[PATCH v1 6/6] drm/mediatek: Add mt8195 DisplayPort driver
Chun-Kuang Hu
chunkuang.hu at kernel.org
Thu Sep 9 23:37:50 UTC 2021
Hi, Markus:
Markus Schneider-Pargmann <msp at baylibre.com> 於 2021年9月7日 週二 上午3:37寫道：
>
> This patch adds a DisplayPort driver for the Mediatek mt8195 SoC.
>
> It supports both functional units on the mt8195, the embedded
> DisplayPort as well as the external DisplayPort units. It offers
> hot-plug-detection, audio up to 8 channels, and DisplayPort 1.4 with up
> to 4 lanes.
>
> This driver is based on an initial version by
> Jason-JH.Lin <jason-jh.lin at mediatek.com>.
>
> Signed-off-by: Markus Schneider-Pargmann <msp at baylibre.com>
> ---
>
> Notes:
> Changes RFC -> v1:
> - Removed unused register definitions.
> - Replaced workqueue with threaded irq.
> - Removed connector code.
> - Move to atomic_* drm functions.
> - General cleanups of the code.
> - Remove unused select GENERIC_PHY.
>
> drivers/gpu/drm/mediatek/Kconfig | 6 +
> drivers/gpu/drm/mediatek/Makefile | 2 +
> drivers/gpu/drm/mediatek/mtk_dp.c | 2881 +++++++++++++++++++++++++
> drivers/gpu/drm/mediatek/mtk_dp_reg.h | 580 +++++
> 4 files changed, 3469 insertions(+)
> create mode 100644 drivers/gpu/drm/mediatek/mtk_dp.c
> create mode 100644 drivers/gpu/drm/mediatek/mtk_dp_reg.h
>
[snip]
> diff --git a/drivers/gpu/drm/mediatek/mtk_dp_reg.h b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
> new file mode 100644
> index 000000000000..26ed3b66da91
> --- /dev/null
> +++ b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
> @@ -0,0 +1,580 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2019 MediaTek Inc.
> + * Copyright (c) 2021 BayLibre
> + */
> +#ifndef _MTK_DP_REG_H_
> +#define _MTK_DP_REG_H_
> +
> +#define MTK_DP_SIP_CONTROL_AARCH32 0x82000523
> +# define MTK_DP_SIP_ATF_VIDEO_UNMUTE 0x20
> +# define MTK_DP_SIP_ATF_EDP_VIDEO_UNMUTE 0x21
> +
> +#define TOP_OFFSET 0x2000
> +#define ENC0_OFFSET 0x3000
> +#define ENC1_OFFSET 0x3200
> +#define TRANS_OFFSET 0x3400
> +#define AUX_OFFSET 0x3600
> +#define SEC_OFFSET 0x4000
> +
> +#define MTK_DP_HPD_DISCONNECT BIT(1)
> +#define MTK_DP_HPD_CONNECT BIT(2)
> +#define MTK_DP_HPD_INTERRUPT BIT(3)
> +
> +#define MTK_DP_ENC0_P0_3000 (ENC0_OFFSET + 0x000)
> +# define LANE_NUM_DP_ENC0_P0_MASK 0x3
> +# define VIDEO_MUTE_SW_DP_ENC0_P0_MASK 0x4
> +# define VIDEO_MUTE_SW_DP_ENC0_P0_SHIFT 2
> +# define VIDEO_MUTE_SEL_DP_ENC0_P0_MASK 0x8
> +# define VIDEO_MUTE_SEL_DP_ENC0_P0_SHIFT 3
> +# define ENHANCED_FRAME_EN_DP_ENC0_P0_MASK 0x10
> +# define ENHANCED_FRAME_EN_DP_ENC0_P0_SHIFT 4
> +
> +#define MTK_DP_ENC0_P0_3004 (ENC0_OFFSET + 0x004)
> +# define VIDEO_M_CODE_SEL_DP_ENC0_P0_MASK 0x100
> +# define VIDEO_M_CODE_SEL_DP_ENC0_P0_SHIFT 8
> +# define DP_TX_ENCODER_4P_RESET_SW_DP_ENC0_P0_MASK 0x200
> +# define DP_TX_ENCODER_4P_RESET_SW_DP_ENC0_P0_SHIFT 9
> +
> +#define MTK_DP_ENC0_P0_3008 (ENC0_OFFSET + 0x008)
> +# define VIDEO_M_CODE_SW_0_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_300C (ENC0_OFFSET + 0x00C)
> +# define VIDEO_M_CODE_SW_1_DP_ENC0_P0_MASK 0xff
> +
> +#define MTK_DP_ENC0_P0_3010 (ENC0_OFFSET + 0x010)
> +# define HTOTAL_SW_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_3014 (ENC0_OFFSET + 0x014)
> +# define VTOTAL_SW_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_3018 (ENC0_OFFSET + 0x018)
> +# define HSTART_SW_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_301C (ENC0_OFFSET + 0x01C)
> +# define VSTART_SW_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_3020 (ENC0_OFFSET + 0x020)
> +# define HWIDTH_SW_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_3024 (ENC0_OFFSET + 0x024)
> +# define VHEIGHT_SW_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_3028 (ENC0_OFFSET + 0x028)
> +# define HSW_SW_DP_ENC0_P0_MASK 0x7fff
> +# define HSW_SW_DP_ENC0_P0_SHIFT 0
> +# define HSP_SW_DP_ENC0_P0_MASK 0x8000
> +
> +#define MTK_DP_ENC0_P0_302C (ENC0_OFFSET + 0x02C)
> +# define VSW_SW_DP_ENC0_P0_MASK 0x7fff
> +# define VSW_SW_DP_ENC0_P0_SHIFT 0
> +# define VSP_SW_DP_ENC0_P0_MASK 0x8000
> +
> +#define MTK_DP_ENC0_P0_3030 (ENC0_OFFSET + 0x030)
> +# define HTOTAL_SEL_DP_ENC0_P0_SHIFT 0
> +# define VTOTAL_SEL_DP_ENC0_P0_SHIFT 1
> +# define HSTART_SEL_DP_ENC0_P0_SHIFT 2
> +# define VSTART_SEL_DP_ENC0_P0_SHIFT 3
> +# define HWIDTH_SEL_DP_ENC0_P0_SHIFT 4
> +# define VHEIGHT_SEL_DP_ENC0_P0_SHIFT 5
> +# define HSP_SEL_DP_ENC0_P0_SHIFT 6
> +# define HSW_SEL_DP_ENC0_P0_SHIFT 7
> +# define VSP_SEL_DP_ENC0_P0_SHIFT 8
> +# define VSW_SEL_DP_ENC0_P0_SHIFT 9
> +# define VBID_AUDIO_MUTE_FLAG_SW_DP_ENC0_P0_MASK 0x800
> +# define VBID_AUDIO_MUTE_SW_DP_ENC0_P0_SHIFT 11
> +# define VBID_AUDIO_MUTE_FLAG_SEL_DP_ENC0_P0_MASK 0x1000
> +# define VBID_AUDIO_MUTE_SEL_DP_ENC0_P0_SHIFT 12
> +
> +#define MTK_DP_ENC0_P0_3034 (ENC0_OFFSET + 0x034)
> +
> +#define MTK_DP_ENC0_P0_3038 (ENC0_OFFSET + 0x038)
> +# define VIDEO_SOURCE_SEL_DP_ENC0_P0_MASK 0x800
> +# define VIDEO_SOURCE_SEL_DP_ENC0_P0_SHIFT 11
> +
> +#define MTK_DP_ENC0_P0_303C (ENC0_OFFSET + 0x03C)
> +# define SRAM_START_READ_THRD_DP_ENC0_P0_MASK 0x3f
> +# define SRAM_START_READ_THRD_DP_ENC0_P0_SHIFT 0
> +# define VIDEO_COLOR_DEPTH_DP_ENC0_P0_MASK 0x700
> +# define VIDEO_COLOR_DEPTH_DP_ENC0_P0_SHIFT 8
> +# define VIDEO_COLOR_DEPTH_DP_ENC0_P0_16BIT (0 << VIDEO_COLOR_DEPTH_DP_ENC0_P0_SHIFT)
> +# define VIDEO_COLOR_DEPTH_DP_ENC0_P0_12BIT (1 << VIDEO_COLOR_DEPTH_DP_ENC0_P0_SHIFT)
> +# define VIDEO_COLOR_DEPTH_DP_ENC0_P0_10BIT (2 << VIDEO_COLOR_DEPTH_DP_ENC0_P0_SHIFT)
> +# define VIDEO_COLOR_DEPTH_DP_ENC0_P0_8BIT (3 << VIDEO_COLOR_DEPTH_DP_ENC0_P0_SHIFT)
> +# define VIDEO_COLOR_DEPTH_DP_ENC0_P0_6BIT (4 << VIDEO_COLOR_DEPTH_DP_ENC0_P0_SHIFT)
> +# define PIXEL_ENCODE_FORMAT_DP_ENC0_P0_MASK 0x7000
> +# define PIXEL_ENCODE_FORMAT_DP_ENC0_P0_SHIFT 12
> +# define PIXEL_ENCODE_FORMAT_DP_ENC0_P0_RGB (0 << PIXEL_ENCODE_FORMAT_DP_ENC0_P0_SHIFT)
> +# define PIXEL_ENCODE_FORMAT_DP_ENC0_P0_YCBCR422 (1 << PIXEL_ENCODE_FORMAT_DP_ENC0_P0_SHIFT)
> +# define PIXEL_ENCODE_FORMAT_DP_ENC0_P0_YCBCR420 (2 << PIXEL_ENCODE_FORMAT_DP_ENC0_P0_SHIFT)
> +# define VIDEO_MN_GEN_EN_DP_ENC0_P0_MASK 0x8000
> +# define VIDEO_MN_GEN_EN_DP_ENC0_P0_SHIFT 15
> +
> +#define MTK_DP_ENC0_P0_3040 (ENC0_OFFSET + 0x040)
> +# define SDP_DOWN_CNT_INIT_DP_ENC0_P0_MASK 0xfff
> +# define SDP_DOWN_CNT_INIT_DP_ENC0_P0_SHIFT 0
> +
> +#define MTK_DP_ENC0_P0_3044 (ENC0_OFFSET + 0x044)
> +# define VIDEO_N_CODE_0_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_3048 (ENC0_OFFSET + 0x048)
> +# define VIDEO_N_CODE_1_DP_ENC0_P0_MASK 0xff
> +
> +#define MTK_DP_ENC0_P0_304C (ENC0_OFFSET + 0x04C)
> +# define VBID_VIDEO_MUTE_DP_ENC0_P0_MASK 0x4
> +# define SDP_VSYNC_RISING_MASK_DP_ENC0_P0_MASK 0x100
> +
> +#define MTK_DP_ENC0_P0_3050 (ENC0_OFFSET + 0x050)
> +# define VIDEO_N_CODE_MN_GEN_0_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_3054 (ENC0_OFFSET + 0x054)
> +# define VIDEO_N_CODE_MN_GEN_1_DP_ENC0_P0_MASK 0xff
> +
> +#define MTK_DP_ENC0_P0_3064 (ENC0_OFFSET + 0x064)
> +# define HDE_NUM_LAST_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_3088 (ENC0_OFFSET + 0x088)
> +# define AU_EN_DP_ENC0_P0_MASK 0x40
> +# define AU_EN_DP_ENC0_P0_SHIFT 6
> +# define AUDIO_8CH_EN_DP_ENC0_P0_MASK 0x80
> +# define AUDIO_8CH_SEL_DP_ENC0_P0_MASK 0x100
> +# define AUDIO_2CH_EN_DP_ENC0_P0_MASK 0x4000
> +# define AUDIO_2CH_SEL_DP_ENC0_P0_MASK 0x8000
> +
> +#define MTK_DP_ENC0_P0_308C (ENC0_OFFSET + 0x08C)
> +# define CH_STATUS_0_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_3090 (ENC0_OFFSET + 0x090)
> +# define CH_STATUS_1_DP_ENC0_P0_MASK 0xffff
> +
> +#define MTK_DP_ENC0_P0_3094 (ENC0_OFFSET + 0x094)
> +# define CH_STATUS_2_DP_ENC0_P0_MASK 0xff
> +
> +#define MTK_DP_ENC0_P0_30A0 (ENC0_OFFSET + 0x0A0)
> +
> +#define MTK_DP_ENC0_P0_30A4 (ENC0_OFFSET + 0x0A4)
> +# define AU_TS_CFG_DP_ENC0_P0_MASK 0xff
> +
> +#define MTK_DP_ENC0_P0_30A8 (ENC0_OFFSET + 0x0A8)
> +
> +#define MTK_DP_ENC0_P0_30AC (ENC0_OFFSET + 0x0AC)
> +
> +#define MTK_DP_ENC0_P0_30B0 (ENC0_OFFSET + 0x0B0)
> +
> +#define MTK_DP_ENC0_P0_30B4 (ENC0_OFFSET + 0x0B4)
> +# define ISRC_CFG_DP_ENC0_P0_MASK 0xff00
> +# define ISRC_CFG_DP_ENC0_P0_SHIFT 8
> +
> +#define MTK_DP_ENC0_P0_30B8 (ENC0_OFFSET + 0x0B8)
> +
> +#define MTK_DP_ENC0_P0_30BC (ENC0_OFFSET + 0x0BC)
> +# define ISRC_CONT_DP_ENC0_P0_MASK 0x1
> +# define ISRC_CONT_DP_ENC0_P0_SHIFT 0
> +# define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MASK 0x700
> +# define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_SHIFT 8
> +
> +#define MTK_DP_ENC0_P0_30D8 (ENC0_OFFSET + 0x0D8)
> +
> +#define MTK_DP_ENC0_P0_312C (ENC0_OFFSET + 0x12C)
> +# define ASP_HB2_DP_ENC0_P0_MASK 0xff
> +# define ASP_HB3_DP_ENC0_P0_MASK 0xff00
> +# define ASP_HB3_DP_ENC0_P0_SHIFT 8
> +
> +#define MTK_DP_ENC0_P0_3130 (ENC0_OFFSET + 0x130)
> +
> +#define MTK_DP_ENC0_P0_3138 (ENC0_OFFSET + 0x138)
> +
> +#define MTK_DP_ENC0_P0_3154 (ENC0_OFFSET + 0x154)
> +# define PGEN_HTOTAL_DP_ENC0_P0_MASK 0x3fff
> +
> +#define MTK_DP_ENC0_P0_3158 (ENC0_OFFSET + 0x158)
> +# define PGEN_HSYNC_RISING_DP_ENC0_P0_MASK 0x3fff
> +
> +#define MTK_DP_ENC0_P0_315C (ENC0_OFFSET + 0x15C)
> +# define PGEN_HSYNC_PULSE_WIDTH_DP_ENC0_P0_MASK 0x3fff
> +
> +#define MTK_DP_ENC0_P0_3160 (ENC0_OFFSET + 0x160)
> +# define PGEN_HFDE_START_DP_ENC0_P0_MASK 0x3fff
> +
> +#define MTK_DP_ENC0_P0_3164 (ENC0_OFFSET + 0x164)
> +# define PGEN_HFDE_ACTIVE_WIDTH_DP_ENC0_P0_MASK 0x3fff
> +
> +#define MTK_DP_ENC0_P0_3168 (ENC0_OFFSET + 0x168)
> +# define PGEN_VTOTAL_DP_ENC0_P0_MASK 0x1fff
> +
> +#define MTK_DP_ENC0_P0_316C (ENC0_OFFSET + 0x16C)
> +# define PGEN_VSYNC_RISING_DP_ENC0_P0_MASK 0x1fff
> +
> +#define MTK_DP_ENC0_P0_3170 (ENC0_OFFSET + 0x170)
> +# define PGEN_VSYNC_PULSE_WIDTH_DP_ENC0_P0_MASK 0x1fff
> +
> +#define MTK_DP_ENC0_P0_3174 (ENC0_OFFSET + 0x174)
> +# define PGEN_VFDE_START_DP_ENC0_P0_MASK 0x1fff
> +
> +#define MTK_DP_ENC0_P0_3178 (ENC0_OFFSET + 0x178)
> +# define PGEN_VFDE_ACTIVE_WIDTH_DP_ENC0_P0_MASK 0x1fff
> +
> +#define MTK_DP_ENC0_P0_31B0 (ENC0_OFFSET + 0x1B0)
> +
> +#define MTK_DP_ENC0_P0_31C8 (ENC0_OFFSET + 0x1C8)
> +# define VSC_EXT_VESA_HB0_DP_ENC0_P0_MASK 0xff
> +# define VSC_EXT_VESA_HB1_DP_ENC0_P0_MASK 0xff00
> +# define VSC_EXT_VESA_HB1_DP_ENC0_P0_SHIFT 8
> +
> +#define MTK_DP_ENC0_P0_31CC (ENC0_OFFSET + 0x1CC)
> +# define VSC_EXT_VESA_HB2_DP_ENC0_P0_MASK 0xff
> +# define VSC_EXT_VESA_HB2_DP_ENC0_P0_SHIFT 0
> +# define VSC_EXT_VESA_HB3_DP_ENC0_P0_MASK 0xff00
> +
> +#define MTK_DP_ENC0_P0_31D0 (ENC0_OFFSET + 0x1D0)
> +# define VSC_EXT_CEA_HB0_DP_ENC0_P0_MASK 0xff
> +# define VSC_EXT_CEA_HB1_DP_ENC0_P0_MASK 0xff00
> +# define VSC_EXT_CEA_HB1_DP_ENC0_P0_SHIFT 8
> +
> +#define MTK_DP_ENC0_P0_31D4 (ENC0_OFFSET + 0x1D4)
> +# define VSC_EXT_CEA_HB2_DP_ENC0_P0_MASK 0xff
> +# define VSC_EXT_CEA_HB2_DP_ENC0_P0_SHIFT 0
> +# define VSC_EXT_CEA_HB3_DP_ENC0_P0_MASK 0xff00
> +
> +#define MTK_DP_ENC0_P0_31D8 (ENC0_OFFSET + 0x1D8)
> +# define VSC_EXT_VESA_NUM_DP_ENC0_P0_MASK 0x3f
> +# define VSC_EXT_VESA_NUM_DP_ENC0_P0_SHIFT 0
> +# define VSC_EXT_CEA_NUM_DP_ENC0_P0_MASK 0x3f00
> +# define VSC_EXT_CEA_NUM_DP_ENC0_P0_SHIFT 8
> +
> +#define MTK_DP_ENC0_P0_31DC (ENC0_OFFSET + 0x1DC)
> +# define HDR0_CFG_DP_ENC0_P0_MASK 0xff
> +# define HDR0_CFG_DP_ENC0_P0_SHIFT 0
> +
> +#define MTK_DP_ENC0_P0_31E8 (ENC0_OFFSET + 0x1E8)
> +
> +#define MTK_DP_ENC0_P0_31EC (ENC0_OFFSET + 0x1EC)
> +# define AUDIO_CH_SRC_SEL_DP_ENC0_P0_MASK 0x10
> +# define AUDIO_CH_SRC_SEL_DP_ENC0_P0_SHIFT 4
> +# define ISRC1_HB3_DP_ENC0_P0_MASK 0xff00
> +# define ISRC1_HB3_DP_ENC0_P0_SHIFT 8
> +
> +#define MTK_DP_ENC1_P0_3200 (ENC1_OFFSET + 0x000)
> +
> +#define MTK_DP_ENC1_P0_3280 (ENC1_OFFSET + 0x080)
> +# define SDP_PACKET_TYPE_DP_ENC1_P0_MASK 0x1f
> +# define SDP_PACKET_W_DP_ENC1_P0 0x20
> +# define SDP_PACKET_W_DP_ENC1_P0_MASK 0x20
> +# define SDP_PACKET_W_DP_ENC1_P0_SHIFT 5
> +
> +#define MTK_DP_ENC1_P0_328C (ENC1_OFFSET + 0x08C)
> +
> +#define MTK_DP_ENC1_P0_3290 (ENC1_OFFSET + 0x090)
> +
> +#define MTK_DP_ENC1_P0_32A0 (ENC1_OFFSET + 0x0A0)
> +
> +#define MTK_DP_ENC1_P0_32A4 (ENC1_OFFSET + 0x0A4)
> +
> +#define MTK_DP_ENC1_P0_3300 (ENC1_OFFSET + 0x100)
> +# define VIDEO_AFIFO_RDY_SEL_DP_ENC1_P0_MASK 0x300
> +# define VIDEO_AFIFO_RDY_SEL_DP_ENC1_P0_SHIFT 8
> +
> +#define MTK_DP_ENC1_P0_3304 (ENC1_OFFSET + 0x104)
> +# define AU_PRTY_REGEN_DP_ENC1_P0_MASK 0x100
> +# define AU_CH_STS_REGEN_DP_ENC1_P0_MASK 0x200
> +# define AUDIO_SAMPLE_PRSENT_REGEN_DP_ENC1_P0_MASK 0x1000
> +
> +#define MTK_DP_ENC1_P0_3324 (ENC1_OFFSET + 0x124)
> +# define AUDIO_SOURCE_MUX_DP_ENC1_P0_MASK 0x300
> +# define AUDIO_SOURCE_MUX_DP_ENC1_P0_SHIFT 8
> +# define AUDIO_SOURCE_MUX_DP_ENC1_P0_DPRX (0 << AUDIO_SOURCE_MUX_DP_ENC1_P0_SHIFT)
> +
> +#define MTK_DP_ENC1_P0_3364 (ENC1_OFFSET + 0x164)
> +# define SDP_DOWN_CNT_INIT_IN_HBLANK_DP_ENC1_P0_MASK 0xfff
> +# define SDP_DOWN_CNT_INIT_IN_HBLANK_DP_ENC1_P0_SHIFT 0
> +# define FIFO_READ_START_POINT_DP_ENC1_P0_MASK 0xf000
> +# define FIFO_READ_START_POINT_DP_ENC1_P0_SHIFT 12
> +
> +#define MTK_DP_ENC1_P0_3368 (ENC1_OFFSET + 0x168)
> +# define VIDEO_SRAM_FIFO_CNT_RESET_SEL_DP_ENC1_P0_SHIFT 0
> +# define VIDEO_STABLE_CNT_THRD_DP_ENC1_P0_SHIFT 4
> +# define SDP_DP13_EN_DP_ENC1_P0_SHIFT 8
> +# define BS2BS_MODE_DP_ENC1_P0_MASK 0x3000
> +# define BS2BS_MODE_DP_ENC1_P0_SHIFT 12
> +
> +#define MTK_DP_ENC1_P0_33F4 (ENC1_OFFSET + 0x1F4)
> +
> +#define MTK_DP_TRANS_P0_3400 (TRANS_OFFSET + 0x000)
> +# define PATTERN1_EN_DP_TRANS_P0_MASK 0x1000
> +# define PATTERN1_EN_DP_TRANS_P0_SHIFT 12
> +# define PATTERN2_EN_DP_TRANS_P0_MASK 0x2000
> +# define PATTERN3_EN_DP_TRANS_P0_MASK 0x4000
> +# define PATTERN4_EN_DP_TRANS_P0_MASK 0x8000
> +
> +#define MTK_DP_TRANS_P0_3404 (TRANS_OFFSET + 0x004)
> +# define DP_SCR_EN_DP_TRANS_P0_MASK 0x1
> +
> +#define MTK_DP_TRANS_P0_340C (TRANS_OFFSET + 0x00C)
> +# define DP_TX_TRANSMITTER_4P_RESET_SW_DP_TRANS_P0_MASK 0x2000
> +# define DP_TX_TRANSMITTER_4P_RESET_SW_DP_TRANS_P0_SHIFT 13
> +
> +#define MTK_DP_TRANS_P0_3410 (TRANS_OFFSET + 0x010)
> +# define HPD_DEB_THD_DP_TRANS_P0_MASK 0xf
> +# define HPD_DEB_THD_DP_TRANS_P0_SHIFT 0
> +# define HPD_INT_THD_DP_TRANS_P0_MASK 0xf0
> +# define HPD_INT_THD_DP_TRANS_P0_SHIFT 4
> +# define HPD_INT_THD_DP_TRANS_P0_LOWER_500US (2 << HPD_INT_THD_DP_TRANS_P0_SHIFT)
> +# define HPD_INT_THD_DP_TRANS_P0_UPPER_1100US (2 << (HPD_INT_THD_DP_TRANS_P0_SHIFT + 2))
> +# define HPD_DISC_THD_DP_TRANS_P0_MASK 0xf00
> +# define HPD_DISC_THD_DP_TRANS_P0_SHIFT 8
> +# define HPD_CONN_THD_DP_TRANS_P0_MASK 0xf000
> +# define HPD_CONN_THD_DP_TRANS_P0_SHIFT 12
> +
> +#define MTK_DP_TRANS_P0_3414 (TRANS_OFFSET + 0x014)
> +# define HPD_DB_DP_TRANS_P0_MASK 0x4
> +
> +#define MTK_DP_TRANS_P0_3418 (TRANS_OFFSET + 0x018)
> +# define IRQ_CLR_DP_TRANS_P0_MASK 0xf
> +# define IRQ_MASK_DP_TRANS_P0_MASK 0xf0
> +# define IRQ_MASK_DP_TRANS_P0_SHIFT 4
> +# define IRQ_MASK_DP_TRANS_P0_DISC_IRQ (BIT(1) << IRQ_MASK_DP_TRANS_P0_SHIFT)
> +# define IRQ_MASK_DP_TRANS_P0_CONN_IRQ (BIT(2) << IRQ_MASK_DP_TRANS_P0_SHIFT)
> +# define IRQ_MASK_DP_TRANS_P0_INT_IRQ (BIT(3) << IRQ_MASK_DP_TRANS_P0_SHIFT)
> +# define IRQ_STATUS_DP_TRANS_P0_MASK 0xf000
> +# define IRQ_STATUS_DP_TRANS_P0_SHIFT 12
> +
> +#define MTK_DP_TRANS_P0_342C (TRANS_OFFSET + 0x02C)
> +# define XTAL_FREQ_DP_TRANS_P0_DEFAULT 0x69
> +# define XTAL_FREQ_DP_TRANS_P0_MASK 0xff
> +
> +#define MTK_DP_TRANS_P0_3430 (TRANS_OFFSET + 0x030)
> +# define HPD_INT_THD_ECO_DP_TRANS_P0_MASK 0x3
> +# define HPD_INT_THD_ECO_DP_TRANS_P0_HIGH_BOUND_EXT BIT(1)
> +
> +#define MTK_DP_TRANS_P0_34A4 (TRANS_OFFSET + 0x0A4)
> +# define LANE_NUM_DP_TRANS_P0_MASK 0xc
> +# define LANE_NUM_DP_TRANS_P0_SHIFT 2
> +
> +#define MTK_DP_TRANS_P0_3540 (TRANS_OFFSET + 0x140)
> +# define FEC_EN_DP_TRANS_P0_MASK 0x1
> +# define FEC_EN_DP_TRANS_P0_SHIFT 0
> +# define FEC_CLOCK_EN_MODE_DP_TRANS_P0_MASK 0x8
> +# define FEC_CLOCK_EN_MODE_DP_TRANS_P0_SHIFT 3
> +
> +#define MTK_DP_TRANS_P0_3580 (TRANS_OFFSET + 0x180)
> +# define POST_MISC_DATA_LANE0_OV_DP_TRANS_P0_MASK 0x100
> +# define POST_MISC_DATA_LANE1_OV_DP_TRANS_P0_MASK 0x200
> +# define POST_MISC_DATA_LANE2_OV_DP_TRANS_P0_MASK 0x400
> +# define POST_MISC_DATA_LANE3_OV_DP_TRANS_P0_MASK 0x800
> +
> +#define MTK_DP_TRANS_P0_35C4 (TRANS_OFFSET + 0x1C4)
> +# define SW_IRQ_MASK_DP_TRANS_P0_MASK 0xffff
> +
> +#define MTK_DP_TRANS_P0_35C8 (TRANS_OFFSET + 0x1C8)
> +# define SW_IRQ_CLR_DP_TRANS_P0_MASK 0xffff
> +
> +# define SW_IRQ_STATUS_DP_TRANS_P0_MASK 0xffff
> +# define SW_IRQ_STATUS_DP_TRANS_P0_SHIFT 0
> +
> +#define MTK_DP_TRANS_P0_35D0 (TRANS_OFFSET + 0x1D0)
> +# define SW_IRQ_FINAL_STATUS_DP_TRANS_P0_MASK 0xffff
> +
> +#define MTK_DP_TRANS_P0_35F0 (TRANS_OFFSET + 0x1F0)
> +
> +#define MTK_DP_AUX_P0_360C (AUX_OFFSET + 0x00C)
> +# define AUX_TIMEOUT_THR_AUX_TX_P0_MASK 0x1fff
> +
> +#define MTK_DP_AUX_P0_3614 (AUX_OFFSET + 0x014)
> +# define AUX_RX_UI_CNT_THR_AUX_TX_P0_MASK 0x7f
> +# define AUX_RX_UI_CNT_THR_AUX_TX_P0_SHIFT 0
> +
> +#define MTK_DP_AUX_P0_3618 (AUX_OFFSET + 0x018)
> +# define AUX_RX_FIFO_FULL_AUX_TX_P0_MASK 0x200
> +# define AUX_RX_FIFO_WRITE_POINTER_AUX_TX_P0_MASK 0xf
> +
> +#define MTK_DP_AUX_P0_3620 (AUX_OFFSET + 0x020)
> +# define AUX_RD_MODE_AUX_TX_P0_MASK 0x200
> +# define AUX_RX_FIFO_READ_PULSE_TX_P0_MASK 0x100
> +# define AUX_RX_FIFO_R_PULSE_TX_P0_SHIFT 8
> +# define AUX_RX_FIFO_READ_DATA_AUX_TX_P0_MASK 0xff
> +# define AUX_RX_FIFO_READ_DATA_AUX_TX_P0_SHIFT 0
> +
> +#define MTK_DP_AUX_P0_3624 (AUX_OFFSET + 0x024)
> +# define AUX_RX_REPLY_COMMAND_AUX_TX_P0_MASK 0xf
> +
> +#define MTK_DP_AUX_P0_3628 (AUX_OFFSET + 0x028)
> +# define AUX_RX_PHY_STATE_AUX_TX_P0_MASK 0x3ff
> +# define AUX_RX_PHY_STATE_AUX_TX_P0_SHIFT 0
> +# define AUX_RX_PHY_STATE_AUX_TX_P0_RX_IDLE (BIT(1) << AUX_RX_PHY_STATE_AUX_TX_P0_SHIFT)
> +
> +#define MTK_DP_AUX_P0_362C (AUX_OFFSET + 0x02C)
> +# define AUX_NO_LENGTH_AUX_TX_P0_MASK 0x1
> +# define AUX_NO_LENGTH_AUX_TX_P0_SHIFT 0
> +# define AUX_TX_AUXTX_OV_EN_AUX_TX_P0_MASK 0x2
> +# define AUX_RESERVED_RW_0_AUX_TX_P0_MASK 0xfffc
> +
> +#define MTK_DP_AUX_P0_3630 (AUX_OFFSET + 0x030)
> +# define AUX_TX_REQUEST_READY_AUX_TX_P0_MASK 0x8
> +# define AUX_TX_REQUEST_READY_AUX_TX_P0_SHIFT 3
> +
> +#define MTK_DP_AUX_P0_3634 (AUX_OFFSET + 0x034)
> +# define AUX_TX_OVER_SAMPLE_RATE_AUX_TX_P0_MASK 0xff00
> +# define AUX_TX_OVER_SAMPLE_RATE_AUX_TX_P0_SHIFT 8
> +
> +#define MTK_DP_AUX_P0_3640 (AUX_OFFSET + 0x040)
> +# define AUX_RX_RECV_COMPLETE_IRQ_TX_P0_MASK 0x40
> +# define AUX_RX_AUX_RECV_COMPLETE_IRQ_AUX_TX_P0_SHIFT 6
> +# define AUX_RX_EDID_RECV_COMPLETE_IRQ_AUX_TX_P0_SHIFT 5
> +# define AUX_RX_MCCS_RECV_COMPLETE_IRQ_AUX_TX_P0_SHIFT 4
> +# define AUX_RX_CMD_RECV_IRQ_AUX_TX_P0_SHIFT 3
> +# define AUX_RX_ADDR_RECV_IRQ_AUX_TX_P0_SHIFT 2
> +# define AUX_RX_DATA_RECV_IRQ_AUX_TX_P0_SHIFT 1
> +# define AUX_400US_TIMEOUT_IRQ_AUX_TX_P0_MASK 0x1
> +# define AUX_400US_TIMEOUT_IRQ_AUX_TX_P0_SHIFT 0
> +
> +#define MTK_DP_AUX_P0_3644 (AUX_OFFSET + 0x044)
> +# define MCU_REQUEST_COMMAND_AUX_TX_P0_MASK 0xf
> +
> +#define MTK_DP_AUX_P0_3648 (AUX_OFFSET + 0x048)
> +# define MCU_REQUEST_ADDRESS_LSB_AUX_TX_P0_MASK 0xffff
> +
> +#define MTK_DP_AUX_P0_364C (AUX_OFFSET + 0x04C)
> +# define MCU_REQUEST_ADDRESS_MSB_AUX_TX_P0_MASK 0xf
> +
> +#define MTK_DP_AUX_P0_3650 (AUX_OFFSET + 0x050)
> +# define MCU_REQ_DATA_NUM_AUX_TX_P0_MASK 0xf000
> +# define MCU_REQ_DATA_NUM_AUX_TX_P0_SHIFT 12
> +# define PHY_FIFO_RST_AUX_TX_P0_MASK 0x200
> +# define MCU_ACK_TRAN_COMPLETE_AUX_TX_P0_MASK 0x100
> +# define MCU_ACK_TRAN_COMPLETE_AUX_TX_P0_SHIFT 8
> +
> +#define MTK_DP_AUX_P0_3658 (AUX_OFFSET + 0x058)
> +# define AUX_TX_OV_EN_AUX_TX_P0_MASK 0x1
> +
> +#define MTK_DP_AUX_P0_3690 (AUX_OFFSET + 0x090)
> +# define RX_REPLY_COMPLETE_MODE_AUX_TX_P0_MASK 0x100
> +# define RX_REPLY_COMPLETE_MODE_AUX_TX_P0_SHIFT 8
> +
> +#define MTK_DP_AUX_P0_3704 (AUX_OFFSET + 0x104)
> +# define AUX_TX_FIFO_WRITE_DATA_NEW_MODE_TOGGLE_AUX_TX_P0_MASK 0x2
> +# define AUX_TX_FIFO_NEW_MODE_EN_AUX_TX_P0_MASK 0x4
> +# define AUX_TX_FIFO_NEW_MODE_EN_AUX_TX_P0_SHIFT 2
> +
> +#define MTK_DP_AUX_P0_3708 (AUX_OFFSET + 0x108)
> +
> +#define MTK_DP_AUX_P0_37C8 (AUX_OFFSET + 0x1C8)
> +# define MTK_ATOP_EN_AUX_TX_P0_MASK 0x1
> +# define MTK_ATOP_EN_AUX_TX_P0_SHIFT 0
> +
> +#define MTK_DP_TOP_PWR_STATE (TOP_OFFSET + 0x00)
> +# define DP_PWR_STATE_MASK 0x3
> +# define DP_PWR_STATE_BANDGAP 1
> +# define DP_PWR_STATE_BANDGAP_TPLL 2
> +# define DP_PWR_STATE_BANDGAP_TPLL_LANE 3
> +
> +#define MTK_DP_TOP_SWING_EMP (TOP_OFFSET + 0x04)
> +# define DP_TX0_VOLT_SWING_MASK 0x3
> +# define DP_TX0_VOLT_SWING_SHIFT 0
> +# define DP_TX0_PRE_EMPH_MASK 0xc
> +# define DP_TX0_PRE_EMPH_SHIFT 2
> +# define DP_TX1_VOLT_SWING_MASK 0x300
> +# define DP_TX1_VOLT_SWING_SHIFT 8
> +# define DP_TX1_PRE_EMPH_MASK 0xc00
> +# define DP_TX2_VOLT_SWING_MASK 0x30000
> +# define DP_TX2_PRE_EMPH_MASK 0xc0000
> +# define DP_TX3_VOLT_SWING_MASK 0x3000000
> +# define DP_TX3_PRE_EMPH_MASK 0xc000000
> +
> +#define MTK_DP_TOP_RESET_AND_PROBE (TOP_OFFSET + 0x20)
> +# define SW_RST_B_SHIFT 0
> +# define SW_RST_B_PHYD (BIT(4) << SW_RST_B_SHIFT)
> +
> +#define MTK_DP_TOP_IRQ_STATUS (TOP_OFFSET + 0x28)
> +# define RGS_IRQ_STATUS_SHIFT 0
> +# define RGS_IRQ_STATUS_TRANSMITTER (BIT(1) << RGS_IRQ_STATUS_SHIFT)
> +
> +#define MTK_DP_TOP_IRQ_MASK (TOP_OFFSET + 0x2C)
> +# define IRQ_MASK_AUX_TOP_IRQ BIT(2)
> +
> +#define MTK_DP_TOP_MEM_PD (TOP_OFFSET + 0x38)
> +# define MEM_ISO_EN_SHIFT 0
> +# define FUSE_SEL_SHIFT 2
> +
> +#define DP_PHY_DIG_PLL_CTL_1 0x1014
> +# define TPLL_SSC_EN BIT(3)
It seems that register 0x1000 ~ 0x1fff is to control phy and 0x2000 ~
0x4fff is to control non-phy part. For mipi and hdmi, the phy part is
an independent device [1] and the phy driver is independent [2] , so I
would like this phy to be an independent device.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/boot/dts/mediatek/mt8173.dtsi?h=v5.14
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/phy/mediatek?h=v5.14
Regards,
Chun-Kuang.
> +
> +#define DP_PHY_DIG_BIT_RATE 0x103C
> +# define BIT_RATE_RBR 0
> +# define BIT_RATE_HBR 1
> +# define BIT_RATE_HBR2 2
> +# define BIT_RATE_HBR3 3
> +
> +#define DP_PHY_DIG_SW_RST 0x1038
> +# define DP_GLB_SW_RST_PHYD BIT(0)
> +
> +#define MTK_DP_LANE0_DRIVING_PARAM_3 0x1138
> +#define MTK_DP_LANE1_DRIVING_PARAM_3 0x1238
> +#define MTK_DP_LANE2_DRIVING_PARAM_3 0x1338
> +#define MTK_DP_LANE3_DRIVING_PARAM_3 0x1438
> +# define XTP_LN_TX_LCTXC0_SW0_PRE0_DEFAULT 0x10
> +# define XTP_LN_TX_LCTXC0_SW0_PRE1_DEFAULT (0x14 << 8)
> +# define XTP_LN_TX_LCTXC0_SW0_PRE2_DEFAULT (0x18 << 16)
> +# define XTP_LN_TX_LCTXC0_SW0_PRE3_DEFAULT (0x20 << 24)
> +# define DRIVING_PARAM_3_DEFAULT (XTP_LN_TX_LCTXC0_SW0_PRE0_DEFAULT | \
> + XTP_LN_TX_LCTXC0_SW0_PRE1_DEFAULT | \
> + XTP_LN_TX_LCTXC0_SW0_PRE2_DEFAULT | \
> + XTP_LN_TX_LCTXC0_SW0_PRE3_DEFAULT)
> +
> +#define MTK_DP_LANE0_DRIVING_PARAM_4 0x113C
> +#define MTK_DP_LANE1_DRIVING_PARAM_4 0x123C
> +#define MTK_DP_LANE2_DRIVING_PARAM_4 0x133C
> +#define MTK_DP_LANE3_DRIVING_PARAM_4 0x143C
> +# define XTP_LN_TX_LCTXC0_SW1_PRE0_DEFAULT 0x18
> +# define XTP_LN_TX_LCTXC0_SW1_PRE1_DEFAULT (0x1e << 8)
> +# define XTP_LN_TX_LCTXC0_SW1_PRE2_DEFAULT (0x24 << 16)
> +# define XTP_LN_TX_LCTXC0_SW2_PRE0_DEFAULT (0x20 << 24)
> +# define DRIVING_PARAM_4_DEFAULT (XTP_LN_TX_LCTXC0_SW1_PRE0_DEFAULT | \
> + XTP_LN_TX_LCTXC0_SW1_PRE1_DEFAULT | \
> + XTP_LN_TX_LCTXC0_SW1_PRE2_DEFAULT | \
> + XTP_LN_TX_LCTXC0_SW2_PRE0_DEFAULT)
> +
> +#define MTK_DP_LANE0_DRIVING_PARAM_5 0x1140
> +#define MTK_DP_LANE1_DRIVING_PARAM_5 0x1240
> +#define MTK_DP_LANE2_DRIVING_PARAM_5 0x1340
> +#define MTK_DP_LANE3_DRIVING_PARAM_5 0x1440
> +# define XTP_LN_TX_LCTXC0_SW2_PRE1_DEFAULT 0x28
> +# define XTP_LN_TX_LCTXC0_SW3_PRE0_DEFAULT (0x30 << 8)
> +# define DRIVING_PARAM_5_DEFAULT (XTP_LN_TX_LCTXC0_SW2_PRE1_DEFAULT | \
> + XTP_LN_TX_LCTXC0_SW3_PRE0_DEFAULT)
> +
> +#define MTK_DP_LANE0_DRIVING_PARAM_6 0x1144
> +#define MTK_DP_LANE1_DRIVING_PARAM_6 0x1244
> +#define MTK_DP_LANE2_DRIVING_PARAM_6 0x1344
> +#define MTK_DP_LANE3_DRIVING_PARAM_6 0x1444
> +# define XTP_LN_TX_LCTXCP1_SW0_PRE0_DEFAULT 0x00
> +# define XTP_LN_TX_LCTXCP1_SW0_PRE1_DEFAULT (0x04 << 8)
> +# define XTP_LN_TX_LCTXCP1_SW0_PRE2_DEFAULT (0x08 << 16)
> +# define XTP_LN_TX_LCTXCP1_SW0_PRE3_DEFAULT (0x10 << 24)
> +# define DRIVING_PARAM_6_DEFAULT (XTP_LN_TX_LCTXCP1_SW0_PRE0_DEFAULT | \
> + XTP_LN_TX_LCTXCP1_SW0_PRE1_DEFAULT | \
> + XTP_LN_TX_LCTXCP1_SW0_PRE2_DEFAULT | \
> + XTP_LN_TX_LCTXCP1_SW0_PRE3_DEFAULT)
> +
> +#define MTK_DP_LANE0_DRIVING_PARAM_7 0x1148
> +#define MTK_DP_LANE1_DRIVING_PARAM_7 0x1248
> +#define MTK_DP_LANE2_DRIVING_PARAM_7 0x1348
> +#define MTK_DP_LANE3_DRIVING_PARAM_7 0x1448
> +# define XTP_LN_TX_LCTXCP1_SW1_PRE0_DEFAULT 0x00
> +# define XTP_LN_TX_LCTXCP1_SW1_PRE1_DEFAULT (0x06 << 8)
> +# define XTP_LN_TX_LCTXCP1_SW1_PRE2_DEFAULT (0x0c << 16)
> +# define XTP_LN_TX_LCTXCP1_SW2_PRE0_DEFAULT (0x00 << 24)
> +# define DRIVING_PARAM_7_DEFAULT (XTP_LN_TX_LCTXCP1_SW1_PRE0_DEFAULT | \
> + XTP_LN_TX_LCTXCP1_SW1_PRE1_DEFAULT | \
> + XTP_LN_TX_LCTXCP1_SW1_PRE2_DEFAULT | \
> + XTP_LN_TX_LCTXCP1_SW2_PRE0_DEFAULT)
> +
> +#define MTK_DP_LANE0_DRIVING_PARAM_8 0x114C
> +#define MTK_DP_LANE1_DRIVING_PARAM_8 0x124C
> +#define MTK_DP_LANE2_DRIVING_PARAM_8 0x134C
> +#define MTK_DP_LANE3_DRIVING_PARAM_8 0x144C
> +# define XTP_LN_TX_LCTXCP1_SW2_PRE1_DEFAULT 0x08
> +# define XTP_LN_TX_LCTXCP1_SW3_PRE0_DEFAULT (0x00 << 8)
> +# define DRIVING_PARAM_8_DEFAULT (XTP_LN_TX_LCTXCP1_SW2_PRE1_DEFAULT | \
> + XTP_LN_TX_LCTXCP1_SW3_PRE0_DEFAULT)
> +
> +#endif /*_MTK_DP_REG_H_*/
> --
> 2.33.0
>
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