+* 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
