/*
|
* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
|
* Author:
|
* Sandy Huang <hjc@rock-chips.com>
|
*
|
* This software is licensed under the terms of the GNU General Public
|
* License version 2, as published by the Free Software Foundation, and
|
* may be copied, distributed, and modified under those terms.
|
*
|
* This program is distributed in the hope that it will be useful,
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
* GNU General Public License for more details.
|
*/
|
|
#include <drm/drmP.h>
|
#include <drm/drm_atomic_helper.h>
|
#include <drm/drm_crtc_helper.h>
|
#include <drm/drm_dp_helper.h>
|
#include <drm/drm_panel.h>
|
#include <drm/drm_of.h>
|
|
#include <linux/component.h>
|
#include <linux/of_device.h>
|
#include <linux/of_graph.h>
|
#include <linux/regmap.h>
|
#include <linux/mfd/syscon.h>
|
#include <linux/phy/phy.h>
|
#include <linux/pinctrl/consumer.h>
|
#include <uapi/linux/videodev2.h>
|
|
#include "rockchip_drm_drv.h"
|
#include "rockchip_drm_vop.h"
|
|
#define HIWORD_UPDATE(v, l, h) (((v) << (l)) | (GENMASK(h, l) << 16))
|
|
#define PX30_GRF_PD_VO_CON1 0x0438
|
#define PX30_RGB_DATA_SYNC_BYPASS(v) HIWORD_UPDATE(v, 3, 3)
|
#define PX30_RGB_VOP_SEL(v) HIWORD_UPDATE(v, 2, 2)
|
|
#define RK1808_GRF_PD_VO_CON1 0x0444
|
#define RK1808_RGB_DATA_SYNC_BYPASS(v) HIWORD_UPDATE(v, 3, 3)
|
|
#define RV1126_GRF_IOFUNC_CON3 0x1026c
|
#define RV1126_LCDC_IO_BYPASS(v) HIWORD_UPDATE(v, 0, 0)
|
|
#define RK3288_GRF_SOC_CON6 0x025c
|
#define RK3288_LVDS_LCDC_SEL(x) HIWORD_UPDATE(x, 3, 3)
|
#define RK3288_GRF_SOC_CON7 0x0260
|
#define RK3288_LVDS_PWRDWN(x) HIWORD_UPDATE(x, 15, 15)
|
#define RK3288_LVDS_CON_ENABLE_2(x) HIWORD_UPDATE(x, 12, 12)
|
#define RK3288_LVDS_CON_ENABLE_1(x) HIWORD_UPDATE(x, 11, 11)
|
#define RK3288_LVDS_CON_CLKINV(x) HIWORD_UPDATE(x, 8, 8)
|
#define RK3288_LVDS_CON_TTL_EN(x) HIWORD_UPDATE(x, 6, 6)
|
|
#define RK3568_GRF_VO_CON1 0X0364
|
#define RK3568_RGB_DATA_BYPASS(v) HIWORD_UPDATE(v, 6, 6)
|
|
struct rockchip_rgb;
|
|
struct rockchip_rgb_funcs {
|
void (*enable)(struct rockchip_rgb *rgb);
|
void (*disable)(struct rockchip_rgb *rgb);
|
};
|
|
struct rockchip_rgb {
|
u8 id;
|
struct device *dev;
|
struct drm_panel *panel;
|
struct drm_bridge *bridge;
|
struct drm_connector connector;
|
struct drm_encoder encoder;
|
struct phy *phy;
|
struct regmap *grf;
|
bool data_sync_bypass;
|
const struct rockchip_rgb_funcs *funcs;
|
struct rockchip_drm_sub_dev sub_dev;
|
};
|
|
static inline struct rockchip_rgb *connector_to_rgb(struct drm_connector *c)
|
{
|
return container_of(c, struct rockchip_rgb, connector);
|
}
|
|
static inline struct rockchip_rgb *encoder_to_rgb(struct drm_encoder *e)
|
{
|
return container_of(e, struct rockchip_rgb, encoder);
|
}
|
|
static enum drm_connector_status
|
rockchip_rgb_connector_detect(struct drm_connector *connector, bool force)
|
{
|
return connector_status_connected;
|
}
|
|
static int
|
rockchip_rgb_atomic_connector_get_property(struct drm_connector *connector,
|
const struct drm_connector_state *state,
|
struct drm_property *property,
|
uint64_t *val)
|
{
|
struct rockchip_rgb *rgb = connector_to_rgb(connector);
|
struct rockchip_drm_private *private = connector->dev->dev_private;
|
|
if (property == private->connector_id_prop) {
|
*val = rgb->id;
|
return 0;
|
}
|
|
DRM_ERROR("failed to get rockchip RGB property\n");
|
return -EINVAL;
|
}
|
|
static const struct drm_connector_funcs rockchip_rgb_connector_funcs = {
|
.dpms = drm_helper_connector_dpms,
|
.detect = rockchip_rgb_connector_detect,
|
.fill_modes = drm_helper_probe_single_connector_modes,
|
.destroy = drm_connector_cleanup,
|
.reset = drm_atomic_helper_connector_reset,
|
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
|
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
|
.atomic_get_property = rockchip_rgb_atomic_connector_get_property,
|
};
|
|
static int rockchip_rgb_connector_get_modes(struct drm_connector *connector)
|
{
|
struct rockchip_rgb *rgb = connector_to_rgb(connector);
|
struct drm_panel *panel = rgb->panel;
|
|
return drm_panel_get_modes(panel);
|
}
|
|
static struct drm_encoder *
|
rockchip_rgb_connector_best_encoder(struct drm_connector *connector)
|
{
|
struct rockchip_rgb *rgb = connector_to_rgb(connector);
|
|
return &rgb->encoder;
|
}
|
|
static const
|
struct drm_connector_helper_funcs rockchip_rgb_connector_helper_funcs = {
|
.get_modes = rockchip_rgb_connector_get_modes,
|
.best_encoder = rockchip_rgb_connector_best_encoder,
|
};
|
|
static void rockchip_rgb_encoder_enable(struct drm_encoder *encoder)
|
{
|
struct rockchip_rgb *rgb = encoder_to_rgb(encoder);
|
int ret;
|
|
pinctrl_pm_select_default_state(rgb->dev);
|
|
if (rgb->funcs && rgb->funcs->enable)
|
rgb->funcs->enable(rgb);
|
|
if (rgb->phy) {
|
ret = phy_set_mode(rgb->phy, PHY_MODE_VIDEO_TTL);
|
if (ret) {
|
dev_err(rgb->dev, "failed to set phy mode: %d\n", ret);
|
return;
|
}
|
|
phy_power_on(rgb->phy);
|
}
|
|
if (rgb->panel) {
|
drm_panel_prepare(rgb->panel);
|
drm_panel_enable(rgb->panel);
|
}
|
}
|
|
static void rockchip_rgb_encoder_disable(struct drm_encoder *encoder)
|
{
|
struct rockchip_rgb *rgb = encoder_to_rgb(encoder);
|
|
if (rgb->panel) {
|
drm_panel_disable(rgb->panel);
|
drm_panel_unprepare(rgb->panel);
|
}
|
|
if (rgb->phy)
|
phy_power_off(rgb->phy);
|
|
if (rgb->funcs && rgb->funcs->disable)
|
rgb->funcs->disable(rgb);
|
|
pinctrl_pm_select_sleep_state(rgb->dev);
|
}
|
|
static int
|
rockchip_rgb_encoder_atomic_check(struct drm_encoder *encoder,
|
struct drm_crtc_state *crtc_state,
|
struct drm_connector_state *conn_state)
|
{
|
struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
|
struct drm_connector *connector = conn_state->connector;
|
struct drm_display_info *info = &connector->display_info;
|
|
if (info->num_bus_formats)
|
s->bus_format = info->bus_formats[0];
|
else
|
s->bus_format = MEDIA_BUS_FMT_RGB888_1X24;
|
|
switch (s->bus_format) {
|
case MEDIA_BUS_FMT_RGB666_1X18:
|
s->output_mode = ROCKCHIP_OUT_MODE_P666;
|
s->output_if = VOP_OUTPUT_IF_RGB;
|
break;
|
case MEDIA_BUS_FMT_RGB565_1X16:
|
s->output_mode = ROCKCHIP_OUT_MODE_P565;
|
s->output_if = VOP_OUTPUT_IF_RGB;
|
break;
|
case MEDIA_BUS_FMT_SRGB888_3X8:
|
s->output_mode = ROCKCHIP_OUT_MODE_S888;
|
s->output_if = VOP_OUTPUT_IF_RGB;
|
break;
|
case MEDIA_BUS_FMT_SRGB888_DUMMY_4X8:
|
s->output_mode = ROCKCHIP_OUT_MODE_S888_DUMMY;
|
s->output_if = VOP_OUTPUT_IF_RGB;
|
break;
|
case MEDIA_BUS_FMT_YUYV8_2X8:
|
case MEDIA_BUS_FMT_YVYU8_2X8:
|
case MEDIA_BUS_FMT_UYVY8_2X8:
|
case MEDIA_BUS_FMT_VYUY8_2X8:
|
s->output_mode = ROCKCHIP_OUT_MODE_BT656;
|
s->output_if = VOP_OUTPUT_IF_BT656;
|
break;
|
case MEDIA_BUS_FMT_YUYV8_1X16:
|
case MEDIA_BUS_FMT_YVYU8_1X16:
|
case MEDIA_BUS_FMT_UYVY8_1X16:
|
case MEDIA_BUS_FMT_VYUY8_1X16:
|
s->output_mode = ROCKCHIP_OUT_MODE_BT1120;
|
s->output_if = VOP_OUTPUT_IF_BT1120;
|
break;
|
case MEDIA_BUS_FMT_RGB888_1X24:
|
case MEDIA_BUS_FMT_RGB666_1X24_CPADHI:
|
default:
|
s->output_mode = ROCKCHIP_OUT_MODE_P888;
|
s->output_if = VOP_OUTPUT_IF_RGB;
|
break;
|
}
|
|
s->output_type = DRM_MODE_CONNECTOR_DPI;
|
s->bus_flags = info->bus_flags;
|
s->tv_state = &conn_state->tv;
|
s->eotf = TRADITIONAL_GAMMA_SDR;
|
s->color_space = V4L2_COLORSPACE_DEFAULT;
|
|
return 0;
|
}
|
|
static int rockchip_rgb_encoder_loader_protect(struct drm_encoder *encoder,
|
bool on)
|
{
|
struct rockchip_rgb *rgb = encoder_to_rgb(encoder);
|
|
if (rgb->panel)
|
drm_panel_loader_protect(rgb->panel, on);
|
|
return 0;
|
}
|
|
static const
|
struct drm_encoder_helper_funcs rockchip_rgb_encoder_helper_funcs = {
|
.enable = rockchip_rgb_encoder_enable,
|
.disable = rockchip_rgb_encoder_disable,
|
.atomic_check = rockchip_rgb_encoder_atomic_check,
|
.loader_protect = rockchip_rgb_encoder_loader_protect,
|
};
|
|
static const struct drm_encoder_funcs rockchip_rgb_encoder_funcs = {
|
.destroy = drm_encoder_cleanup,
|
};
|
|
static int rockchip_rgb_bind(struct device *dev, struct device *master,
|
void *data)
|
{
|
struct rockchip_rgb *rgb = dev_get_drvdata(dev);
|
struct drm_device *drm_dev = data;
|
struct drm_encoder *encoder = &rgb->encoder;
|
struct drm_connector *connector;
|
int ret;
|
|
ret = drm_of_find_panel_or_bridge(dev->of_node, 1, -1,
|
&rgb->panel, &rgb->bridge);
|
if (ret) {
|
DRM_DEV_ERROR(dev, "failed to find panel or bridge: %d\n", ret);
|
return ret;
|
}
|
|
encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev,
|
dev->of_node);
|
|
ret = drm_encoder_init(drm_dev, encoder, &rockchip_rgb_encoder_funcs,
|
DRM_MODE_ENCODER_DPI, NULL);
|
if (ret < 0) {
|
DRM_DEV_ERROR(dev, "failed to initialize encoder: %d\n", ret);
|
return ret;
|
}
|
|
drm_encoder_helper_add(encoder, &rockchip_rgb_encoder_helper_funcs);
|
|
if (rgb->panel) {
|
struct rockchip_drm_private *private = drm_dev->dev_private;
|
|
connector = &rgb->connector;
|
connector->interlace_allowed = true;
|
ret = drm_connector_init(drm_dev, connector,
|
&rockchip_rgb_connector_funcs,
|
DRM_MODE_CONNECTOR_DPI);
|
if (ret < 0) {
|
DRM_DEV_ERROR(dev,
|
"failed to initialize connector: %d\n",
|
ret);
|
goto err_free_encoder;
|
}
|
|
drm_connector_helper_add(connector,
|
&rockchip_rgb_connector_helper_funcs);
|
|
ret = drm_connector_attach_encoder(connector, encoder);
|
if (ret < 0) {
|
DRM_DEV_ERROR(dev,
|
"failed to attach encoder: %d\n", ret);
|
goto err_free_connector;
|
}
|
|
ret = drm_panel_attach(rgb->panel, connector);
|
if (ret < 0) {
|
DRM_DEV_ERROR(dev, "failed to attach panel: %d\n", ret);
|
goto err_free_connector;
|
}
|
rgb->sub_dev.connector = &rgb->connector;
|
rgb->sub_dev.of_node = rgb->dev->of_node;
|
drm_object_attach_property(&connector->base, private->connector_id_prop, 0);
|
rockchip_drm_register_sub_dev(&rgb->sub_dev);
|
} else {
|
rgb->bridge->encoder = encoder;
|
ret = drm_bridge_attach(encoder, rgb->bridge, NULL);
|
if (ret) {
|
DRM_DEV_ERROR(dev,
|
"failed to attach bridge: %d\n", ret);
|
goto err_free_encoder;
|
}
|
encoder->bridge = rgb->bridge;
|
}
|
|
return 0;
|
|
err_free_connector:
|
drm_connector_cleanup(connector);
|
err_free_encoder:
|
drm_encoder_cleanup(encoder);
|
return ret;
|
}
|
|
static void rockchip_rgb_unbind(struct device *dev, struct device *master,
|
void *data)
|
{
|
struct rockchip_rgb *rgb = dev_get_drvdata(dev);
|
|
if (rgb->sub_dev.connector)
|
rockchip_drm_unregister_sub_dev(&rgb->sub_dev);
|
if (rgb->panel) {
|
drm_panel_detach(rgb->panel);
|
drm_connector_cleanup(&rgb->connector);
|
}
|
|
drm_encoder_cleanup(&rgb->encoder);
|
}
|
|
static const struct component_ops rockchip_rgb_component_ops = {
|
.bind = rockchip_rgb_bind,
|
.unbind = rockchip_rgb_unbind,
|
};
|
|
static int rockchip_rgb_probe(struct platform_device *pdev)
|
{
|
struct device *dev = &pdev->dev;
|
struct rockchip_rgb *rgb;
|
int ret, id;
|
|
rgb = devm_kzalloc(&pdev->dev, sizeof(*rgb), GFP_KERNEL);
|
if (!rgb)
|
return -ENOMEM;
|
|
id = of_alias_get_id(dev->of_node, "rgb");
|
if (id < 0)
|
id = 0;
|
|
rgb->id = id;
|
rgb->dev = dev;
|
rgb->funcs = of_device_get_match_data(dev);
|
platform_set_drvdata(pdev, rgb);
|
|
rgb->data_sync_bypass =
|
of_property_read_bool(dev->of_node, "rockchip,data-sync-bypass");
|
|
if (dev->parent && dev->parent->of_node) {
|
rgb->grf = syscon_node_to_regmap(dev->parent->of_node);
|
if (IS_ERR(rgb->grf)) {
|
ret = PTR_ERR(rgb->grf);
|
dev_err(dev, "Unable to get grf: %d\n", ret);
|
return ret;
|
}
|
}
|
|
rgb->phy = devm_phy_optional_get(dev, "phy");
|
if (IS_ERR(rgb->phy)) {
|
ret = PTR_ERR(rgb->phy);
|
dev_err(dev, "failed to get phy: %d\n", ret);
|
return ret;
|
}
|
|
return component_add(dev, &rockchip_rgb_component_ops);
|
}
|
|
static int rockchip_rgb_remove(struct platform_device *pdev)
|
{
|
component_del(&pdev->dev, &rockchip_rgb_component_ops);
|
|
return 0;
|
}
|
|
static void px30_rgb_enable(struct rockchip_rgb *rgb)
|
{
|
int pipe = drm_of_encoder_active_endpoint_id(rgb->dev->of_node,
|
&rgb->encoder);
|
|
regmap_write(rgb->grf, PX30_GRF_PD_VO_CON1, PX30_RGB_VOP_SEL(pipe) |
|
PX30_RGB_DATA_SYNC_BYPASS(rgb->data_sync_bypass));
|
}
|
|
static const struct rockchip_rgb_funcs px30_rgb_funcs = {
|
.enable = px30_rgb_enable,
|
};
|
|
static void rk1808_rgb_enable(struct rockchip_rgb *rgb)
|
{
|
regmap_write(rgb->grf, RK1808_GRF_PD_VO_CON1,
|
RK1808_RGB_DATA_SYNC_BYPASS(rgb->data_sync_bypass));
|
}
|
|
static const struct rockchip_rgb_funcs rk1808_rgb_funcs = {
|
.enable = rk1808_rgb_enable,
|
};
|
|
static void rk3288_rgb_enable(struct rockchip_rgb *rgb)
|
{
|
int pipe = drm_of_encoder_active_endpoint_id(rgb->dev->of_node,
|
&rgb->encoder);
|
|
regmap_write(rgb->grf, RK3288_GRF_SOC_CON6, RK3288_LVDS_LCDC_SEL(pipe));
|
regmap_write(rgb->grf, RK3288_GRF_SOC_CON7,
|
RK3288_LVDS_PWRDWN(0) | RK3288_LVDS_CON_ENABLE_2(1) |
|
RK3288_LVDS_CON_ENABLE_1(1) | RK3288_LVDS_CON_CLKINV(0) |
|
RK3288_LVDS_CON_TTL_EN(1));
|
}
|
|
static void rk3288_rgb_disable(struct rockchip_rgb *rgb)
|
{
|
regmap_write(rgb->grf, RK3288_GRF_SOC_CON7,
|
RK3288_LVDS_PWRDWN(1) | RK3288_LVDS_CON_ENABLE_2(0) |
|
RK3288_LVDS_CON_ENABLE_1(0) | RK3288_LVDS_CON_TTL_EN(0));
|
}
|
|
static const struct rockchip_rgb_funcs rk3288_rgb_funcs = {
|
.enable = rk3288_rgb_enable,
|
.disable = rk3288_rgb_disable,
|
};
|
|
static void rk3568_rgb_enable(struct rockchip_rgb *rgb)
|
{
|
regmap_write(rgb->grf, RK3568_GRF_VO_CON1,
|
RK3568_RGB_DATA_BYPASS(rgb->data_sync_bypass));
|
}
|
|
static const struct rockchip_rgb_funcs rk3568_rgb_funcs = {
|
.enable = rk3568_rgb_enable,
|
};
|
|
static void rv1126_rgb_enable(struct rockchip_rgb *rgb)
|
{
|
regmap_write(rgb->grf, RV1126_GRF_IOFUNC_CON3,
|
RV1126_LCDC_IO_BYPASS(rgb->data_sync_bypass));
|
}
|
|
static const struct rockchip_rgb_funcs rv1126_rgb_funcs = {
|
.enable = rv1126_rgb_enable,
|
};
|
|
static const struct of_device_id rockchip_rgb_dt_ids[] = {
|
{ .compatible = "rockchip,px30-rgb", .data = &px30_rgb_funcs },
|
{ .compatible = "rockchip,rk1808-rgb", .data = &rk1808_rgb_funcs },
|
{ .compatible = "rockchip,rk3066-rgb", },
|
{ .compatible = "rockchip,rk3128-rgb", },
|
{ .compatible = "rockchip,rk3288-rgb", .data = &rk3288_rgb_funcs },
|
{ .compatible = "rockchip,rk3308-rgb", },
|
{ .compatible = "rockchip,rk3368-rgb", },
|
{ .compatible = "rockchip,rk3568-rgb", .data = &rk3568_rgb_funcs },
|
{ .compatible = "rockchip,rv1108-rgb", },
|
{ .compatible = "rockchip,rv1126-rgb", .data = &rv1126_rgb_funcs},
|
{}
|
};
|
MODULE_DEVICE_TABLE(of, rockchip_rgb_dt_ids);
|
|
struct platform_driver rockchip_rgb_driver = {
|
.probe = rockchip_rgb_probe,
|
.remove = rockchip_rgb_remove,
|
.driver = {
|
.name = "rockchip-rgb",
|
.of_match_table = of_match_ptr(rockchip_rgb_dt_ids),
|
},
|
};
|
