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	Currently sun8i-hdmi-phy driver supports only custom PHYs connected to DW HDMI controller. Since newest Allwinner SoCs have unmodified Synopsys PHY, driver has to be reorganized to support them. Variant structure is expanded to allow differentiation between custom and Sysnopsys PHYs and to hold Synopsys PHY settings. Since DW HDMI bridge platform data has different fields for custom and Sysnopsys PHY, function sun8i_hdmi_phy_get_ops() is replaced with sun8i_hdmi_phy_set_ops(). Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181104182705.18047-22-jernej.skrabec@siol.net
		
			
				
	
	
		
			211 lines
		
	
	
	
		
			8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			211 lines
		
	
	
	
		
			8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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 * Copyright (C) 2018 Jernej Skrabec <jernej.skrabec@siol.net>
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 */
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#ifndef _SUN8I_DW_HDMI_H_
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#define _SUN8I_DW_HDMI_H_
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#include <drm/bridge/dw_hdmi.h>
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#include <drm/drm_encoder.h>
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#include <linux/clk.h>
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#include <linux/regmap.h>
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#include <linux/regulator/consumer.h>
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#include <linux/reset.h>
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#define SUN8I_HDMI_PHY_DBG_CTRL_REG	0x0000
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#define SUN8I_HDMI_PHY_DBG_CTRL_PX_LOCK		BIT(0)
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#define SUN8I_HDMI_PHY_DBG_CTRL_POL_MASK	GENMASK(15, 8)
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#define SUN8I_HDMI_PHY_DBG_CTRL_POL_NHSYNC	BIT(8)
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#define SUN8I_HDMI_PHY_DBG_CTRL_POL_NVSYNC	BIT(9)
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#define SUN8I_HDMI_PHY_DBG_CTRL_ADDR_MASK	GENMASK(23, 16)
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#define SUN8I_HDMI_PHY_DBG_CTRL_ADDR(addr)	(addr << 16)
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#define SUN8I_HDMI_PHY_REXT_CTRL_REG	0x0004
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#define SUN8I_HDMI_PHY_REXT_CTRL_REXT_EN	BIT(31)
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#define SUN8I_HDMI_PHY_READ_EN_REG	0x0010
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#define SUN8I_HDMI_PHY_READ_EN_MAGIC		0x54524545
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#define SUN8I_HDMI_PHY_UNSCRAMBLE_REG	0x0014
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#define SUN8I_HDMI_PHY_UNSCRAMBLE_MAGIC		0x42494E47
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#define SUN8I_HDMI_PHY_ANA_CFG1_REG	0x0020
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#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SWI		BIT(31)
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#define SUN8I_HDMI_PHY_ANA_CFG1_REG_PWEND	BIT(30)
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#define SUN8I_HDMI_PHY_ANA_CFG1_REG_PWENC	BIT(29)
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#define SUN8I_HDMI_PHY_ANA_CFG1_REG_CALSW	BIT(28)
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#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SVRCAL(x)	((x) << 26)
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#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SVBH(x)	((x) << 24)
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#define SUN8I_HDMI_PHY_ANA_CFG1_AMP_OPT		BIT(23)
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#define SUN8I_HDMI_PHY_ANA_CFG1_EMP_OPT		BIT(22)
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#define SUN8I_HDMI_PHY_ANA_CFG1_AMPCK_OPT	BIT(21)
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#define SUN8I_HDMI_PHY_ANA_CFG1_EMPCK_OPT	BIT(20)
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#define SUN8I_HDMI_PHY_ANA_CFG1_ENRCAL		BIT(19)
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#define SUN8I_HDMI_PHY_ANA_CFG1_ENCALOG		BIT(18)
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#define SUN8I_HDMI_PHY_ANA_CFG1_REG_SCKTMDS	BIT(17)
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#define SUN8I_HDMI_PHY_ANA_CFG1_TMDSCLK_EN	BIT(16)
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#define SUN8I_HDMI_PHY_ANA_CFG1_TXEN_MASK	GENMASK(15, 12)
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#define SUN8I_HDMI_PHY_ANA_CFG1_TXEN_ALL	(0xf << 12)
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#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDSCLK	BIT(11)
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#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS2	BIT(10)
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#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS1	BIT(9)
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#define SUN8I_HDMI_PHY_ANA_CFG1_BIASEN_TMDS0	BIT(8)
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#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDSCLK	BIT(7)
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#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS2	BIT(6)
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#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS1	BIT(5)
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#define SUN8I_HDMI_PHY_ANA_CFG1_ENP2S_TMDS0	BIT(4)
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#define SUN8I_HDMI_PHY_ANA_CFG1_CKEN		BIT(3)
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#define SUN8I_HDMI_PHY_ANA_CFG1_LDOEN		BIT(2)
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#define SUN8I_HDMI_PHY_ANA_CFG1_ENVBS		BIT(1)
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#define SUN8I_HDMI_PHY_ANA_CFG1_ENBI		BIT(0)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG	0x0024
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#define SUN8I_HDMI_PHY_ANA_CFG2_M_EN		BIT(31)
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#define SUN8I_HDMI_PHY_ANA_CFG2_PLLDBEN		BIT(30)
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#define SUN8I_HDMI_PHY_ANA_CFG2_SEN		BIT(29)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_HPDPD	BIT(28)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_HPDEN	BIT(27)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_PLRCK	BIT(26)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_PLR(x)	((x) << 23)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_DENCK	BIT(22)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_DEN		BIT(21)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_CD(x)	((x) << 19)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_CKSS(x)	((x) << 17)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSWCK	BIT(16)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSW	BIT(15)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_CSMPS(x)	((x) << 13)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_SLV(x)	((x) << 10)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BOOSTCK(x)	((x) << 8)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_BOOST(x)	((x) << 6)
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#define SUN8I_HDMI_PHY_ANA_CFG2_REG_RESDI(x)	((x) << 0)
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#define SUN8I_HDMI_PHY_ANA_CFG3_REG	0x0028
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#define SUN8I_HDMI_PHY_ANA_CFG3_REG_SLOWCK(x)	((x) << 30)
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#define SUN8I_HDMI_PHY_ANA_CFG3_REG_SLOW(x)	((x) << 28)
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#define SUN8I_HDMI_PHY_ANA_CFG3_REG_WIRE(x)	((x) << 18)
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#define SUN8I_HDMI_PHY_ANA_CFG3_REG_AMPCK(x)	((x) << 14)
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#define SUN8I_HDMI_PHY_ANA_CFG3_REG_EMPCK(x)	((x) << 11)
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#define SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(x)	((x) << 7)
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#define SUN8I_HDMI_PHY_ANA_CFG3_REG_EMP(x)	((x) << 4)
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#define SUN8I_HDMI_PHY_ANA_CFG3_SDAPD		BIT(3)
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#define SUN8I_HDMI_PHY_ANA_CFG3_SDAEN		BIT(2)
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#define SUN8I_HDMI_PHY_ANA_CFG3_SCLPD		BIT(1)
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#define SUN8I_HDMI_PHY_ANA_CFG3_SCLEN		BIT(0)
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#define SUN8I_HDMI_PHY_PLL_CFG1_REG	0x002c
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#define SUN8I_HDMI_PHY_PLL_CFG1_REG_OD1		BIT(31)
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#define SUN8I_HDMI_PHY_PLL_CFG1_REG_OD		BIT(30)
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#define SUN8I_HDMI_PHY_PLL_CFG1_LDO2_EN		BIT(29)
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#define SUN8I_HDMI_PHY_PLL_CFG1_LDO1_EN		BIT(28)
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#define SUN8I_HDMI_PHY_PLL_CFG1_HV_IS_33	BIT(27)
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#define SUN8I_HDMI_PHY_PLL_CFG1_CKIN_SEL_MSK	BIT(26)
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#define SUN8I_HDMI_PHY_PLL_CFG1_CKIN_SEL_SHIFT	26
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#define SUN8I_HDMI_PHY_PLL_CFG1_PLLEN		BIT(25)
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#define SUN8I_HDMI_PHY_PLL_CFG1_LDO_VSET(x)	((x) << 22)
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#define SUN8I_HDMI_PHY_PLL_CFG1_UNKNOWN(x)	((x) << 20)
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#define SUN8I_HDMI_PHY_PLL_CFG1_PLLDBEN		BIT(19)
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#define SUN8I_HDMI_PHY_PLL_CFG1_CS		BIT(18)
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#define SUN8I_HDMI_PHY_PLL_CFG1_CP_S(x)		((x) << 13)
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#define SUN8I_HDMI_PHY_PLL_CFG1_CNT_INT(x)	((x) << 7)
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#define SUN8I_HDMI_PHY_PLL_CFG1_BWS		BIT(6)
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#define SUN8I_HDMI_PHY_PLL_CFG1_B_IN_MSK	GENMASK(5, 0)
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#define SUN8I_HDMI_PHY_PLL_CFG1_B_IN_SHIFT	0
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#define SUN8I_HDMI_PHY_PLL_CFG2_REG	0x0030
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#define SUN8I_HDMI_PHY_PLL_CFG2_SV_H		BIT(31)
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#define SUN8I_HDMI_PHY_PLL_CFG2_PDCLKSEL(x)	((x) << 29)
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#define SUN8I_HDMI_PHY_PLL_CFG2_CLKSTEP(x)	((x) << 27)
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#define SUN8I_HDMI_PHY_PLL_CFG2_PSET(x)		((x) << 24)
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#define SUN8I_HDMI_PHY_PLL_CFG2_PCLK_SEL	BIT(23)
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#define SUN8I_HDMI_PHY_PLL_CFG2_AUTOSYNC_DIS	BIT(22)
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#define SUN8I_HDMI_PHY_PLL_CFG2_VREG2_OUT_EN	BIT(21)
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#define SUN8I_HDMI_PHY_PLL_CFG2_VREG1_OUT_EN	BIT(20)
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#define SUN8I_HDMI_PHY_PLL_CFG2_VCOGAIN_EN	BIT(19)
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#define SUN8I_HDMI_PHY_PLL_CFG2_VCOGAIN(x)	((x) << 16)
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#define SUN8I_HDMI_PHY_PLL_CFG2_VCO_S(x)	((x) << 12)
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#define SUN8I_HDMI_PHY_PLL_CFG2_VCO_RST_IN	BIT(11)
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#define SUN8I_HDMI_PHY_PLL_CFG2_SINT_FRAC	BIT(10)
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#define SUN8I_HDMI_PHY_PLL_CFG2_SDIV2		BIT(9)
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#define SUN8I_HDMI_PHY_PLL_CFG2_S(x)		((x) << 6)
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#define SUN8I_HDMI_PHY_PLL_CFG2_S6P25_7P5	BIT(5)
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#define SUN8I_HDMI_PHY_PLL_CFG2_S5_7		BIT(4)
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#define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV_MSK	GENMASK(3, 0)
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#define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV_SHIFT	0
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#define SUN8I_HDMI_PHY_PLL_CFG2_PREDIV(x)	(((x) - 1) << 0)
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#define SUN8I_HDMI_PHY_PLL_CFG3_REG	0x0034
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#define SUN8I_HDMI_PHY_PLL_CFG3_SOUT_DIV2	BIT(0)
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#define SUN8I_HDMI_PHY_ANA_STS_REG	0x0038
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#define SUN8I_HDMI_PHY_ANA_STS_B_OUT_SHIFT	11
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#define SUN8I_HDMI_PHY_ANA_STS_B_OUT_MSK	GENMASK(16, 11)
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#define SUN8I_HDMI_PHY_ANA_STS_RCALEND2D	BIT(7)
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#define SUN8I_HDMI_PHY_ANA_STS_RCAL_MASK	GENMASK(5, 0)
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#define SUN8I_HDMI_PHY_CEC_REG		0x003c
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struct sun8i_hdmi_phy;
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struct sun8i_hdmi_phy_variant {
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	bool has_phy_clk;
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	bool has_second_pll;
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	unsigned int is_custom_phy : 1;
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	const struct dw_hdmi_curr_ctrl *cur_ctr;
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	const struct dw_hdmi_mpll_config *mpll_cfg;
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	const struct dw_hdmi_phy_config *phy_cfg;
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	void (*phy_init)(struct sun8i_hdmi_phy *phy);
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	void (*phy_disable)(struct dw_hdmi *hdmi,
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			    struct sun8i_hdmi_phy *phy);
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	int  (*phy_config)(struct dw_hdmi *hdmi,
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			   struct sun8i_hdmi_phy *phy,
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			   unsigned int clk_rate);
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};
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struct sun8i_hdmi_phy {
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	struct clk			*clk_bus;
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	struct clk			*clk_mod;
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	struct clk			*clk_phy;
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	struct clk			*clk_pll0;
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	struct clk			*clk_pll1;
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	unsigned int			rcal;
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	struct regmap			*regs;
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	struct reset_control		*rst_phy;
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	struct sun8i_hdmi_phy_variant	*variant;
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};
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struct sun8i_dw_hdmi_quirks {
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	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
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					   const struct drm_display_mode *mode);
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	unsigned int set_rate : 1;
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};
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struct sun8i_dw_hdmi {
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	struct clk			*clk_tmds;
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	struct device			*dev;
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	struct dw_hdmi			*hdmi;
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	struct drm_encoder		encoder;
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	struct sun8i_hdmi_phy		*phy;
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	struct dw_hdmi_plat_data	plat_data;
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	struct regulator		*regulator;
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	const struct sun8i_dw_hdmi_quirks *quirks;
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	struct reset_control		*rst_ctrl;
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};
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static inline struct sun8i_dw_hdmi *
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encoder_to_sun8i_dw_hdmi(struct drm_encoder *encoder)
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{
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	return container_of(encoder, struct sun8i_dw_hdmi, encoder);
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}
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int sun8i_hdmi_phy_probe(struct sun8i_dw_hdmi *hdmi, struct device_node *node);
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void sun8i_hdmi_phy_remove(struct sun8i_dw_hdmi *hdmi);
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void sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy);
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void sun8i_hdmi_phy_set_ops(struct sun8i_hdmi_phy *phy,
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			    struct dw_hdmi_plat_data *plat_data);
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int sun8i_phy_clk_create(struct sun8i_hdmi_phy *phy, struct device *dev,
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			 bool second_parent);
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#endif /* _SUN8I_DW_HDMI_H_ */
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