Re: [PATCH v4 5/5] drm/rockchip: Add support for Rockchip Soc EDP

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On Tuesday, September 23, 2014 03:20 AM, Rob Clark wrote:
On Mon, Sep 22, 2014 at 7:02 AM, Mark yao <mark.yao@xxxxxxxxxxxxxx> wrote:
This adds support for Rockchip soc edp found on rk3288

Signed-off-by: Mark Yao <mark.yao@xxxxxxxxxxxxxx>
Signed-off-by: Jeff Chen <jeff.chen@xxxxxxxxxxxxxx>
---
Changes in v2:
- fix code sytle
- use some define from drm_dp_helper.h
- use panel-simple driver for primary display.
- remove unnecessary clock clk_24m_parent.

Changes in v3: None

Changes in v4: None

  drivers/gpu/drm/rockchip/Kconfig             |    9 +
  drivers/gpu/drm/rockchip/Makefile            |    2 +
  drivers/gpu/drm/rockchip/rockchip_edp_core.c |  853 ++++++++++++++++++
  drivers/gpu/drm/rockchip/rockchip_edp_core.h |  309 +++++++
  drivers/gpu/drm/rockchip/rockchip_edp_reg.c  | 1202 ++++++++++++++++++++++++++
  drivers/gpu/drm/rockchip/rockchip_edp_reg.h  |  345 ++++++++
  6 files changed, 2720 insertions(+)
  create mode 100644 drivers/gpu/drm/rockchip/rockchip_edp_core.c
  create mode 100644 drivers/gpu/drm/rockchip/rockchip_edp_core.h
  create mode 100644 drivers/gpu/drm/rockchip/rockchip_edp_reg.c
  create mode 100644 drivers/gpu/drm/rockchip/rockchip_edp_reg.h

diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
index 7146c80..04b1f8c 100644
--- a/drivers/gpu/drm/rockchip/Kconfig
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -17,3 +17,12 @@ config DRM_ROCKCHIP
           management to userspace. This driver does not provides
           2D or 3D acceleration; acceleration is performed by other
           IP found on the SoC.
+
+config ROCKCHIP_EDP
+       bool "Rockchip edp support"
+       depends on DRM_ROCKCHIP
+       help
+         Choose this option if you have a Rockchip eDP.
+         Rockchip rk3288 SoC has eDP TX Controller can be used.
+         If you have an Embedded DisplayPort Panel, say Y to enable its
+         driver.
diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile
index 6e6d468..a0fc3a1 100644
--- a/drivers/gpu/drm/rockchip/Makefile
+++ b/drivers/gpu/drm/rockchip/Makefile
@@ -7,4 +7,6 @@ ccflags-y := -Iinclude/drm -Idrivers/gpu/drm/rockchip
  rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o rockchip_drm_fbdev.o \
                 rockchip_drm_gem.o rockchip_drm_vop.o

+rockchipdrm-$(CONFIG_ROCKCHIP_EDP) += rockchip_edp_core.o rockchip_edp_reg.o
+
  obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o
diff --git a/drivers/gpu/drm/rockchip/rockchip_edp_core.c b/drivers/gpu/drm/rockchip/rockchip_edp_core.c
new file mode 100644
index 0000000..5450d1fa
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_edp_core.c
@@ -0,0 +1,853 @@
+/*
+* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+* Author:
+*      Andy yan <andy.yan@xxxxxxxxxxxxxx>
+*      Jeff chen <jeff.chen@xxxxxxxxxxxxxx>
+*
+* based on exynos_dp_core.c
+*
hmm, did you look at all at drm_dp_helpers?  The exynos code probably
pre-dates the helpers, so might not be the best example to work off
of..

If there is actually a valid reason not to use the dp-helpers, then
you should mention the reasons, at least in the commit msg if not the
code

BR,
-R
Thanks Rob,Because RK3288 eDP controller IP design is similar to exynos.They from same IP vendors but have some difference. So we choosed exynos_dp as example to work off of.exynos_dp only used some defines from drm_dp_helper.h like DPCD.

+* This program is free software; you can redistribute it and/or modify it
+* under the terms of the GNU General Public License as published by the
+* Free Software Foundation; either version 2 of the License, or (at your
+* option) any later version.
+*/
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_of.h>
+
+#include <linux/component.h>
+#include <linux/clk.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+
+#include <video/of_videomode.h>
+#include <video/videomode.h>
+
+#include "rockchip_edp_core.h"
+
+#define connector_to_edp(c) \
+               container_of(c, struct rockchip_edp_device, connector)
+
+#define encoder_to_edp(c) \
+               container_of(c, struct rockchip_edp_device, encoder)
+
+static struct rockchip_edp_soc_data soc_data[2] = {
+       /* rk3288 */
+       {.grf_soc_con6 = 0x025c,
+        .grf_soc_con12 = 0x0274},
+       /* no edp switching needed */
+       {.grf_soc_con6 = -1,
+        .grf_soc_con12 = -1},
+};
+
+static const struct of_device_id rockchip_edp_dt_ids[] = {
+       {.compatible = "rockchip,rk3288-edp",
+        .data = (void *)&soc_data[0] },
+       {}
+};
+
+MODULE_DEVICE_TABLE(of, rockchip_edp_dt_ids);
+
+static int rockchip_edp_clk_enable(struct rockchip_edp_device *edp)
+{
+       int ret = 0;
+
+       if (!edp->clk_on) {
+               ret = clk_prepare_enable(edp->pclk);
+               if (ret < 0) {
+                       dev_err(edp->dev, "cannot enable edp pclk %d\n", ret);
+                       goto err_pclk;
+               }
+
+               ret = clk_prepare_enable(edp->clk_edp);
+               if (ret < 0) {
+                       dev_err(edp->dev, "cannot enable clk_edp %d\n", ret);
+                       goto err_clk_edp;
+               }
+
+               ret = clk_set_rate(edp->clk_24m, 24000000);
+               if (ret < 0) {
+                       dev_err(edp->dev, "cannot set edp clk_24m %d\n",
+                               ret);
+                       goto err_clk_24m;
+               }
+
+               ret = clk_prepare_enable(edp->clk_24m);
+               if (ret < 0) {
+                       dev_err(edp->dev, "cannot enable edp clk_24m %d\n",
+                               ret);
+                       goto err_clk_24m;
+               }
+
+               edp->clk_on = true;
+       }
+
+       return 0;
+
+err_clk_24m:
+       clk_disable_unprepare(edp->clk_edp);
+err_clk_edp:
+       clk_disable_unprepare(edp->pclk);
+err_pclk:
+       edp->clk_on = false;
+
+       return ret;
+}
+
+static int rockchip_edp_clk_disable(struct rockchip_edp_device *edp)
+{
+       if (edp->clk_on) {
+               clk_disable_unprepare(edp->pclk);
+               clk_disable_unprepare(edp->clk_edp);
+               clk_disable_unprepare(edp->clk_24m);
+               edp->clk_on = false;
+       }
+
+       return 0;
+}
+
+static int rockchip_edp_pre_init(struct rockchip_edp_device *edp)
+{
+       u32 val;
+       int ret;
+
+       val = GRF_EDP_REF_CLK_SEL_INTER | (GRF_EDP_REF_CLK_SEL_INTER << 16);
+       ret = regmap_write(edp->grf, edp->soc_data->grf_soc_con12, val);
+       if (ret != 0) {
+               dev_err(edp->dev, "Could not write to GRF: %d\n", ret);
+               return ret;
+       }
+
+       reset_control_assert(edp->rst);
+       usleep_range(10, 20);
+       reset_control_deassert(edp->rst);
+
+       return 0;
+}
+
+static int rockchip_edp_init_edp(struct rockchip_edp_device *edp)
+{
+       rockchip_edp_reset(edp);
+       rockchip_edp_init_refclk(edp);
+       rockchip_edp_init_interrupt(edp);
+       rockchip_edp_enable_sw_function(edp);
+       rockchip_edp_init_analog_func(edp);
+       rockchip_edp_init_hpd(edp);
+       rockchip_edp_init_aux(edp);
+
+       return 0;
+}
+
+static int rockchip_edp_get_max_rx_bandwidth(
+                                       struct rockchip_edp_device *edp,
+                                       u8 *bandwidth)
+{
+       u8 data;
+       int retval;
+
+       /*
+        * For DP rev.1.1, Maximum link rate of Main Link lanes
+        * 0x06 = 1.62 Gbps, 0x0a = 2.7 Gbps
+        */
+       retval = rockchip_edp_read_byte_from_dpcd(
+                       edp, DP_MAX_LINK_RATE, &data);
+       if (retval < 0)
+               *bandwidth = 0;
+       else
+               *bandwidth = data;
+
+       return retval;
+}
+
+static int rockchip_edp_get_max_rx_lane_count(struct rockchip_edp_device *edp,
+                                             u8 *lane_count)
+{
+       u8 data;
+       int retval;
+
+       /*
+        * For DP rev.1.1, Maximum number of Main Link lanes
+        * 0x01 = 1 lane, 0x02 = 2 lanes, 0x04 = 4 lanes
+        */
+       retval = rockchip_edp_read_byte_from_dpcd(
+                       edp, DP_MAX_LANE_COUNT, &data);
+       if (retval < 0)
+               *lane_count = 0;
+       else
+               *lane_count = DPCD_MAX_LANE_COUNT(data);
+
+       return retval;
+}
+
+static int rockchip_edp_init_training(struct rockchip_edp_device *edp)
+{
+       int retval;
+
+       /*
+        * MACRO_RST must be applied after the PLL_LOCK to avoid
+        * the DP inter pair skew issue for at least 10 us
+        */
+       rockchip_edp_reset_macro(edp);
+
+       retval = rockchip_edp_get_max_rx_bandwidth(
+                               edp, &edp->link_train.link_rate);
+       retval = rockchip_edp_get_max_rx_lane_count(
+                               edp, &edp->link_train.lane_count);
+       dev_dbg(edp->dev, "max link rate:%d.%dGps max number of lanes:%d\n",
+               edp->link_train.link_rate * 27 / 100,
+               edp->link_train.link_rate * 27 % 100,
+               edp->link_train.lane_count);
+
+       if ((edp->link_train.link_rate != DP_LINK_BW_1_62) &&
+           (edp->link_train.link_rate != DP_LINK_BW_2_7)) {
+               dev_warn(edp->dev, "Rx Max Link Rate is abnormal :%x !\n"
+                        "use default link rate:%d.%dGps\n",
+                        edp->link_train.link_rate,
+                        edp->video_info.link_rate * 27 / 100,
+                        edp->video_info.link_rate * 27 % 100);
+                        edp->link_train.link_rate = edp->video_info.link_rate;
+       }
+
+       if (edp->link_train.lane_count == 0) {
+               dev_err(edp->dev, "Rx Max Lane count is abnormal :%x !\n"
+                       "use default lanes:%d\n",
+                       edp->link_train.lane_count,
+                       edp->video_info.lane_count);
+               edp->link_train.lane_count = edp->video_info.lane_count;
+       }
+
+       rockchip_edp_analog_power_ctr(edp, 1);
+
+       return 0;
+}
+
+static int rockchip_edp_hw_link_training(struct rockchip_edp_device *edp)
+{
+       u32 cnt = 50;
+       u32 val;
+
+       /* Set link rate and count as you want to establish*/
+       rockchip_edp_set_link_bandwidth(edp, edp->link_train.link_rate);
+       rockchip_edp_set_lane_count(edp, edp->link_train.lane_count);
+       rockchip_edp_hw_link_training_en(edp);
+       val = rockchip_edp_wait_hw_lt_done(edp);
+       while (val) {
+               if (cnt-- <= 0) {
+                       dev_err(edp->dev, "hw lt timeout");
+                       return -ETIMEDOUT;
+               }
+               mdelay(1);
+               val = rockchip_edp_wait_hw_lt_done(edp);
+       }
+
+       val = rockchip_edp_get_hw_lt_status(edp);
+       if (val)
+               dev_err(edp->dev, "hw lt err:%d\n", val);
+
+       return val;
+}
+
+static int rockchip_edp_set_link_train(struct rockchip_edp_device *edp)
+{
+       int retval;
+
+       rockchip_edp_init_training(edp);
+
+       retval = rockchip_edp_hw_link_training(edp);
+       if (retval < 0)
+               dev_err(edp->dev, "DP hw LT failed!\n");
+
+       return retval;
+}
+
+static int rockchip_edp_config_video(struct rockchip_edp_device *edp,
+                                    struct video_info *video_info)
+{
+       int retval = 0;
+       int timeout_loop = 0;
+       int done_count = 0;
+
+       rockchip_edp_config_video_slave_mode(edp, video_info);
+
+       rockchip_edp_set_video_color_format(edp, video_info->color_depth,
+                                           video_info->color_space,
+                                           video_info->dynamic_range,
+                                           video_info->ycbcr_coeff);
+
+       if (rockchip_edp_get_pll_lock_status(edp) == DP_PLL_UNLOCKED) {
+               dev_err(edp->dev, "PLL is not locked yet.\n");
+               return -EINVAL;
+       }
+
+       for (;;) {
+               timeout_loop++;
+               if (rockchip_edp_is_slave_video_stream_clock_on(edp) == 0)
+                       break;
+
+               if (DP_TIMEOUT_LOOP_CNT < timeout_loop) {
+                       dev_err(edp->dev, "Timeout of video streamclk ok\n");
+                       return -ETIMEDOUT;
+               }
+
+               udelay(1);
+       }
+
+       /* Set to use the register calculated M/N video */
+       rockchip_edp_set_video_cr_mn(edp, CALCULATED_M, 0, 0);
+
+       /* Disable video mute */
+       rockchip_edp_enable_video_mute(edp, 0);
+
+       /* Configure video slave mode */
+       rockchip_edp_enable_video_master(edp, 0);
+
+       /* Enable video */
+       rockchip_edp_start_video(edp);
+
+       timeout_loop = 0;
+
+       for (;;) {
+               timeout_loop++;
+               if (rockchip_edp_is_video_stream_on(edp) == 0) {
+                       done_count++;
+                       if (done_count > 10)
+                               break;
+               } else if (done_count) {
+                       done_count = 0;
+               }
+               if (DP_TIMEOUT_LOOP_CNT < timeout_loop) {
+                       dev_err(edp->dev, "Timeout of video streamclk ok\n");
+                       return -ETIMEDOUT;
+               }
+
+               mdelay(1);
+       }
+
+       if (retval != 0)
+               dev_err(edp->dev, "Video stream is not detected!\n");
+
+       return retval;
+}
+
+static irqreturn_t rockchip_edp_isr(int irq, void *arg)
+{
+       struct rockchip_edp_device *edp = arg;
+       enum dp_irq_type irq_type;
+
+       irq_type = rockchip_edp_get_irq_type(edp);
+       switch (irq_type) {
+       case DP_IRQ_TYPE_HP_CABLE_IN:
+               dev_dbg(edp->dev, "Received irq - cable in\n");
+               rockchip_edp_clear_hotplug_interrupts(edp);
+               break;
+       case DP_IRQ_TYPE_HP_CABLE_OUT:
+               dev_dbg(edp->dev, "Received irq - cable out\n");
+               rockchip_edp_clear_hotplug_interrupts(edp);
+               break;
+       case DP_IRQ_TYPE_HP_CHANGE:
+               /*
+                * We get these change notifications once in a while, but there
+                * is nothing we can do with them. Just ignore it for now and
+                * only handle cable changes.
+                */
+               dev_dbg(edp->dev, "Received irq - hotplug change; ignoring.\n");
+               rockchip_edp_clear_hotplug_interrupts(edp);
+               break;
+       default:
+               dev_err(edp->dev, "Received irq - unknown type[%x]!\n",
+                       irq_type);
+               rockchip_edp_clear_hotplug_interrupts(edp);
+               break;
+       }
+
+       return IRQ_HANDLED;
+}
+
+static void rockchip_edp_commit(struct drm_encoder *encoder)
+{
+       struct rockchip_edp_device *edp = encoder_to_edp(encoder);
+       int ret;
+
+       ret = rockchip_edp_set_link_train(edp);
+       if (ret)
+               dev_err(edp->dev, "link train failed!\n");
+       else
+               dev_dbg(edp->dev, "link training success.\n");
+
+       rockchip_edp_set_lane_count(edp, edp->link_train.lane_count);
+       rockchip_edp_set_link_bandwidth(edp, edp->link_train.link_rate);
+       rockchip_edp_init_video(edp);
+
+       ret = rockchip_edp_config_video(edp, &edp->video_info);
+       if (ret)
+               dev_err(edp->dev, "unable to config video\n");
+}
+
+static void rockchip_edp_poweron(struct drm_encoder *encoder)
+{
+       struct rockchip_edp_device *edp = encoder_to_edp(encoder);
+       int ret;
+
+       if (edp->dpms_mode == DRM_MODE_DPMS_ON)
+               return;
+
+       if (edp->panel)
+               edp->panel->funcs->enable(edp->panel);
+
+       ret = rockchip_edp_clk_enable(edp);
+       if (ret < 0) {
+               dev_err(edp->dev, "cannot enable edp clk %d\n", ret);
+               return;
+       }
+
+       ret = rockchip_edp_pre_init(edp);
+       if (ret < 0) {
+               dev_err(edp->dev, "edp pre init fail %d\n", ret);
+               return;
+       }
+
+       ret = rockchip_edp_init_edp(edp);
+       if (ret < 0) {
+               dev_err(edp->dev, "edp init fail %d\n", ret);
+               return;
+       }
+
+       enable_irq(edp->irq);
+       rockchip_edp_commit(encoder);
+}
+
+static void rockchip_edp_poweroff(struct drm_encoder *encoder)
+{
+       struct rockchip_edp_device *edp = encoder_to_edp(encoder);
+
+       if (edp->dpms_mode == DRM_MODE_DPMS_OFF)
+               return;
+
+       disable_irq(edp->irq);
+       rockchip_edp_reset(edp);
+       rockchip_edp_analog_power_ctr(edp, 0);
+       rockchip_edp_clk_disable(edp);
+       if (edp->panel)
+               edp->panel->funcs->disable(edp->panel);
+}
+
+static enum drm_connector_status
+rockchip_connector_detect(struct drm_connector *connector, bool force)
+{
+       return connector_status_connected;
+}
+
+static void rockchip_connector_destroy(struct drm_connector *connector)
+{
+       drm_sysfs_connector_remove(connector);
+       drm_connector_cleanup(connector);
+}
+
+static struct drm_connector_funcs rockchip_connector_funcs = {
+       .dpms = drm_helper_connector_dpms,
+       .detect = rockchip_connector_detect,
+       .fill_modes = drm_helper_probe_single_connector_modes,
+       .destroy = rockchip_connector_destroy,
+};
+
+static int rockchip_connector_get_modes(struct drm_connector *connector)
+{
+       struct rockchip_edp_device *edp = connector_to_edp(connector);
+       struct drm_panel *panel = edp->panel;
+
+       return panel->funcs->get_modes(panel);
+}
+
+static struct drm_encoder *
+       rockchip_connector_best_encoder(struct drm_connector *connector)
+{
+       struct rockchip_edp_device *edp = connector_to_edp(connector);
+
+       return &edp->encoder;
+}
+
+static enum drm_mode_status rockchip_connector_mode_valid(
+               struct drm_connector *connector,
+               struct drm_display_mode *mode)
+{
+       /* TODO(rk): verify that the mode is really valid */
+       return MODE_OK;
+}
+
+static struct drm_connector_helper_funcs rockchip_connector_helper_funcs = {
+       .get_modes = rockchip_connector_get_modes,
+       .mode_valid = rockchip_connector_mode_valid,
+       .best_encoder = rockchip_connector_best_encoder,
+};
+
+static void rockchip_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+       struct rockchip_edp_device *edp = encoder_to_edp(encoder);
+
+       if (edp->dpms_mode == mode)
+               return;
+
+       switch (mode) {
+       case DRM_MODE_DPMS_ON:
+               rockchip_edp_poweron(encoder);
+               break;
+       case DRM_MODE_DPMS_STANDBY:
+       case DRM_MODE_DPMS_SUSPEND:
+       case DRM_MODE_DPMS_OFF:
+               rockchip_edp_poweroff(encoder);
+               break;
+       default:
+               break;
+       }
+
+       edp->dpms_mode = mode;
+}
+
+static bool
+rockchip_drm_encoder_mode_fixup(struct drm_encoder *encoder,
+                               const struct drm_display_mode *mode,
+                               struct drm_display_mode *adjusted_mode)
+{
+       if (!adjusted_mode->private) {
+               struct rockchip_display_mode *priv_mode;
+
+               priv_mode = kzalloc(sizeof(*priv_mode), GFP_KERNEL);
+               priv_mode->out_type = ROCKCHIP_DISPLAY_TYPE_EDP;
+               adjusted_mode->private = (int *)priv_mode;
+       }
+
+       return true;
+}
+
+static void rockchip_drm_encoder_mode_set(struct drm_encoder *encoder,
+                                         struct drm_display_mode *mode,
+                                         struct drm_display_mode *adjusted)
+{
+       struct rockchip_edp_device *edp = encoder_to_edp(encoder);
+       u32 val;
+       int ret;
+
+       ret = rockchip_drm_encoder_get_mux_id(edp->dev->of_node, encoder);
+       if (ret < 0)
+               return;
+
+       if (ret == ROCKCHIP_CRTC_VOPL)
+               val = EDP_SEL_VOP_LIT | (EDP_SEL_VOP_LIT << 16);
+       else
+               val = EDP_SEL_VOP_LIT << 16;
+
+       dev_info(edp->dev, "vop %s output to edp\n",
+                (ret == ROCKCHIP_CRTC_VOPL) ? "LIT" : "BIG");
+       ret = regmap_write(edp->grf, edp->soc_data->grf_soc_con6, val);
+       if (ret != 0) {
+               dev_err(edp->dev, "Could not write to GRF: %d\n", ret);
+               return;
+       }
+
+       memcpy(&edp->mode, adjusted, sizeof(*mode));
+}
+
+static void rockchip_drm_encoder_prepare(struct drm_encoder *encoder)
+{
+}
+
+static void rockchip_drm_encoder_commit(struct drm_encoder *encoder)
+{
+       rockchip_drm_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
+}
+
+static void rockchip_drm_encoder_disable(struct drm_encoder *encoder)
+{
+       struct drm_plane *plane;
+       struct drm_device *dev = encoder->dev;
+
+       rockchip_drm_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+
+       /* all planes connected to this encoder should be also disabled. */
+       list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
+               if (plane->crtc && (plane->crtc == encoder->crtc))
+                       plane->funcs->disable_plane(plane);
+       }
+}
+
+static struct drm_encoder_helper_funcs rockchip_encoder_helper_funcs = {
+       .dpms = rockchip_drm_encoder_dpms,
+       .mode_fixup = rockchip_drm_encoder_mode_fixup,
+       .mode_set = rockchip_drm_encoder_mode_set,
+       .prepare = rockchip_drm_encoder_prepare,
+       .commit = rockchip_drm_encoder_commit,
+       .disable = rockchip_drm_encoder_disable,
+};
+
+static void rockchip_drm_encoder_destroy(struct drm_encoder *encoder)
+{
+       drm_encoder_cleanup(encoder);
+}
+
+static struct drm_encoder_funcs rockchip_encoder_funcs = {
+       .destroy = rockchip_drm_encoder_destroy,
+};
+
+static int rockchip_edp_init(struct rockchip_edp_device *edp)
+{
+       struct device *dev = edp->dev;
+       struct device_node *np = dev->of_node;
+       struct platform_device *pdev = to_platform_device(dev);
+       struct resource *res;
+       const struct of_device_id *match;
+       int ret;
+
+       if (!np) {
+               dev_err(dev, "Missing device tree node.\n");
+               return -EINVAL;
+       }
+
+       match = of_match_node(rockchip_edp_dt_ids, np);
+       edp->soc_data = (struct rockchip_edp_soc_data *)match->data;
+       /*
+        * The control bit is located in the GRF register space.
+        */
+       if (edp->soc_data->grf_soc_con6 >= 0) {
+               edp->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
+               if (IS_ERR(edp->grf)) {
+                       dev_err(dev,
+                               "rk3288-edp needs rockchip,grf property\n");
+                       return PTR_ERR(edp->grf);
+               }
+       }
+
+       edp->video_info.h_sync_polarity = 0;
+       edp->video_info.v_sync_polarity = 0;
+       edp->video_info.interlaced = 0;
+       edp->video_info.color_space = CS_RGB;
+       edp->video_info.dynamic_range = VESA;
+       edp->video_info.ycbcr_coeff = COLOR_YCBCR601;
+       edp->video_info.color_depth = COLOR_8;
+
+       edp->video_info.link_rate = DP_LINK_BW_1_62;
+       edp->video_info.lane_count = LANE_CNT4;
+
+       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       edp->regs = devm_ioremap_resource(dev, res);
+       if (IS_ERR(edp->regs)) {
+               dev_err(dev, "ioremap reg failed\n");
+               return PTR_ERR(edp->regs);
+       }
+
+       edp->clk_edp = devm_clk_get(dev, "clk_edp");
+       if (IS_ERR(edp->clk_edp)) {
+               dev_err(dev, "cannot get clk_edp\n");
+               return PTR_ERR(edp->clk_edp);
+       }
+
+       edp->clk_24m = devm_clk_get(dev, "clk_edp_24m");
+       if (IS_ERR(edp->clk_24m)) {
+               dev_err(dev, "cannot get clk_edp_24m\n");
+               return PTR_ERR(edp->clk_24m);
+       }
+
+       edp->pclk = devm_clk_get(dev, "pclk_edp");
+       if (IS_ERR(edp->pclk)) {
+               dev_err(dev, "cannot get pclk\n");
+               return PTR_ERR(edp->pclk);
+       }
+
+       edp->rst = devm_reset_control_get(dev, "edp");
+       if (IS_ERR(edp->rst)) {
+               dev_err(dev, "failed to get reset\n");
+               return PTR_ERR(edp->rst);
+       }
+
+       ret = rockchip_edp_clk_enable(edp);
+       if (ret < 0) {
+               dev_err(edp->dev, "cannot enable edp clk %d\n", ret);
+               return ret;
+       }
+
+       ret = rockchip_edp_pre_init(edp);
+       if (ret < 0) {
+               dev_err(edp->dev, "failed to pre init %d\n", ret);
+               return ret;
+       }
+
+       edp->irq = platform_get_irq(pdev, 0);
+       if (edp->irq < 0) {
+               dev_err(dev, "cannot find IRQ\n");
+               return edp->irq;
+       }
+
+       ret = devm_request_irq(dev, edp->irq, rockchip_edp_isr, 0,
+                              dev_name(dev), edp);
+       if (ret) {
+               dev_err(dev, "cannot claim IRQ %d\n", edp->irq);
+               return ret;
+       }
+
+       disable_irq_nosync(edp->irq);
+
+       edp->dpms_mode = DRM_MODE_DPMS_OFF;
+
+       dev_set_name(edp->dev, "rockchip-edp");
+
+       return 0;
+}
+
+static int rockchip_edp_bind(struct device *dev, struct device *master,
+                            void *data)
+{
+       struct rockchip_edp_device *edp = dev_get_drvdata(dev);
+       struct drm_encoder *encoder;
+       struct drm_connector *connector;
+       struct drm_device *drm_dev = data;
+       int ret;
+
+       ret = rockchip_edp_init(edp);
+       if (ret < 0)
+               return ret;
+
+       edp->drm_dev = drm_dev;
+
+       encoder = &edp->encoder;
+
+       encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev,
+                                                            dev->of_node);
+       DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);
+
+       ret = drm_encoder_init(drm_dev, encoder, &rockchip_encoder_funcs,
+                              DRM_MODE_ENCODER_LVDS);
+       if (ret) {
+               DRM_ERROR("failed to initialize encoder with drm\n");
+               return ret;
+       }
+
+       drm_encoder_helper_add(encoder, &rockchip_encoder_helper_funcs);
+
+       connector = &edp->connector;
+       connector->polled = DRM_CONNECTOR_POLL_HPD;
+       connector->dpms = DRM_MODE_DPMS_OFF;
+
+       ret = drm_connector_init(drm_dev, connector,
+                                &rockchip_connector_funcs,
+                                DRM_MODE_CONNECTOR_eDP);
+       if (ret) {
+               DRM_ERROR("failed to initialize connector with drm\n");
+               goto err_free_encoder;
+       }
+
+       drm_connector_helper_add(connector,
+                                &rockchip_connector_helper_funcs);
+
+       ret = drm_sysfs_connector_add(connector);
+       if (ret) {
+               DRM_ERROR("failed to add drm_sysfs\n");
+               goto err_free_connector;
+       }
+
+       ret = drm_mode_connector_attach_encoder(connector, encoder);
+       if (ret) {
+               DRM_ERROR("failed to attach connector and encoder\n");
+               goto err_free_connector_sysfs;
+       }
+
+       ret = drm_panel_attach(edp->panel, connector);
+       if (ret) {
+               DRM_ERROR("failed to attach connector and encoder\n");
+               goto err_free_connector_sysfs;
+       }
+
+       return 0;
+
+err_free_connector_sysfs:
+       drm_sysfs_connector_remove(connector);
+err_free_connector:
+       drm_connector_cleanup(connector);
+err_free_encoder:
+       drm_encoder_cleanup(encoder);
+       return ret;
+}
+
+static void rockchip_edp_unbind(struct device *dev, struct device *master,
+                               void *data)
+{
+       struct rockchip_edp_device *edp = dev_get_drvdata(dev);
+       struct drm_encoder *encoder;
+
+       encoder = &edp->encoder;
+
+       if (edp->panel)
+               drm_panel_detach(edp->panel);
+
+       rockchip_drm_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+       encoder->funcs->destroy(encoder);
+       drm_sysfs_connector_remove(&edp->connector);
+       drm_connector_cleanup(&edp->connector);
+       drm_encoder_cleanup(encoder);
+}
+
+static const struct component_ops rockchip_edp_component_ops = {
+       .bind = rockchip_edp_bind,
+       .unbind = rockchip_edp_unbind,
+};
+
+static int rockchip_edp_probe(struct platform_device *pdev)
+{
+       struct device *dev = &pdev->dev;
+       struct drm_panel *panel;
+       struct device_node *panel_node;
+       struct rockchip_edp_device *edp;
+
+       if (!dev->of_node) {
+               dev_err(dev, "can't find eDP devices\n");
+               return -ENODEV;
+       }
+
+       panel_node = of_parse_phandle(dev->of_node, "rockchip,panel", 0);
+       if (!panel_node) {
+               DRM_ERROR("failed to find diaplay panel\n");
+               return -ENODEV;
+       }
+
+       panel = of_drm_find_panel(panel_node);
+       if (!panel) {
+               DRM_ERROR("failed to find diaplay panel\n");
+               of_node_put(panel_node);
+               return -EPROBE_DEFER;
+       }
+
+       of_node_put(panel_node);
+
+       edp = devm_kzalloc(dev, sizeof(*edp), GFP_KERNEL);
+       if (!edp)
+               return -ENOMEM;
+       edp->dev = dev;
+       edp->panel = panel;
+       platform_set_drvdata(pdev, edp);
+
+       return component_add(dev, &rockchip_edp_component_ops);
+}
+
+static int rockchip_edp_remove(struct platform_device *pdev)
+{
+       component_del(&pdev->dev, &rockchip_edp_component_ops);
+
+       return 0;
+}
+
+static struct platform_driver rockchip_edp_driver = {
+       .probe = rockchip_edp_probe,
+       .remove = rockchip_edp_remove,
+       .driver = {
+                  .name = "rockchip-edp",
+                  .owner = THIS_MODULE,
+                  .of_match_table = of_match_ptr(rockchip_edp_dt_ids),
+       },
+};
+
+module_platform_driver(rockchip_edp_driver);
+
+MODULE_AUTHOR("Jeff chen <jeff.chen@xxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("ROCKCHIP EDP Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/rockchip/rockchip_edp_core.h b/drivers/gpu/drm/rockchip/rockchip_edp_core.h
new file mode 100644
index 0000000..c13325f
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_edp_core.h
@@ -0,0 +1,309 @@
+/*
+* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+* Author:
+*      Andy yan <andy.yan@xxxxxxxxxxxxxx>
+*      Jeff chen <jeff.chen@xxxxxxxxxxxxxx>
+*
+* based on exynos_dp_core.h
+*
+* This program is free software; you can redistribute it and/or modify it
+* under the terms of the GNU General Public License as published by the
+* Free Software Foundation; either version 2 of the License, or (at your
+* option) any later version.
+*/
+
+#ifndef _ROCKCHIP_EDP_CORE_H
+#define _ROCKCHIP_EDP_CORE_H
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_dp_helper.h>
+#include <drm/drm_panel.h>
+#include "rockchip_drm_drv.h"
+
+#define DP_TIMEOUT_LOOP_CNT 100
+#define MAX_CR_LOOP 5
+#define MAX_EQ_LOOP 5
+
+#define GRF_EDP_REF_CLK_SEL_INTER              (1 << 4)
+#define GRF_EDP_HDCP_EN                                (1 << 15)
+#define GRF_EDP_BIST_EN                                (1 << 14)
+#define GRF_EDP_MEM_CTL_BY_EDP                 (1 << 13)
+#define GRF_EDP_SECURE_EN                      (1 << 3)
+#define EDP_SEL_VOP_LIT                                (1 << 5)
+
+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 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 color_coefficient {
+       COLOR_YCBCR601,
+       COLOR_YCBCR709
+};
+
+enum dynamic_range {
+       VESA,
+       CEA
+};
+
+enum pll_status {
+       DP_PLL_UNLOCKED,
+       DP_PLL_LOCKED
+};
+
+enum clock_recovery_m_value_type {
+       CALCULATED_M,
+       REGISTER_M
+};
+
+enum video_timing_recognition_type {
+       VIDEO_TIMING_FROM_CAPTURE,
+       VIDEO_TIMING_FROM_REGISTER
+};
+
+enum analog_power_block {
+       AUX_BLOCK,
+       CH0_BLOCK,
+       CH1_BLOCK,
+       CH2_BLOCK,
+       CH3_BLOCK,
+       ANALOG_TOTAL,
+       POWER_ALL
+};
+
+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,
+};
+
+struct video_info {
+       char *name;
+
+       bool h_sync_polarity;
+       bool v_sync_polarity;
+       bool interlaced;
+
+       enum color_space color_space;
+       enum dynamic_range dynamic_range;
+       enum color_coefficient ycbcr_coeff;
+       enum color_depth color_depth;
+
+       u8 link_rate;
+       enum link_lane_count_type lane_count;
+};
+
+struct link_train {
+       int eq_loop;
+       int cr_loop[4];
+
+       u8 link_rate;
+       u8 lane_count;
+       u8 training_lane[4];
+
+       enum link_training_state lt_state;
+};
+
+/*
+ * @grf_offset: offset inside the grf regmap for setting the rk3288 lvds
+ */
+struct rockchip_edp_soc_data {
+       int grf_soc_con6;
+       int grf_soc_con12;
+};
+
+struct rockchip_edp_device {
+       struct device *dev;
+       struct drm_device *drm_dev;
+       struct drm_panel *panel;
+       struct drm_connector connector;
+       struct drm_encoder encoder;
+       struct drm_display_mode mode;
+
+       struct rockchip_edp_soc_data *soc_data;
+
+       void __iomem *regs;
+       struct regmap *grf;
+       unsigned int irq;
+       struct clk *clk_edp;
+       struct clk *clk_24m_parent;
+       struct clk *clk_24m;
+       struct clk *pclk;
+       struct reset_control *rst;
+       struct link_train link_train;
+       struct video_info video_info;
+       bool clk_on;
+
+       int dpms_mode;
+};
+
+void rockchip_edp_enable_video_mute(struct rockchip_edp_device *edp,
+                                   bool enable);
+void rockchip_edp_stop_video(struct rockchip_edp_device *edp);
+void rockchip_edp_lane_swap(struct rockchip_edp_device *edp, bool enable);
+void rockchip_edp_init_refclk(struct rockchip_edp_device *edp);
+void rockchip_edp_init_interrupt(struct rockchip_edp_device *edp);
+void rockchip_edp_reset(struct rockchip_edp_device *edp);
+void rockchip_edp_config_interrupt(struct rockchip_edp_device *edp);
+u32 rockchip_edp_get_pll_lock_status(struct rockchip_edp_device *edp);
+void rockchip_edp_analog_power_ctr(struct rockchip_edp_device *edp,
+                                  bool enable);
+void rockchip_edp_init_analog_func(struct rockchip_edp_device *edp);
+void rockchip_edp_init_hpd(struct rockchip_edp_device *edp);
+void rockchip_edp_reset_aux(struct rockchip_edp_device *edp);
+void rockchip_edp_init_aux(struct rockchip_edp_device *edp);
+int rockchip_edp_get_plug_in_status(struct rockchip_edp_device *edp);
+void rockchip_edp_enable_sw_function(struct rockchip_edp_device *edp);
+int rockchip_edp_start_aux_transaction(struct rockchip_edp_device *edp);
+int rockchip_edp_write_byte_to_dpcd(struct rockchip_edp_device *edp,
+                                   unsigned int reg_addr,
+                                   unsigned char data);
+int rockchip_edp_read_byte_from_dpcd(struct rockchip_edp_device *edp,
+                                    unsigned int reg_addr,
+                                    unsigned char *data);
+int rockchip_edp_write_bytes_to_dpcd(struct rockchip_edp_device *edp,
+                                    unsigned int reg_addr,
+                                    unsigned int count,
+                                    unsigned char data[]);
+int rockchip_edp_read_bytes_from_dpcd(struct rockchip_edp_device *edp,
+                                     unsigned int reg_addr,
+                                     unsigned int count,
+                                     unsigned char data[]);
+int rockchip_edp_select_i2c_device(struct rockchip_edp_device *edp,
+                                  unsigned int device_addr,
+                                  unsigned int reg_addr);
+int rockchip_edp_read_byte_from_i2c(struct rockchip_edp_device *edp,
+                                   unsigned int device_addr,
+                                   unsigned int reg_addr,
+                                   unsigned int *data);
+int rockchip_edp_read_bytes_from_i2c(struct rockchip_edp_device *edp,
+                                    unsigned int device_addr,
+                                    unsigned int reg_addr,
+                                    unsigned int count,
+                                    unsigned char edid[]);
+void rockchip_edp_set_link_bandwidth(struct rockchip_edp_device *edp,
+                                    u32 bwtype);
+void rockchip_edp_get_link_bandwidth(struct rockchip_edp_device *edp,
+                                    u32 *bwtype);
+void rockchip_edp_set_lane_count(struct rockchip_edp_device *edp,
+                                u32 count);
+void rockchip_edp_get_lane_count(struct rockchip_edp_device *edp,
+                                u32 *count);
+void rockchip_edp_enable_enhanced_mode(struct rockchip_edp_device *edp,
+                                      bool enable);
+void rockchip_edp_set_training_pattern(struct rockchip_edp_device *edp,
+                                      enum pattern_set pattern);
+void rockchip_edp_set_lane0_pre_emphasis(struct rockchip_edp_device *edp,
+                                        u32 level);
+void rockchip_edp_set_lane1_pre_emphasis(struct rockchip_edp_device *edp,
+                                        u32 level);
+void rockchip_edp_set_lane2_pre_emphasis(struct rockchip_edp_device *edp,
+                                        u32 level);
+void rockchip_edp_set_lane3_pre_emphasis(struct rockchip_edp_device *edp,
+                                        u32 level);
+void rockchip_edp_set_lane0_link_training(struct rockchip_edp_device *edp,
+                                         u32 training_lane);
+void rockchip_edp_set_lane1_link_training(struct rockchip_edp_device *edp,
+                                         u32 training_lane);
+void rockchip_edp_set_lane2_link_training(struct rockchip_edp_device *edp,
+                                         u32 training_lane);
+void rockchip_edp_set_lane3_link_training(struct rockchip_edp_device *edp,
+                                         u32 training_lane);
+u32 rockchip_edp_get_lane0_link_training(struct rockchip_edp_device *edp);
+u32 rockchip_edp_get_lane1_link_training(struct rockchip_edp_device *edp);
+u32 rockchip_edp_get_lane2_link_training(struct rockchip_edp_device *edp);
+u32 rockchip_edp_get_lane3_link_training(struct rockchip_edp_device *edp);
+void rockchip_edp_reset_macro(struct rockchip_edp_device *edp);
+int rockchip_edp_init_video(struct rockchip_edp_device *edp);
+
+void rockchip_edp_set_video_color_format(struct rockchip_edp_device *edp,
+                                        u32 color_depth,
+                                        u32 color_space,
+                                        u32 dynamic_range,
+                                        u32 coeff);
+int
+rockchip_edp_is_slave_video_stream_clock_on(struct rockchip_edp_device *edp);
+void rockchip_edp_set_video_cr_mn(struct rockchip_edp_device *edp,
+                                 enum clock_recovery_m_value_type type,
+                                 u32 m_value,
+                                 u32 n_value);
+void rockchip_edp_set_video_timing_mode(struct rockchip_edp_device *edp,
+                                       u32 type);
+void rockchip_edp_enable_video_master(struct rockchip_edp_device *edp,
+                                     bool enable);
+void rockchip_edp_start_video(struct rockchip_edp_device *edp);
+int rockchip_edp_is_video_stream_on(struct rockchip_edp_device *edp);
+void rockchip_edp_config_video_slave_mode(struct rockchip_edp_device *edp,
+                                         struct video_info *video_info);
+void rockchip_edp_enable_scrambling(struct rockchip_edp_device *edp);
+void rockchip_edp_disable_scrambling(struct rockchip_edp_device *edp);
+void rockchip_edp_hw_link_training_en(struct rockchip_edp_device *edp);
+int rockchip_edp_get_hw_lt_status(struct rockchip_edp_device *edp);
+int rockchip_edp_wait_hw_lt_done(struct rockchip_edp_device *edp);
+enum dp_irq_type rockchip_edp_get_irq_type(struct rockchip_edp_device *edp);
+void rockchip_edp_clear_hotplug_interrupts(struct rockchip_edp_device *edp);
+
+/* I2C EDID Chip ID, Slave Address */
+#define I2C_EDID_DEVICE_ADDR                   0x50
+#define I2C_E_EDID_DEVICE_ADDR                 0x30
+
+/* DPCD_ADDR_MAX_LANE_COUNT */
+#define DPCD_ENHANCED_FRAME_CAP(x)             (((x) >> 7) & 0x1)
+#define DPCD_MAX_LANE_COUNT(x)                 ((x) & 0x1f)
+
+/* DPCD_ADDR_LANE_COUNT_SET */
+#define DPCD_LANE_COUNT_SET(x)                 ((x) & 0x1f)
+
+/* DPCD_ADDR_TRAINING_LANE0_SET */
+#define DPCD_PRE_EMPHASIS_SET(x)               (((x) & 0x3) << 3)
+#define DPCD_PRE_EMPHASIS_GET(x)               (((x) >> 3) & 0x3)
+#define DPCD_VOLTAGE_SWING_SET(x)              (((x) & 0x3) << 0)
+#define DPCD_VOLTAGE_SWING_GET(x)              (((x) >> 0) & 0x3)
+
+#endif  /* _ROCKCHIP_EDP_CORE_H */
diff --git a/drivers/gpu/drm/rockchip/rockchip_edp_reg.c b/drivers/gpu/drm/rockchip/rockchip_edp_reg.c
new file mode 100644
index 0000000..f6d641c
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_edp_reg.c
@@ -0,0 +1,1202 @@
+/*
+* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+* Author:
+*      Andy yan <andy.yan@xxxxxxxxxxxxxx>
+*      Jeff chen <jeff.chen@xxxxxxxxxxxxxx>
+*
+* based on exynos_dp_reg.c
+*
+* This program is free software; you can redistribute it and/or modify it
+* under the terms of the GNU General Public License as published by the
+* Free Software Foundation; either version 2 of the License, or (at your
+* option) any later version.
+*/
+
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include "rockchip_edp_core.h"
+#include "rockchip_edp_reg.h"
+
+void rockchip_edp_enable_video_mute(struct rockchip_edp_device *edp,
+                                   bool enable)
+{
+       u32 val;
+
+       if (enable) {
+               val = readl(edp->regs + VIDEO_CTL_1);
+               val |= VIDEO_MUTE;
+               writel(val, edp->regs + VIDEO_CTL_1);
+       } else {
+               val = readl(edp->regs + VIDEO_CTL_1);
+               val &= ~VIDEO_MUTE;
+               writel(val, edp->regs + VIDEO_CTL_1);
+       }
+}
+
+void rockchip_edp_stop_video(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + VIDEO_CTL_1);
+       val &= ~VIDEO_EN;
+       writel(val, edp->regs + VIDEO_CTL_1);
+}
+
+void rockchip_edp_lane_swap(struct rockchip_edp_device *edp, bool enable)
+{
+       u32 val;
+
+       if (enable)
+               val = LANE3_MAP_LOGIC_LANE_0 | LANE2_MAP_LOGIC_LANE_1 |
+                       LANE1_MAP_LOGIC_LANE_2 | LANE0_MAP_LOGIC_LANE_3;
+       else
+               val = LANE3_MAP_LOGIC_LANE_3 | LANE2_MAP_LOGIC_LANE_2 |
+                       LANE1_MAP_LOGIC_LANE_1 | LANE0_MAP_LOGIC_LANE_0;
+
+       writel(val, edp->regs + LANE_MAP);
+}
+
+void rockchip_edp_init_refclk(struct rockchip_edp_device *edp)
+{
+       writel(SEL_24M, edp->regs + ANALOG_CTL_2);
+       writel(REF_CLK_24M, edp->regs + PLL_REG_1);
+
+       writel(0x95, edp->regs + PLL_REG_2);
+       writel(0x40, edp->regs + PLL_REG_3);
+       writel(0x58, edp->regs + PLL_REG_4);
+       writel(0x22, edp->regs + PLL_REG_5);
+       writel(0x19, edp->regs + SSC_REG);
+       writel(0x87, edp->regs + TX_REG_COMMON);
+       writel(0x03, edp->regs + DP_AUX);
+       writel(0x46, edp->regs + DP_BIAS);
+       writel(0x55, edp->regs + DP_RESERVE2);
+}
+
+void rockchip_edp_init_interrupt(struct rockchip_edp_device *edp)
+{
+       /* Set interrupt pin assertion polarity as high */
+       writel(INT_POL, edp->regs + INT_CTL);
+
+       /* Clear pending valisers */
+       writel(0xff, edp->regs + COMMON_INT_STA_1);
+       writel(0x4f, edp->regs + COMMON_INT_STA_2);
+       writel(0xff, edp->regs + COMMON_INT_STA_3);
+       writel(0x27, edp->regs + COMMON_INT_STA_4);
+
+       writel(0x7f, edp->regs + DP_INT_STA);
+
+       /* 0:mask,1: unmask */
+       writel(0x00, edp->regs + COMMON_INT_MASK_1);
+       writel(0x00, edp->regs + COMMON_INT_MASK_2);
+       writel(0x00, edp->regs + COMMON_INT_MASK_3);
+       writel(0x00, edp->regs + COMMON_INT_MASK_4);
+       writel(0x00, edp->regs + DP_INT_STA_MASK);
+}
+
+void rockchip_edp_reset(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       rockchip_edp_stop_video(edp);
+       rockchip_edp_enable_video_mute(edp, 0);
+
+       val = VID_CAP_FUNC_EN_N | AUD_FIFO_FUNC_EN_N |
+               AUD_FUNC_EN_N | HDCP_FUNC_EN_N | SW_FUNC_EN_N;
+       writel(val, edp->regs + FUNC_EN_1);
+
+       val = SSC_FUNC_EN_N | AUX_FUNC_EN_N |
+               SERDES_FIFO_FUNC_EN_N |
+               LS_CLK_DOMAIN_FUNC_EN_N;
+       writel(val, edp->regs + FUNC_EN_2);
+
+       usleep_range(20, 30);
+
+       rockchip_edp_lane_swap(edp, 0);
+
+       writel(0x0, edp->regs + SYS_CTL_1);
+       writel(0x40, edp->regs + SYS_CTL_2);
+       writel(0x0, edp->regs + SYS_CTL_3);
+       writel(0x0, edp->regs + SYS_CTL_4);
+
+       writel(0x0, edp->regs + PKT_SEND_CTL);
+       writel(0x0, edp->regs + HDCP_CTL);
+
+       writel(0x5e, edp->regs + HPD_DEGLITCH_L);
+       writel(0x1a, edp->regs + HPD_DEGLITCH_H);
+
+       writel(0x10, edp->regs + LINK_DEBUG_CTL);
+
+       writel(0x0, edp->regs + VIDEO_FIFO_THRD);
+       writel(0x20, edp->regs + AUDIO_MARGIN);
+
+       writel(0x4, edp->regs + M_VID_GEN_FILTER_TH);
+       writel(0x2, edp->regs + M_AUD_GEN_FILTER_TH);
+
+       writel(0x0, edp->regs + SOC_GENERAL_CTL);
+}
+
+void rockchip_edp_config_interrupt(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       /* 0: mask, 1: unmask */
+       val = 0;
+       writel(val, edp->regs + COMMON_INT_MASK_1);
+
+       writel(val, edp->regs + COMMON_INT_MASK_2);
+
+       writel(val, edp->regs + COMMON_INT_MASK_3);
+
+       writel(val, edp->regs + COMMON_INT_MASK_4);
+
+       writel(val, edp->regs + DP_INT_STA_MASK);
+}
+
+u32 rockchip_edp_get_pll_lock_status(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + DEBUG_CTL);
+
+       return (val & PLL_LOCK) ? DP_PLL_LOCKED : DP_PLL_UNLOCKED;
+}
+
+void rockchip_edp_analog_power_ctr(struct rockchip_edp_device *edp,
+                                  bool enable)
+{
+       u32 val;
+
+       if (enable) {
+               val = PD_EXP_BG | PD_AUX | PD_PLL |
+                       PD_CH3 | PD_CH2 | PD_CH1 | PD_CH0;
+               writel(val, edp->regs + DP_PWRDN);
+               usleep_range(10, 20);
+               writel(0x0, edp->regs + DP_PWRDN);
+       } else {
+               val = PD_EXP_BG | PD_AUX | PD_PLL |
+                       PD_CH3 | PD_CH2 | PD_CH1 | PD_CH0;
+               writel(val, edp->regs + DP_PWRDN);
+       }
+}
+
+void rockchip_edp_init_analog_func(struct rockchip_edp_device *edp)
+{
+       u32 val;
+       int wt = 0;
+
+       rockchip_edp_analog_power_ctr(edp, 1);
+
+       val = PLL_LOCK_CHG;
+       writel(val, edp->regs + COMMON_INT_STA_1);
+
+       val = readl(edp->regs + DEBUG_CTL);
+       val &= ~(F_PLL_LOCK | PLL_LOCK_CTRL);
+       writel(val, edp->regs + DEBUG_CTL);
+
+       /* Power up PLL */
+       while (wt < 100) {
+               if (rockchip_edp_get_pll_lock_status(edp) == DP_PLL_LOCKED) {
+                       dev_dbg(edp->dev, "edp pll locked\n");
+                       break;
+               }
+               wt++;
+               udelay(5);
+       }
+
+       /* Enable Serdes FIFO function and Link symbol clock domain module */
+       val = readl(edp->regs + FUNC_EN_2);
+       val &= ~(SERDES_FIFO_FUNC_EN_N | LS_CLK_DOMAIN_FUNC_EN_N
+               | AUX_FUNC_EN_N | SSC_FUNC_EN_N);
+       writel(val, edp->regs + FUNC_EN_2);
+}
+
+void rockchip_edp_init_hpd(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = HOTPLUG_CHG | HPD_LOST | PLUG;
+       writel(val, edp->regs + COMMON_INT_STA_4);
+
+       val = INT_HPD;
+       writel(val, edp->regs + DP_INT_STA);
+
+       val = readl(edp->regs + SYS_CTL_3);
+       val |= (F_HPD | HPD_CTRL);
+       writel(val, edp->regs + SYS_CTL_3);
+}
+
+void rockchip_edp_reset_aux(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       /* Disable AUX channel module */
+       val = readl(edp->regs + FUNC_EN_2);
+       val |= AUX_FUNC_EN_N;
+       writel(val, edp->regs + FUNC_EN_2);
+}
+
+void rockchip_edp_init_aux(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       /* Clear inerrupts related to AUX channel */
+       val = RPLY_RECEIV | AUX_ERR;
+       writel(val, edp->regs + DP_INT_STA);
+
+       rockchip_edp_reset_aux(edp);
+
+       /* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
+       val = DEFER_CTRL_EN | DEFER_COUNT(1);
+       writel(val, edp->regs + AUX_CH_DEFER_CTL);
+
+       /* Enable AUX channel module */
+       val = readl(edp->regs + FUNC_EN_2);
+       val &= ~AUX_FUNC_EN_N;
+       writel(val, edp->regs + FUNC_EN_2);
+}
+
+int rockchip_edp_get_plug_in_status(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + SYS_CTL_3);
+       if (val & HPD_STATUS)
+               return 0;
+
+       return -EINVAL;
+}
+
+void rockchip_edp_enable_sw_function(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + FUNC_EN_1);
+       val &= ~SW_FUNC_EN_N;
+       writel(val, edp->regs + FUNC_EN_1);
+}
+
+int rockchip_edp_start_aux_transaction(struct rockchip_edp_device *edp)
+{
+       int val;
+       int retval = 0;
+       int timeout_loop = 0;
+       int aux_timeout = 0;
+
+       /* Enable AUX CH operation */
+       val = readl(edp->regs + AUX_CH_CTL_2);
+       val |= AUX_EN;
+       writel(val, edp->regs + AUX_CH_CTL_2);
+
+       /* Is AUX CH operation enabled? */
+       val = readl(edp->regs + AUX_CH_CTL_2);
+       while (val & AUX_EN) {
+               aux_timeout++;
+               if ((DP_TIMEOUT_LOOP_CNT * 10) < aux_timeout) {
+                       dev_err(edp->dev, "AUX CH enable timeout!\n");
+                       return -ETIMEDOUT;
+               }
+               val = readl(edp->regs + AUX_CH_CTL_2);
+               usleep_range(1000, 2000);
+       }
+
+       /* Is AUX CH command redply received? */
+       val = readl(edp->regs + DP_INT_STA);
+       while (!(val & RPLY_RECEIV)) {
+               timeout_loop++;
+               if (DP_TIMEOUT_LOOP_CNT < timeout_loop) {
+                       dev_err(edp->dev, "AUX CH command redply failed!\n");
+                       return -ETIMEDOUT;
+               }
+               val = readl(edp->regs + DP_INT_STA);
+               usleep_range(10, 20);
+       }
+
+       /* Clear interrupt source for AUX CH command redply */
+       writel(RPLY_RECEIV, edp->regs + DP_INT_STA);
+
+       /* Clear interrupt source for AUX CH access error */
+       val = readl(edp->regs + DP_INT_STA);
+       if (val & AUX_ERR) {
+               writel(AUX_ERR, edp->regs + DP_INT_STA);
+               return -EREMOTEIO;
+       }
+
+       /* Check AUX CH error access status */
+       val = readl(edp->regs + AUX_CH_STA);
+       if ((val & AUX_STATUS_MASK) != 0) {
+               dev_err(edp->dev, "AUX CH error happens: %d\n\n",
+                       val & AUX_STATUS_MASK);
+               return -EREMOTEIO;
+       }
+
+       return retval;
+}
+
+int rockchip_edp_write_byte_to_dpcd(struct rockchip_edp_device *edp,
+                                   unsigned int val_addr,
+                                   unsigned char data)
+{
+       u32 val;
+       int i;
+       int retval;
+
+       for (i = 0; i < 3; i++) {
+               /* Clear AUX CH data buffer */
+               val = BUF_CLR;
+               writel(val, edp->regs + BUFFER_DATA_CTL);
+
+               /* Select DPCD device address */
+               val = AUX_ADDR_7_0(val_addr);
+               writel(val, edp->regs + DP_AUX_ADDR_7_0);
+               val = AUX_ADDR_15_8(val_addr);
+               writel(val, edp->regs + DP_AUX_ADDR_15_8);
+               val = AUX_ADDR_19_16(val_addr);
+               writel(val, edp->regs + DP_AUX_ADDR_19_16);
+
+               /* Write data buffer */
+               val = (unsigned int)data;
+               writel(val, edp->regs + BUF_DATA_0);
+
+               /*
+                * Set DisplayPort transaction and write 1 byte
+                * If bit 3 is 1, DisplayPort transaction.
+                * If Bit 3 is 0, I2C transaction.
+                */
+               val = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
+               writel(val, edp->regs + AUX_CH_CTL_1);
+
+               /* Start AUX transaction */
+               retval = rockchip_edp_start_aux_transaction(edp);
+               if (retval == 0)
+                       break;
+
+               dev_dbg(edp->dev, "Aux Transaction fail!\n");
+       }
+
+       return retval;
+}
+
+int rockchip_edp_read_byte_from_dpcd(struct rockchip_edp_device *edp,
+                                    unsigned int val_addr,
+                                    unsigned char *data)
+{
+       u32 val;
+       int i;
+       int retval;
+
+       for (i = 0; i < 10; i++) {
+               /* Clear AUX CH data buffer */
+               val = BUF_CLR;
+               writel(val, edp->regs + BUFFER_DATA_CTL);
+
+               /* Select DPCD device address */
+               val = AUX_ADDR_7_0(val_addr);
+               writel(val, edp->regs + DP_AUX_ADDR_7_0);
+               val = AUX_ADDR_15_8(val_addr);
+               writel(val, edp->regs + DP_AUX_ADDR_15_8);
+               val = AUX_ADDR_19_16(val_addr);
+               writel(val, edp->regs + DP_AUX_ADDR_19_16);
+
+               /*
+                * Set DisplayPort transaction and read 1 byte
+                * If bit 3 is 1, DisplayPort transaction.
+                * If Bit 3 is 0, I2C transaction.
+                */
+               val = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
+               writel(val, edp->regs + AUX_CH_CTL_1);
+
+               /* Start AUX transaction */
+               retval = rockchip_edp_start_aux_transaction(edp);
+               if (retval == 0)
+                       break;
+
+               dev_dbg(edp->dev, "Aux Transaction fail!\n");
+       }
+
+       /* Read data buffer */
+       val = readl(edp->regs + BUF_DATA_0);
+       *data = (unsigned char)(val & 0xff);
+
+       return retval;
+}
+
+int rockchip_edp_write_bytes_to_dpcd(struct rockchip_edp_device *edp,
+                                    unsigned int val_addr,
+                                    unsigned int count,
+                                    unsigned char data[])
+{
+       u32 val;
+       unsigned int start_offset;
+       unsigned int cur_data_count;
+       unsigned int cur_data_idx;
+       int i;
+       int retval = 0;
+
+       /* Clear AUX CH data buffer */
+       val = BUF_CLR;
+       writel(val, edp->regs + BUFFER_DATA_CTL);
+
+       start_offset = 0;
+       while (start_offset < count) {
+               /* Buffer size of AUX CH is 16 * 4bytes */
+               if ((count - start_offset) > 16)
+                       cur_data_count = 16;
+               else
+                       cur_data_count = count - start_offset;
+
+               for (i = 0; i < 10; i++) {
+                       /* Select DPCD device address */
+                       val = AUX_ADDR_7_0(val_addr + start_offset);
+                       writel(val, edp->regs + DP_AUX_ADDR_7_0);
+                       val = AUX_ADDR_15_8(val_addr + start_offset);
+                       writel(val, edp->regs + DP_AUX_ADDR_15_8);
+                       val = AUX_ADDR_19_16(val_addr + start_offset);
+                       writel(val, edp->regs + DP_AUX_ADDR_19_16);
+
+                       for (cur_data_idx = 0; cur_data_idx < cur_data_count;
+                            cur_data_idx++) {
+                               val = data[start_offset + cur_data_idx];
+                               writel(val, edp->regs + BUF_DATA_0
+                                                         + 4 * cur_data_idx);
+                       }
+
+                       /*
+                        * Set DisplayPort transaction and write
+                        * If bit 3 is 1, DisplayPort transaction.
+                        * If Bit 3 is 0, I2C transaction.
+                        */
+                       val = AUX_LENGTH(cur_data_count) |
+                               AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
+                       writel(val, edp->regs + AUX_CH_CTL_1);
+
+                       /* Start AUX transaction */
+                       retval = rockchip_edp_start_aux_transaction(edp);
+                       if (retval == 0)
+                               break;
+
+                       dev_dbg(edp->dev, "Aux Transaction fail!\n");
+               }
+
+               start_offset += cur_data_count;
+       }
+
+       return retval;
+}
+
+int rockchip_edp_read_bytes_from_dpcd(struct rockchip_edp_device *edp,
+                                     unsigned int val_addr,
+                                     unsigned int count,
+                                     unsigned char data[])
+{
+       u32 val;
+       unsigned int start_offset;
+       unsigned int cur_data_count;
+       unsigned int cur_data_idx;
+       int i;
+       int retval = 0;
+
+       /* Clear AUX CH data buffer */
+       val = BUF_CLR;
+       writel(val, edp->regs + BUFFER_DATA_CTL);
+
+       start_offset = 0;
+       while (start_offset < count) {
+               /* Buffer size of AUX CH is 16 * 4bytes */
+               if ((count - start_offset) > 16)
+                       cur_data_count = 16;
+               else
+                       cur_data_count = count - start_offset;
+
+               /* AUX CH Request Transaction process */
+               for (i = 0; i < 10; i++) {
+                       /* Select DPCD device address */
+                       val = AUX_ADDR_7_0(val_addr + start_offset);
+                       writel(val, edp->regs + DP_AUX_ADDR_7_0);
+                       val = AUX_ADDR_15_8(val_addr + start_offset);
+                       writel(val, edp->regs + DP_AUX_ADDR_15_8);
+                       val = AUX_ADDR_19_16(val_addr + start_offset);
+                       writel(val, edp->regs + DP_AUX_ADDR_19_16);
+
+                       /*
+                        * Set DisplayPort transaction and read
+                        * If bit 3 is 1, DisplayPort transaction.
+                        * If Bit 3 is 0, I2C transaction.
+                        */
+                       val = AUX_LENGTH(cur_data_count) |
+                               AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
+                       writel(val, edp->regs + AUX_CH_CTL_1);
+
+                       /* Start AUX transaction */
+                       retval = rockchip_edp_start_aux_transaction(edp);
+                       if (retval == 0)
+                               break;
+
+                       dev_dbg(edp->dev, "Aux Transaction fail!\n");
+               }
+
+               for (cur_data_idx = 0; cur_data_idx < cur_data_count;
+                   cur_data_idx++) {
+                       val = readl(edp->regs + BUF_DATA_0
+                                                + 4 * cur_data_idx);
+                       data[start_offset + cur_data_idx] =
+                               (unsigned char)val;
+               }
+
+               start_offset += cur_data_count;
+       }
+
+       return retval;
+}
+
+int rockchip_edp_select_i2c_device(struct rockchip_edp_device *edp,
+                                  unsigned int device_addr,
+                                  unsigned int val_addr)
+{
+       u32 val;
+       int retval;
+
+       /* Set EDID device address */
+       val = device_addr;
+       writel(val, edp->regs + DP_AUX_ADDR_7_0);
+       writel(0x0, edp->regs + DP_AUX_ADDR_15_8);
+       writel(0x0, edp->regs + DP_AUX_ADDR_19_16);
+
+       /* Set offset from base address of EDID device */
+       writel(val_addr, edp->regs + BUF_DATA_0);
+
+       /*
+        * Set I2C transaction and write address
+        * If bit 3 is 1, DisplayPort transaction.
+        * If Bit 3 is 0, I2C transaction.
+        */
+       val = AUX_TX_COMM_I2C_TRANSACTION | AUX_TX_COMM_MOT |
+               AUX_TX_COMM_WRITE;
+       writel(val, edp->regs + AUX_CH_CTL_1);
+
+       /* Start AUX transaction */
+       retval = rockchip_edp_start_aux_transaction(edp);
+       if (retval != 0)
+               dev_dbg(edp->dev, "Aux Transaction fail!\n");
+
+       return retval;
+}
+
+int rockchip_edp_read_byte_from_i2c(struct rockchip_edp_device *edp,
+                                   unsigned int device_addr,
+                                   unsigned int val_addr,
+                                   unsigned int *data)
+{
+       u32 val;
+       int i;
+       int retval;
+
+       for (i = 0; i < 10; i++) {
+               /* Clear AUX CH data buffer */
+               val = BUF_CLR;
+               writel(val, edp->regs + BUFFER_DATA_CTL);
+
+               /* Select EDID device */
+               retval = rockchip_edp_select_i2c_device(edp,
+                                                       device_addr,
+                                                       val_addr);
+               if (retval != 0) {
+                       dev_err(edp->dev, "Select EDID device fail!\n");
+                       continue;
+               }
+
+               /*
+                * Set I2C transaction and read data
+                * If bit 3 is 1, DisplayPort transaction.
+                * If Bit 3 is 0, I2C transaction.
+                */
+               val = AUX_TX_COMM_I2C_TRANSACTION | AUX_TX_COMM_READ;
+               writel(val, edp->regs + AUX_CH_CTL_1);
+
+               /* Start AUX transaction */
+               retval = rockchip_edp_start_aux_transaction(edp);
+               if (retval == 0)
+                       break;
+
+               dev_dbg(edp->dev, "Aux Transaction fail!\n");
+       }
+
+       /* Read data */
+       if (retval == 0)
+               *data = readl(edp->regs + BUF_DATA_0);
+
+       return retval;
+}
+
+int rockchip_edp_read_bytes_from_i2c(struct rockchip_edp_device *edp,
+                                    unsigned int device_addr,
+                                    unsigned int val_addr,
+                                    unsigned int count,
+                                    unsigned char edid[])
+{
+       u32 val;
+       unsigned int i, j;
+       unsigned int cur_data_idx;
+       unsigned int defer = 0;
+       int retval = 0;
+
+       for (i = 0; i < count; i += 16) {
+               for (j = 0; j < 100; j++) {
+                       /* Clear AUX CH data buffer */
+                       val = BUF_CLR;
+                       writel(val, edp->regs + BUFFER_DATA_CTL);
+
+                       /* Set normal AUX CH command */
+                       val = readl(edp->regs + AUX_CH_CTL_2);
+                       val &= ~ADDR_ONLY;
+                       writel(val, edp->regs + AUX_CH_CTL_2);
+
+                       /*
+                        * If Rx sends defer, Tx sends only reads
+                        * request without sending addres
+                        */
+                       if (!defer)
+                               retval = rockchip_edp_select_i2c_device(
+                                               edp, device_addr, val_addr + i);
+                       else
+                               defer = 0;
+
+                       /*
+                        * Set I2C transaction and write data
+                        * If bit 3 is 1, DisplayPort transaction.
+                        * If Bit 3 is 0, I2C transaction.
+                        */
+                       val = AUX_LENGTH(16) | AUX_TX_COMM_I2C_TRANSACTION |
+                               AUX_TX_COMM_READ;
+                       writel(val, edp->regs + AUX_CH_CTL_1);
+
+                       /* Start AUX transaction */
+                       retval = rockchip_edp_start_aux_transaction(edp);
+                       if (retval == 0)
+                               break;
+
+                       dev_dbg(edp->dev, "Aux Transaction fail!\n");
+
+                       /* Check if Rx sends defer */
+                       val = readl(edp->regs + AUX_RX_COMM);
+                       if (val == AUX_RX_COMM_AUX_DEFER ||
+                           val == AUX_RX_COMM_I2C_DEFER) {
+                               dev_err(edp->dev, "Defer: %d\n\n", val);
+                               defer = 1;
+                       }
+               }
+
+               for (cur_data_idx = 0; cur_data_idx < 16; cur_data_idx++) {
+                       val = readl(edp->regs + BUF_DATA_0 + 4 * cur_data_idx);
+                       edid[i + cur_data_idx] = (unsigned char)val;
+               }
+       }
+
+       return retval;
+}
+
+void rockchip_edp_set_link_bandwidth(struct rockchip_edp_device *edp,
+                                    u32 bwtype)
+{
+       u32 val;
+
+       val = bwtype;
+       if ((bwtype == DP_LINK_BW_2_7) || (bwtype == DP_LINK_BW_1_62))
+               writel(val, edp->regs + LINK_BW_SET);
+}
+
+void rockchip_edp_get_link_bandwidth(struct rockchip_edp_device *edp,
+                                    u32 *bwtype)
+{
+       u32 val;
+
+       val = readl(edp->regs + LINK_BW_SET);
+       *bwtype = val;
+}
+
+void rockchip_edp_hw_link_training_en(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = HW_LT_EN;
+       writel(val, edp->regs + HW_LT_CTL);
+}
+
+int rockchip_edp_wait_hw_lt_done(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + DP_INT_STA);
+       if (val&HW_LT_DONE) {
+               writel(val, edp->regs + DP_INT_STA);
+               return 0;
+       }
+
+       return 1;
+}
+
+int rockchip_edp_get_hw_lt_status(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + HW_LT_CTL);
+
+       return (val & HW_LT_ERR_CODE_MASK) >> 4;
+}
+
+void rockchip_edp_set_lane_count(struct rockchip_edp_device *edp, u32 count)
+{
+       u32 val;
+
+       val = count;
+       writel(val, edp->regs + LANE_CNT_SET);
+}
+
+void rockchip_edp_get_lane_count(struct rockchip_edp_device *edp, u32 *count)
+{
+       u32 val;
+
+       val = readl(edp->regs + LANE_CNT_SET);
+       *count = val;
+}
+
+void rockchip_edp_enable_enhanced_mode(struct rockchip_edp_device *edp,
+                                      bool enable)
+{
+       u32 val;
+
+       if (enable) {
+               val = readl(edp->regs + SYS_CTL_4);
+               val |= ENHANCED;
+               writel(val, edp->regs + SYS_CTL_4);
+       } else {
+               val = readl(edp->regs + SYS_CTL_4);
+               val &= ~ENHANCED;
+               writel(val, edp->regs + SYS_CTL_4);
+       }
+}
+
+void rockchip_edp_set_training_pattern(struct rockchip_edp_device *edp,
+                                      enum pattern_set pattern)
+{
+       u32 val;
+
+       switch (pattern) {
+       case PRBS7:
+               val = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_PRBS7;
+               writel(val, edp->regs + TRAINING_PTN_SET);
+               break;
+       case D10_2:
+               val = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_D10_2;
+               writel(val, edp->regs + TRAINING_PTN_SET);
+               break;
+       case TRAINING_PTN1:
+               val = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN1;
+               writel(val, edp->regs + TRAINING_PTN_SET);
+               break;
+       case TRAINING_PTN2:
+               val = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN2;
+               writel(val, edp->regs + TRAINING_PTN_SET);
+               break;
+       case DP_NONE:
+               val = SCRAMBLING_ENABLE |
+                       LINK_QUAL_PATTERN_SET_DISABLE |
+                       SW_TRAINING_PATTERN_SET_DISABLE;
+               writel(val, edp->regs + TRAINING_PTN_SET);
+               break;
+       default:
+               break;
+       }
+}
+
+void rockchip_edp_set_lane0_pre_emphasis(struct rockchip_edp_device *edp,
+                                        u32 level)
+{
+       u32 val;
+
+       val = level << PRE_EMPHASIS_SET_SHIFT;
+       writel(val, edp->regs + LN0_LINK_TRAINING_CTL);
+}
+
+void rockchip_edp_set_lane1_pre_emphasis(struct rockchip_edp_device *edp,
+                                        u32 level)
+{
+       u32 val;
+
+       val = level << PRE_EMPHASIS_SET_SHIFT;
+       writel(val, edp->regs + LN1_LINK_TRAINING_CTL);
+}
+
+void rockchip_edp_set_lane2_pre_emphasis(struct rockchip_edp_device *edp,
+                                        u32 level)
+{
+       u32 val;
+
+       val = level << PRE_EMPHASIS_SET_SHIFT;
+       writel(val, edp->regs + LN2_LINK_TRAINING_CTL);
+}
+
+void rockchip_edp_set_lane3_pre_emphasis(struct rockchip_edp_device *edp,
+                                        u32 level)
+{
+       u32 val;
+
+       val = level << PRE_EMPHASIS_SET_SHIFT;
+       writel(val, edp->regs + LN3_LINK_TRAINING_CTL);
+}
+
+void rockchip_edp_set_lane0_link_training(struct rockchip_edp_device *edp,
+                                         u32 training_lane)
+{
+       u32 val;
+
+       val = training_lane;
+       writel(val, edp->regs + LN0_LINK_TRAINING_CTL);
+}
+
+void rockchip_edp_set_lane1_link_training(struct rockchip_edp_device *edp,
+                                         u32 training_lane)
+{
+       u32 val;
+
+       val = training_lane;
+       writel(val, edp->regs + LN1_LINK_TRAINING_CTL);
+}
+
+void rockchip_edp_set_lane2_link_training(struct rockchip_edp_device *edp,
+                                         u32 training_lane)
+{
+       u32 val;
+
+       val = training_lane;
+       writel(val, edp->regs + LN2_LINK_TRAINING_CTL);
+}
+
+void rockchip_edp_set_lane3_link_training(struct rockchip_edp_device *edp,
+                                         u32 training_lane)
+{
+       u32 val;
+
+       val = training_lane;
+       writel(val, edp->regs + LN3_LINK_TRAINING_CTL);
+}
+
+u32 rockchip_edp_get_lane0_link_training(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + LN0_LINK_TRAINING_CTL);
+       return val;
+}
+
+u32 rockchip_edp_get_lane1_link_training(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + LN1_LINK_TRAINING_CTL);
+       return val;
+}
+
+u32 rockchip_edp_get_lane2_link_training(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + LN2_LINK_TRAINING_CTL);
+       return val;
+}
+
+u32 rockchip_edp_get_lane3_link_training(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + LN3_LINK_TRAINING_CTL);
+       return val;
+}
+
+void rockchip_edp_reset_macro(struct rockchip_edp_device *edp)
+{
+}
+
+int rockchip_edp_init_video(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = VSYNC_DET | VID_FORMAT_CHG | VID_CLK_CHG;
+       writel(val, edp->regs + COMMON_INT_STA_1);
+
+       val = 0x0;
+       writel(val, edp->regs + SYS_CTL_1);
+
+       val = CHA_CRI(4) | CHA_CTRL;
+       writel(val, edp->regs + SYS_CTL_2);
+
+       val = VID_HRES_TH(2) | VID_VRES_TH(0);
+       writel(val, edp->regs + VIDEO_CTL_8);
+
+       return 0;
+}
+
+void rockchip_edp_set_video_color_format(struct rockchip_edp_device *edp,
+                                        u32 color_dedpth,
+                                        u32 color_space,
+                                        u32 dynamic_range,
+                                        u32 coeff)
+{
+       u32 val;
+
+       /* Configure the input color dedpth, color space, dynamic range */
+       val = (dynamic_range << IN_D_RANGE_SHIFT) |
+               (color_dedpth << IN_BPC_SHIFT) |
+               (color_space << IN_COLOR_F_SHIFT);
+       writel(val, edp->regs + VIDEO_CTL_2);
+
+       /* Set Input Color YCbCr Coefficients to ITU601 or ITU709 */
+       val = readl(edp->regs + VIDEO_CTL_3);
+       val &= ~IN_YC_COEFFI_MASK;
+       if (coeff)
+               val |= IN_YC_COEFFI_ITU709;
+       else
+               val |= IN_YC_COEFFI_ITU601;
+       writel(val, edp->regs + VIDEO_CTL_3);
+}
+
+int rockchip_edp_is_slave_video_stream_clock_on(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + SYS_CTL_1);
+       writel(val, edp->regs + SYS_CTL_1);
+
+       val = readl(edp->regs + SYS_CTL_1);
+
+       if (!(val & DET_STA)) {
+               dev_dbg(edp->dev, "Input stream clock not detected.\n");
+               return -EINVAL;
+       }
+
+       val = readl(edp->regs + SYS_CTL_2);
+       writel(val, edp->regs + SYS_CTL_2);
+
+       val = readl(edp->regs + SYS_CTL_2);
+       if (val & CHA_STA) {
+               dev_dbg(edp->dev, "Input stream clk is changing\n");
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+void rockchip_edp_set_video_cr_mn(struct rockchip_edp_device *edp,
+                                 enum clock_recovery_m_value_type type,
+                                 u32 m_value,
+                                 u32 n_value)
+{
+       u32 val;
+
+       if (type == REGISTER_M) {
+               val = readl(edp->regs + SYS_CTL_4);
+               val |= FIX_M_VID;
+               writel(val, edp->regs + SYS_CTL_4);
+               val = m_value & 0xff;
+               writel(val, edp->regs + M_VID_0);
+               val = (m_value >> 8) & 0xff;
+               writel(val, edp->regs + M_VID_1);
+               val = (m_value >> 16) & 0xff;
+               writel(val, edp->regs + M_VID_2);
+
+               val = n_value & 0xff;
+               writel(val, edp->regs + N_VID_0);
+               val = (n_value >> 8) & 0xff;
+               writel(val, edp->regs + N_VID_1);
+               val = (n_value >> 16) & 0xff;
+               writel(val, edp->regs + N_VID_2);
+       } else  {
+               val = readl(edp->regs + SYS_CTL_4);
+               val &= ~FIX_M_VID;
+               writel(val, edp->regs + SYS_CTL_4);
+
+               writel(0x00, edp->regs + N_VID_0);
+               writel(0x80, edp->regs + N_VID_1);
+               writel(0x00, edp->regs + N_VID_2);
+       }
+}
+
+void rockchip_edp_set_video_timing_mode(struct rockchip_edp_device *edp,
+                                       u32 type)
+{
+       u32 val;
+
+       if (type == VIDEO_TIMING_FROM_CAPTURE) {
+               val = readl(edp->regs + VIDEO_CTL_10);
+               val &= ~F_SEL;
+               writel(val, edp->regs + VIDEO_CTL_10);
+       } else {
+               val = readl(edp->regs + VIDEO_CTL_10);
+               val |= F_SEL;
+               writel(val, edp->regs + VIDEO_CTL_10);
+       }
+}
+
+int rockchip_edp_bist_cfg(struct rockchip_edp_device *edp)
+{
+       struct video_info *video_info = &edp->video_info;
+       struct drm_display_mode *mode = &edp->mode;
+       u16 x_total, y_total, x_act;
+       u32 val;
+
+       x_total = mode->htotal;
+       y_total = mode->vtotal;
+       x_act = mode->hdisplay;
+
+       rockchip_edp_set_video_cr_mn(edp, CALCULATED_M, 0, 0);
+       rockchip_edp_set_video_color_format(edp, video_info->color_depth,
+                                           video_info->color_space,
+                                           video_info->dynamic_range,
+                                           video_info->ycbcr_coeff);
+
+       val = y_total & 0xff;
+       writel(val, edp->regs + TOTAL_LINE_CFG_L);
+       val = (y_total >> 8);
+       writel(val, edp->regs + TOTAL_LINE_CFG_H);
+       val = (mode->vdisplay & 0xff);
+       writel(val, edp->regs + ATV_LINE_CFG_L);
+       val = (mode->vdisplay >> 8);
+       writel(val, edp->regs + ATV_LINE_CFG_H);
+       val = (mode->vsync_start - mode->vdisplay);
+       writel(val, edp->regs + VF_PORCH_REG);
+       val = (mode->vsync_end - mode->vsync_start);
+       writel(val, edp->regs + VSYNC_CFG_REG);
+       val = (mode->vtotal - mode->vsync_end);
+       writel(val, edp->regs + VB_PORCH_REG);
+       val = x_total & 0xff;
+       writel(val, edp->regs + TOTAL_PIXELL_REG);
+       val = x_total >> 8;
+       writel(val, edp->regs + TOTAL_PIXELH_REG);
+       val = (x_act & 0xff);
+       writel(val, edp->regs + ATV_PIXELL_REG);
+       val = (x_act >> 8);
+       writel(val, edp->regs + ATV_PIXELH_REG);
+       val = (mode->hsync_start - mode->hdisplay) & 0xff;
+       writel(val, edp->regs + HF_PORCHL_REG);
+       val = (mode->hsync_start - mode->hdisplay) >> 8;
+       writel(val, edp->regs + HF_PORCHH_REG);
+       val = (mode->hsync_end - mode->hsync_start) & 0xff;
+       writel(val, edp->regs + HSYNC_CFGL_REG);
+       val = (mode->hsync_end - mode->hsync_start) >> 8;
+       writel(val, edp->regs + HSYNC_CFGH_REG);
+       val = (mode->htotal - mode->hsync_end) & 0xff;
+       writel(val, edp->regs + HB_PORCHL_REG);
+       val = (mode->htotal - mode->hsync_end)  >> 8;
+       writel(val, edp->regs + HB_PORCHH_REG);
+
+       val = BIST_EN | BIST_WH_64 | BIST_TYPE_COLR_BAR;
+       writel(val, edp->regs + VIDEO_CTL_4);
+
+       val = readl(edp->regs + VIDEO_CTL_10);
+       val &= ~F_SEL;
+       writel(val, edp->regs + VIDEO_CTL_10);
+       return 0;
+}
+
+void rockchip_edp_enable_video_master(struct rockchip_edp_device *edp,
+                                     bool enable)
+{
+}
+
+void rockchip_edp_start_video(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + VIDEO_CTL_1);
+       val |= VIDEO_EN;
+       writel(val, edp->regs + VIDEO_CTL_1);
+}
+
+int rockchip_edp_is_video_stream_on(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + SYS_CTL_3);
+       writel(val, edp->regs + SYS_CTL_3);
+
+       val = readl(edp->regs + SYS_CTL_3);
+       if (!(val & STRM_VALID)) {
+               dev_dbg(edp->dev, "Input video stream is not detected.\n");
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+void rockchip_edp_config_video_slave_mode(struct rockchip_edp_device *edp,
+                                         struct video_info *video_info)
+{
+       u32 val;
+
+       val = readl(edp->regs + FUNC_EN_1);
+       val &= ~(VID_FIFO_FUNC_EN_N | VID_CAP_FUNC_EN_N);
+       writel(val, edp->regs + FUNC_EN_1);
+
+       val = readl(edp->regs + VIDEO_CTL_10);
+       val &= ~INTERACE_SCAN_CFG;
+       val |= (video_info->interlaced << 2);
+       writel(val, edp->regs + VIDEO_CTL_10);
+
+       val = readl(edp->regs + VIDEO_CTL_10);
+       val &= ~VSYNC_POLARITY_CFG;
+       val |= (video_info->v_sync_polarity << 1);
+       writel(val, edp->regs + VIDEO_CTL_10);
+
+       val = readl(edp->regs + VIDEO_CTL_10);
+       val &= ~HSYNC_POLARITY_CFG;
+       val |= (video_info->h_sync_polarity << 0);
+       writel(val, edp->regs + VIDEO_CTL_10);
+}
+
+void rockchip_edp_enable_scrambling(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + TRAINING_PTN_SET);
+       val &= ~SCRAMBLING_DISABLE;
+       writel(val, edp->regs + TRAINING_PTN_SET);
+}
+
+void rockchip_edp_disable_scrambling(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = readl(edp->regs + TRAINING_PTN_SET);
+       val |= SCRAMBLING_DISABLE;
+       writel(val, edp->regs + TRAINING_PTN_SET);
+}
+
+enum dp_irq_type rockchip_edp_get_irq_type(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       /* Parse hotplug interrupt status register */
+       val = readl(edp->regs + COMMON_INT_STA_4);
+       if (val & PLUG)
+               return DP_IRQ_TYPE_HP_CABLE_IN;
+
+       if (val & HPD_LOST)
+               return DP_IRQ_TYPE_HP_CABLE_OUT;
+
+       if (val & HOTPLUG_CHG)
+               return DP_IRQ_TYPE_HP_CHANGE;
+
+       return DP_IRQ_TYPE_UNKNOWN;
+}
+
+void rockchip_edp_clear_hotplug_interrupts(struct rockchip_edp_device *edp)
+{
+       u32 val;
+
+       val = HOTPLUG_CHG | HPD_LOST | PLUG;
+       writel(val, edp->regs + COMMON_INT_STA_4);
+
+       val = INT_HPD;
+       writel(val, edp->regs + DP_INT_STA);
+}
diff --git a/drivers/gpu/drm/rockchip/rockchip_edp_reg.h b/drivers/gpu/drm/rockchip/rockchip_edp_reg.h
new file mode 100644
index 0000000..b50dd47
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/rockchip_edp_reg.h
@@ -0,0 +1,345 @@
+/*
+* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+* Author:
+*      Andy yan <andy.yan@xxxxxxxxxxxxxx>
+*      Jeff chen <jeff.chen@xxxxxxxxxxxxxx>
+*
+* based on exynos_dp_reg.h
+*
+* This program is free software; you can redistribute it and/or modify it
+* under the terms of the GNU General Public License as published by the
+* Free Software Foundation; either version 2 of the License, or (at your
+* option) any later version.
+*/
+
+#ifndef _ROCKCHIP_EDP_REG_H
+#define _ROCKCHIP_EDP_REG_H
+
+#include <linux/bitops.h>
+
+#define TX_SW_RST                              0x14
+#define FUNC_EN_1                              0x18
+#define FUNC_EN_2                              0x1C
+#define VIDEO_CTL_1                            0x20
+#define VIDEO_CTL_2                            0x24
+#define VIDEO_CTL_3                            0x28
+#define VIDEO_CTL_4                            0x2c
+#define VIDEO_CTL_8                            0x3C
+#define VIDEO_CTL_10                           0x44
+#define TOTAL_LINE_CFG_L                       0x48
+#define TOTAL_LINE_CFG_H                       0x4c
+#define ATV_LINE_CFG_L                         0x50
+#define ATV_LINE_CFG_H                         0x54
+#define VF_PORCH_REG                           0x58
+#define VSYNC_CFG_REG                          0x5c
+#define VB_PORCH_REG                           0x60
+#define TOTAL_PIXELL_REG                       0x64
+#define TOTAL_PIXELH_REG                       0x68
+#define ATV_PIXELL_REG                         0x6c
+#define ATV_PIXELH_REG                         0x70
+#define HF_PORCHL_REG                          0x74
+#define HF_PORCHH_REG                          0x78
+#define HSYNC_CFGL_REG                         0x7c
+#define HSYNC_CFGH_REG                         0x80
+#define HB_PORCHL_REG                          0x84
+#define HB_PORCHH_REG                          0x88
+#define PLL_REG_1                              0xfc
+
+#define SSC_REG                                        0x104
+#define TX_REG_COMMON                          0x114
+#define DP_AUX                                 0x120
+#define DP_BIAS                                        0x124
+#define DP_PWRDN                               0x12c
+#define DP_RESERVE2                            0x134
+
+#define LANE_MAP                               0x35C
+#define ANALOG_CTL_2                           0x374
+#define AUX_HW_RETRY_CTL                       0x390
+#define COMMON_INT_STA_1                       0x3C4
+#define COMMON_INT_STA_2                       0x3C8
+#define COMMON_INT_STA_3                       0x3CC
+#define COMMON_INT_STA_4                       0x3D0
+#define DP_INT_STA                             0x3DC
+#define COMMON_INT_MASK_1                      0x3E0
+#define COMMON_INT_MASK_2                      0x3E4
+#define COMMON_INT_MASK_3                      0x3E8
+#define COMMON_INT_MASK_4                      0x3EC
+#define DP_INT_STA_MASK                                0x3F8
+
+#define SYS_CTL_1                              0x600
+#define SYS_CTL_2                              0x604
+#define SYS_CTL_3                              0x608
+#define SYS_CTL_4                              0x60C
+#define PKT_SEND_CTL                           0x640
+#define HDCP_CTL                               0x648
+#define LINK_BW_SET                            0x680
+#define LANE_CNT_SET                           0x684
+#define TRAINING_PTN_SET                       0x688
+#define LN0_LINK_TRAINING_CTL                  0x68C
+#define LN1_LINK_TRAINING_CTL                  0x690
+#define LN2_LINK_TRAINING_CTL                  0x694
+#define LN3_LINK_TRAINING_CTL                  0x698
+#define HW_LT_CTL                              0x6a0
+#define DEBUG_CTL                              0x6C0
+#define HPD_DEGLITCH_L                         0x6C4
+#define HPD_DEGLITCH_H                         0x6C8
+#define LINK_DEBUG_CTL                         0x6E0
+#define M_VID_0                                        0x700
+#define M_VID_1                                        0x704
+#define M_VID_2                                        0x708
+#define N_VID_0                                        0x70C
+#define N_VID_1                                        0x710
+#define N_VID_2                                        0x714
+#define VIDEO_FIFO_THRD                                0x730
+#define AUDIO_MARGIN                           0x73C
+#define M_VID_GEN_FILTER_TH                    0x764
+#define M_AUD_GEN_FILTER_TH                    0x778
+#define AUX_CH_STA                             0x780
+#define AUX_CH_DEFER_CTL                       0x788
+#define AUX_RX_COMM                            0x78C
+#define BUFFER_DATA_CTL                                0x790
+#define AUX_CH_CTL_1                           0x794
+#define DP_AUX_ADDR_7_0                                0x798
+#define DP_AUX_ADDR_15_8                       0x79C
+#define DP_AUX_ADDR_19_16                      0x7A0
+#define AUX_CH_CTL_2                           0x7A4
+#define BUF_DATA_0                             0x7C0
+#define SOC_GENERAL_CTL                                0x800
+#define PLL_REG_2                              0x9e4
+#define PLL_REG_3                              0x9e8
+#define PLL_REG_4                              0x9ec
+#define PLL_REG_5                              0xa00
+
+/* ROCKCHIP_EDP_FUNC_EN_1 */
+#define VID_CAP_FUNC_EN_N                      BIT(6)
+#define VID_FIFO_FUNC_EN_N                     BIT(5)
+#define AUD_FIFO_FUNC_EN_N                     BIT(4)
+#define AUD_FUNC_EN_N                          BIT(3)
+#define HDCP_FUNC_EN_N                         BIT(2)
+#define SW_FUNC_EN_N                           BIT(0)
+
+/* ROCKCHIP_EDP_FUNC_EN_2 */
+#define SSC_FUNC_EN_N                          BIT(7)
+#define AUX_FUNC_EN_N                          BIT(2)
+#define SERDES_FIFO_FUNC_EN_N                  BIT(1)
+#define LS_CLK_DOMAIN_FUNC_EN_N                        BIT(0)
+
+/* ROCKCHIP_EDP_VIDEO_CTL_1 */
+#define VIDEO_EN                               BIT(7)
+#define VIDEO_MUTE                             BIT(6)
+
+/* ROCKCHIP_EDP_VIDEO_CTL_1 */
+#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)
+
+/* ROCKCHIP_EDP_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)
+
+/* ROCKCHIP_EDP_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)
+
+/* ROCKCHIP_EDP_VIDEO_CTL_8 */
+#define VID_HRES_TH(x)                         (((x) & 0xf) << 4)
+#define VID_VRES_TH(x)                         (((x) & 0xf) << 0)
+
+/* ROCKCHIP_EDP_VIDEO_CTL_10 */
+#define F_SEL                                  (0x1 << 4)
+#define INTERACE_SCAN_CFG                      (0x1 << 2)
+#define VSYNC_POLARITY_CFG                     (0x1 << 1)
+#define HSYNC_POLARITY_CFG                     (0x1 << 0)
+
+/* ROCKCHIP_EDP_PLL_REG_1 */
+#define REF_CLK_24M                            (0x1 << 1)
+#define REF_CLK_27M                            (0x0 << 1)
+
+/* ROCKCHIP_EDP_DP_PWRDN */
+#define PD_INC_BG                              BIT(7)
+#define PD_EXP_BG                              BIT(6)
+#define PD_AUX                                 BIT(5)
+#define PD_PLL                                 BIT(4)
+#define PD_CH3                                 BIT(3)
+#define PD_CH2                                 BIT(2)
+#define PD_CH1                                 BIT(1)
+#define PD_CH0                                 BIT(0)
+
+/* ROCKCHIP_EDP_LANE_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)
+
+/* ROCKCHIP_EDP_ANALOG_CTL_2 */
+#define SEL_24M                                        (0x1 << 3)
+
+/* ROCKCHIP_EDP_COMMON_INT_STA_1 */
+#define VSYNC_DET                              BIT(7)
+#define PLL_LOCK_CHG                           BIT(6)
+#define SPDIF_ERR                              BIT(5)
+#define SPDIF_UNSTBL                           BIT(4)
+#define VID_FORMAT_CHG                         BIT(3)
+#define AUD_CLK_CHG                            BIT(2)
+#define VID_CLK_CHG                            BIT(1)
+#define SW_INT                                 BIT(0)
+
+/* ROCKCHIP_EDP_COMMON_INT_STA_2 */
+#define ENC_EN_CHG                             BIT(6)
+#define HW_BKSV_RDY                            BIT(3)
+#define HW_SHA_DONE                            BIT(2)
+#define HW_AUTH_STATE_CHG                      BIT(1)
+#define HW_AUTH_DONE                           BIT(0)
+
+/* ROCKCHIP_EDP_COMMON_INT_STA_3 */
+#define AFIFO_UNDER                            BIT(7)
+#define AFIFO_OVER                             BIT(6)
+#define R0_CHK_FLAG                            BIT(5)
+
+/* ROCKCHIP_EDP_COMMON_INT_STA_4 */
+#define PSR_ACTIVE                             BIT(7)
+#define PSR_INACTIVE                           BIT(6)
+#define SPDIF_BI_PHASE_ERR                     BIT(5)
+#define HOTPLUG_CHG                            BIT(2)
+#define HPD_LOST                               BIT(1)
+#define PLUG                                   BIT(0)
+
+/* ROCKCHIP_EDP_INT_STA */
+#define INT_HPD                                        BIT(6)
+#define HW_LT_DONE                             BIT(5)
+#define SINK_LOST                              BIT(3)
+#define LINK_LOST                              BIT(2)
+#define RPLY_RECEIV                            BIT(1)
+#define AUX_ERR                                        BIT(0)
+
+/* ROCKCHIP_EDP_INT_CTL */
+#define INT_CTL                                        0x3FC
+#define SOFT_INT_CTRL                          BIT(2)
+#define INT_POL                                        BIT(0)
+
+/* ROCKCHIP_EDP_SYS_CTL_1 */
+#define DET_STA                                        BIT(2)
+#define FORCE_DET                              BIT(1)
+#define DET_CTRL                               BIT(0)
+
+/* ROCKCHIP_EDP_SYS_CTL_2 */
+#define CHA_CRI(x)                             (((x) & 0xf) << 4)
+#define CHA_STA                                        BIT(2)
+#define FORCE_CHA                              BIT(1)
+#define CHA_CTRL                               BIT(0)
+
+/* ROCKCHIP_EDP_SYS_CTL_3 */
+#define HPD_STATUS                             BIT(6)
+#define F_HPD                                  BIT(5)
+#define HPD_CTRL                               BIT(4)
+#define HDCP_RDY                               BIT(3)
+#define STRM_VALID                             BIT(2)
+#define F_VALID                                        BIT(1)
+#define VALID_CTRL                             BIT(0)
+
+/* ROCKCHIP_EDP_SYS_CTL_4 */
+#define FIX_M_AUD                              BIT(4)
+#define ENHANCED                               BIT(3)
+#define FIX_M_VID                              BIT(2)
+#define M_VID_UPDATE_CTRL                      BIT(0)
+
+/* ROCKCHIP_EDP_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_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)
+
+/* ROCKCHIP_EDP_HW_LT_CTL */
+#define HW_LT_ERR_CODE_MASK                    0x70
+#define HW_LT_EN                               BIT(0)
+
+/* ROCKCHIP_EDP_LN0_LINK_TRAINING_CTL */
+#define PRE_EMPHASIS_SET_MASK                  (0x3 << 3)
+#define PRE_EMPHASIS_SET_SHIFT                 (3)
+
+/* ROCKCHIP_EDP_DEBUG_CTL */
+#define PLL_LOCK                               BIT(4)
+#define F_PLL_LOCK                             BIT(3)
+#define PLL_LOCK_CTRL                          BIT(2)
+#define POLL_EN                                        BIT(1)
+#define PN_INV                                 BIT(0)
+
+/* ROCKCHIP_EDP_AUX_CH_STA */
+#define AUX_BUSY                               (0x1 << 4)
+#define AUX_STATUS_MASK                                (0xf << 0)
+
+/* ROCKCHIP_EDP_AUX_CH_DEFER_CTL */
+#define DEFER_CTRL_EN                          (0x1 << 7)
+#define DEFER_COUNT(x)                         (((x) & 0x7f) << 0)
+
+/* ROCKCHIP_EDP_AUX_RX_COMM */
+#define AUX_RX_COMM_I2C_DEFER                  (0x2 << 2)
+#define AUX_RX_COMM_AUX_DEFER                  (0x2 << 0)
+
+/* ROCKCHIP_EDP_BUFFER_DATA_CTL */
+#define BUF_CLR                                        (0x1 << 7)
+#define BUF_DATA_COUNT(x)                      (((x) & 0xf) << 0)
+
+/* ROCKCHIP_EDP_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)
+
+/* OCKCHIP_EDP_AUX_ADDR_7_0 */
+#define AUX_ADDR_7_0(x)                        (((x) >> 0) & 0xff)
+
+/* ROCKCHIP_EDP_AUX_ADDR_15_8 */
+#define AUX_ADDR_15_8(x)               (((x) >> 8) & 0xff)
+
+/* ROCKCHIP_EDP_AUX_ADDR_19_16 */
+#define AUX_ADDR_19_16(x)              (((x) >> 16) & 0x0f)
+
+/* ROCKCHIP_EDP_AUX_CH_CTL_2 */
+#define ADDR_ONLY                              BIT(1)
+#define AUX_EN                                 BIT(0)
+
+#endif /* _ROCKCHIP_EDP_REG_H */
--
1.7.9.5





--
陈有敏 Jeff Chen

福州瑞芯微电子有限公司
Fuzhou Rockchip Electronics Co.Ltd
地址:福建省福州市铜盘路软件大道89号软件园A区18号楼
No. 18 Building, A District, No.89,software Boulevard Fuzhou,Fujian,PRC
邮编:350003
电话:(86-0591)83991906/83991907-8596
E-mail:cym@xxxxxxxxxxxxxx


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