Commit 78e01a8d authored by Jitao Shi's avatar Jitao Shi Committed by CK Hu
Browse files

drm/mediatek: separate mipi_tx to different file 



Different IC has different mipi_tx setting of dsi.
This patch separates the mipi_tx hardware relate part for mt8173.

Signed-off-by: default avatarJitao Shi <jitao.shi@mediatek.com>
Signed-off-by: default avatarCK Hu <ck.hu@mediatek.com>
parent f9201325

drivers/gpu/drm/mediatek/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ mediatek-drm-y := mtk_disp_color.o \ 
		  mtk_drm_plane.o \

		  mtk_dsi.o \

		  mtk_mipi_tx.o \

		  mtk_mt8173_mipi_tx.o \

		  mtk_dpi.o



obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o

drivers/gpu/drm/mediatek/mtk_mipi_tx.c

+21 −315
Original line number Diff line number Diff line
@@ -3,141 +3,14 @@ 
 * Copyright (c) 2015 MediaTek Inc.

 */



#include <linux/clk.h>

#include <linux/clk-provider.h>

#include <linux/delay.h>

#include <linux/io.h>

#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>

#include <linux/phy/phy.h>



#define MIPITX_DSI_CON		0x00

#define RG_DSI_LDOCORE_EN		BIT(0)

#define RG_DSI_CKG_LDOOUT_EN		BIT(1)

#define RG_DSI_BCLK_SEL			(3 << 2)

#define RG_DSI_LD_IDX_SEL		(7 << 4)

#define RG_DSI_PHYCLK_SEL		(2 << 8)

#define RG_DSI_DSICLK_FREQ_SEL		BIT(10)

#define RG_DSI_LPTX_CLMP_EN		BIT(11)



#define MIPITX_DSI_CLOCK_LANE	0x04

#define MIPITX_DSI_DATA_LANE0	0x08

#define MIPITX_DSI_DATA_LANE1	0x0c

#define MIPITX_DSI_DATA_LANE2	0x10

#define MIPITX_DSI_DATA_LANE3	0x14

#define RG_DSI_LNTx_LDOOUT_EN		BIT(0)

#define RG_DSI_LNTx_CKLANE_EN		BIT(1)

#define RG_DSI_LNTx_LPTX_IPLUS1		BIT(2)

#define RG_DSI_LNTx_LPTX_IPLUS2		BIT(3)

#define RG_DSI_LNTx_LPTX_IMINUS		BIT(4)

#define RG_DSI_LNTx_LPCD_IPLUS		BIT(5)

#define RG_DSI_LNTx_LPCD_IMINUS		BIT(6)

#define RG_DSI_LNTx_RT_CODE		(0xf << 8)



#define MIPITX_DSI_TOP_CON	0x40

#define RG_DSI_LNT_INTR_EN		BIT(0)

#define RG_DSI_LNT_HS_BIAS_EN		BIT(1)

#define RG_DSI_LNT_IMP_CAL_EN		BIT(2)

#define RG_DSI_LNT_TESTMODE_EN		BIT(3)

#define RG_DSI_LNT_IMP_CAL_CODE		(0xf << 4)

#define RG_DSI_LNT_AIO_SEL		(7 << 8)

#define RG_DSI_PAD_TIE_LOW_EN		BIT(11)

#define RG_DSI_DEBUG_INPUT_EN		BIT(12)

#define RG_DSI_PRESERVE			(7 << 13)



#define MIPITX_DSI_BG_CON	0x44

#define RG_DSI_BG_CORE_EN		BIT(0)

#define RG_DSI_BG_CKEN			BIT(1)

#define RG_DSI_BG_DIV			(0x3 << 2)

#define RG_DSI_BG_FAST_CHARGE		BIT(4)

#define RG_DSI_VOUT_MSK			(0x3ffff << 5)

#define RG_DSI_V12_SEL			(7 << 5)

#define RG_DSI_V10_SEL			(7 << 8)

#define RG_DSI_V072_SEL			(7 << 11)

#define RG_DSI_V04_SEL			(7 << 14)

#define RG_DSI_V032_SEL			(7 << 17)

#define RG_DSI_V02_SEL			(7 << 20)

#define RG_DSI_BG_R1_TRIM		(0xf << 24)

#define RG_DSI_BG_R2_TRIM		(0xf << 28)



#define MIPITX_DSI_PLL_CON0	0x50

#define RG_DSI_MPPLL_PLL_EN		BIT(0)

#define RG_DSI_MPPLL_DIV_MSK		(0x1ff << 1)

#define RG_DSI_MPPLL_PREDIV		(3 << 1)

#define RG_DSI_MPPLL_TXDIV0		(3 << 3)

#define RG_DSI_MPPLL_TXDIV1		(3 << 5)

#define RG_DSI_MPPLL_POSDIV		(7 << 7)

#define RG_DSI_MPPLL_MONVC_EN		BIT(10)

#define RG_DSI_MPPLL_MONREF_EN		BIT(11)

#define RG_DSI_MPPLL_VOD_EN		BIT(12)



#define MIPITX_DSI_PLL_CON1	0x54

#define RG_DSI_MPPLL_SDM_FRA_EN		BIT(0)

#define RG_DSI_MPPLL_SDM_SSC_PH_INIT	BIT(1)

#define RG_DSI_MPPLL_SDM_SSC_EN		BIT(2)

#define RG_DSI_MPPLL_SDM_SSC_PRD	(0xffff << 16)



#define MIPITX_DSI_PLL_CON2	0x58



#define MIPITX_DSI_PLL_TOP	0x64

#define RG_DSI_MPPLL_PRESERVE		(0xff << 8)



#define MIPITX_DSI_PLL_PWR	0x68

#define RG_DSI_MPPLL_SDM_PWR_ON		BIT(0)

#define RG_DSI_MPPLL_SDM_ISO_EN		BIT(1)

#define RG_DSI_MPPLL_SDM_PWR_ACK	BIT(8)



#define MIPITX_DSI_SW_CTRL	0x80

#define SW_CTRL_EN			BIT(0)



#define MIPITX_DSI_SW_CTRL_CON0	0x84

#define SW_LNTC_LPTX_PRE_OE		BIT(0)

#define SW_LNTC_LPTX_OE			BIT(1)

#define SW_LNTC_LPTX_P			BIT(2)

#define SW_LNTC_LPTX_N			BIT(3)

#define SW_LNTC_HSTX_PRE_OE		BIT(4)

#define SW_LNTC_HSTX_OE			BIT(5)

#define SW_LNTC_HSTX_ZEROCLK		BIT(6)

#define SW_LNT0_LPTX_PRE_OE		BIT(7)

#define SW_LNT0_LPTX_OE			BIT(8)

#define SW_LNT0_LPTX_P			BIT(9)

#define SW_LNT0_LPTX_N			BIT(10)

#define SW_LNT0_HSTX_PRE_OE		BIT(11)

#define SW_LNT0_HSTX_OE			BIT(12)

#define SW_LNT0_LPRX_EN			BIT(13)

#define SW_LNT1_LPTX_PRE_OE		BIT(14)

#define SW_LNT1_LPTX_OE			BIT(15)

#define SW_LNT1_LPTX_P			BIT(16)

#define SW_LNT1_LPTX_N			BIT(17)

#define SW_LNT1_HSTX_PRE_OE		BIT(18)

#define SW_LNT1_HSTX_OE			BIT(19)

#define SW_LNT2_LPTX_PRE_OE		BIT(20)

#define SW_LNT2_LPTX_OE			BIT(21)

#define SW_LNT2_LPTX_P			BIT(22)

#define SW_LNT2_LPTX_N			BIT(23)

#define SW_LNT2_HSTX_PRE_OE		BIT(24)

#define SW_LNT2_HSTX_OE			BIT(25)



struct mtk_mipitx_data {

	const u32 mppll_preserve;

};



struct mtk_mipi_tx {

	struct device *dev;

	void __iomem *regs;

	u32 data_rate;

	const struct mtk_mipitx_data *driver_data;

	struct clk_hw pll_hw;

	struct clk *pll;

};

#include "mtk_mipi_tx.h"



static inline struct mtk_mipi_tx *mtk_mipi_tx_from_clk_hw(struct clk_hw *hw)

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);

}



static void mtk_mipi_tx_clear_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,

void mtk_mipi_tx_clear_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,

			    u32 bits)

{

	u32 temp = readl(mipi_tx->regs + offset);
@@ -145,7 +18,7 @@ static void mtk_mipi_tx_clear_bits(struct mtk_mipi_tx *mipi_tx, u32 offset, 
	writel(temp & ~bits, mipi_tx->regs + offset);

}



static void mtk_mipi_tx_set_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,

void mtk_mipi_tx_set_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,

			  u32 bits)

{

	u32 temp = readl(mipi_tx->regs + offset);
@@ -153,7 +26,7 @@ static void mtk_mipi_tx_set_bits(struct mtk_mipi_tx *mipi_tx, u32 offset, 
	writel(temp | bits, mipi_tx->regs + offset);

}



static void mtk_mipi_tx_update_bits(struct mtk_mipi_tx *mipi_tx, u32 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);
@@ -161,133 +34,7 @@ static void mtk_mipi_tx_update_bits(struct mtk_mipi_tx *mipi_tx, u32 offset, 
	writel((temp & ~mask) | (data & mask), mipi_tx->regs + offset);

}



static int mtk_mipi_tx_pll_prepare(struct clk_hw *hw)

{

	struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw);

	u8 txdiv, txdiv0, txdiv1;

	u64 pcw;



	dev_dbg(mipi_tx->dev, "prepare: %u Hz\n", mipi_tx->data_rate);



	if (mipi_tx->data_rate >= 500000000) {

		txdiv = 1;

		txdiv0 = 0;

		txdiv1 = 0;

	} else if (mipi_tx->data_rate >= 250000000) {

		txdiv = 2;

		txdiv0 = 1;

		txdiv1 = 0;

	} else if (mipi_tx->data_rate >= 125000000) {

		txdiv = 4;

		txdiv0 = 2;

		txdiv1 = 0;

	} else if (mipi_tx->data_rate > 62000000) {

		txdiv = 8;

		txdiv0 = 2;

		txdiv1 = 1;

	} else if (mipi_tx->data_rate >= 50000000) {

		txdiv = 16;

		txdiv0 = 2;

		txdiv1 = 2;

	} else {

		return -EINVAL;

	}



	mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_BG_CON,

				RG_DSI_VOUT_MSK |

				RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN,

				(4 << 20) | (4 << 17) | (4 << 14) |

				(4 << 11) | (4 << 8) | (4 << 5) |

				RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN);



	usleep_range(30, 100);



	mtk_mipi_tx_update_bits(mipi_tx, 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,

			     RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN);



	mtk_mipi_tx_update_bits(mipi_tx, 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,

			       RG_DSI_MPPLL_PLL_EN);



	mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_CON0,

				RG_DSI_MPPLL_TXDIV0 | RG_DSI_MPPLL_TXDIV1 |

				RG_DSI_MPPLL_PREDIV,

				(txdiv0 << 3) | (txdiv1 << 5));



	/*

	 * PLL PCW config

	 * PCW bit 24~30 = integer part of pcw

	 * PCW bit 0~23 = fractional part of pcw

	 * pcw = data_Rate*4*txdiv/(Ref_clk*2);

	 * Post DIV =4, so need data_Rate*4

	 * Ref_clk is 26MHz

	 */

	pcw = div_u64(((u64)mipi_tx->data_rate * 2 * txdiv) << 24,

		      26000000);

	writel(pcw, mipi_tx->regs + MIPITX_DSI_PLL_CON2);



	mtk_mipi_tx_set_bits(mipi_tx, 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);



	usleep_range(20, 100);



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON1,

			       RG_DSI_MPPLL_SDM_SSC_EN);



	mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_TOP,

				RG_DSI_MPPLL_PRESERVE,

				mipi_tx->driver_data->mppll_preserve);



	return 0;

}



static void mtk_mipi_tx_pll_unprepare(struct clk_hw *hw)

{

	struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw);



	dev_dbg(mipi_tx->dev, "unprepare\n");



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0,

			       RG_DSI_MPPLL_PLL_EN);



	mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_TOP,

				RG_DSI_MPPLL_PRESERVE, 0);



	mtk_mipi_tx_update_bits(mipi_tx, 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,

			       RG_DSI_LNT_HS_BIAS_EN);



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_CON,

			       RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN);



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_BG_CON,

			       RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN);



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0,

			       RG_DSI_MPPLL_DIV_MSK);

}



static long mtk_mipi_tx_pll_round_rate(struct clk_hw *hw, unsigned long rate,

				       unsigned long *prate)

{

	return clamp_val(rate, 50000000, 1250000000);

}



static int mtk_mipi_tx_pll_set_rate(struct clk_hw *hw, unsigned long rate,

int mtk_mipi_tx_pll_set_rate(struct clk_hw *hw, unsigned long rate,

			     unsigned long parent_rate)

{

	struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw);
@@ -299,7 +46,7 @@ static int mtk_mipi_tx_pll_set_rate(struct clk_hw *hw, unsigned long rate, 
	return 0;

}



static unsigned long mtk_mipi_tx_pll_recalc_rate(struct clk_hw *hw,

unsigned long mtk_mipi_tx_pll_recalc_rate(struct clk_hw *hw,

					  unsigned long parent_rate)

{

	struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw);
@@ -307,29 +54,6 @@ static unsigned long mtk_mipi_tx_pll_recalc_rate(struct clk_hw *hw, 
	return mipi_tx->data_rate;

}



static const struct clk_ops mtk_mipi_tx_pll_ops = {

	.prepare = mtk_mipi_tx_pll_prepare,

	.unprepare = mtk_mipi_tx_pll_unprepare,

	.round_rate = mtk_mipi_tx_pll_round_rate,

	.set_rate = mtk_mipi_tx_pll_set_rate,

	.recalc_rate = mtk_mipi_tx_pll_recalc_rate,

};



static int mtk_mipi_tx_power_on_signal(struct phy *phy)

{

	struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy);

	u32 reg;



	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);



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_TOP_CON,

			       RG_DSI_PAD_TIE_LOW_EN);



	return 0;

}



static int mtk_mipi_tx_power_on(struct phy *phy)

{

	struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy);
@@ -341,30 +65,16 @@ static int mtk_mipi_tx_power_on(struct phy *phy) 
		return ret;



	/* Enable DSI Lane LDO outputs, disable pad tie low */

	mtk_mipi_tx_power_on_signal(phy);



	mipi_tx->driver_data->mipi_tx_enable_signal(phy);

	return 0;

}



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,

			     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);

}



static int mtk_mipi_tx_power_off(struct phy *phy)

{

	struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy);



	/* Enable pad tie low, disable DSI Lane LDO outputs */

	mtk_mipi_tx_power_off_signal(phy);

	mipi_tx->driver_data->mipi_tx_disable_signal(phy);



	/* Disable PLL and power down core */

	clk_disable_unprepare(mipi_tx->pll);
@@ -383,10 +93,9 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev) 
	struct device *dev = &pdev->dev;

	struct mtk_mipi_tx *mipi_tx;

	struct resource *mem;

	struct clk *ref_clk;

	const char *ref_clk_name;

	struct clk *ref_clk;

	struct clk_init_data clk_init = {

		.ops = &mtk_mipi_tx_pll_ops,

		.num_parents = 1,

		.parent_names = (const char * const *)&ref_clk_name,

		.flags = CLK_SET_RATE_GATE,
@@ -400,6 +109,7 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev) 
		return -ENOMEM;



	mipi_tx->driver_data = of_device_get_match_data(dev);



	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	mipi_tx->regs = devm_ioremap_resource(dev, mem);

	if (IS_ERR(mipi_tx->regs)) {
@@ -414,6 +124,7 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev) 
		dev_err(dev, "Failed to get reference clock: %d\n", ret);

		return ret;

	}



	ref_clk_name = __clk_get_name(ref_clk);



	ret = of_property_read_string(dev->of_node, "clock-output-names",
@@ -423,6 +134,8 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev) 
		return ret;

	}



	clk_init.ops = mipi_tx->driver_data->mipi_tx_clk_ops;



	mipi_tx->pll_hw.init = &clk_init;

	mipi_tx->pll = devm_clk_register(dev, &mipi_tx->pll_hw);

	if (IS_ERR(mipi_tx->pll)) {
@@ -457,14 +170,6 @@ static int mtk_mipi_tx_remove(struct platform_device *pdev) 
	return 0;

}



static const struct mtk_mipitx_data mt2701_mipitx_data = {

	.mppll_preserve = (3 << 8)

};



static const struct mtk_mipitx_data mt8173_mipitx_data = {

	.mppll_preserve = (0 << 8)

};



static const struct of_device_id mtk_mipi_tx_match[] = {

	{ .compatible = "mediatek,mt2701-mipi-tx",

	  .data = &mt2701_mipitx_data },
@@ -481,3 +186,4 @@ struct platform_driver mtk_mipi_tx_driver = { 
		.of_match_table = mtk_mipi_tx_match,

	},

};

drivers/gpu/drm/mediatek/mtk_mipi_tx.h

0 → 100644
+48 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Copyright (c) 2019 MediaTek Inc.

 * Author: Jitao Shi <jitao.shi@mediatek.com>

 */



#ifndef _MTK_MIPI_TX_H

#define _MTK_MIPI_TX_H



#include <linux/clk.h>

#include <linux/clk-provider.h>

#include <linux/delay.h>

#include <linux/io.h>

#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>

#include <linux/phy/phy.h>



struct mtk_mipitx_data {

	const u32 mppll_preserve;

	const struct clk_ops *mipi_tx_clk_ops;

	void (*mipi_tx_enable_signal)(struct phy *phy);

	void (*mipi_tx_disable_signal)(struct phy *phy);

};



struct mtk_mipi_tx {

	struct device *dev;

	void __iomem *regs;

	u32 data_rate;

	const struct mtk_mipitx_data *driver_data;

	struct clk_hw pll_hw;

	struct clk *pll;

};



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,

					  unsigned long parent_rate);



extern const struct mtk_mipitx_data mt2701_mipitx_data;

extern const struct mtk_mipitx_data mt8173_mipitx_data;



#endif

drivers/gpu/drm/mediatek/mtk_mt8173_mipi_tx.c

0 → 100644
+288 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * Copyright (c) 2019 MediaTek Inc.

 * Author: jitao.shi <jitao.shi@mediatek.com>

 */



#include "mtk_mipi_tx.h"



#define MIPITX_DSI_CON		0x00

#define RG_DSI_LDOCORE_EN		BIT(0)

#define RG_DSI_CKG_LDOOUT_EN		BIT(1)

#define RG_DSI_BCLK_SEL			(3 << 2)

#define RG_DSI_LD_IDX_SEL		(7 << 4)

#define RG_DSI_PHYCLK_SEL		(2 << 8)

#define RG_DSI_DSICLK_FREQ_SEL		BIT(10)

#define RG_DSI_LPTX_CLMP_EN		BIT(11)



#define MIPITX_DSI_CLOCK_LANE	0x04

#define MIPITX_DSI_DATA_LANE0	0x08

#define MIPITX_DSI_DATA_LANE1	0x0c

#define MIPITX_DSI_DATA_LANE2	0x10

#define MIPITX_DSI_DATA_LANE3	0x14

#define RG_DSI_LNTx_LDOOUT_EN		BIT(0)

#define RG_DSI_LNTx_CKLANE_EN		BIT(1)

#define RG_DSI_LNTx_LPTX_IPLUS1		BIT(2)

#define RG_DSI_LNTx_LPTX_IPLUS2		BIT(3)

#define RG_DSI_LNTx_LPTX_IMINUS		BIT(4)

#define RG_DSI_LNTx_LPCD_IPLUS		BIT(5)

#define RG_DSI_LNTx_LPCD_IMINUS		BIT(6)

#define RG_DSI_LNTx_RT_CODE		(0xf << 8)



#define MIPITX_DSI_TOP_CON	0x40

#define RG_DSI_LNT_INTR_EN		BIT(0)

#define RG_DSI_LNT_HS_BIAS_EN		BIT(1)

#define RG_DSI_LNT_IMP_CAL_EN		BIT(2)

#define RG_DSI_LNT_TESTMODE_EN		BIT(3)

#define RG_DSI_LNT_IMP_CAL_CODE		(0xf << 4)

#define RG_DSI_LNT_AIO_SEL		(7 << 8)

#define RG_DSI_PAD_TIE_LOW_EN		BIT(11)

#define RG_DSI_DEBUG_INPUT_EN		BIT(12)

#define RG_DSI_PRESERVE			(7 << 13)



#define MIPITX_DSI_BG_CON	0x44

#define RG_DSI_BG_CORE_EN		BIT(0)

#define RG_DSI_BG_CKEN			BIT(1)

#define RG_DSI_BG_DIV			(0x3 << 2)

#define RG_DSI_BG_FAST_CHARGE		BIT(4)

#define RG_DSI_VOUT_MSK			(0x3ffff << 5)

#define RG_DSI_V12_SEL			(7 << 5)

#define RG_DSI_V10_SEL			(7 << 8)

#define RG_DSI_V072_SEL			(7 << 11)

#define RG_DSI_V04_SEL			(7 << 14)

#define RG_DSI_V032_SEL			(7 << 17)

#define RG_DSI_V02_SEL			(7 << 20)

#define RG_DSI_BG_R1_TRIM		(0xf << 24)

#define RG_DSI_BG_R2_TRIM		(0xf << 28)



#define MIPITX_DSI_PLL_CON0	0x50

#define RG_DSI_MPPLL_PLL_EN		BIT(0)

#define RG_DSI_MPPLL_DIV_MSK		(0x1ff << 1)

#define RG_DSI_MPPLL_PREDIV		(3 << 1)

#define RG_DSI_MPPLL_TXDIV0		(3 << 3)

#define RG_DSI_MPPLL_TXDIV1		(3 << 5)

#define RG_DSI_MPPLL_POSDIV		(7 << 7)

#define RG_DSI_MPPLL_MONVC_EN		BIT(10)

#define RG_DSI_MPPLL_MONREF_EN		BIT(11)

#define RG_DSI_MPPLL_VOD_EN		BIT(12)



#define MIPITX_DSI_PLL_CON1	0x54

#define RG_DSI_MPPLL_SDM_FRA_EN		BIT(0)

#define RG_DSI_MPPLL_SDM_SSC_PH_INIT	BIT(1)

#define RG_DSI_MPPLL_SDM_SSC_EN		BIT(2)

#define RG_DSI_MPPLL_SDM_SSC_PRD	(0xffff << 16)



#define MIPITX_DSI_PLL_CON2	0x58



#define MIPITX_DSI_PLL_TOP	0x64

#define RG_DSI_MPPLL_PRESERVE		(0xff << 8)



#define MIPITX_DSI_PLL_PWR	0x68

#define RG_DSI_MPPLL_SDM_PWR_ON		BIT(0)

#define RG_DSI_MPPLL_SDM_ISO_EN		BIT(1)

#define RG_DSI_MPPLL_SDM_PWR_ACK	BIT(8)



#define MIPITX_DSI_SW_CTRL	0x80

#define SW_CTRL_EN			BIT(0)



#define MIPITX_DSI_SW_CTRL_CON0	0x84

#define SW_LNTC_LPTX_PRE_OE		BIT(0)

#define SW_LNTC_LPTX_OE			BIT(1)

#define SW_LNTC_LPTX_P			BIT(2)

#define SW_LNTC_LPTX_N			BIT(3)

#define SW_LNTC_HSTX_PRE_OE		BIT(4)

#define SW_LNTC_HSTX_OE			BIT(5)

#define SW_LNTC_HSTX_ZEROCLK		BIT(6)

#define SW_LNT0_LPTX_PRE_OE		BIT(7)

#define SW_LNT0_LPTX_OE			BIT(8)

#define SW_LNT0_LPTX_P			BIT(9)

#define SW_LNT0_LPTX_N			BIT(10)

#define SW_LNT0_HSTX_PRE_OE		BIT(11)

#define SW_LNT0_HSTX_OE			BIT(12)

#define SW_LNT0_LPRX_EN			BIT(13)

#define SW_LNT1_LPTX_PRE_OE		BIT(14)

#define SW_LNT1_LPTX_OE			BIT(15)

#define SW_LNT1_LPTX_P			BIT(16)

#define SW_LNT1_LPTX_N			BIT(17)

#define SW_LNT1_HSTX_PRE_OE		BIT(18)

#define SW_LNT1_HSTX_OE			BIT(19)

#define SW_LNT2_LPTX_PRE_OE		BIT(20)

#define SW_LNT2_LPTX_OE			BIT(21)

#define SW_LNT2_LPTX_P			BIT(22)

#define SW_LNT2_LPTX_N			BIT(23)

#define SW_LNT2_HSTX_PRE_OE		BIT(24)

#define SW_LNT2_HSTX_OE			BIT(25)



static int mtk_mipi_tx_pll_prepare(struct clk_hw *hw)

{

	struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw);

	u8 txdiv, txdiv0, txdiv1;

	u64 pcw;



	dev_dbg(mipi_tx->dev, "prepare: %u Hz\n", mipi_tx->data_rate);



	if (mipi_tx->data_rate >= 500000000) {

		txdiv = 1;

		txdiv0 = 0;

		txdiv1 = 0;

	} else if (mipi_tx->data_rate >= 250000000) {

		txdiv = 2;

		txdiv0 = 1;

		txdiv1 = 0;

	} else if (mipi_tx->data_rate >= 125000000) {

		txdiv = 4;

		txdiv0 = 2;

		txdiv1 = 0;

	} else if (mipi_tx->data_rate > 62000000) {

		txdiv = 8;

		txdiv0 = 2;

		txdiv1 = 1;

	} else if (mipi_tx->data_rate >= 50000000) {

		txdiv = 16;

		txdiv0 = 2;

		txdiv1 = 2;

	} else {

		return -EINVAL;

	}



	mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_BG_CON,

				RG_DSI_VOUT_MSK |

				RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN,

				(4 << 20) | (4 << 17) | (4 << 14) |

				(4 << 11) | (4 << 8) | (4 << 5) |

				RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN);



	usleep_range(30, 100);



	mtk_mipi_tx_update_bits(mipi_tx, 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,

			     RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN);



	mtk_mipi_tx_update_bits(mipi_tx, 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,

			       RG_DSI_MPPLL_PLL_EN);



	mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_CON0,

				RG_DSI_MPPLL_TXDIV0 | RG_DSI_MPPLL_TXDIV1 |

				RG_DSI_MPPLL_PREDIV,

				(txdiv0 << 3) | (txdiv1 << 5));



	/*

	 * PLL PCW config

	 * PCW bit 24~30 = integer part of pcw

	 * PCW bit 0~23 = fractional part of pcw

	 * pcw = data_Rate*4*txdiv/(Ref_clk*2);

	 * Post DIV =4, so need data_Rate*4

	 * Ref_clk is 26MHz

	 */

	pcw = div_u64(((u64)mipi_tx->data_rate * 2 * txdiv) << 24,

		      26000000);

	writel(pcw, mipi_tx->regs + MIPITX_DSI_PLL_CON2);



	mtk_mipi_tx_set_bits(mipi_tx, 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);



	usleep_range(20, 100);



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON1,

			       RG_DSI_MPPLL_SDM_SSC_EN);



	mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_TOP,

				RG_DSI_MPPLL_PRESERVE,

				mipi_tx->driver_data->mppll_preserve);



	return 0;

}



static void mtk_mipi_tx_pll_unprepare(struct clk_hw *hw)

{

	struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw);



	dev_dbg(mipi_tx->dev, "unprepare\n");



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0,

			       RG_DSI_MPPLL_PLL_EN);



	mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_TOP,

				RG_DSI_MPPLL_PRESERVE, 0);



	mtk_mipi_tx_update_bits(mipi_tx, 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,

			       RG_DSI_LNT_HS_BIAS_EN);



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_CON,

			       RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN);



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_BG_CON,

			       RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN);



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0,

			       RG_DSI_MPPLL_DIV_MSK);

}



static long mtk_mipi_tx_pll_round_rate(struct clk_hw *hw, unsigned long rate,

				       unsigned long *prate)

{

	return clamp_val(rate, 50000000, 1250000000);

}



static const struct clk_ops mtk_mipi_tx_pll_ops = {

	.prepare = mtk_mipi_tx_pll_prepare,

	.unprepare = mtk_mipi_tx_pll_unprepare,

	.round_rate = mtk_mipi_tx_pll_round_rate,

	.set_rate = mtk_mipi_tx_pll_set_rate,

	.recalc_rate = mtk_mipi_tx_pll_recalc_rate,

};



static void mtk_mipi_tx_power_on_signal(struct phy *phy)

{

	struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy);

	u32 reg;



	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);



	mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_TOP_CON,

			       RG_DSI_PAD_TIE_LOW_EN);

}



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,

			     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);

}



const struct mtk_mipitx_data mt2701_mipitx_data = {

	.mppll_preserve = (3 << 8),

	.mipi_tx_clk_ops = &mtk_mipi_tx_pll_ops,

	.mipi_tx_enable_signal = mtk_mipi_tx_power_on_signal,

	.mipi_tx_disable_signal = mtk_mipi_tx_power_off_signal,

};



const struct mtk_mipitx_data mt8173_mipitx_data = {

	.mppll_preserve = (0 << 8),

	.mipi_tx_clk_ops = &mtk_mipi_tx_pll_ops,

	.mipi_tx_enable_signal = mtk_mipi_tx_power_on_signal,

	.mipi_tx_disable_signal = mtk_mipi_tx_power_off_signal,

};

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