rockchip: video: Add a display driver for rockchip eDP

Some Rockchip SoCs support embedded DisplayPort output. Add a display driver
for this so that these displays can be used on supported boards.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 636 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-rockchip/edp_rk3288.h b/arch/arm/include/asm/arch-rockchip/edp_rk3288.h
new file mode 100644
index 0000000000..a9e2761036
--- /dev/null
+++ b/arch/arm/include/asm/arch-rockchip/edp_rk3288.h
@@ -0,0 +1,636 @@
+/*
+ * Copyright (c) 2015 Google, Inc
+ * Copyright 2014 Rockchip Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_EDP_H
+#define _ASM_ARCH_EDP_H
+
+struct rk3288_edp {
+	u8	res0[0x10];
+	u32	dp_tx_version;
+	u8	res1[0x4];
+	u32	func_en_1;
+	u32	func_en_2;
+	u32	video_ctl_1;
+	u32	video_ctl_2;
+	u32	video_ctl_3;
+	u32	video_ctl_4;
+	u8	res2[0xc];
+	u32	video_ctl_8;
+	u8	res3[0x4];
+	u32	video_ctl_10;
+	u32	total_line_l;
+	u32	total_line_h;
+	u32	active_line_l;
+	u32	active_line_h;
+	u32	v_f_porch;
+	u32	vsync;
+	u32	v_b_porch;
+	u32	total_pixel_l;
+	u32	total_pixel_h;
+	u32	active_pixel_l;
+	u32	active_pixel_h;
+	u32	h_f_porch_l;
+	u32	h_f_porch_h;
+	u32	hsync_l;
+	u32	hysnc_h;
+	u32	h_b_porch_l;
+	u32	h_b_porch_h;
+	u32	vid_status;
+	u32	total_line_sta_l;
+	u32	total_line_sta_h;
+	u32	active_line_sta_l;
+	u32	active_line_sta_h;
+	u32	v_f_porch_sta;
+	u32	vsync_sta;
+	u32	v_b_porch_sta;
+	u32	total_pixel_sta_l;
+	u32	total_pixel_sta_h;
+	u32	active_pixel_sta_l;
+	u32	active_pixel_sta_h;
+	u32	h_f_porch_sta_l;
+	u32	h_f_porch_sta_h;
+	u32	hsync_sta_l;
+	u32	hsync_sta_h;
+	u32	h_b_porch_sta_l;
+	u32	h_b_porch__sta_h;
+	u8      res4[0x28];
+	u32	pll_reg_1;
+	u8	res5[4];
+	u32	ssc_reg;
+	u8	res6[0xc];
+	u32	tx_common;
+	u32	tx_common2;
+	u8	res7[0x4];
+	u32	dp_aux;
+	u32	dp_bias;
+	u32	dp_test;
+	u32	dp_pd;
+	u32	dp_reserv1;
+	u32	dp_reserv2;
+	u8	res8[0x224];
+	u32	lane_map;
+	u8	res9[0x14];
+	u32	analog_ctl_2;
+	u8	res10[0x48];
+	u32	int_state;
+	u32	common_int_sta_1;
+	u32	common_int_sta_2;
+	u32	common_int_sta_3;
+	u32	common_int_sta_4;
+	u32	spdif_biphase_int_sta;
+	u8	res11[0x4];
+	u32	dp_int_sta;
+	u32	common_int_mask_1;
+	u32	common_int_mask_2;
+	u32	common_int_mask_3;
+	u32	common_int_mask_4;
+	u8	res12[0x08];
+	u32	int_sta_mask;
+	u32	int_ctl;
+	u8	res13[0x200];
+	u32	sys_ctl_1;
+	u32	sys_ctl_2;
+	u32	sys_ctl_3;
+	u32	sys_ctl_4;
+	u32	dp_vid_ctl;
+	u8	res14[0x4];
+	u32	dp_aud_ctl;
+	u8	res15[0x24];
+	u32	pkt_send_ctl;
+	u8	res16[0x4];
+	u32	dp_hdcp_ctl;
+	u8	res17[0x34];
+	u32	link_bw_set;
+	u32	lane_count_set;
+	u32	dp_training_ptn_set;
+	u32	ln_link_trn_ctl[4];
+	u8	res18[0x4];
+	u32	dp_hw_link_training;
+	u8	res19[0x1c];
+	u32	dp_debug_ctl;
+	u32	hpd_deglitch_l;
+	u32	hpd_deglitch_h;
+	u8	res20[0x14];
+	u32	dp_link_debug_ctl;
+	u8	res21[0x1c];
+	u32	m_vid_0;
+	u32	m_vid_1;
+	u32	m_vid_2;
+	u32	n_vid_0;
+	u32	n_vid_1;
+	u32	n_vid_2;
+	u32	m_vid_mon;
+	u8	res22[0x14];
+	u32	dp_video_fifo_thrd;
+	u8	res23[0x8];
+	u32	dp_audio_margin;
+	u8	res24[0x20];
+	u32	dp_m_cal_ctl;
+	u32	m_vid_gen_filter_th;
+	u8	res25[0x10];
+	u32	m_aud_gen_filter_th;
+	u8	res26[0x4];
+	u32	aux_ch_sta;
+	u32	aux_err_num;
+	u32	aux_ch_defer_dtl;
+	u32	aux_rx_comm;
+	u32	buf_data_ctl;
+	u32	aux_ch_ctl_1;
+	u32	aux_addr_7_0;
+	u32	aux_addr_15_8;
+	u32	aux_addr_19_16;
+	u32	aux_ch_ctl_2;
+	u8	res27[0x18];
+	u32	buf_data[16];
+	u32	soc_general_ctl;
+	u8	res29[0x1e0];
+	u32	pll_reg_2;
+	u32	pll_reg_3;
+	u32	pll_reg_4;
+	u8	res30[0x10];
+	u32	pll_reg_5;
+};
+check_member(rk3288_edp, pll_reg_5, 0xa00);
+
+/* func_en_1 */
+#define VID_CAP_FUNC_EN_N			(0x1 << 6)
+#define VID_FIFO_FUNC_EN_N			(0x1 << 5)
+#define AUD_FIFO_FUNC_EN_N			(0x1 << 4)
+#define AUD_FUNC_EN_N				(0x1 << 3)
+#define HDCP_FUNC_EN_N				(0x1 << 2)
+#define SW_FUNC_EN_N				(0x1 << 0)
+
+/* func_en_2 */
+#define SSC_FUNC_EN_N				(0x1 << 7)
+#define AUX_FUNC_EN_N				(0x1 << 2)
+#define SERDES_FIFO_FUNC_EN_N			(0x1 << 1)
+#define LS_CLK_DOMAIN_FUNC_EN_N			(0x1 << 0)
+
+/* video_ctl_1 */
+#define VIDEO_EN				(0x1 << 7)
+#define VIDEO_MUTE				(0x1 << 6)
+
+/* video_ctl_2 */
+#define IN_D_RANGE_MASK				(0x1 << 7)
+#define IN_D_RANGE_SHIFT			(7)
+#define IN_D_RANGE_CEA				(0x1 << 7)
+#define IN_D_RANGE_VESA				(0x0 << 7)
+#define IN_BPC_MASK				(0x7 << 4)
+#define IN_BPC_SHIFT				(4)
+#define IN_BPC_12_BITS				(0x3 << 4)
+#define IN_BPC_10_BITS				(0x2 << 4)
+#define IN_BPC_8_BITS				(0x1 << 4)
+#define IN_BPC_6_BITS				(0x0 << 4)
+#define IN_COLOR_F_MASK				(0x3 << 0)
+#define IN_COLOR_F_SHIFT			(0)
+#define IN_COLOR_F_YCBCR444			(0x2 << 0)
+#define IN_COLOR_F_YCBCR422			(0x1 << 0)
+#define IN_COLOR_F_RGB				(0x0 << 0)
+
+/* video_ctl_3 */
+#define IN_YC_COEFFI_MASK			(0x1 << 7)
+#define IN_YC_COEFFI_SHIFT			(7)
+#define IN_YC_COEFFI_ITU709			(0x1 << 7)
+#define IN_YC_COEFFI_ITU601			(0x0 << 7)
+#define VID_CHK_UPDATE_TYPE_MASK		(0x1 << 4)
+#define VID_CHK_UPDATE_TYPE_SHIFT		(4)
+#define VID_CHK_UPDATE_TYPE_1			(0x1 << 4)
+#define VID_CHK_UPDATE_TYPE_0			(0x0 << 4)
+
+/* video_ctl_4 */
+#define BIST_EN					(0x1 << 3)
+#define BIST_WH_64				(0x1 << 2)
+#define BIST_WH_32				(0x0 << 2)
+#define BIST_TYPE_COLR_BAR			(0x0 << 0)
+#define BIST_TYPE_GRAY_BAR			(0x1 << 0)
+#define BIST_TYPE_MOBILE_BAR			(0x2 << 0)
+
+/* video_ctl_8 */
+#define VID_HRES_TH(x)				(((x) & 0xf) << 4)
+#define VID_VRES_TH(x)				(((x) & 0xf) << 0)
+
+/* video_ctl_10 */
+#define F_SEL					(0x1 << 4)
+#define INTERACE_SCAN_CFG			(0x1 << 2)
+#define INTERACD_SCAN_CFG_OFFSET		2
+#define VSYNC_POLARITY_CFG			(0x1 << 1)
+#define VSYNC_POLARITY_CFG_OFFSET		1
+#define HSYNC_POLARITY_CFG			(0x1 << 0)
+#define HSYNC_POLARITY_CFG_OFFSET		0
+
+/* dp_pd */
+#define PD_INC_BG				(0x1 << 7)
+#define PD_EXP_BG				(0x1 << 6)
+#define PD_AUX					(0x1 << 5)
+#define PD_PLL					(0x1 << 4)
+#define PD_CH3					(0x1 << 3)
+#define PD_CH2					(0x1 << 2)
+#define PD_CH1					(0x1 << 1)
+#define PD_CH0					(0x1 << 0)
+
+/* pll_reg_1 */
+#define REF_CLK_24M				(0x1 << 1)
+#define REF_CLK_27M				(0x0 << 1)
+
+/* line_map */
+#define LANE3_MAP_LOGIC_LANE_0			(0x0 << 6)
+#define LANE3_MAP_LOGIC_LANE_1			(0x1 << 6)
+#define LANE3_MAP_LOGIC_LANE_2			(0x2 << 6)
+#define LANE3_MAP_LOGIC_LANE_3			(0x3 << 6)
+#define LANE2_MAP_LOGIC_LANE_0			(0x0 << 4)
+#define LANE2_MAP_LOGIC_LANE_1			(0x1 << 4)
+#define LANE2_MAP_LOGIC_LANE_2			(0x2 << 4)
+#define LANE2_MAP_LOGIC_LANE_3			(0x3 << 4)
+#define LANE1_MAP_LOGIC_LANE_0			(0x0 << 2)
+#define LANE1_MAP_LOGIC_LANE_1			(0x1 << 2)
+#define LANE1_MAP_LOGIC_LANE_2			(0x2 << 2)
+#define LANE1_MAP_LOGIC_LANE_3			(0x3 << 2)
+#define LANE0_MAP_LOGIC_LANE_0			(0x0 << 0)
+#define LANE0_MAP_LOGIC_LANE_1			(0x1 << 0)
+#define LANE0_MAP_LOGIC_LANE_2			(0x2 << 0)
+#define LANE0_MAP_LOGIC_LANE_3			(0x3 << 0)
+
+/* analog_ctl_2 */
+#define SEL_24M					(0x1 << 3)
+
+/* common_int_sta_1 */
+#define VSYNC_DET				(0x1 << 7)
+#define PLL_LOCK_CHG				(0x1 << 6)
+#define SPDIF_ERR				(0x1 << 5)
+#define SPDIF_UNSTBL				(0x1 << 4)
+#define VID_FORMAT_CHG				(0x1 << 3)
+#define AUD_CLK_CHG				(0x1 << 2)
+#define VID_CLK_CHG				(0x1 << 1)
+#define SW_INT					(0x1 << 0)
+
+/* common_int_sta_2 */
+#define ENC_EN_CHG				(0x1 << 6)
+#define HW_BKSV_RDY				(0x1 << 3)
+#define HW_SHA_DONE				(0x1 << 2)
+#define HW_AUTH_STATE_CHG			(0x1 << 1)
+#define HW_AUTH_DONE				(0x1 << 0)
+
+/* common_int_sta_3 */
+#define AFIFO_UNDER				(0x1 << 7)
+#define AFIFO_OVER				(0x1 << 6)
+#define R0_CHK_FLAG				(0x1 << 5)
+
+/* common_int_sta_4 */
+#define PSR_ACTIVE				(0x1 << 7)
+#define PSR_INACTIVE				(0x1 << 6)
+#define SPDIF_BI_PHASE_ERR			(0x1 << 5)
+#define HOTPLUG_CHG				(0x1 << 2)
+#define HPD_LOST				(0x1 << 1)
+#define PLUG					(0x1 << 0)
+
+/* dp_int_sta */
+#define INT_HPD					(0x1 << 6)
+#define HW_LT_DONE				(0x1 << 5)
+#define SINK_LOST				(0x1 << 3)
+#define LINK_LOST				(0x1 << 2)
+#define RPLY_RECEIV				(0x1 << 1)
+#define AUX_ERR					(0x1 << 0)
+
+/* int_ctl */
+#define SOFT_INT_CTRL				(0x1 << 2)
+#define INT_POL					(0x1 << 0)
+
+/* sys_ctl_1 */
+#define DET_STA					(0x1 << 2)
+#define FORCE_DET				(0x1 << 1)
+#define DET_CTRL				(0x1 << 0)
+
+/* sys_ctl_2 */
+#define CHA_CRI(x)				(((x) & 0xf) << 4)
+#define CHA_STA					(0x1 << 2)
+#define FORCE_CHA				(0x1 << 1)
+#define CHA_CTRL				(0x1 << 0)
+
+/* sys_ctl_3 */
+#define HPD_STATUS				(0x1 << 6)
+#define F_HPD					(0x1 << 5)
+#define HPD_CTRL				(0x1 << 4)
+#define HDCP_RDY				(0x1 << 3)
+#define STRM_VALID				(0x1 << 2)
+#define F_VALID					(0x1 << 1)
+#define VALID_CTRL				(0x1 << 0)
+
+/* sys_ctl_4 */
+#define FIX_M_AUD				(0x1 << 4)
+#define ENHANCED				(0x1 << 3)
+#define FIX_M_VID				(0x1 << 2)
+#define M_VID_UPDATE_CTRL			(0x3 << 0)
+
+/* pll_reg_2 */
+#define LDO_OUTPUT_V_SEL_145			(2 << 6)
+#define KVCO_DEFALUT				(1 << 4)
+#define CHG_PUMP_CUR_SEL_5US			(1 << 2)
+#define V2L_CUR_SEL_1MA				(1 << 0)
+
+/* pll_reg_3 */
+#define LOCK_DET_CNT_SEL_256			(2 << 5)
+#define LOOP_FILTER_RESET			(0 << 4)
+#define PALL_SSC_RESET				(0 << 3)
+#define LOCK_DET_BYPASS				(0 << 2)
+#define PLL_LOCK_DET_MODE			(0 << 1)
+#define PLL_LOCK_DET_FORCE			(0 << 0)
+
+/* pll_reg_5 */
+#define REGULATOR_V_SEL_950MV			(2 << 4)
+#define STANDBY_CUR_SEL				(0 << 3)
+#define CHG_PUMP_INOUT_CTRL_1200MV		(1 << 1)
+#define CHG_PUMP_INPUT_CTRL_OP			(0 << 0)
+
+/* ssc_reg */
+#define SSC_OFFSET				(0 << 6)
+#define SSC_MODE				(1 << 4)
+#define SSC_DEPTH				(9 << 0)
+
+/* tx_common */
+#define TX_SWING_PRE_EMP_MODE			(1 << 7)
+#define PRE_DRIVER_PW_CTRL1			(0 << 5)
+#define LP_MODE_CLK_REGULATOR			(0 << 4)
+#define RESISTOR_MSB_CTRL			(0 << 3)
+#define RESISTOR_CTRL				(7 << 0)
+
+/* dp_aux */
+#define DP_AUX_COMMON_MODE			(0 << 4)
+#define DP_AUX_EN				(0 << 3)
+#define AUX_TERM_50OHM				(3 << 0)
+
+/* dp_bias */
+#define DP_BG_OUT_SEL				(4 << 4)
+#define DP_DB_CUR_CTRL				(0 << 3)
+#define DP_BG_SEL				(1 << 2)
+#define DP_RESISTOR_TUNE_BG			(2 << 0)
+
+/* dp_reserv2 */
+#define CH1_CH3_SWING_EMP_CTRL			(5 << 4)
+#define CH0_CH2_SWING_EMP_CTRL			(5 << 0)
+
+/* dp_training_ptn_set */
+#define SCRAMBLING_DISABLE			(0x1 << 5)
+#define SCRAMBLING_ENABLE			(0x0 << 5)
+#define LINK_QUAL_PATTERN_SET_MASK		(0x7 << 2)
+#define LINK_QUAL_PATTERN_SET_HBR2		(0x5 << 2)
+#define LINK_QUAL_PATTERN_SET_80BIT		(0x4 << 2)
+#define LINK_QUAL_PATTERN_SET_PRBS7		(0x3 << 2)
+#define LINK_QUAL_PATTERN_SET_D10_2		(0x1 << 2)
+#define LINK_QUAL_PATTERN_SET_DISABLE		(0x0 << 2)
+#define SW_TRAINING_PATTERN_SET_MASK		(0x3 << 0)
+#define SW_TRAINING_PATTERN_SET_PTN2		(0x2 << 0)
+#define SW_TRAINING_PATTERN_SET_PTN1		(0x1 << 0)
+#define SW_TRAINING_PATTERN_SET_DISABLE		(0x0 << 0)
+
+/* dp_hw_link_training_ctl */
+#define HW_LT_ERR_CODE_MASK			0x70
+#define HW_LT_ERR_CODE_SHIFT			4
+#define HW_LT_EN				(0x1 << 0)
+
+/* dp_debug_ctl */
+#define PLL_LOCK				(0x1 << 4)
+#define F_PLL_LOCK				(0x1 << 3)
+#define PLL_LOCK_CTRL				(0x1 << 2)
+#define POLL_EN					(0x1 << 1)
+#define PN_INV					(0x1 << 0)
+
+/* aux_ch_sta */
+#define AUX_BUSY				(0x1 << 4)
+#define AUX_STATUS_MASK				(0xf << 0)
+
+/* aux_ch_defer_ctl */
+#define DEFER_CTRL_EN				(0x1 << 7)
+#define DEFER_COUNT(x)				(((x) & 0x7f) << 0)
+
+/* aux_rx_comm */
+#define AUX_RX_COMM_I2C_DEFER			(0x2 << 2)
+#define AUX_RX_COMM_AUX_DEFER			(0x2 << 0)
+
+/* buffer_data_ctl */
+#define BUF_CLR					(0x1 << 7)
+#define BUF_HAVE_DATA				(0x1 << 4)
+#define BUF_DATA_COUNT(x)			(((x) & 0xf) << 0)
+
+/* aux_ch_ctl_1 */
+#define AUX_LENGTH(x)				(((x - 1) & 0xf) << 4)
+#define AUX_TX_COMM_MASK			(0xf << 0)
+#define AUX_TX_COMM_DP_TRANSACTION		(0x1 << 3)
+#define AUX_TX_COMM_I2C_TRANSACTION		(0x0 << 3)
+#define AUX_TX_COMM_MOT				(0x1 << 2)
+#define AUX_TX_COMM_WRITE			(0x0 << 0)
+#define AUX_TX_COMM_READ			(0x1 << 0)
+
+/* aux_ch_ctl_2 */
+#define PD_AUX_IDLE				(0x1 << 3)
+#define ADDR_ONLY				(0x1 << 1)
+#define AUX_EN					(0x1 << 0)
+
+/* tx_sw_reset */
+#define RST_DP_TX				(0x1 << 0)
+
+/* analog_ctl_1 */
+#define TX_TERMINAL_CTRL_50_OHM			(0x1 << 4)
+
+/* analog_ctl_3 */
+#define DRIVE_DVDD_BIT_1_0625V			(0x4 << 5)
+#define VCO_BIT_600_MICRO			(0x5 << 0)
+
+/* pll_filter_ctl_1 */
+#define PD_RING_OSC				(0x1 << 6)
+#define AUX_TERMINAL_CTRL_37_5_OHM		(0x0 << 4)
+#define AUX_TERMINAL_CTRL_45_OHM		(0x1 << 4)
+#define AUX_TERMINAL_CTRL_50_OHM		(0x2 << 4)
+#define AUX_TERMINAL_CTRL_65_OHM		(0x3 << 4)
+#define TX_CUR1_2X				(0x1 << 2)
+#define TX_CUR_16_MA				(0x3 << 0)
+
+/* Definition for DPCD Register */
+#define DPCD_DPCD_REV				(0x0000)
+#define DPCD_MAX_LINK_RATE			(0x0001)
+#define DPCD_MAX_LANE_COUNT			(0x0002)
+#define DP_MAX_LANE_COUNT_MASK			0x1f
+#define DP_TPS3_SUPPORTED			(1 << 6)
+#define DP_ENHANCED_FRAME_CAP			(1 << 7)
+
+#define DPCD_LINK_BW_SET			(0x0100)
+#define DPCD_LANE_COUNT_SET			(0x0101)
+
+#define DPCD_TRAINING_PATTERN_SET		(0x0102)
+#define DP_TRAINING_PATTERN_DISABLE		0
+#define DP_TRAINING_PATTERN_1			1
+#define DP_TRAINING_PATTERN_2			2
+#define DP_TRAINING_PATTERN_3			3
+#define DP_TRAINING_PATTERN_MASK		0x3
+
+#define DPCD_TRAINING_LANE0_SET			(0x0103)
+#define DP_TRAIN_VOLTAGE_SWING_MASK		0x3
+#define DP_TRAIN_VOLTAGE_SWING_SHIFT		0
+#define DP_TRAIN_MAX_SWING_REACHED		(1 << 2)
+#define DP_TRAIN_VOLTAGE_SWING_400		(0 << 0)
+#define DP_TRAIN_VOLTAGE_SWING_600		(1 << 0)
+#define DP_TRAIN_VOLTAGE_SWING_800		(2 << 0)
+#define DP_TRAIN_VOLTAGE_SWING_1200		(3 << 0)
+
+#define DP_TRAIN_PRE_EMPHASIS_MASK		(3 << 3)
+#define DP_TRAIN_PRE_EMPHASIS_0			(0 << 3)
+#define DP_TRAIN_PRE_EMPHASIS_3_5		(1 << 3)
+#define DP_TRAIN_PRE_EMPHASIS_6			(2 << 3)
+#define DP_TRAIN_PRE_EMPHASIS_9_5		(3 << 3)
+
+#define DP_TRAIN_PRE_EMPHASIS_SHIFT		3
+#define DP_TRAIN_MAX_PRE_EMPHASIS_REACHED	(1 << 5)
+
+#define DPCD_LANE0_1_STATUS			(0x0202)
+#define DPCD_LANE2_3_STATUS			(0x0203)
+#define DP_LANE_CR_DONE				(1 << 0)
+#define DP_LANE_CHANNEL_EQ_DONE			(1 << 1)
+#define DP_LANE_SYMBOL_LOCKED			(1 << 2)
+#define DP_CHANNEL_EQ_BITS			(DP_LANE_CR_DONE |\
+						DP_LANE_CHANNEL_EQ_DONE |\
+						DP_LANE_SYMBOL_LOCKED)
+
+#define DPCD_LANE_ALIGN_STATUS_UPDATED		(0x0204)
+#define DP_INTERLANE_ALIGN_DONE			(1 << 0)
+#define DP_DOWNSTREAM_PORT_STATUS_CHANGED	(1 << 6)
+#define DP_LINK_STATUS_UPDATED			(1 << 7)
+
+#define DPCD_ADJUST_REQUEST_LANE0_1		(0x0206)
+#define DPCD_ADJUST_REQUEST_LANE2_3		(0x0207)
+#define DP_ADJUST_VOLTAGE_SWING_LANE0_MASK	0x03
+#define DP_ADJUST_VOLTAGE_SWING_LANE0_SHIFT	0
+#define DP_ADJUST_PRE_EMPHASIS_LANE0_MASK	0x0c
+#define DP_ADJUST_PRE_EMPHASIS_LANE0_SHIFT	2
+#define DP_ADJUST_VOLTAGE_SWING_LANE1_MASK	0x30
+#define DP_ADJUST_VOLTAGE_SWING_LANE1_SHIFT	4
+#define DP_ADJUST_PRE_EMPHASIS_LANE1_MASK	0xc0
+#define DP_ADJUST_PRE_EMPHASIS_LANE1_SHIFT	6
+
+#define DPCD_TEST_REQUEST			(0x0218)
+#define DPCD_TEST_RESPONSE			(0x0260)
+#define DPCD_TEST_EDID_CHECKSUM			(0x0261)
+#define DPCD_LINK_POWER_STATE			(0x0600)
+#define DP_SET_POWER_D0				0x1
+#define DP_SET_POWER_D3				0x2
+#define DP_SET_POWER_MASK			0x3
+
+#define AUX_ADDR_7_0(x)				(((x) >> 0) & 0xff)
+#define AUX_ADDR_15_8(x)			(((x) >> 8) & 0xff)
+#define AUX_ADDR_19_16(x)			(((x) >> 16) & 0x0f)
+
+#define STREAM_ON_TIMEOUT 100
+#define PLL_LOCK_TIMEOUT 10
+#define DP_INIT_TRIES 10
+
+#define EDID_ADDR				0x50
+#define EDID_LENGTH				0x80
+#define EDID_HEADER				0x00
+#define EDID_EXTENSION_FLAG			0x7e
+
+
+enum dpcd_request {
+	DPCD_READ,
+	DPCD_WRITE,
+};
+
+enum dp_irq_type {
+	DP_IRQ_TYPE_HP_CABLE_IN,
+	DP_IRQ_TYPE_HP_CABLE_OUT,
+	DP_IRQ_TYPE_HP_CHANGE,
+	DP_IRQ_TYPE_UNKNOWN,
+};
+
+enum color_coefficient {
+	COLOR_YCBCR601,
+	COLOR_YCBCR709
+};
+
+enum dynamic_range {
+	VESA,
+	CEA
+};
+
+enum clock_recovery_m_value_type {
+	CALCULATED_M,
+	REGISTER_M
+};
+
+enum video_timing_recognition_type {
+	VIDEO_TIMING_FROM_CAPTURE,
+	VIDEO_TIMING_FROM_REGISTER
+};
+
+enum pattern_set {
+	PRBS7,
+	D10_2,
+	TRAINING_PTN1,
+	TRAINING_PTN2,
+	DP_NONE
+};
+
+enum color_space {
+	CS_RGB,
+	CS_YCBCR422,
+	CS_YCBCR444
+};
+
+enum color_depth {
+	COLOR_6,
+	COLOR_8,
+	COLOR_10,
+	COLOR_12
+};
+
+enum link_rate_type {
+	LINK_RATE_1_62GBPS = 0x06,
+	LINK_RATE_2_70GBPS = 0x0a
+};
+
+enum link_lane_count_type {
+	LANE_CNT1 = 1,
+	LANE_CNT2 = 2,
+	LANE_CNT4 = 4
+};
+
+enum link_training_state {
+	LT_START,
+	LT_CLK_RECOVERY,
+	LT_EQ_TRAINING,
+	FINISHED,
+	FAILED
+};
+
+enum voltage_swing_level {
+	VOLTAGE_LEVEL_0,
+	VOLTAGE_LEVEL_1,
+	VOLTAGE_LEVEL_2,
+	VOLTAGE_LEVEL_3,
+};
+
+enum pre_emphasis_level {
+	PRE_EMPHASIS_LEVEL_0,
+	PRE_EMPHASIS_LEVEL_1,
+	PRE_EMPHASIS_LEVEL_2,
+	PRE_EMPHASIS_LEVEL_3,
+};
+
+enum analog_power_block {
+	AUX_BLOCK,
+	CH0_BLOCK,
+	CH1_BLOCK,
+	CH2_BLOCK,
+	CH3_BLOCK,
+	ANALOG_TOTAL,
+	POWER_ALL
+};
+
+struct link_train {
+	unsigned char revision;
+	u8 link_rate;
+	u8 lane_count;
+};
+
+#endif