root/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2022 MediaTek Inc.
 * Copyright (c) 2022 BayLibre, SAS
 */
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/types.h>
#include <linux/units.h>
#include <linux/nvmem-consumer.h>

#include "phy-mtk-io.h"
#include "phy-mtk-hdmi.h"
#include "phy-mtk-hdmi-mt8195.h"

static void mtk_hdmi_ana_fifo_en(struct mtk_hdmi_phy *hdmi_phy)
{
        /* make data fifo writable for hdmi2.0 */
        mtk_phy_set_bits(hdmi_phy->regs + HDMI_ANA_CTL, REG_ANA_HDMI20_FIFO_EN);
}

static void
mtk_phy_tmds_clk_ratio(struct mtk_hdmi_phy *hdmi_phy, bool enable)
{
        void __iomem *regs = hdmi_phy->regs;

        mtk_hdmi_ana_fifo_en(hdmi_phy);

        /* HDMI 2.0 specification, 3.4Gbps <= TMDS Bit Rate <= 6G,
         * clock bit ratio 1:40, under 3.4Gbps, clock bit ratio 1:10
         */
        if (enable)
                mtk_phy_update_field(regs + HDMI20_CLK_CFG, REG_TXC_DIV, 3);
        else
                mtk_phy_clear_bits(regs + HDMI20_CLK_CFG, REG_TXC_DIV);
}

static void mtk_hdmi_pll_sel_src(struct clk_hw *hw)
{
        struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
        void __iomem *regs = hdmi_phy->regs;

        mtk_phy_clear_bits(regs + HDMI_CTL_3, REG_HDMITX_REF_XTAL_SEL);
        mtk_phy_clear_bits(regs + HDMI_CTL_3, REG_HDMITX_REF_RESPLL_SEL);

        /* DA_HDMITX21_REF_CK for TXPLL input source */
        mtk_phy_clear_bits(regs + HDMI_1_CFG_10, RG_HDMITXPLL_REF_CK_SEL);
}

static void mtk_hdmi_pll_perf(struct clk_hw *hw)
{
        struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
        void __iomem *regs = hdmi_phy->regs;

        mtk_phy_set_bits(regs + HDMI_1_PLL_CFG_0, RG_HDMITXPLL_BP2);
        mtk_phy_set_bits(regs + HDMI_1_PLL_CFG_2, RG_HDMITXPLL_BC);
        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_2, RG_HDMITXPLL_IC, 0x1);
        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_2, RG_HDMITXPLL_BR, 0x2);
        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_2, RG_HDMITXPLL_IR, 0x2);
        mtk_phy_set_bits(regs + HDMI_1_PLL_CFG_2, RG_HDMITXPLL_BP);
        mtk_phy_clear_bits(regs + HDMI_1_PLL_CFG_0, RG_HDMITXPLL_IBAND_FIX_EN);
        mtk_phy_clear_bits(regs + HDMI_1_PLL_CFG_1, RG_HDMITXPLL_RESERVE_BIT14);
        mtk_phy_clear_bits(regs + HDMI_1_PLL_CFG_2, RG_HDMITXPLL_HIKVCO);
        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_0, RG_HDMITXPLL_HREN, 0x1);
        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_0, RG_HDMITXPLL_LVR_SEL, 0x1);
        mtk_phy_set_bits(regs + HDMI_1_PLL_CFG_1, RG_HDMITXPLL_RESERVE_BIT12_11);
        mtk_phy_set_bits(regs + HDMI_1_PLL_CFG_0, RG_HDMITXPLL_TCL_EN);
}

static int mtk_hdmi_pll_set_hw(struct clk_hw *hw, u8 prediv,
                               u8 fbkdiv_high,
                               u32 fbkdiv_low,
                               u8 fbkdiv_hs3, u8 posdiv1,
                               u8 posdiv2, u8 txprediv,
                               u8 txposdiv,
                               u8 digital_div)
{
        u8 txposdiv_value;
        u8 div3_ctrl_value;
        u8 posdiv_vallue;
        u8 div_ctrl_value;
        u8 reserve_3_2_value;
        u8 prediv_value;
        u8 reserve13_value;
        struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
        void __iomem *regs = hdmi_phy->regs;

        mtk_hdmi_pll_sel_src(hw);

        mtk_hdmi_pll_perf(hw);

        mtk_phy_update_field(regs + HDMI_1_CFG_10, RG_HDMITX21_BIAS_PE_BG_VREF_SEL, 0x2);
        mtk_phy_clear_bits(regs + HDMI_1_CFG_10, RG_HDMITX21_VREF_SEL);
        mtk_phy_update_field(regs + HDMI_1_CFG_9, RG_HDMITX21_SLDO_VREF_SEL, 0x2);
        mtk_phy_clear_bits(regs + HDMI_1_CFG_10, RG_HDMITX21_BIAS_PE_VREF_SELB);
        mtk_phy_set_bits(regs + HDMI_1_CFG_3, RG_HDMITX21_SLDOLPF_EN);
        mtk_phy_update_field(regs + HDMI_1_CFG_6, RG_HDMITX21_INTR_CAL, 0x11);
        mtk_phy_set_bits(regs + HDMI_1_PLL_CFG_2, RG_HDMITXPLL_PWD);

        /* TXPOSDIV */
        txposdiv_value = ilog2(txposdiv);

        mtk_phy_update_field(regs + HDMI_1_CFG_6, RG_HDMITX21_TX_POSDIV, txposdiv_value);
        mtk_phy_set_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_TX_POSDIV_EN);
        mtk_phy_clear_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_FRL_EN);

        /* TXPREDIV */
        switch (txprediv) {
        case 2:
                div3_ctrl_value = 0x0;
                posdiv_vallue = 0x0;
                break;
        case 4:
                div3_ctrl_value = 0x0;
                posdiv_vallue = 0x1;
                break;
        case 6:
                div3_ctrl_value = 0x1;
                posdiv_vallue = 0x0;
                break;
        case 12:
                div3_ctrl_value = 0x1;
                posdiv_vallue = 0x1;
                break;
        default:
                return -EINVAL;
        }

        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_4, RG_HDMITXPLL_POSDIV_DIV3_CTRL, div3_ctrl_value);
        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_4, RG_HDMITXPLL_POSDIV, posdiv_vallue);

        /* POSDIV1 */
        switch (posdiv1) {
        case 5:
                div_ctrl_value = 0x0;
                break;
        case 10:
                div_ctrl_value = 0x1;
                break;
        case 12:
                div_ctrl_value = 0x2;
                break;
        case 15:
                div_ctrl_value = 0x3;
                break;
        default:
                return -EINVAL;
        }

        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_4, RG_HDMITXPLL_DIV_CTRL, div_ctrl_value);

        /* DE add new setting */
        mtk_phy_clear_bits(regs + HDMI_1_PLL_CFG_1, RG_HDMITXPLL_RESERVE_BIT14);

        /* POSDIV2 */
        switch (posdiv2) {
        case 1:
                reserve_3_2_value = 0x0;
                break;
        case 2:
                reserve_3_2_value = 0x1;
                break;
        case 4:
                reserve_3_2_value = 0x2;
                break;
        case 6:
                reserve_3_2_value = 0x3;
                break;
        default:
                return -EINVAL;
        }

        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_1, RG_HDMITXPLL_RESERVE_BIT3_2, reserve_3_2_value);

        /* DE add new setting */
        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_1, RG_HDMITXPLL_RESERVE_BIT1_0, 0x2);

        /* PREDIV */
        prediv_value = ilog2(prediv);

        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_4, RG_HDMITXPLL_PREDIV, prediv_value);

        /* FBKDIV_HS3 */
        reserve13_value = ilog2(fbkdiv_hs3);

        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_1, RG_HDMITXPLL_RESERVE_BIT13, reserve13_value);

        /* FBDIV */
        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_4, RG_HDMITXPLL_FBKDIV_HIGH, fbkdiv_high);
        mtk_phy_update_field(regs + HDMI_1_PLL_CFG_3, RG_HDMITXPLL_FBKDIV_LOW, fbkdiv_low);

        /* Digital DIVIDER */
        mtk_phy_clear_bits(regs + HDMI_CTL_3, REG_PIXEL_CLOCK_SEL);

        if (digital_div == 1) {
                mtk_phy_clear_bits(regs + HDMI_CTL_3, REG_HDMITX_PIXEL_CLOCK);
        } else {
                mtk_phy_set_bits(regs + HDMI_CTL_3, REG_HDMITX_PIXEL_CLOCK);
                mtk_phy_update_field(regs + HDMI_CTL_3, REG_HDMITXPLL_DIV, digital_div - 1);
        }

        return 0;
}

static int mtk_hdmi_pll_calc(struct mtk_hdmi_phy *hdmi_phy, struct clk_hw *hw,
                             unsigned long rate, unsigned long parent_rate)
{
        u8 digital_div, txprediv, txposdiv, fbkdiv_high, posdiv1, posdiv2;
        u64 tmds_clk, pixel_clk, da_hdmitx21_ref_ck, ns_hdmipll_ck, pcw;
        u8 txpredivs[4] = { 2, 4, 6, 12 };
        u32 fbkdiv_low;
        int i;

        pixel_clk = rate;
        tmds_clk = pixel_clk;

        if (tmds_clk < 25 * MEGA || tmds_clk > 594 * MEGA)
                return -EINVAL;

        if (tmds_clk >= 340 * MEGA)
                hdmi_phy->tmds_over_340M = true;
        else
                hdmi_phy->tmds_over_340M = false;

        /* in Hz */
        da_hdmitx21_ref_ck = 26 * MEGA;

        /*  TXPOSDIV stage treatment:
         *      0M  <  TMDS clk  < 54M            /8
         *      54M <= TMDS clk  < 148.35M    /4
         *      148.35M <=TMDS clk < 296.7M   /2
         *      296.7 <=TMDS clk <= 594M          /1
         */
        if (tmds_clk < 54 * MEGA)
                txposdiv = 8;
        else if (tmds_clk >= 54 * MEGA && (tmds_clk * 100) < 14835 * MEGA)
                txposdiv = 4;
        else if ((tmds_clk * 100) >= 14835 * MEGA && (tmds_clk * 10) < 2967 * MEGA)
                txposdiv = 2;
        else if ((tmds_clk * 10) >= 2967 * MEGA && tmds_clk <= 594 * MEGA)
                txposdiv = 1;
        else
                return -EINVAL;

        /* calculate txprediv: can be 2, 4, 6, 12
         * ICO clk = 5*TMDS_CLK*TXPOSDIV*TXPREDIV
         * ICO clk constraint: 5G =< ICO clk <= 12G
         */
        for (i = 0; i < ARRAY_SIZE(txpredivs); i++) {
                ns_hdmipll_ck = 5 * tmds_clk * txposdiv * txpredivs[i];
                if (ns_hdmipll_ck >= 5 * GIGA &&
                    ns_hdmipll_ck <= 12 * GIGA)
                        break;
        }
        if (i == (ARRAY_SIZE(txpredivs) - 1) &&
            (ns_hdmipll_ck < 5 * GIGA || ns_hdmipll_ck > 12 * GIGA)) {
                return -EINVAL;
        }
        if (i == ARRAY_SIZE(txpredivs))
                return -EINVAL;

        txprediv = txpredivs[i];

        /* PCW calculation: FBKDIV
         * formula: pcw=(frequency_out*2^pcw_bit) / frequency_in / FBKDIV_HS3;
         * RG_HDMITXPLL_FBKDIV[32:0]:
         * [32,24] 9bit integer, [23,0]:24bit fraction
         */
        pcw = div_u64(((u64)ns_hdmipll_ck) << PCW_DECIMAL_WIDTH,
                      da_hdmitx21_ref_ck * PLL_FBKDIV_HS3);

        if (pcw > GENMASK_ULL(32, 0))
                return -EINVAL;

        fbkdiv_high = FIELD_GET(GENMASK_ULL(63, 32), pcw);
        fbkdiv_low = FIELD_GET(GENMASK(31, 0), pcw);

        /* posdiv1:
         * posdiv1 stage treatment according to color_depth:
         * 24bit -> posdiv1 /10, 30bit -> posdiv1 /12.5,
         * 36bit -> posdiv1 /15, 48bit -> posdiv1 /10
         */
        posdiv1 = 10;
        posdiv2 = 1;

        /* Digital clk divider, max /32 */
        digital_div = div_u64(ns_hdmipll_ck, posdiv1 * posdiv2 * pixel_clk);
        if (!(digital_div <= 32 && digital_div >= 1))
                return -EINVAL;

        return mtk_hdmi_pll_set_hw(hw, PLL_PREDIV, fbkdiv_high, fbkdiv_low,
                            PLL_FBKDIV_HS3, posdiv1, posdiv2, txprediv,
                            txposdiv, digital_div);
}

static int mtk_hdmi_pll_drv_setting(struct clk_hw *hw)
{
        struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
        void __iomem *regs = hdmi_phy->regs;
        u8 data_channel_bias, clk_channel_bias;
        u8 impedance, impedance_en;
        u32 tmds_clk;
        u32 pixel_clk = hdmi_phy->pll_rate;

        tmds_clk = pixel_clk;

        /* bias & impedance setting:
         * 3G < data rate <= 6G: enable impedance 100ohm,
         *      data channel bias 24mA, clock channel bias 20mA
         * pixel clk >= HD,  74.175MHZ <= pixel clk <= 300MHZ:
         *      enalbe impedance 100ohm
         *      data channel 20mA, clock channel 16mA
         * 27M =< pixel clk < 74.175: disable impedance
         *      data channel & clock channel bias 10mA
         */

        /* 3G < data rate <= 6G, 300M < tmds rate <= 594M */
        if (tmds_clk > 300 * MEGA && tmds_clk <= 594 * MEGA) {
                data_channel_bias = 0x3c; /* 24mA */
                clk_channel_bias = 0x34; /* 20mA */
                impedance_en = 0xf;
                impedance = 0x36; /* 100ohm */
        } else if (((u64)pixel_clk * 1000) >= 74175 * MEGA && pixel_clk <= 300 * MEGA) {
                data_channel_bias = 0x34; /* 20mA */
                clk_channel_bias = 0x2c; /* 16mA */
                impedance_en = 0xf;
                impedance = 0x36; /* 100ohm */
        } else if (pixel_clk >= 27 * MEGA && ((u64)pixel_clk * 1000) < 74175 * MEGA) {
                data_channel_bias = 0x14; /* 10mA */
                clk_channel_bias = 0x14; /* 10mA */
                impedance_en = 0x0;
                impedance = 0x0;
        } else {
                return -EINVAL;
        }

        /* bias */
        mtk_phy_update_field(regs + HDMI_1_CFG_1, RG_HDMITX21_DRV_IBIAS_D0, data_channel_bias);
        mtk_phy_update_field(regs + HDMI_1_CFG_1, RG_HDMITX21_DRV_IBIAS_D1, data_channel_bias);
        mtk_phy_update_field(regs + HDMI_1_CFG_1, RG_HDMITX21_DRV_IBIAS_D2, data_channel_bias);
        mtk_phy_update_field(regs + HDMI_1_CFG_0, RG_HDMITX21_DRV_IBIAS_CLK, clk_channel_bias);

        /* impedance */
        mtk_phy_update_field(regs + HDMI_1_CFG_0, RG_HDMITX21_DRV_IMP_EN, impedance_en);
        mtk_phy_update_field(regs + HDMI_1_CFG_2, RG_HDMITX21_DRV_IMP_D0_EN1, impedance);
        mtk_phy_update_field(regs + HDMI_1_CFG_2, RG_HDMITX21_DRV_IMP_D1_EN1, impedance);
        mtk_phy_update_field(regs + HDMI_1_CFG_2, RG_HDMITX21_DRV_IMP_D2_EN1, impedance);
        mtk_phy_update_field(regs + HDMI_1_CFG_2, RG_HDMITX21_DRV_IMP_CLK_EN1, impedance);

        return 0;
}

static int mtk_hdmi_pll_prepare(struct clk_hw *hw)
{
        struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
        void __iomem *regs = hdmi_phy->regs;

        mtk_phy_set_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_TX_POSDIV_EN);

        mtk_phy_set_bits(regs + HDMI_1_CFG_0, RG_HDMITX21_SER_EN);
        mtk_phy_set_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_D0_DRV_OP_EN);
        mtk_phy_set_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_D1_DRV_OP_EN);
        mtk_phy_set_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_D2_DRV_OP_EN);
        mtk_phy_set_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_CK_DRV_OP_EN);

        mtk_phy_clear_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_FRL_D0_EN);
        mtk_phy_clear_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_FRL_D1_EN);
        mtk_phy_clear_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_FRL_D2_EN);
        mtk_phy_clear_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_FRL_CK_EN);

        mtk_hdmi_pll_drv_setting(hw);

        mtk_phy_clear_bits(regs + HDMI_1_CFG_10, RG_HDMITX21_BG_PWD);
        mtk_phy_set_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_BIAS_EN);
        mtk_phy_set_bits(regs + HDMI_1_CFG_3, RG_HDMITX21_CKLDO_EN);
        mtk_phy_set_bits(regs + HDMI_1_CFG_3, RG_HDMITX21_SLDO_EN);

        mtk_phy_set_bits(regs + HDMI_1_PLL_CFG_4, DA_HDMITXPLL_PWR_ON);
        usleep_range(5, 10);
        mtk_phy_clear_bits(regs + HDMI_1_PLL_CFG_4, DA_HDMITXPLL_ISO_EN);
        usleep_range(5, 10);
        mtk_phy_clear_bits(regs + HDMI_1_PLL_CFG_2, RG_HDMITXPLL_PWD);
        usleep_range(30, 50);
        return 0;
}

static void mtk_hdmi_pll_unprepare(struct clk_hw *hw)
{
        struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
        void __iomem *regs = hdmi_phy->regs;

        mtk_phy_set_bits(regs + HDMI_1_CFG_10, RG_HDMITX21_BG_PWD);
        mtk_phy_clear_bits(regs + HDMI_1_CFG_6, RG_HDMITX21_BIAS_EN);
        mtk_phy_clear_bits(regs + HDMI_1_CFG_3, RG_HDMITX21_CKLDO_EN);
        mtk_phy_clear_bits(regs + HDMI_1_CFG_3, RG_HDMITX21_SLDO_EN);

        mtk_phy_set_bits(regs + HDMI_1_PLL_CFG_2, RG_HDMITXPLL_PWD);
        usleep_range(10, 20);
        mtk_phy_set_bits(regs + HDMI_1_PLL_CFG_4, DA_HDMITXPLL_ISO_EN);
        usleep_range(10, 20);
        mtk_phy_clear_bits(regs + HDMI_1_PLL_CFG_4, DA_HDMITXPLL_PWR_ON);
}

static int mtk_hdmi_pll_set_rate(struct clk_hw *hw, unsigned long rate,
                                 unsigned long parent_rate)
{
        struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);

        dev_dbg(hdmi_phy->dev, "%s: %lu Hz, parent: %lu Hz\n", __func__, rate,
                parent_rate);

        return mtk_hdmi_pll_calc(hdmi_phy, hw, rate, parent_rate);
}

static int mtk_hdmi_pll_determine_rate(struct clk_hw *hw,
                                       struct clk_rate_request *req)
{
        struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);

        hdmi_phy->pll_rate = req->rate;
        return 0;
}

static unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw,
                                              unsigned long parent_rate)
{
        struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);

        return hdmi_phy->pll_rate;
}

static const struct clk_ops mtk_hdmi_pll_ops = {
        .prepare = mtk_hdmi_pll_prepare,
        .unprepare = mtk_hdmi_pll_unprepare,
        .set_rate = mtk_hdmi_pll_set_rate,
        .determine_rate = mtk_hdmi_pll_determine_rate,
        .recalc_rate = mtk_hdmi_pll_recalc_rate,
};

static void vtx_signal_en(struct mtk_hdmi_phy *hdmi_phy, bool on)
{
        void __iomem *regs = hdmi_phy->regs;

        if (on)
                mtk_phy_set_bits(regs + HDMI_1_CFG_0, RG_HDMITX21_DRV_EN);
        else
                mtk_phy_clear_bits(regs + HDMI_1_CFG_0, RG_HDMITX21_DRV_EN);
}

static void mtk_hdmi_phy_enable_tmds(struct mtk_hdmi_phy *hdmi_phy)
{
        vtx_signal_en(hdmi_phy, true);
        usleep_range(100, 150);
}

static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy)
{
        vtx_signal_en(hdmi_phy, false);
}

static int mtk_hdmi_phy_configure(struct phy *phy, union phy_configure_opts *opts)
{
        struct phy_configure_opts_dp *dp_opts = &opts->dp;
        struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);
        int ret;

        ret = clk_set_rate(hdmi_phy->pll, dp_opts->link_rate);

        if (ret)
                return ret;

        mtk_phy_tmds_clk_ratio(hdmi_phy, hdmi_phy->tmds_over_340M);

        return ret;
}

static int mtk_hdmi_phy_pwr5v_enable(struct regulator_dev *rdev)
{
        struct mtk_hdmi_phy *hdmi_phy = rdev_get_drvdata(rdev);

        mtk_phy_set_bits(hdmi_phy->regs + HDMI_CTL_1, RG_HDMITX_PWR5V_O);

        return 0;
}

static int mtk_hdmi_phy_pwr5v_disable(struct regulator_dev *rdev)
{
        struct mtk_hdmi_phy *hdmi_phy = rdev_get_drvdata(rdev);

        mtk_phy_clear_bits(hdmi_phy->regs + HDMI_CTL_1, RG_HDMITX_PWR5V_O);

        return 0;
}

static int mtk_hdmi_phy_pwr5v_is_enabled(struct regulator_dev *rdev)
{
        struct mtk_hdmi_phy *hdmi_phy = rdev_get_drvdata(rdev);

        return !!(readl(hdmi_phy->regs + HDMI_CTL_1) & RG_HDMITX_PWR5V_O);
}

static const struct regulator_ops mtk_hdmi_pwr5v_regulator_ops = {
        .enable = mtk_hdmi_phy_pwr5v_enable,
        .disable = mtk_hdmi_phy_pwr5v_disable,
        .is_enabled = mtk_hdmi_phy_pwr5v_is_enabled
};

static const struct regulator_desc mtk_hdmi_phy_pwr5v_desc = {
        .name = "hdmi-pwr5v",
        .id = -1,
        .n_voltages = 1,
        .fixed_uV = 5000000,
        .ops = &mtk_hdmi_pwr5v_regulator_ops,
        .type = REGULATOR_VOLTAGE,
        .owner = THIS_MODULE,
};

struct mtk_hdmi_phy_conf mtk_hdmi_phy_8195_conf = {
        .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
        .hdmi_phy_regulator_desc = &mtk_hdmi_phy_pwr5v_desc,
        .hdmi_phy_clk_ops = &mtk_hdmi_pll_ops,
        .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds,
        .hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds,
        .hdmi_phy_configure = mtk_hdmi_phy_configure,
};

MODULE_AUTHOR("Can Zeng <can.zeng@mediatek.com>");
MODULE_DESCRIPTION("MediaTek MT8195 HDMI PHY Driver");
MODULE_LICENSE("GPL v2");