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C++ drm_connector_helper_add函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中drm_connector_helper_add函数的典型用法代码示例。如果您正苦于以下问题：C++ drm_connector_helper_add函数的具体用法？C++ drm_connector_helper_add怎么用？C++ drm_connector_helper_add使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了drm_connector_helper_add函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: kzalloc

static struct drm_connector *cirrus_vga_init(struct drm_device *dev)
{
	struct drm_connector *connector;
	struct cirrus_connector *cirrus_connector;

	cirrus_connector = kzalloc(sizeof(struct cirrus_connector), GFP_KERNEL);
	if (!cirrus_connector)
		return NULL;

	connector = &cirrus_connector->base;

	drm_connector_init(dev, connector,
			   &cirrus_vga_connector_funcs, DRM_MODE_CONNECTOR_VGA);

	drm_connector_helper_add(connector, &cirrus_vga_connector_helper_funcs);

	return connector;
}
开发者ID:24hours，项目名称:linux，代码行数:18，代码来源:cirrus_mode.c


示例2: hibmc_connector_init

int hibmc_connector_init(struct hibmc_drm_device *hidev)
{
	struct drm_device *dev = hidev->dev;
	struct drm_connector *connector = &hidev->connector;
	int ret;

	ret = drm_connector_init(dev, connector,
				 &hibmc_connector_connector_funcs,
				 DRM_MODE_CONNECTOR_VIRTUAL);
	if (ret) {
		DRM_ERROR("failed to init connector\n");
		return ret;
	}
	drm_connector_helper_add(connector,
				 &hibmc_connector_connector_helper_funcs);

	return 0;
}
开发者ID:guanhe0，项目名称:kernel，代码行数:18，代码来源:hibmc_drm_vdac.c


示例3: kzalloc

/* initialize connector */
struct drm_connector *msm_edp_connector_init(struct msm_edp *edp)
{
	struct drm_connector *connector = NULL;
	struct edp_connector *edp_connector;
	int ret;

	edp_connector = kzalloc(sizeof(*edp_connector), GFP_KERNEL);
	if (!edp_connector) {
		ret = -ENOMEM;
		goto fail;
	}

	edp_connector->edp = edp;

	connector = &edp_connector->base;

	ret = drm_connector_init(edp->dev, connector, &edp_connector_funcs,
			DRM_MODE_CONNECTOR_eDP);
	if (ret)
		goto fail;

	drm_connector_helper_add(connector, &edp_connector_helper_funcs);

	/* We don't support HPD, so only poll status until connected. */
	connector->polled = DRM_CONNECTOR_POLL_CONNECT;

	/* Display driver doesn't support interlace now. */
	connector->interlace_allowed = false;
	connector->doublescan_allowed = false;

	ret = drm_connector_register(connector);
	if (ret)
		goto fail;

	drm_mode_connector_attach_encoder(connector, edp->encoder);

	return connector;

fail:
	if (connector)
		edp_connector_destroy(connector);

	return ERR_PTR(ret);
}
开发者ID:020gzh，项目名称:linux，代码行数:45，代码来源:edp_connector.c


示例4: DBG

/* initialize connector */
struct drm_connector *omap_connector_init(struct drm_device *dev,
		int connector_type, struct omap_dss_device *dssdev,
		struct drm_encoder *encoder)
{
	struct drm_connector *connector = NULL;
	struct omap_connector *omap_connector;

	DBG("%s", dssdev->name);

	omap_dss_get_device(dssdev);

	omap_connector = kzalloc(sizeof(struct omap_connector), GFP_KERNEL);
	if (!omap_connector)
		goto fail;

	omap_connector->dssdev = dssdev;

	connector = &omap_connector->base;

	drm_connector_init(dev, connector, &omap_connector_funcs,
				connector_type);
	drm_connector_helper_add(connector, &omap_connector_helper_funcs);

#if 0 /* enable when dss2 supports hotplug */
	if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_HPD)
		connector->polled = 0;
	else
#endif
		connector->polled = DRM_CONNECTOR_POLL_CONNECT |
				DRM_CONNECTOR_POLL_DISCONNECT;

	connector->interlace_allowed = 1;
	connector->doublescan_allowed = 0;

	drm_connector_register(connector);

	return connector;

fail:
	if (connector)
		omap_connector_destroy(connector);

	return NULL;
}
开发者ID:forgivemyheart，项目名称:linux，代码行数:45，代码来源:omap_connector.c


示例5: kzalloc

/* initialize connector */
struct drm_connector *hdmi_connector_init(struct hdmi *hdmi)
{
	struct drm_connector *connector = NULL;
	struct hdmi_connector *hdmi_connector;
	int ret;

	hdmi_connector = kzalloc(sizeof(*hdmi_connector), GFP_KERNEL);
	if (!hdmi_connector) {
		ret = -ENOMEM;
		goto fail;
	}

	hdmi_connector->hdmi = hdmi_reference(hdmi);
	INIT_WORK(&hdmi_connector->hpd_work, hotplug_work);

	connector = &hdmi_connector->base;

	drm_connector_init(hdmi->dev, connector, &hdmi_connector_funcs,
			DRM_MODE_CONNECTOR_HDMIA);
	drm_connector_helper_add(connector, &hdmi_connector_helper_funcs);

	connector->polled = DRM_CONNECTOR_POLL_HPD;

	connector->interlace_allowed = 1;
	connector->doublescan_allowed = 0;

	drm_sysfs_connector_add(connector);

	ret = hpd_enable(hdmi_connector);
	if (ret) {
		dev_err(hdmi->dev->dev, "failed to enable HPD: %d\n", ret);
		goto fail;
	}

	drm_mode_connector_attach_encoder(connector, hdmi->encoder);

	return connector;

fail:
	if (connector)
		hdmi_connector_destroy(connector);

	return ERR_PTR(ret);
}
开发者ID:24hours，项目名称:linux，代码行数:45，代码来源:hdmi_connector.c


示例6: shmob_drm_connector_create

int shmob_drm_connector_create(struct shmob_drm_device *sdev,
			       struct drm_encoder *encoder)
{
	struct drm_connector *connector = &sdev->connector.connector;
	int ret;

	sdev->connector.encoder = encoder;

	connector->display_info.width_mm = sdev->pdata->panel.width_mm;
	connector->display_info.height_mm = sdev->pdata->panel.height_mm;

	ret = drm_connector_init(sdev->ddev, connector, &connector_funcs,
				 DRM_MODE_CONNECTOR_LVDS);
	if (ret < 0)
		return ret;

	drm_connector_helper_add(connector, &connector_helper_funcs);
	ret = drm_connector_register(connector);
	if (ret < 0)
		goto err_cleanup;

	ret = shmob_drm_backlight_init(&sdev->connector);
	if (ret < 0)
		goto err_sysfs;

	ret = drm_mode_connector_attach_encoder(connector, encoder);
	if (ret < 0)
		goto err_backlight;

	drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
	drm_object_property_set_value(&connector->base,
		sdev->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);

	return 0;

err_backlight:
	shmob_drm_backlight_exit(&sdev->connector);
err_sysfs:
	drm_connector_unregister(connector);
err_cleanup:
	drm_connector_cleanup(connector);
	return ret;
}
开发者ID:AK101111，项目名称:linux，代码行数:43，代码来源:shmob_drm_crtc.c


示例7: fsl_dcu_attach_panel

static int fsl_dcu_attach_panel(struct fsl_dcu_drm_device *fsl_dev,
				 struct drm_panel *panel)
{
	struct drm_encoder *encoder = &fsl_dev->encoder;
	struct drm_connector *connector = &fsl_dev->connector.base;
	struct drm_mode_config *mode_config = &fsl_dev->drm->mode_config;
	int ret;

	fsl_dev->connector.encoder = encoder;

	ret = drm_connector_init(fsl_dev->drm, connector,
				 &fsl_dcu_drm_connector_funcs,
				 DRM_MODE_CONNECTOR_LVDS);
	if (ret < 0)
		return ret;

	drm_connector_helper_add(connector, &connector_helper_funcs);
	ret = drm_connector_register(connector);
	if (ret < 0)
		goto err_cleanup;

	ret = drm_mode_connector_attach_encoder(connector, encoder);
	if (ret < 0)
		goto err_sysfs;

	drm_object_property_set_value(&connector->base,
				      mode_config->dpms_property,
				      DRM_MODE_DPMS_OFF);

	ret = drm_panel_attach(panel, connector);
	if (ret) {
		dev_err(fsl_dev->dev, "failed to attach panel\n");
		goto err_sysfs;
	}

	return 0;

err_sysfs:
	drm_connector_unregister(connector);
err_cleanup:
	drm_connector_cleanup(connector);
	return ret;
}
开发者ID:AK101111，项目名称:linux，代码行数:43，代码来源:fsl_dcu_drm_rgb.c


示例8: kzalloc

/* initialize connector */
struct drm_connector *mdp4_lvds_connector_init(struct drm_device *dev,
		struct drm_panel *panel, struct drm_encoder *encoder)
{
	struct drm_connector *connector = NULL;
	struct mdp4_lvds_connector *mdp4_lvds_connector;
	int ret;

	mdp4_lvds_connector = kzalloc(sizeof(*mdp4_lvds_connector), GFP_KERNEL);
	if (!mdp4_lvds_connector) {
		ret = -ENOMEM;
		goto fail;
	}

	mdp4_lvds_connector->encoder = encoder;
	mdp4_lvds_connector->panel = panel;

	connector = &mdp4_lvds_connector->base;

	drm_connector_init(dev, connector, &mdp4_lvds_connector_funcs,
			DRM_MODE_CONNECTOR_LVDS);
	drm_connector_helper_add(connector, &mdp4_lvds_connector_helper_funcs);

	connector->polled = 0;

	connector->interlace_allowed = 0;
	connector->doublescan_allowed = 0;

	drm_connector_register(connector);

	drm_mode_connector_attach_encoder(connector, encoder);

	if (panel)
		drm_panel_attach(panel, connector);

	return connector;

fail:
	if (connector)
		mdp4_lvds_connector_destroy(connector);

	return ERR_PTR(ret);
}
开发者ID:383530895，项目名称:linux，代码行数:43，代码来源:mdp4_lvds_connector.c


示例9: vgdev_output_init

static int vgdev_output_init(struct virtio_gpu_device *vgdev, int index)
{
	struct drm_device *dev = vgdev->ddev;
	struct virtio_gpu_output *output = vgdev->outputs + index;
	struct drm_connector *connector = &output->conn;
	struct drm_encoder *encoder = &output->enc;
	struct drm_crtc *crtc = &output->crtc;
	struct drm_plane *primary, *cursor;

	output->index = index;
	if (index == 0) {
		output->info.enabled = cpu_to_le32(true);
		output->info.r.width = cpu_to_le32(XRES_DEF);
		output->info.r.height = cpu_to_le32(YRES_DEF);
	}

	primary = virtio_gpu_plane_init(vgdev, DRM_PLANE_TYPE_PRIMARY, index);
	if (IS_ERR(primary))
		return PTR_ERR(primary);
	cursor = virtio_gpu_plane_init(vgdev, DRM_PLANE_TYPE_CURSOR, index);
	if (IS_ERR(cursor))
		return PTR_ERR(cursor);
	drm_crtc_init_with_planes(dev, crtc, primary, cursor,
				  &virtio_gpu_crtc_funcs, NULL);
	drm_crtc_helper_add(crtc, &virtio_gpu_crtc_helper_funcs);

	drm_connector_init(dev, connector, &virtio_gpu_connector_funcs,
			   DRM_MODE_CONNECTOR_VIRTUAL);
	drm_connector_helper_add(connector, &virtio_gpu_conn_helper_funcs);
	if (vgdev->has_edid)
		drm_connector_attach_edid_property(connector);

	drm_encoder_init(dev, encoder, &virtio_gpu_enc_funcs,
			 DRM_MODE_ENCODER_VIRTUAL, NULL);
	drm_encoder_helper_add(encoder, &virtio_gpu_enc_helper_funcs);
	encoder->possible_crtcs = 1 << index;

	drm_connector_attach_encoder(connector, encoder);
	drm_connector_register(connector);
	return 0;
}
开发者ID:avagin，项目名称:linux，代码行数:41，代码来源:virtgpu_display.c


示例10: rcar_du_hdmi_connector_init

int rcar_du_hdmi_connector_init(struct rcar_du_device *rcdu,
				struct rcar_du_encoder *renc)
{
	struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(renc);
	struct rcar_du_connector *rcon;
	struct drm_connector *connector;
	int ret;

	rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL);
	if (rcon == NULL)
		return -ENOMEM;

	connector = &rcon->connector;
	connector->display_info.width_mm = 0;
	connector->display_info.height_mm = 0;
	connector->interlace_allowed = true;
	connector->polled = DRM_CONNECTOR_POLL_HPD;

	ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
				 DRM_MODE_CONNECTOR_HDMIA);
	if (ret < 0)
		return ret;

	drm_connector_helper_add(connector, &connector_helper_funcs);
	ret = drm_connector_register(connector);
	if (ret < 0)
		return ret;

	connector->dpms = DRM_MODE_DPMS_OFF;
	drm_object_property_set_value(&connector->base,
		rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);

	ret = drm_mode_connector_attach_encoder(connector, encoder);
	if (ret < 0)
		return ret;

	rcon->encoder = renc;

	return 0;
}
开发者ID:19Dan01，项目名称:linux，代码行数:40，代码来源:rcar_du_hdmicon.c


示例11: mxsfb_create_output

int mxsfb_create_output(struct drm_device *drm)
{
	struct mxsfb_drm_private *mxsfb = drm->dev_private;
	struct drm_panel *panel;
	int ret;

	ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel, NULL);
	if (ret)
		return ret;

	mxsfb->connector.dpms = DRM_MODE_DPMS_OFF;
	mxsfb->connector.polled = 0;
	drm_connector_helper_add(&mxsfb->connector,
			&mxsfb_panel_connector_helper_funcs);
	ret = drm_connector_init(drm, &mxsfb->connector,
				 &mxsfb_panel_connector_funcs,
				 DRM_MODE_CONNECTOR_Unknown);
	if (!ret)
		mxsfb->panel = panel;

	return ret;
}
开发者ID:Anjali05，项目名称:linux，代码行数:22，代码来源:mxsfb_out.c


示例12: meson_encoder_create

struct drm_connector *meson_cvbs_connector_create(struct drm_device *dev,
						  bool enabled,
						  struct drm_display_mode *mode)
{
	struct meson_connector *meson_connector;
	struct drm_connector *connector;
        struct drm_encoder *encoder;
	int ret;

	encoder = meson_encoder_create(dev);
	if (!encoder)
		return NULL;

	meson_connector = kzalloc(sizeof(*meson_connector), GFP_KERNEL);
	if (!meson_connector)
		return NULL;

	connector = &meson_connector->base;
	meson_connector->encoder = encoder;
	meson_connector->enabled = enabled;
	meson_connector->mode = mode;

	drm_connector_init(dev, connector, &meson_connector_funcs, DRM_MODE_CONNECTOR_Composite);
	drm_connector_helper_add(connector, &meson_connector_helper_funcs);

	connector->interlace_allowed = 1;
	connector->doublescan_allowed = 0;

	ret = drm_mode_connector_attach_encoder(connector, encoder);
	if (ret)
		goto fail;

	drm_connector_register(connector);
	return connector;

fail:
	meson_connector_destroy(connector);
	return NULL;
}
开发者ID:akuster，项目名称:linux-meson，代码行数:39，代码来源:meson_cvbs.c


示例13: imx_ldb_register

static int imx_ldb_register(struct drm_device *drm,
	struct imx_ldb_channel *imx_ldb_ch)
{
	struct imx_ldb *ldb = imx_ldb_ch->ldb;
	int ret;

	ret = imx_drm_encoder_parse_of(drm, &imx_ldb_ch->encoder,
				       imx_ldb_ch->child);
	if (ret)
		return ret;

	ret = imx_ldb_get_clk(ldb, imx_ldb_ch->chno);
	if (ret)
		return ret;

	if (ldb->ldb_ctrl & LDB_SPLIT_MODE_EN) {
		ret = imx_ldb_get_clk(ldb, 1);
		if (ret)
			return ret;
	}

	drm_encoder_helper_add(&imx_ldb_ch->encoder,
			&imx_ldb_encoder_helper_funcs);
	drm_encoder_init(drm, &imx_ldb_ch->encoder, &imx_ldb_encoder_funcs,
			 DRM_MODE_ENCODER_LVDS);

	drm_connector_helper_add(&imx_ldb_ch->connector,
			&imx_ldb_connector_helper_funcs);
	drm_connector_init(drm, &imx_ldb_ch->connector,
			   &imx_ldb_connector_funcs, DRM_MODE_CONNECTOR_LVDS);

	if (imx_ldb_ch->panel)
		drm_panel_attach(imx_ldb_ch->panel, &imx_ldb_ch->connector);

	drm_mode_connector_attach_encoder(&imx_ldb_ch->connector,
			&imx_ldb_ch->encoder);

	return 0;
}
开发者ID:wjs123lyj，项目名称:linux-4.0_imx6，代码行数:39，代码来源:imx-ldb.c


示例14: dw_mipi_dsi_register

static int dw_mipi_dsi_register(struct drm_device *drm,
				      struct dw_mipi_dsi *dsi)
{
	struct drm_encoder *encoder = &dsi->encoder;
	struct drm_connector *connector = &dsi->connector;
	struct device *dev = dsi->dev;
	int ret;

	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm,
							     dev->of_node);
	/*
	 * If we failed to find the CRTC(s) which this encoder is
	 * supposed to be connected to, it's because the CRTC has
	 * not been registered yet.  Defer probing, and hope that
	 * the required CRTC is added later.
	 */
	if (encoder->possible_crtcs == 0)
		return -EPROBE_DEFER;

	drm_encoder_helper_add(&dsi->encoder,
			       &dw_mipi_dsi_encoder_helper_funcs);
	ret = drm_encoder_init(drm, &dsi->encoder, &dw_mipi_dsi_encoder_funcs,
			 DRM_MODE_ENCODER_DSI, NULL);
	if (ret) {
		dev_err(dev, "Failed to initialize encoder with drm\n");
		return ret;
	}

	drm_connector_helper_add(connector,
			&dw_mipi_dsi_connector_helper_funcs);

	drm_connector_init(drm, &dsi->connector,
			   &dw_mipi_dsi_atomic_connector_funcs,
			   DRM_MODE_CONNECTOR_DSI);

	drm_mode_connector_attach_encoder(connector, encoder);

	return 0;
}
开发者ID:513855417，项目名称:linux，代码行数:39，代码来源:dw-mipi-dsi.c


示例15: rcar_du_vga_connector_init

int rcar_du_vga_connector_init(struct rcar_du_device *rcdu,
			       struct rcar_du_encoder *renc)
{
	struct rcar_du_connector *rcon;
	struct drm_connector *connector;
	int ret;

	rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL);
	if (rcon == NULL)
		return -ENOMEM;

	connector = &rcon->connector;
	connector->display_info.width_mm = 0;
	connector->display_info.height_mm = 0;

	ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
				 DRM_MODE_CONNECTOR_VGA);
	if (ret < 0)
		return ret;

	drm_connector_helper_add(connector, &connector_helper_funcs);
	ret = drm_connector_register(connector);
	if (ret < 0)
		return ret;

	drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
	drm_object_property_set_value(&connector->base,
		rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);

	ret = drm_mode_connector_attach_encoder(connector, &renc->encoder);
	if (ret < 0)
		return ret;

	connector->encoder = &renc->encoder;
	rcon->encoder = renc;

	return 0;
}
开发者ID:AkyZero，项目名称:wrapfs-latest，代码行数:38，代码来源:rcar_du_vgacon.c


示例16: vgdev_output_init

static int vgdev_output_init(struct virtio_gpu_device *vgdev, int index)
{
	struct drm_device *dev = vgdev->ddev;
	struct virtio_gpu_output *output = vgdev->outputs + index;
	struct drm_connector *connector = &output->conn;
	struct drm_encoder *encoder = &output->enc;
	struct drm_crtc *crtc = &output->crtc;
	struct drm_plane *plane;

	output->index = index;
	if (index == 0) {
		output->info.enabled = cpu_to_le32(true);
		output->info.r.width = cpu_to_le32(XRES_DEF);
		output->info.r.height = cpu_to_le32(YRES_DEF);
	}

	plane = virtio_gpu_plane_init(vgdev, index);
	if (IS_ERR(plane))
		return PTR_ERR(plane);
	drm_crtc_init_with_planes(dev, crtc, plane, NULL,
				  &virtio_gpu_crtc_funcs, NULL);
	drm_mode_crtc_set_gamma_size(crtc, 256);
	drm_crtc_helper_add(crtc, &virtio_gpu_crtc_helper_funcs);
	plane->crtc = crtc;

	drm_connector_init(dev, connector, &virtio_gpu_connector_funcs,
			   DRM_MODE_CONNECTOR_VIRTUAL);
	drm_connector_helper_add(connector, &virtio_gpu_conn_helper_funcs);

	drm_encoder_init(dev, encoder, &virtio_gpu_enc_funcs,
			 DRM_MODE_ENCODER_VIRTUAL, NULL);
	drm_encoder_helper_add(encoder, &virtio_gpu_enc_helper_funcs);
	encoder->possible_crtcs = 1 << index;

	drm_mode_connector_attach_encoder(connector, encoder);
	drm_connector_register(connector);
	return 0;
}
开发者ID:BigeyeDestroyer，项目名称:linux，代码行数:38，代码来源:virtgpu_display.c


示例17: kzalloc

static struct drm_connector *panel_connector_create(struct drm_device *dev,
		struct panel_module *mod, struct drm_encoder *encoder)
{
	struct panel_connector *panel_connector;
	struct drm_connector *connector;
	int ret;

	panel_connector = kzalloc(sizeof(*panel_connector), GFP_KERNEL);
	if (!panel_connector) {
		dev_err(dev->dev, "allocation failed\n");
		return NULL;
	}

	panel_connector->encoder = encoder;
	panel_connector->mod = mod;

	connector = &panel_connector->base;

	drm_connector_init(dev, connector, &panel_connector_funcs,
			DRM_MODE_CONNECTOR_LVDS);
	drm_connector_helper_add(connector, &panel_connector_helper_funcs);

	connector->interlace_allowed = 0;
	connector->doublescan_allowed = 0;

	ret = drm_mode_connector_attach_encoder(connector, encoder);
	if (ret)
		goto fail;

	drm_sysfs_connector_add(connector);

	return connector;

fail:
	panel_connector_destroy(connector);
	return NULL;
}
开发者ID:0x000000FF，项目名称:Linux4Edison，代码行数:37，代码来源:tilcdc_panel.c


示例18: tilcdc_add_external_connector

static int tilcdc_add_external_connector(struct drm_device *dev,
					 struct drm_connector *connector)
{
	struct tilcdc_drm_private *priv = dev->dev_private;
	struct drm_connector_helper_funcs *connector_funcs;

	/* There should never be more than one connector */
	if (WARN_ON(priv->external_connector))
		return -EINVAL;

	priv->external_connector = connector;
	connector_funcs = devm_kzalloc(dev->dev, sizeof(*connector_funcs),
				       GFP_KERNEL);
	if (!connector_funcs)
		return -ENOMEM;

	/* connector->helper_private contains always struct
	 * connector_helper_funcs pointer. For tilcdc crtc to have a
	 * say if a specific mode is Ok, we need to install our own
	 * helper functions. In our helper functions we copy
	 * everything else but use our own mode_valid() (above).
	 */
	if (connector->helper_private) {
		priv->connector_funcs =	connector->helper_private;
		*connector_funcs = *priv->connector_funcs;
	} else {
		priv->connector_funcs = ERR_PTR(-ENOENT);
	}
	connector_funcs->mode_valid = tilcdc_external_mode_valid;
	drm_connector_helper_add(connector, connector_funcs);

	dev_dbg(dev->dev, "External connector '%s' connected\n",
		connector->name);

	return 0;
}
开发者ID:forgivemyheart，项目名称:linux，代码行数:36，代码来源:tilcdc_external.c


示例19: ptn3460_init

int ptn3460_init(struct drm_device *dev, struct drm_encoder *encoder,
		struct i2c_client *client, struct device_node *node)
{
	int ret;
	struct drm_bridge *bridge;
	struct ptn3460_bridge *ptn_bridge;

	bridge = devm_kzalloc(dev->dev, sizeof(*bridge), GFP_KERNEL);
	if (!bridge) {
		DRM_ERROR("Failed to allocate drm bridge\n");
		return -ENOMEM;
	}

	ptn_bridge = devm_kzalloc(dev->dev, sizeof(*ptn_bridge), GFP_KERNEL);
	if (!ptn_bridge) {
		DRM_ERROR("Failed to allocate ptn bridge\n");
		return -ENOMEM;
	}

	ptn_bridge->client = client;
	ptn_bridge->encoder = encoder;
	ptn_bridge->bridge = bridge;
	ptn_bridge->gpio_pd_n = of_get_named_gpio(node, "powerdown-gpio", 0);
	if (gpio_is_valid(ptn_bridge->gpio_pd_n)) {
		ret = gpio_request_one(ptn_bridge->gpio_pd_n,
				GPIOF_OUT_INIT_HIGH, "PTN3460_PD_N");
		if (ret) {
			DRM_ERROR("Request powerdown-gpio failed (%d)\n", ret);
			return ret;
		}
	}

	ptn_bridge->gpio_rst_n = of_get_named_gpio(node, "reset-gpio", 0);
	if (gpio_is_valid(ptn_bridge->gpio_rst_n)) {
		/*
		 * Request the reset pin low to avoid the bridge being
		 * initialized prematurely
		 */
		ret = gpio_request_one(ptn_bridge->gpio_rst_n,
				GPIOF_OUT_INIT_LOW, "PTN3460_RST_N");
		if (ret) {
			DRM_ERROR("Request reset-gpio failed (%d)\n", ret);
			gpio_free(ptn_bridge->gpio_pd_n);
			return ret;
		}
	}

	ret = of_property_read_u32(node, "edid-emulation",
			&ptn_bridge->edid_emulation);
	if (ret) {
		DRM_ERROR("Can't read edid emulation value\n");
		goto err;
	}

	ret = drm_bridge_init(dev, bridge, &ptn3460_bridge_funcs);
	if (ret) {
		DRM_ERROR("Failed to initialize bridge with drm\n");
		goto err;
	}

	bridge->driver_private = ptn_bridge;
	encoder->bridge = bridge;

	ret = drm_connector_init(dev, &ptn_bridge->connector,
			&ptn3460_connector_funcs, DRM_MODE_CONNECTOR_LVDS);
	if (ret) {
		DRM_ERROR("Failed to initialize connector with drm\n");
		goto err;
	}
	drm_connector_helper_add(&ptn_bridge->connector,
			&ptn3460_connector_helper_funcs);
	drm_connector_register(&ptn_bridge->connector);
	drm_mode_connector_attach_encoder(&ptn_bridge->connector, encoder);

	return 0;

err:
	if (gpio_is_valid(ptn_bridge->gpio_pd_n))
		gpio_free(ptn_bridge->gpio_pd_n);
	if (gpio_is_valid(ptn_bridge->gpio_rst_n))
		gpio_free(ptn_bridge->gpio_rst_n);
	return ret;
}
开发者ID:383530895，项目名称:linux，代码行数:83，代码来源:ptn3460.c


示例20: xilinx_drm_connector_create

/* create connector */
struct drm_connector *
xilinx_drm_connector_create(struct drm_device *drm,
			    struct drm_encoder *base_encoder, int id)
{
	struct xilinx_drm_connector *connector;
	const char *string;
	int type = DRM_MODE_CONNECTOR_Unknown;
	int i, ret;

	connector = devm_kzalloc(drm->dev, sizeof(*connector), GFP_KERNEL);
	if (!connector)
		return ERR_PTR(-ENOMEM);

	connector->base.polled = DRM_CONNECTOR_POLL_HPD |
				 DRM_CONNECTOR_POLL_CONNECT |
				 DRM_CONNECTOR_POLL_DISCONNECT;

	ret = of_property_read_string_index(drm->dev->of_node,
					    "xlnx,connector-type", id, &string);
	if (ret < 0) {
		dev_err(drm->dev, "No connector type in DT\n");
		return ERR_PTR(ret);
	}

	for (i = 0; i < ARRAY_SIZE(connector_types); i++)
		if (strcmp(connector_types[i].name, string) == 0) {
			type = connector_types[i].type;
			break;
		}

	if (type == DRM_MODE_CONNECTOR_Unknown) {
		dev_err(drm->dev, "Unknown connector type in DT\n");
		return ERR_PTR(-EINVAL);
	}

	ret = drm_connector_init(drm, &connector->base,
				 &xilinx_drm_connector_funcs, type);
	if (ret) {
		DRM_ERROR("failed to initialize connector\n");
		return ERR_PTR(ret);
	}

	drm_connector_helper_add(&connector->base,
				 &xilinx_drm_connector_helper_funcs);

	/* add entry for connector */
	ret = drm_connector_register(&connector->base);
	if (ret) {
		DRM_ERROR("failed to register a connector\n");
		goto err_register;
	}

	/* connect connector and encoder */
	ret = drm_connector_attach_encoder(&connector->base, base_encoder);
	if (ret) {
		DRM_ERROR("failed to attach connector to encoder\n");
		goto err_attach;
	}
	connector->encoder = base_encoder;
	connector->base.dpms = DRM_MODE_DPMS_OFF;

	return &connector->base;

err_attach:
	drm_connector_unregister(&connector->base);
err_register:
	drm_connector_cleanup(&connector->base);
	return ERR_PTR(ret);
}
开发者ID:Xilinx，项目名称:linux-xlnx，代码行数:70，代码来源:xilinx_drm_connector.c



注：本文中的drm_connector_helper_add函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ drm_connector_init函数代码示例发布时间：2022-05-30
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