEGER;
        obj_args[2].integer.value = act;

        argv4.type = ACPI_TYPE_PACKAGE;
        argv4.package.count = 3;
        argv4.package.elements = obj_args;

        obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
                                &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
        if (!obj) {
                dev_warn(mac_cb->dev, "ledctrl fail, link:%d port:%d act:%d!\n",
                         link, port, act);
                return;
        }

        ACPI_FREE(obj);
}

static void hns_dsaf_acpi_locate_ledctrl_by_port(struct hns_mac_cb *mac_cb,
                                                 u8 op_type, u32 locate,
                                                 u32 port)
{
        union acpi_object obj_args[2], argv4;
        union acpi_object *obj;

        obj_args[0].integer.type = ACPI_TYPE_INTEGER;
        obj_args[0].integer.value = locate;
        obj_args[1].integer.type = ACPI_TYPE_INTEGER;
        obj_args[1].integer.value = port;

        argv4.type = ACPI_TYPE_PACKAGE;
        argv4.package.count = 2;
        argv4.package.elements = obj_args;

        obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
                                &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
        if (!obj) {
                dev_err(mac_cb->dev, "ledctrl fail, locate:%d port:%d!\n",
                        locate, port);
                return;
        }

        ACPI_FREE(obj);
}

static void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status,
                             u16 speed, int data)
{
        int speed_reg = 0;
        u8 value;

        if (!mac_cb) {
                pr_err("sfp_led_opt mac_dev is null!\n");
                return;
        }
        if (!mac_cb->cpld_ctrl) {
                dev_err(mac_cb->dev, "mac_id=%d, cpld syscon is null !\n",
                        mac_cb->mac_id);
                return;
        }

        if (speed == MAC_SPEED_10000)
                speed_reg = 1;

        value = mac_cb->cpld_led_value;

        if (link_status) {
                dsaf_set_bit(value, DSAF_LED_LINK_B, link_status);
                dsaf_set_field(value, DSAF_LED_SPEED_M,
                               DSAF_LED_SPEED_S, speed_reg);
                dsaf_set_bit(value, DSAF_LED_DATA_B, data);

                if (value != mac_cb->cpld_led_value) {
                        dsaf_write_syscon(mac_cb->cpld_ctrl,
                                          mac_cb->cpld_ctrl_reg, value);
                        mac_cb->cpld_led_value = value;
                }
        } else {
                value = (mac_cb->cpld_led_value) & (0x1 << DSAF_LED_ANCHOR_B);
                dsaf_write_syscon(mac_cb->cpld_ctrl,
                                  mac_cb->cpld_ctrl_reg, value);
                mac_cb->cpld_led_value = value;
        }
}

static void hns_cpld_set_led_acpi(struct hns_mac_cb *mac_cb, int link_status,
                                  u16 speed, int data)
{
        if (!mac_cb) {
                pr_err("cpld_led_set mac_cb is null!\n");
                return;
        }

        hns_dsaf_acpi_ledctrl_by_port(mac_cb, HNS_OP_LED_SET_FUNC,
                                      link_status, mac_cb->mac_id, data);
}

static void cpld_led_reset(struct hns_mac_cb *mac_cb)
{
        if (!mac_cb || !mac_cb->cpld_ctrl)
                return;

        dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
                          CPLD_LED_DEFAULT_VALUE);
        mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE;
}

static void cpld_led_reset_acpi(struct hns_mac_cb *mac_cb)
{
        if (!mac_cb) {
                pr_err("cpld_led_reset mac_cb is null!\n");
                return;
        }

        if (mac_cb->media_type != HNAE_MEDIA_TYPE_FIBER)
                return;

        hns_dsaf_acpi_ledctrl_by_port(mac_cb, HNS_OP_LED_SET_FUNC,
                                      0, mac_cb->mac_id, 0);
}

static int cpld_set_led_id(struct hns_mac_cb *mac_cb,
                           enum hnae_led_state status)
{
        u32 val = 0;
        int ret;

        if (!mac_cb->cpld_ctrl)
                return 0;

        switch (status) {
        case HNAE_LED_ACTIVE:
                ret = dsaf_read_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
                                       &val);
                if (ret)
                        return ret;

                dsaf_set_bit(val, DSAF_LED_ANCHOR_B, CPLD_LED_ON_VALUE);
                dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
                                  val);
                mac_cb->cpld_led_value = val;
                break;
        case HNAE_LED_INACTIVE:
                dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B,
                             CPLD_LED_DEFAULT_VALUE);
                dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
                                  mac_cb->cpld_led_value);
                break;
        default:
                dev_err(mac_cb->dev, "invalid led state: %d!", status);
                return -EINVAL;
        }

        return 0;
}

static int cpld_set_led_id_acpi(struct hns_mac_cb *mac_cb,
                                enum hnae_led_state status)
{
        switch (status) {
        case HNAE_LED_ACTIVE:
                hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb,
                                                     HNS_OP_LOCATE_LED_SET_FUNC,
                                                     CPLD_LED_ON_VALUE,
                                                     mac_cb->mac_id);
                break;
        case HNAE_LED_INACTIVE:
                hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb,
                                                     HNS_OP_LOCATE_LED_SET_FUNC,
                                                     CPLD_LED_DEFAULT_VALUE,
                                                     mac_cb->mac_id);
                break;
        default:
                dev_err(mac_cb->dev, "invalid led state: %d!", status);
                return -EINVAL;
        }

        return 0;
}

#define RESET_REQ_OR_DREQ 1

static void hns_dsaf_acpi_srst_by_port(struct dsaf_device *dsaf_dev, u8 op_type,
                                       u32 port_type, u32 port, u32 val)
{
        union acpi_object *obj;
        union acpi_object obj_args[3], argv4;

        obj_args[0].integer.type = ACPI_TYPE_INTEGER;
        obj_args[0].integer.value = port_type;
        obj_args[1].integer.type = ACPI_TYPE_INTEGER;
        obj_args[1].integer.value = port;
        obj_args[2].integer.type = ACPI_TYPE_INTEGER;
        obj_args[2].integer.value = val;

        argv4.type = ACPI_TYPE_PACKAGE;
        argv4.package.count = 3;
        argv4.package.elements = obj_args;

        obj = acpi_evaluate_dsm(ACPI_HANDLE(dsaf_dev->dev),
                                &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
        if (!obj) {
                dev_warn(dsaf_dev->dev, "reset port_type%d port%d fail!",
                         port_type, port);
                return;
        }

        ACPI_FREE(obj);
}

static void hns_dsaf_rst(struct dsaf_device *dsaf_dev, bool dereset)
{
        u32 xbar_reg_addr;
        u32 nt_reg_addr;

        if (!dereset) {
                xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_REQ_REG;
                nt_reg_addr = DSAF_SUB_SC_NT_RESET_REQ_REG;
        } else {
                xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_DREQ_REG;
                nt_reg_addr = DSAF_SUB_SC_NT_RESET_DREQ_REG;
        }

        dsaf_write_sub(dsaf_dev, xbar_reg_addr, RESET_REQ_OR_DREQ);
        dsaf_write_sub(dsaf_dev, nt_reg_addr, RESET_REQ_OR_DREQ);
}

static void hns_dsaf_rst_acpi(struct dsaf_device *dsaf_dev, bool dereset)
{
        hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
                                   HNS_DSAF_RESET_FUNC,
                                   0, dereset);
}

static void hns_dsaf_xge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
                                      bool dereset)
{
        u32 reg_val = 0;
        u32 reg_addr;

        if (port >= DSAF_XGE_NUM)
                return;

        reg_val |= RESET_REQ_OR_DREQ;
        reg_val |= 0x2082082 << dsaf_dev->mac_cb[port]->port_rst_off;

        if (!dereset)
                reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG;
        else
                reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG;

        dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
}

static void hns_dsaf_xge_srst_by_port_acpi(struct dsaf_device *dsaf_dev,
                                           u32 port, bool dereset)
{
        hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
                                   HNS_XGE_RESET_FUNC, port, dereset);
}

static void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
                                     bool dereset)
{
        u32 reg_val_1;
        u32 reg_val_2;
        u32 port_rst_off;

        if (port >= DSAF_GE_NUM)
                return;

        if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
                /* DSAF_MAX_PORT_NUM is 6, but DSAF_GE_NUM is 8.
                   We need check to prevent array overflow */
                if (port >= DSAF_MAX_PORT_NUM)
                        return;
                reg_val_1  = 0x1 << port;
                port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;
                /* there is difference between V1 and V2 in register.*/
                reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ?
                                0x1041041 : 0x2082082;
                reg_val_2 <<= port_rst_off;

                if (!dereset) {
                        dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG,
                                       reg_val_1);

                        dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ0_REG,
                                       reg_val_2);
                } else {
                        dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ0_REG,
                                       reg_val_2);

                        dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG,
                                       reg_val_1);
                }
        } else {
                reg_val_1 = 0x15540;
                reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ? 0x100 : 0x40;

                reg_val_1 <<= dsaf_dev->reset_offset;
                reg_val_2 <<= dsaf_dev->reset_offset;

                if (!dereset) {
                        dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG,
                                       reg_val_1);

                        dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_REQ_REG,
                                       reg_val_2);
                } else {
                        dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG,
                                       reg_val_1);

                        dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_DREQ_REG,
                                       reg_val_2);
                }
        }
}

static void hns_dsaf_ge_srst_by_port_acpi(struct dsaf_device *dsaf_dev,
                                          u32 port, bool dereset)
{
        hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
                                   HNS_GE_RESET_FUNC, port, dereset);
}

static void hns_ppe_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
                                 bool dereset)
{
        u32 reg_val = 0;
        u32 reg_addr;

        reg_val |= RESET_REQ_OR_DREQ << dsaf_dev->mac_cb[port]->port_rst_off;

        if (!dereset)
                reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
        else
                reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;

        dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
}

static void
hns_ppe_srst_by_port_acpi(struct dsaf_device *dsaf_dev, u32 port, bool dereset)
{
        hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
                                   HNS_PPE_RESET_FUNC, port, dereset);
}

static void hns_ppe_com_srst(struct dsaf_device *dsaf_dev, bool dereset)
{
        u32 reg_val;
        u32 reg_addr;

        if (!(dev_of_node(dsaf_dev->dev)))
                return;

        if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
                reg_val = RESET_REQ_OR_DREQ;
                if (!dereset)
                        reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_REQ_REG;
                else
                        reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_DREQ_REG;

        } else {
                reg_val = 0x100 << dsaf_dev->reset_offset;

                if (!dereset)
                        reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
                else
                        reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
        }

        dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
}

/**
 * hns_mac_get_phy_if - get phy ifterface form serdes mode
 * @mac_cb: mac control block
 * retuen phy interface
 */
static phy_interface_t hns_mac_get_phy_if(struct hns_mac_cb *mac_cb)
{
        u32 mode;
        u32 reg;
        bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver);
        int mac_id = mac_cb->mac_id;
        phy_interface_t phy_if;

        if (is_ver1) {
                if (HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev))
                        return PHY_INTERFACE_MODE_SGMII;

                if (mac_id >= 0 && mac_id <= 3)
                        reg = HNS_MAC_HILINK4_REG;
                else
                        reg = HNS_MAC_HILINK3_REG;
        } else {
                if (!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev) && mac_id <= 3)
                        reg = HNS_MAC_HILINK4V2_REG;
                else
                        reg = HNS_MAC_HILINK3V2_REG;
        }

        mode = dsaf_read_sub(mac_cb->dsaf_dev, reg);
        if (dsaf_get_bit(mode, mac_cb->port_mode_off))
                phy_if = PHY_INTERFACE_MODE_XGMII;
        else
                phy_if = PHY_INTERFACE_MODE_SGMII;

        return phy_if;
}

static phy_interface_t hns_mac_get_phy_if_acpi(struct hns_mac_cb *mac_cb)
{
        phy_interface_t phy_if = PHY_INTERFACE_MODE_NA;
        union acpi_object *obj;
        union acpi_object obj_args, argv4;

        obj_args.integer.type = ACPI_TYPE_INTEGER;
        obj_args.integer.value = mac_cb->mac_id;

        argv4.type = ACPI_TYPE_PACKAGE;
        argv4.package.count = 1;
        argv4.package.elements = &obj_args;

        obj = acpi_evaluate_dsm_typed(ACPI_HANDLE(mac_cb->dev),
                                      &hns_dsaf_acpi_dsm_guid, 0,
                                      HNS_OP_GET_PORT_TYPE_FUNC, &argv4,
                                      ACPI_TYPE_INTEGER);
        if (!obj)
                return phy_if;

        phy_if = obj->integer.value ?
                PHY_INTERFACE_MODE_XGMII : PHY_INTERFACE_MODE_SGMII;

        dev_dbg(mac_cb->dev, "mac_id=%d, phy_if=%d\n", mac_cb->mac_id, phy_if);

        ACPI_FREE(obj);

        return phy_if;
}

static int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
{
        u32 val = 0;
        int ret;

        if (!mac_cb->cpld_ctrl)
                return -ENODEV;

        ret = dsaf_read_syscon(mac_cb->cpld_ctrl,
                               mac_cb->cpld_ctrl_reg + MAC_SFP_PORT_OFFSET,
                               &val);
        if (ret)
                return ret;

        *sfp_prsnt = !val;
        return 0;
}

static int hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
{
        union acpi_object *obj;
        union acpi_object obj_args, argv4;

        obj_args.integer.type = ACPI_TYPE_INTEGER;
        obj_args.integer.value = mac_cb->mac_id;

        argv4.type = ACPI_TYPE_PACKAGE;
        argv4.package.count = 1;
        argv4.package.elements = &obj_args;

        obj = acpi_evaluate_dsm_typed(ACPI_HANDLE(mac_cb->dev),
                                      &hns_dsaf_acpi_dsm_guid, 0,
                                      HNS_OP_GET_SFP_STAT_FUNC, &argv4,
                                      ACPI_TYPE_INTEGER);
        if (!obj)
                return -ENODEV;

        *sfp_prsnt = obj->integer.value;

        ACPI_FREE(obj);

        return 0;
}

/**
 * hns_mac_config_sds_loopback - set loop back for serdes
 * @mac_cb: mac control block
 * @en: enable or disable
 * return 0 == success
 */
static int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, bool en)
{
        const u8 lane_id[] = {
                0,      /* mac 0 -> lane 0 */
                1,      /* mac 1 -> lane 1 */
                2,      /* mac 2 -> lane 2 */
                3,      /* mac 3 -> lane 3 */
                2,      /* mac 4 -> lane 2 */
                3,      /* mac 5 -> lane 3 */
                0,      /* mac 6 -> lane 0 */
                1       /* mac 7 -> lane 1 */
        };
#define RX_CSR(lane, reg) ((0x4080 + (reg) * 0x0002 + (lane) * 0x0200) * 2)
        u64 reg_offset = RX_CSR(lane_id[mac_cb->mac_id], 0);

        int sfp_prsnt = 0;
        int ret = hns_mac_get_sfp_prsnt(mac_cb, &sfp_prsnt);

        if (!mac_cb->phy_dev) {
                if (ret)
                        pr_info("please confirm sfp is present or not\n");
                else
                        if (!sfp_prsnt)
                                pr_info("no sfp in this eth\n");
        }

        if (mac_cb->serdes_ctrl) {
                u32 origin = 0;

                if (!AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver)) {
#define HILINK_ACCESS_SEL_CFG           0x40008
                        /* hilink4 & hilink3 use the same xge training and
                         * xge u adaptor. There is a hilink access sel cfg
                         * register to select which one to be configed
                         */
                        if ((!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev)) &&
                            (mac_cb->mac_id <= 3))
                                dsaf_write_syscon(mac_cb->serdes_ctrl,
                                                  HILINK_ACCESS_SEL_CFG, 0);
                        else
                                dsaf_write_syscon(mac_cb->serdes_ctrl,
                                                  HILINK_ACCESS_SEL_CFG, 3);
                }

                ret = dsaf_read_syscon(mac_cb->serdes_ctrl, reg_offset,
                                       &origin);
                if (ret)
                        return ret;

                dsaf_set_field(origin, 1ull << 10, 10, en);
                dsaf_write_syscon(mac_cb->serdes_ctrl, reg_offset, origin);
        } else {
                u8 __iomem *base_addr = mac_cb->serdes_vaddr +
                                (mac_cb->mac_id <= 3 ? 0x00280000 : 0x00200000);
                dsaf_set_reg_field(base_addr, reg_offset, 1ull << 10, 10, en);
        }

        return 0;
}

static int
hns_mac_config_sds_loopback_acpi(struct hns_mac_cb *mac_cb, bool en)
{
        union acpi_object *obj;
        union acpi_object obj_args[3], argv4;

        obj_args[0].integer.type = ACPI_TYPE_INTEGER;
        obj_args[0].integer.value = mac_cb->mac_id;
        obj_args[1].integer.type = ACPI_TYPE_INTEGER;
        obj_args[1].integer.value = en;

        argv4.type = ACPI_TYPE_PACKAGE;
        argv4.package.count = 2;
        argv4.package.elements = obj_args;

        obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dsaf_dev->dev),
                                &hns_dsaf_acpi_dsm_guid, 0,
                                HNS_OP_SERDES_LP_FUNC, &argv4);
        if (!obj) {
                dev_warn(mac_cb->dsaf_dev->dev, "set port%d serdes lp fail!",
                         mac_cb->mac_id);

                return -ENOTSUPP;
        }

        ACPI_FREE(obj);

        return 0;
}

struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev)
{
        struct dsaf_misc_op *misc_op;

        misc_op = devm_kzalloc(dsaf_dev->dev, sizeof(*misc_op), GFP_KERNEL);
        if (!misc_op)
                return NULL;

        if (dev_of_node(dsaf_dev->dev)) {
                misc_op->cpld_set_led = hns_cpld_set_led;
                misc_op->cpld_reset_led = cpld_led_reset;
                misc_op->cpld_set_led_id = cpld_set_led_id;

                misc_op->dsaf_reset = hns_dsaf_rst;
                misc_op->xge_srst = hns_dsaf_xge_srst_by_port;
                misc_op->ge_srst = hns_dsaf_ge_srst_by_port;
                misc_op->ppe_srst = hns_ppe_srst_by_port;
                misc_op->ppe_comm_srst = hns_ppe_com_srst;

                misc_op->get_phy_if = hns_mac_get_phy_if;
                misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt;

                misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback;
        } else if (is_acpi_node(dsaf_dev->dev->fwnode)) {
                misc_op->cpld_set_led = hns_cpld_set_led_acpi;
                misc_op->cpld_reset_led = cpld_led_reset_acpi;
                misc_op->cpld_set_led_id = cpld_set_led_id_acpi;

                misc_op->dsaf_reset = hns_dsaf_rst_acpi;
                misc_op->xge_srst = hns_dsaf_xge_srst_by_port_acpi;
                misc_op->ge_srst = hns_dsaf_ge_srst_by_port_acpi;
                misc_op->ppe_srst = hns_ppe_srst_by_port_acpi;
                misc_op->ppe_comm_srst = hns_ppe_com_srst;

                misc_op->get_phy_if = hns_mac_get_phy_if_acpi;
                misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt_acpi;

                misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback_acpi;
        } else {
                devm_kfree(dsaf_dev->dev, (void *)misc_op);
                misc_op = NULL;
        }

        return (void *)misc_op;
}

struct
platform_device *hns_dsaf_find_platform_device(struct fwnode_handle *fwnode)
{
        struct device *dev;

        dev = bus_find_device_by_fwnode(&platform_bus_type, fwnode);
        return dev ? to_platform_device(dev) : NULL;
}