Re: [PATCH 1/3] phy: mediatek: phy-mtk-mipi-dsi: Switch to regmap for mmio access

From: Chunfeng Yun
Date: Thu Jan 06 2022 - 03:24:52 EST

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On Mon, 2022-01-03 at 15:53 +0100, AngeloGioacchino Del Regno wrote:
> Switch to using the generic regmap API instead of calls to
> readl/writel
> for MMIO register access, removing custom crafted
> update/set/clear_bits
> functions and also allowing us to reduce code size.
It seems make the driver more complex and may consume more cpu time. we
prefer to use readl/writel here.

>
> Signed-off-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@xxxxxxxxxxxxx>
> ---
> .../phy/mediatek/phy-mtk-mipi-dsi-mt8173.c | 45 ++++++-------
> .../phy/mediatek/phy-mtk-mipi-dsi-mt8183.c | 63 ++++++++++-------
> --
> drivers/phy/mediatek/phy-mtk-mipi-dsi.c | 43 +++++--------
> drivers/phy/mediatek/phy-mtk-mipi-dsi.h | 6 +-
> 4 files changed, 72 insertions(+), 85 deletions(-)
>
> diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c
> b/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c
> index 7a847954594f..95a0d9a3cca7 100644
> --- a/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c
> +++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c
> @@ -4,6 +4,7 @@
> * Author: jitao.shi <jitao.shi@xxxxxxxxxxxx>
> */
>
> +#include <linux/regmap.h>
> #include "phy-mtk-mipi-dsi.h"
>
> #define MIPITX_DSI_CON 0x00
> @@ -145,7 +146,7 @@ static int mtk_mipi_tx_pll_prepare(struct clk_hw
> *hw)
> return -EINVAL;
> }
>
> - mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_BG_CON,
> + regmap_update_bits(mipi_tx->regmap, MIPITX_DSI_BG_CON,
> RG_DSI_VOUT_MSK |
> RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN,
> (4 << 20) | (4 << 17) | (4 << 14) |
> @@ -154,22 +155,22 @@ static int mtk_mipi_tx_pll_prepare(struct
> clk_hw *hw)
>
> usleep_range(30, 100);
>
> - mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_TOP_CON,
> + regmap_update_bits(mipi_tx->regmap, MIPITX_DSI_TOP_CON,
> RG_DSI_LNT_IMP_CAL_CODE |
> RG_DSI_LNT_HS_BIAS_EN,
> (8 << 4) | RG_DSI_LNT_HS_BIAS_EN);
>
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_CON,
> + regmap_set_bits(mipi_tx->regmap, MIPITX_DSI_CON,
> RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN);
>
> - mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_PWR,
> + regmap_update_bits(mipi_tx->regmap, MIPITX_DSI_PLL_PWR,
> RG_DSI_MPPLL_SDM_PWR_ON |
> RG_DSI_MPPLL_SDM_ISO_EN,
> RG_DSI_MPPLL_SDM_PWR_ON);
>
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0,
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_DSI_PLL_CON0,
> RG_DSI_MPPLL_PLL_EN);
>
> - mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_CON0,
> + regmap_update_bits(mipi_tx->regmap, MIPITX_DSI_PLL_CON0,
> RG_DSI_MPPLL_TXDIV0 |
> RG_DSI_MPPLL_TXDIV1 |
> RG_DSI_MPPLL_PREDIV,
> (txdiv0 << 3) | (txdiv1 << 5));
> @@ -184,19 +185,19 @@ static int mtk_mipi_tx_pll_prepare(struct
> clk_hw *hw)
> */
> pcw = div_u64(((u64)mipi_tx->data_rate * 2 * txdiv) << 24,
> 26000000);
> - writel(pcw, mipi_tx->regs + MIPITX_DSI_PLL_CON2);
> + regmap_write(mipi_tx->regmap, MIPITX_DSI_PLL_CON2, pcw);
>
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_PLL_CON1,
> + regmap_set_bits(mipi_tx->regmap, MIPITX_DSI_PLL_CON1,
> RG_DSI_MPPLL_SDM_FRA_EN);
>
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_PLL_CON0,
> RG_DSI_MPPLL_PLL_EN);
> + regmap_set_bits(mipi_tx->regmap, MIPITX_DSI_PLL_CON0,
> RG_DSI_MPPLL_PLL_EN);
>
> usleep_range(20, 100);
>
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON1,
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_DSI_PLL_CON1,
> RG_DSI_MPPLL_SDM_SSC_EN);
>
> - mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_TOP,
> + regmap_update_bits(mipi_tx->regmap, MIPITX_DSI_PLL_TOP,
> RG_DSI_MPPLL_PRESERVE,
> mipi_tx->driver_data->mppll_preserve);
>
> @@ -209,27 +210,27 @@ static void mtk_mipi_tx_pll_unprepare(struct
> clk_hw *hw)
>
> dev_dbg(mipi_tx->dev, "unprepare\n");
>
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0,
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_DSI_PLL_CON0,
> RG_DSI_MPPLL_PLL_EN);
>
> - mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_TOP,
> + regmap_update_bits(mipi_tx->regmap, MIPITX_DSI_PLL_TOP,
> RG_DSI_MPPLL_PRESERVE, 0);
>
> - mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_PWR,
> + regmap_update_bits(mipi_tx->regmap, MIPITX_DSI_PLL_PWR,
> RG_DSI_MPPLL_SDM_ISO_EN |
> RG_DSI_MPPLL_SDM_PWR_ON,
> RG_DSI_MPPLL_SDM_ISO_EN);
>
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_TOP_CON,
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_DSI_TOP_CON,
> RG_DSI_LNT_HS_BIAS_EN);
>
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_CON,
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_DSI_CON,
> RG_DSI_CKG_LDOOUT_EN |
> RG_DSI_LDOCORE_EN);
>
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_BG_CON,
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_DSI_BG_CON,
> RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN);
>
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0,
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_DSI_PLL_CON0,
> RG_DSI_MPPLL_DIV_MSK);
> }
>
> @@ -254,9 +255,9 @@ static void mtk_mipi_tx_power_on_signal(struct
> phy *phy)
>
> for (reg = MIPITX_DSI_CLOCK_LANE;
> reg <= MIPITX_DSI_DATA_LANE3; reg += 4)
> - mtk_mipi_tx_set_bits(mipi_tx, reg,
> RG_DSI_LNTx_LDOOUT_EN);
> + regmap_set_bits(mipi_tx->regmap, reg,
> RG_DSI_LNTx_LDOOUT_EN);
>
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_TOP_CON,
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_DSI_TOP_CON,
> RG_DSI_PAD_TIE_LOW_EN);
> }
>
> @@ -265,12 +266,12 @@ static void mtk_mipi_tx_power_off_signal(struct
> phy *phy)
> struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy);
> u32 reg;
>
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_TOP_CON,
> + regmap_set_bits(mipi_tx->regmap, MIPITX_DSI_TOP_CON,
> RG_DSI_PAD_TIE_LOW_EN);
>
> for (reg = MIPITX_DSI_CLOCK_LANE;
> reg <= MIPITX_DSI_DATA_LANE3; reg += 4)
> - mtk_mipi_tx_clear_bits(mipi_tx, reg,
> RG_DSI_LNTx_LDOOUT_EN);
> + regmap_clear_bits(mipi_tx->regmap, reg,
> RG_DSI_LNTx_LDOOUT_EN);
> }
>
> const struct mtk_mipitx_data mt2701_mipitx_data = {
> diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.c
> b/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.c
> index 99108426d57c..01b59527669e 100644
> --- a/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.c
> +++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8183.c
> @@ -4,6 +4,7 @@
> * Author: jitao.shi <jitao.shi@xxxxxxxxxxxx>
> */
>
> +#include <linux/regmap.h>
> #include "phy-mtk-mipi-dsi.h"
>
> #define MIPITX_LANE_CON 0x000c
> @@ -70,17 +71,17 @@ static int mtk_mipi_tx_pll_enable(struct clk_hw
> *hw)
> return -EINVAL;
> }
>
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_PLL_CON4,
> RG_DSI_PLL_IBIAS);
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_PLL_CON4,
> RG_DSI_PLL_IBIAS);
>
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_PLL_PWR,
> AD_DSI_PLL_SDM_PWR_ON);
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_PLL_CON1,
> RG_DSI_PLL_EN);
> + regmap_set_bits(mipi_tx->regmap, MIPITX_PLL_PWR,
> AD_DSI_PLL_SDM_PWR_ON);
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_PLL_CON1,
> RG_DSI_PLL_EN);
> udelay(1);
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_PLL_PWR,
> AD_DSI_PLL_SDM_ISO_EN);
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_PLL_PWR,
> AD_DSI_PLL_SDM_ISO_EN);
> pcw = div_u64(((u64)mipi_tx->data_rate * txdiv) << 24,
> 26000000);
> - writel(pcw, mipi_tx->regs + MIPITX_PLL_CON0);
> - mtk_mipi_tx_update_bits(mipi_tx, MIPITX_PLL_CON1,
> RG_DSI_PLL_POSDIV,
> + regmap_write(mipi_tx->regmap, MIPITX_PLL_CON0, pcw);
> + regmap_update_bits(mipi_tx->regmap, MIPITX_PLL_CON1,
> RG_DSI_PLL_POSDIV,
> txdiv0 << 8);
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_PLL_CON1, RG_DSI_PLL_EN);
> + regmap_set_bits(mipi_tx->regmap, MIPITX_PLL_CON1,
> RG_DSI_PLL_EN);
>
> return 0;
> }
> @@ -89,10 +90,10 @@ static void mtk_mipi_tx_pll_disable(struct clk_hw
> *hw)
> {
> struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw);
>
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_PLL_CON1,
> RG_DSI_PLL_EN);
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_PLL_CON1,
> RG_DSI_PLL_EN);
>
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_PLL_PWR,
> AD_DSI_PLL_SDM_ISO_EN);
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_PLL_PWR,
> AD_DSI_PLL_SDM_PWR_ON);
> + regmap_set_bits(mipi_tx->regmap, MIPITX_PLL_PWR,
> AD_DSI_PLL_SDM_ISO_EN);
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_PLL_PWR,
> AD_DSI_PLL_SDM_PWR_ON);
> }
>
> static long mtk_mipi_tx_pll_round_rate(struct clk_hw *hw, unsigned
> long rate,
> @@ -121,7 +122,7 @@ static void
> mtk_mipi_tx_config_calibration_data(struct mtk_mipi_tx *mipi_tx)
> mipi_tx->rt_code[i] |= 0x10 << 5;
>
> for (j = 0; j < 10; j++)
> - mtk_mipi_tx_update_bits(mipi_tx,
> + regmap_update_bits(mipi_tx->regmap,
> MIPITX_D2P_RTCODE * (i + 1) + j * 4,
> 1, mipi_tx->rt_code[i] >> j & 1);
> }
> @@ -132,26 +133,26 @@ static void mtk_mipi_tx_power_on_signal(struct
> phy *phy)
> struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy);
>
> /* BG_LPF_EN / BG_CORE_EN */
> - writel(RG_DSI_PAD_TIEL_SEL | RG_DSI_BG_CORE_EN,
> - mipi_tx->regs + MIPITX_LANE_CON);
> + regmap_write(mipi_tx->regmap, MIPITX_LANE_CON,
> + (RG_DSI_PAD_TIEL_SEL | RG_DSI_BG_CORE_EN));
> usleep_range(30, 100);
> - writel(RG_DSI_BG_CORE_EN | RG_DSI_BG_LPF_EN,
> - mipi_tx->regs + MIPITX_LANE_CON);
> + regmap_write(mipi_tx->regmap, MIPITX_LANE_CON,
> + (RG_DSI_BG_LPF_EN | RG_DSI_BG_CORE_EN));
>
> /* Switch OFF each Lane */
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_D0_SW_CTL_EN,
> DSI_SW_CTL_EN);
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_D1_SW_CTL_EN,
> DSI_SW_CTL_EN);
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_D2_SW_CTL_EN,
> DSI_SW_CTL_EN);
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_D3_SW_CTL_EN,
> DSI_SW_CTL_EN);
> - mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_CK_SW_CTL_EN,
> DSI_SW_CTL_EN);
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_D0_SW_CTL_EN,
> DSI_SW_CTL_EN);
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_D1_SW_CTL_EN,
> DSI_SW_CTL_EN);
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_D2_SW_CTL_EN,
> DSI_SW_CTL_EN);
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_D3_SW_CTL_EN,
> DSI_SW_CTL_EN);
> + regmap_clear_bits(mipi_tx->regmap, MIPITX_CK_SW_CTL_EN,
> DSI_SW_CTL_EN);
>
> - mtk_mipi_tx_update_bits(mipi_tx, MIPITX_VOLTAGE_SEL,
> + regmap_update_bits(mipi_tx->regmap, MIPITX_VOLTAGE_SEL,
> RG_DSI_HSTX_LDO_REF_SEL,
> (mipi_tx->mipitx_drive - 3000) / 200 <<
> 6);
>
> mtk_mipi_tx_config_calibration_data(mipi_tx);
>
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_CK_CKMODE_EN,
> DSI_CK_CKMODE_EN);
> + regmap_set_bits(mipi_tx->regmap, MIPITX_CK_CKMODE_EN,
> DSI_CK_CKMODE_EN);
> }
>
> static void mtk_mipi_tx_power_off_signal(struct phy *phy)
> @@ -159,15 +160,15 @@ static void mtk_mipi_tx_power_off_signal(struct
> phy *phy)
> struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy);
>
> /* Switch ON each Lane */
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_D0_SW_CTL_EN,
> DSI_SW_CTL_EN);
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_D1_SW_CTL_EN,
> DSI_SW_CTL_EN);
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_D2_SW_CTL_EN,
> DSI_SW_CTL_EN);
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_D3_SW_CTL_EN,
> DSI_SW_CTL_EN);
> - mtk_mipi_tx_set_bits(mipi_tx, MIPITX_CK_SW_CTL_EN,
> DSI_SW_CTL_EN);
> -
> - writel(RG_DSI_PAD_TIEL_SEL | RG_DSI_BG_CORE_EN,
> - mipi_tx->regs + MIPITX_LANE_CON);
> - writel(RG_DSI_PAD_TIEL_SEL, mipi_tx->regs + MIPITX_LANE_CON);
> + regmap_set_bits(mipi_tx->regmap, MIPITX_D0_SW_CTL_EN,
> DSI_SW_CTL_EN);
> + regmap_set_bits(mipi_tx->regmap, MIPITX_D1_SW_CTL_EN,
> DSI_SW_CTL_EN);
> + regmap_set_bits(mipi_tx->regmap, MIPITX_D2_SW_CTL_EN,
> DSI_SW_CTL_EN);
> + regmap_set_bits(mipi_tx->regmap, MIPITX_D3_SW_CTL_EN,
> DSI_SW_CTL_EN);
> + regmap_set_bits(mipi_tx->regmap, MIPITX_CK_SW_CTL_EN,
> DSI_SW_CTL_EN);
> +
> + regmap_write(mipi_tx->regmap, MIPITX_LANE_CON,
> + (RG_DSI_PAD_TIEL_SEL | RG_DSI_BG_CORE_EN));
> + regmap_write(mipi_tx->regmap, MIPITX_LANE_CON,
> RG_DSI_PAD_TIEL_SEL);
> }
>
> const struct mtk_mipitx_data mt8183_mipitx_data = {
> diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
> b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
> index 28ad9403c441..51b1b1d4ad38 100644
> --- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
> +++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c
> @@ -3,6 +3,7 @@
> * Copyright (c) 2015 MediaTek Inc.
> */
>
> +#include <linux/regmap.h>
> #include "phy-mtk-mipi-dsi.h"
>
> inline struct mtk_mipi_tx *mtk_mipi_tx_from_clk_hw(struct clk_hw
> *hw)
> @@ -10,30 +11,6 @@ inline struct mtk_mipi_tx
> *mtk_mipi_tx_from_clk_hw(struct clk_hw *hw)
> return container_of(hw, struct mtk_mipi_tx, pll_hw);
> }
>
> -void mtk_mipi_tx_clear_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,
> - u32 bits)
> -{
> - u32 temp = readl(mipi_tx->regs + offset);
> -
> - writel(temp & ~bits, mipi_tx->regs + offset);
> -}
> -
> -void mtk_mipi_tx_set_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,
> - u32 bits)
> -{
> - u32 temp = readl(mipi_tx->regs + offset);
> -
> - writel(temp | bits, mipi_tx->regs + offset);
> -}
> -
> -void mtk_mipi_tx_update_bits(struct mtk_mipi_tx *mipi_tx, u32
> offset,
> - u32 mask, u32 data)
> -{
> - u32 temp = readl(mipi_tx->regs + offset);
> -
> - writel((temp & ~mask) | (data & mask), mipi_tx->regs + offset);
> -}
> -
> int mtk_mipi_tx_pll_set_rate(struct clk_hw *hw, unsigned long rate,
> unsigned long parent_rate)
> {
> @@ -126,6 +103,13 @@ static void
> mtk_mipi_tx_get_calibration_datal(struct mtk_mipi_tx *mipi_tx)
> kfree(buf);
> }
>
> +static const struct regmap_config mtk_mipi_tx_regmap_config = {
> + .reg_bits = 32,
> + .reg_stride = 4,
> + .val_bits = 32,
> + .disable_locking = true,
> +};
> +
> static int mtk_mipi_tx_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> @@ -139,6 +123,7 @@ static int mtk_mipi_tx_probe(struct
> platform_device *pdev)
> };
> struct phy *phy;
> struct phy_provider *phy_provider;
> + void __iomem *regs;
> int ret;
>
> mipi_tx = devm_kzalloc(dev, sizeof(*mipi_tx), GFP_KERNEL);
> @@ -147,9 +132,13 @@ static int mtk_mipi_tx_probe(struct
> platform_device *pdev)
>
> mipi_tx->driver_data = of_device_get_match_data(dev);
>
> - mipi_tx->regs = devm_platform_ioremap_resource(pdev, 0);
> - if (IS_ERR(mipi_tx->regs))
> - return PTR_ERR(mipi_tx->regs);
> + regs = devm_platform_ioremap_resource(pdev, 0);
> + if (IS_ERR(regs))
> + return PTR_ERR(regs);
> +
> + mipi_tx->regmap = devm_regmap_init_mmio(dev, regs,
> &mtk_mipi_tx_regmap_config);
> + if (IS_ERR(mipi_tx->regmap))
> + return PTR_ERR(mipi_tx->regmap);
>
> ref_clk = devm_clk_get(dev, NULL);
> if (IS_ERR(ref_clk)) {
> diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.h
> b/drivers/phy/mediatek/phy-mtk-mipi-dsi.h
> index c76f07c3fdeb..8d32e9027a15 100644
> --- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.h
> +++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.h
> @@ -27,7 +27,7 @@ struct mtk_mipitx_data {
>
> struct mtk_mipi_tx {
> struct device *dev;
> - void __iomem *regs;
> + struct regmap *regmap;
> u32 data_rate;
> u32 mipitx_drive;
> u32 rt_code[5];
> @@ -37,10 +37,6 @@ struct mtk_mipi_tx {
> };
>
> struct mtk_mipi_tx *mtk_mipi_tx_from_clk_hw(struct clk_hw *hw);
> -void mtk_mipi_tx_clear_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,
> u32 bits);
> -void mtk_mipi_tx_set_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,
> u32 bits);
> -void mtk_mipi_tx_update_bits(struct mtk_mipi_tx *mipi_tx, u32
> offset, u32 mask,
> - u32 data);
> int mtk_mipi_tx_pll_set_rate(struct clk_hw *hw, unsigned long rate,
> unsigned long parent_rate);
> unsigned long mtk_mipi_tx_pll_recalc_rate(struct clk_hw *hw,

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