rockchip: video: Add a display driver for rockchip HDMI

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

Unfortunately this driver is not fully functional. It cannot reliably read
EDID information over HDMI. This seems to be due to the clocks being
incorrect - the I2C bus speed appears to be up to 100x slower than the
clock settings indicate. The root cause may be in the clock logic.

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

1 files changed, 456 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-rockchip/hdmi_rk3288.h b/arch/arm/include/asm/arch-rockchip/hdmi_rk3288.h
new file mode 100644
index 0000000000..0b51d40882
--- /dev/null
+++ b/arch/arm/include/asm/arch-rockchip/hdmi_rk3288.h
@@ -0,0 +1,456 @@
+/*
+ * Copyright (c) 2015 Google, Inc
+ * Copyright 2014 Rockchip Inc.
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_HDMI_H
+#define _ASM_ARCH_HDMI_H
+
+
+#define HDMI_EDID_BLOCK_SIZE            128
+
+struct rk3288_hdmi {
+	u32 reserved0[0x100];
+	u32 ih_fc_stat0;
+	u32 ih_fc_stat1;
+	u32 ih_fc_stat2;
+	u32 ih_as_stat0;
+	u32 ih_phy_stat0;
+	u32 ih_i2cm_stat0;
+	u32 ih_cec_stat0;
+	u32 ih_vp_stat0;
+	u32 ih_i2cmphy_stat0;
+	u32 ih_ahbdmaaud_stat0;
+	u32 reserved1[0x17f-0x109];
+	u32 ih_mute_fc_stat0;
+	u32 ih_mute_fc_stat1;
+	u32 ih_mute_fc_stat2;
+	u32 ih_mute_as_stat0;
+	u32 ih_mute_phy_stat0;
+	u32 ih_mute_i2cm_stat0;
+	u32 ih_mute_cec_stat0;
+	u32 ih_mute_vp_stat0;
+	u32 ih_mute_i2cmphy_stat0;
+	u32 ih_mute_ahbdmaaud_stat0;
+	u32 reserved2[0x1fe - 0x189];
+	u32 ih_mute;
+	u32 tx_invid0;
+	u32 tx_instuffing;
+	u32 tx_gydata0;
+	u32 tx_gydata1;
+	u32 tx_rcrdata0;
+	u32 tx_rcrdata1;
+	u32 tx_bcbdata0;
+	u32 tx_bcbdata1;
+	u32 reserved3[0x7ff-0x207];
+	u32 vp_status;
+	u32 vp_pr_cd;
+	u32 vp_stuff;
+	u32 vp_remap;
+	u32 vp_conf;
+	u32 vp_stat;
+	u32 vp_int;
+	u32 vp_mask;
+	u32 vp_pol;
+	u32 reserved4[0xfff-0x808];
+	u32 fc_invidconf;
+	u32 fc_inhactv0;
+	u32 fc_inhactv1;
+	u32 fc_inhblank0;
+	u32 fc_inhblank1;
+	u32 fc_invactv0;
+	u32 fc_invactv1;
+	u32 fc_invblank;
+	u32 fc_hsyncindelay0;
+	u32 fc_hsyncindelay1;
+	u32 fc_hsyncinwidth0;
+	u32 fc_hsyncinwidth1;
+	u32 fc_vsyncindelay;
+	u32 fc_vsyncinwidth;
+	u32 fc_infreq0;
+	u32 fc_infreq1;
+	u32 fc_infreq2;
+	u32 fc_ctrldur;
+	u32 fc_exctrldur;
+	u32 fc_exctrlspac;
+	u32 fc_ch0pream;
+	u32 fc_ch1pream;
+	u32 fc_ch2pream;
+	u32 fc_aviconf3;
+	u32 fc_gcp;
+	u32 fc_aviconf0;
+	u32 fc_aviconf1;
+	u32 fc_aviconf2;
+	u32 fc_avivid;
+	u32 fc_avietb0;
+	u32 fc_avietb1;
+	u32 fc_avisbb0;
+	u32 fc_avisbb1;
+	u32 fc_avielb0;
+	u32 fc_avielb1;
+	u32 fc_avisrb0;
+	u32 fc_avisrb1;
+	u32 fc_audiconf0;
+	u32 fc_audiconf1;
+	u32 fc_audiconf2;
+	u32 fc_audiconf3;
+	u32 fc_vsdieeeid0;
+	u32 fc_vsdsize;
+	u32 reserved7[0x2fff-0x102a];
+	u32 phy_conf0;
+	u32 phy_tst0;
+	u32 phy_tst1;
+	u32 phy_tst2;
+	u32 phy_stat0;
+	u32 phy_int0;
+	u32 phy_mask0;
+	u32 phy_pol0;
+	u32 reserved8[0x301f-0x3007];
+	u32 phy_i2cm_slave_addr;
+	u32 phy_i2cm_address_addr;
+	u32 phy_i2cm_datao_1_addr;
+	u32 phy_i2cm_datao_0_addr;
+	u32 phy_i2cm_datai_1_addr;
+	u32 phy_i2cm_datai_0_addr;
+	u32 phy_i2cm_operation_addr;
+	u32 phy_i2cm_int_addr;
+	u32 phy_i2cm_ctlint_addr;
+	u32 phy_i2cm_div_addr;
+	u32 phy_i2cm_softrstz_addr;
+	u32 phy_i2cm_ss_scl_hcnt_1_addr;
+	u32 phy_i2cm_ss_scl_hcnt_0_addr;
+	u32 phy_i2cm_ss_scl_lcnt_1_addr;
+	u32 phy_i2cm_ss_scl_lcnt_0_addr;
+	u32 phy_i2cm_fs_scl_hcnt_1_addr;
+	u32 phy_i2cm_fs_scl_hcnt_0_addr;
+	u32 phy_i2cm_fs_scl_lcnt_1_addr;
+	u32 phy_i2cm_fs_scl_lcnt_0_addr;
+	u32 reserved9[0x30ff-0x3032];
+	u32 aud_conf0;
+	u32 aud_conf1;
+	u32 aud_int;
+	u32 aud_conf2;
+	u32 aud_int1;
+	u32 reserved32[0x31ff-0x3104];
+	u32 aud_n1;
+	u32 aud_n2;
+	u32 aud_n3;
+	u32 aud_cts1;
+	u32 aud_cts2;
+	u32 aud_cts3;
+	u32 aud_inputclkfs;
+	u32 reserved12[0x3fff-0x3206];
+	u32 mc_sfrdiv;
+	u32 mc_clkdis;
+	u32 mc_swrstz;
+	u32 mc_opctrl;
+	u32 mc_flowctrl;
+	u32 mc_phyrstz;
+	u32 mc_lockonclock;
+	u32 mc_heacphy_rst;
+	u32 reserved13[0x40ff-0x4007];
+	u32 csc_cfg;
+	u32 csc_scale;
+	struct {
+		u32 msb;
+		u32 lsb;
+	} csc_coef[3][4];
+	u32 reserved17[0x7dff-0x4119];
+	u32 i2cm_slave;
+	u32 i2c_address;
+	u32 i2cm_datao;
+	u32 i2cm_datai;
+	u32 i2cm_operation;
+	u32 i2cm_int;
+	u32 i2cm_ctlint;
+	u32 i2cm_div;
+	u32 i2cm_segaddr;
+	u32 i2cm_softrstz;
+	u32 i2cm_segptr;
+	u32 i2cm_ss_scl_hcnt_1_addr;
+	u32 i2cm_ss_scl_hcnt_0_addr;
+	u32 i2cm_ss_scl_lcnt_1_addr;
+	u32 i2cm_ss_scl_lcnt_0_addr;
+	u32 i2cm_fs_scl_hcnt_1_addr;
+	u32 i2cm_fs_scl_hcnt_0_addr;
+	u32 i2cm_fs_scl_lcnt_1_addr;
+	u32 i2cm_fs_scl_lcnt_0_addr;
+	u32 reserved18[0x7e1f-0x7e12];
+	u32 i2cm_buf0;
+};
+check_member(rk3288_hdmi, i2cm_buf0, 0x1f880);
+
+enum {
+	/* HDMI PHY registers define */
+	PHY_OPMODE_PLLCFG = 0x06,
+	PHY_CKCALCTRL = 0x05,
+	PHY_CKSYMTXCTRL = 0x09,
+	PHY_VLEVCTRL = 0x0e,
+	PHY_PLLCURRCTRL = 0x10,
+	PHY_PLLPHBYCTRL = 0x13,
+	PHY_PLLGMPCTRL = 0x15,
+	PHY_PLLCLKBISTPHASE = 0x17,
+	PHY_TXTERM = 0x19,
+
+	/* ih_phy_stat0 field values */
+	HDMI_IH_PHY_STAT0_HPD = 0x1,
+
+	/* ih_mute field values */
+	HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT = 0x2,
+	HDMI_IH_MUTE_MUTE_ALL_INTERRUPT = 0x1,
+
+	/* tx_invid0 field values */
+	HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_DISABLE = 0x00,
+	HDMI_TX_INVID0_VIDEO_MAPPING_MASK = 0x1f,
+	HDMI_TX_INVID0_VIDEO_MAPPING_OFFSET = 0,
+
+	/* tx_instuffing field values */
+	HDMI_TX_INSTUFFING_BDBDATA_STUFFING_ENABLE = 0x4,
+	HDMI_TX_INSTUFFING_RCRDATA_STUFFING_ENABLE = 0x2,
+	HDMI_TX_INSTUFFING_GYDATA_STUFFING_ENABLE = 0x1,
+
+	/* vp_pr_cd field values */
+	HDMI_VP_PR_CD_COLOR_DEPTH_MASK = 0xf0,
+	HDMI_VP_PR_CD_COLOR_DEPTH_OFFSET = 4,
+	HDMI_VP_PR_CD_DESIRED_PR_FACTOR_MASK = 0x0f,
+	HDMI_VP_PR_CD_DESIRED_PR_FACTOR_OFFSET = 0,
+
+	/* vp_stuff field values */
+	HDMI_VP_STUFF_IDEFAULT_PHASE_MASK = 0x20,
+	HDMI_VP_STUFF_IDEFAULT_PHASE_OFFSET = 5,
+	HDMI_VP_STUFF_YCC422_STUFFING_MASK = 0x4,
+	HDMI_VP_STUFF_YCC422_STUFFING_STUFFING_MODE = 0x4,
+	HDMI_VP_STUFF_PP_STUFFING_MASK = 0x2,
+	HDMI_VP_STUFF_PP_STUFFING_STUFFING_MODE = 0x2,
+	HDMI_VP_STUFF_PR_STUFFING_MASK = 0x1,
+	HDMI_VP_STUFF_PR_STUFFING_STUFFING_MODE = 0x1,
+
+	/* vp_conf field values */
+	HDMI_VP_CONF_BYPASS_EN_MASK = 0x40,
+	HDMI_VP_CONF_BYPASS_EN_ENABLE = 0x40,
+	HDMI_VP_CONF_PP_EN_ENMASK = 0x20,
+	HDMI_VP_CONF_PP_EN_DISABLE = 0x00,
+	HDMI_VP_CONF_PR_EN_MASK = 0x10,
+	HDMI_VP_CONF_PR_EN_DISABLE = 0x00,
+	HDMI_VP_CONF_YCC422_EN_MASK = 0x8,
+	HDMI_VP_CONF_YCC422_EN_DISABLE = 0x0,
+	HDMI_VP_CONF_BYPASS_SELECT_MASK = 0x4,
+	HDMI_VP_CONF_BYPASS_SELECT_VID_PACKETIZER = 0x4,
+	HDMI_VP_CONF_OUTPUT_SELECTOR_MASK = 0x3,
+	HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS = 0x3,
+
+	/* vp_remap field values */
+	HDMI_VP_REMAP_YCC422_16BIT = 0x0,
+
+	/* fc_invidconf field values */
+	HDMI_FC_INVIDCONF_HDCP_KEEPOUT_MASK = 0x80,
+	HDMI_FC_INVIDCONF_HDCP_KEEPOUT_ACTIVE = 0x80,
+	HDMI_FC_INVIDCONF_HDCP_KEEPOUT_INACTIVE = 0x00,
+	HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_MASK = 0x40,
+	HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_HIGH = 0x40,
+	HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_LOW = 0x00,
+	HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_MASK = 0x20,
+	HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_HIGH = 0x20,
+	HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_LOW = 0x00,
+	HDMI_FC_INVIDCONF_DE_IN_POLARITY_MASK = 0x10,
+	HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH = 0x10,
+	HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_LOW = 0x00,
+	HDMI_FC_INVIDCONF_DVI_MODEZ_MASK = 0x8,
+	HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE = 0x8,
+	HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE = 0x0,
+	HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_MASK = 0x2,
+	HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH = 0x2,
+	HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_LOW = 0x0,
+	HDMI_FC_INVIDCONF_IN_I_P_MASK = 0x1,
+	HDMI_FC_INVIDCONF_IN_I_P_INTERLACED = 0x1,
+	HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE = 0x0,
+
+
+	/* fc_aviconf0-fc_aviconf3 field values */
+	HDMI_FC_AVICONF0_PIX_FMT_MASK = 0x03,
+	HDMI_FC_AVICONF0_PIX_FMT_RGB = 0x00,
+	HDMI_FC_AVICONF0_PIX_FMT_YCBCR422 = 0x01,
+	HDMI_FC_AVICONF0_PIX_FMT_YCBCR444 = 0x02,
+	HDMI_FC_AVICONF0_ACTIVE_FMT_MASK = 0x40,
+	HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT = 0x40,
+	HDMI_FC_AVICONF0_ACTIVE_FMT_NO_INFO = 0x00,
+	HDMI_FC_AVICONF0_BAR_DATA_MASK = 0x0c,
+	HDMI_FC_AVICONF0_BAR_DATA_NO_DATA = 0x00,
+	HDMI_FC_AVICONF0_BAR_DATA_VERT_BAR = 0x04,
+	HDMI_FC_AVICONF0_BAR_DATA_HORIZ_BAR = 0x08,
+	HDMI_FC_AVICONF0_BAR_DATA_VERT_HORIZ_BAR = 0x0c,
+	HDMI_FC_AVICONF0_SCAN_INFO_MASK = 0x30,
+	HDMI_FC_AVICONF0_SCAN_INFO_OVERSCAN = 0x10,
+	HDMI_FC_AVICONF0_SCAN_INFO_UNDERSCAN = 0x20,
+	HDMI_FC_AVICONF0_SCAN_INFO_NODATA = 0x00,
+
+	HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_MASK = 0x0f,
+	HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_USE_CODED = 0x08,
+	HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_4_3 = 0x09,
+	HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_16_9 = 0x0a,
+	HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_14_9 = 0x0b,
+	HDMI_FC_AVICONF1_CODED_ASPECT_RATIO_MASK = 0x30,
+	HDMI_FC_AVICONF1_CODED_ASPECT_RATIO_NO_DATA = 0x00,
+	HDMI_FC_AVICONF1_CODED_ASPECT_RATIO_4_3 = 0x10,
+	HDMI_FC_AVICONF1_CODED_ASPECT_RATIO_16_9 = 0x20,
+	HDMI_FC_AVICONF1_COLORIMETRY_MASK = 0xc0,
+	HDMI_FC_AVICONF1_COLORIMETRY_NO_DATA = 0x00,
+	HDMI_FC_AVICONF1_COLORIMETRY_SMPTE = 0x40,
+	HDMI_FC_AVICONF1_COLORIMETRY_ITUR = 0x80,
+	HDMI_FC_AVICONF1_COLORIMETRY_EXTENDED_INFO = 0xc0,
+
+	HDMI_FC_AVICONF2_SCALING_MASK = 0x03,
+	HDMI_FC_AVICONF2_SCALING_NONE = 0x00,
+	HDMI_FC_AVICONF2_SCALING_HORIZ = 0x01,
+	HDMI_FC_AVICONF2_SCALING_VERT = 0x02,
+	HDMI_FC_AVICONF2_SCALING_HORIZ_vert = 0x03,
+	HDMI_FC_AVICONF2_RGB_QUANT_MASK = 0x0c,
+	HDMI_FC_AVICONF2_RGB_QUANT_DEFAULT = 0x00,
+	HDMI_FC_AVICONF2_RGB_QUANT_LIMITED_RANGE = 0x04,
+	HDMI_FC_AVICONF2_RGB_QUANT_FULL_RANGE = 0x08,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_MASK = 0x70,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC601 = 0x00,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC709 = 0x10,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_SYCC601 = 0x20,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_ADOBE_YCC601 = 0x30,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_ADOBE_RGB = 0x40,
+	HDMI_FC_AVICONF2_IT_CONTENT_MASK = 0x80,
+	HDMI_FC_AVICONF2_IT_CONTENT_NO_DATA = 0x00,
+	HDMI_FC_AVICONF2_IT_CONTENT_VALID = 0x80,
+
+	HDMI_FC_AVICONF3_IT_CONTENT_TYPE_MASK = 0x03,
+	HDMI_FC_AVICONF3_IT_CONTENT_TYPE_GRAPHICS = 0x00,
+	HDMI_FC_AVICONF3_IT_CONTENT_TYPE_PHOTO = 0x01,
+	HDMI_FC_AVICONF3_IT_CONTENT_TYPE_CINEMA = 0x02,
+	HDMI_FC_AVICONF3_IT_CONTENT_TYPE_GAME = 0x03,
+	HDMI_FC_AVICONF3_QUANT_RANGE_MASK = 0x0c,
+	HDMI_FC_AVICONF3_QUANT_RANGE_LIMITED = 0x00,
+	HDMI_FC_AVICONF3_QUANT_RANGE_FULL = 0x04,
+
+	/* fc_gcp field values*/
+	HDMI_FC_GCP_SET_AVMUTE = 0x02,
+	HDMI_FC_GCP_CLEAR_AVMUTE = 0x01,
+
+	/* phy_conf0 field values */
+	HDMI_PHY_CONF0_PDZ_MASK = 0x80,
+	HDMI_PHY_CONF0_PDZ_OFFSET = 7,
+	HDMI_PHY_CONF0_ENTMDS_MASK = 0x40,
+	HDMI_PHY_CONF0_ENTMDS_OFFSET = 6,
+	HDMI_PHY_CONF0_SPARECTRL_MASK = 0x20,
+	HDMI_PHY_CONF0_SPARECTRL_OFFSET = 5,
+	HDMI_PHY_CONF0_GEN2_PDDQ_MASK = 0x10,
+	HDMI_PHY_CONF0_GEN2_PDDQ_OFFSET = 4,
+	HDMI_PHY_CONF0_GEN2_TXPWRON_MASK = 0x8,
+	HDMI_PHY_CONF0_GEN2_TXPWRON_OFFSET = 3,
+	HDMI_PHY_CONF0_SELDATAENPOL_MASK = 0x2,
+	HDMI_PHY_CONF0_SELDATAENPOL_OFFSET = 1,
+	HDMI_PHY_CONF0_SELDIPIF_MASK = 0x1,
+	HDMI_PHY_CONF0_SELDIPIF_OFFSET = 0,
+
+	/* phy_tst0 field values */
+	HDMI_PHY_TST0_TSTCLR_MASK = 0x20,
+	HDMI_PHY_TST0_TSTCLR_OFFSET = 5,
+
+	/* phy_stat0 field values */
+	HDMI_PHY_HPD = 0x02,
+	HDMI_PHY_TX_PHY_LOCK = 0x01,
+
+	/* phy_i2cm_slave_addr field values */
+	HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2 = 0x69,
+
+	/* phy_i2cm_operation_addr field values */
+	HDMI_PHY_I2CM_OPERATION_ADDR_WRITE = 0x10,
+
+	/* hdmi_phy_i2cm_int_addr */
+	HDMI_PHY_I2CM_INT_ADDR_DONE_POL = 0x08,
+
+	/* hdmi_phy_i2cm_ctlint_addr */
+	HDMI_PHY_I2CM_CTLINT_ADDR_NAC_POL = 0x80,
+	HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL = 0x08,
+
+	/* aud_conf0 field values */
+	HDMI_AUD_CONF0_SW_AUDIO_FIFO_RST = 0x80,
+	HDMI_AUD_CONF0_I2S_SELECT = 0x20,
+	HDMI_AUD_CONF0_I2S_IN_EN_0 = 0x01,
+	HDMI_AUD_CONF0_I2S_IN_EN_1 = 0x02,
+	HDMI_AUD_CONF0_I2S_IN_EN_2 = 0x04,
+	HDMI_AUD_CONF0_I2S_IN_EN_3 = 0x08,
+
+	/* aud_conf0 field values */
+	HDMI_AUD_CONF1_I2S_MODE_STANDARD_MODE = 0x0,
+	HDMI_AUD_CONF1_I2S_WIDTH_16BIT = 0x10,
+
+	/* aud_n3 field values */
+	HDMI_AUD_N3_NCTS_ATOMIC_WRITE = 0x80,
+	HDMI_AUD_N3_AUDN19_16_MASK = 0x0f,
+
+	/* aud_cts3 field values */
+	HDMI_AUD_CTS3_N_SHIFT_OFFSET = 5,
+	HDMI_AUD_CTS3_N_SHIFT_MASK = 0xe0,
+	HDMI_AUD_CTS3_N_SHIFT_1 = 0,
+	HDMI_AUD_CTS3_N_SHIFT_16 = 0x20,
+	HDMI_AUD_CTS3_N_SHIFT_32 = 0x40,
+	HDMI_AUD_CTS3_N_SHIFT_64 = 0x60,
+	HDMI_AUD_CTS3_N_SHIFT_128 = 0x80,
+	HDMI_AUD_CTS3_N_SHIFT_256 = 0xa0,
+	HDMI_AUD_CTS3_CTS_MANUAL = 0x10,
+	HDMI_AUD_CTS3_AUDCTS19_16_MASK = 0x0f,
+
+	/* aud_inputclkfs filed values */
+	HDMI_AUD_INPUTCLKFS_128 = 0x0,
+
+	/* mc_clkdis field values */
+	HDMI_MC_CLKDIS_AUDCLK_DISABLE = 0x8,
+	HDMI_MC_CLKDIS_TMDSCLK_DISABLE = 0x2,
+	HDMI_MC_CLKDIS_PIXELCLK_DISABLE = 0x1,
+
+	/* mc_swrstz field values */
+	HDMI_MC_SWRSTZ_II2SSWRST_REQ = 0x08,
+	HDMI_MC_SWRSTZ_TMDSSWRST_REQ = 0x02,
+
+	/* mc_flowctrl field values */
+	HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH = 0x1,
+	HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS = 0x0,
+
+	/* mc_phyrstz field values */
+	HDMI_MC_PHYRSTZ_ASSERT = 0x0,
+	HDMI_MC_PHYRSTZ_DEASSERT = 0x1,
+
+	/* mc_heacphy_rst field values */
+	HDMI_MC_HEACPHY_RST_ASSERT = 0x1,
+
+	/* csc_cfg field values */
+	HDMI_CSC_CFG_INTMODE_DISABLE = 0x00,
+
+	/* csc_scale field values */
+	HDMI_CSC_SCALE_CSC_COLORDE_PTH_MASK = 0xf0,
+	HDMI_CSC_SCALE_CSC_COLORDE_PTH_24BPP = 0x00,
+	HDMI_CSC_SCALE_CSC_COLORDE_PTH_30BPP = 0x50,
+	HDMI_CSC_SCALE_CSC_COLORDE_PTH_36BPP = 0x60,
+	HDMI_CSC_SCALE_CSC_COLORDE_PTH_48BPP = 0x70,
+	HDMI_CSC_SCALE_CSCSCALE_MASK = 0x03,
+
+	/* i2cm filed values */
+	HDMI_I2CM_SLAVE_DDC_ADDR = 0x50,
+	HDMI_I2CM_SEGADDR_DDC = 0x30,
+	HDMI_I2CM_OPT_RD8_EXT = 0x8,
+	HDMI_I2CM_OPT_RD8 = 0x4,
+	HDMI_I2CM_DIV_FAST_STD_MODE = 0x8,
+	HDMI_I2CM_DIV_FAST_MODE = 0x8,
+	HDMI_I2CM_DIV_STD_MODE = 0x0,
+	HDMI_I2CM_SOFTRSTZ = 0x1,
+};
+
+/*
+struct display_timing;
+struct rk3288_grf;
+
+int rk_hdmi_init(struct rk3288_grf *grf, u32 vop_id);
+int rk_hdmi_enable(const struct display_timing *edid);
+int rk_hdmi_get_edid(struct rk3288_grf *grf, struct display_timing *edid);
+*/
+
+#endif