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drm/imx/dcss: use drm_bridge_connector API
Make use of drm_bridge_connector API to have the connector initialized by the display controller. Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Link: https://patchwork.freedesktop.org/patch/msgid/20200731081836.3048-4-laurentiu.palcu@oss.nxp.com
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parent
9021c317b7
commit
e7033bdfd4
3 changed files with 42 additions and 9 deletions
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@ -8,9 +8,12 @@
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#include <linux/of_graph.h>
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#include <linux/pm_runtime.h>
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#include <linux/slab.h>
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#include <drm/drm_bridge_connector.h>
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#include <drm/drm_device.h>
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#include <drm/drm_modeset_helper.h>
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#include "dcss-dev.h"
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#include "dcss-kms.h"
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static void dcss_clocks_enable(struct dcss_dev *dcss)
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{
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@ -247,9 +250,13 @@ void dcss_dev_destroy(struct dcss_dev *dcss)
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int dcss_dev_suspend(struct device *dev)
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{
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struct dcss_dev *dcss = dcss_drv_dev_to_dcss(dev);
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struct drm_device *ddev = dcss_drv_dev_to_drm(dev);
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struct dcss_kms_dev *kms = container_of(ddev, struct dcss_kms_dev, base);
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int ret;
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drm_mode_config_helper_suspend(dcss_drv_dev_to_drm(dev));
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drm_bridge_connector_disable_hpd(kms->connector);
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drm_mode_config_helper_suspend(ddev);
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if (pm_runtime_suspended(dev))
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return 0;
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@ -266,9 +273,11 @@ int dcss_dev_suspend(struct device *dev)
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int dcss_dev_resume(struct device *dev)
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{
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struct dcss_dev *dcss = dcss_drv_dev_to_dcss(dev);
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struct drm_device *ddev = dcss_drv_dev_to_drm(dev);
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struct dcss_kms_dev *kms = container_of(ddev, struct dcss_kms_dev, base);
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if (pm_runtime_suspended(dev)) {
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drm_mode_config_helper_resume(dcss_drv_dev_to_drm(dev));
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drm_mode_config_helper_resume(ddev);
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return 0;
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}
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@ -278,7 +287,9 @@ int dcss_dev_resume(struct device *dev)
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dcss_ctxld_resume(dcss->ctxld);
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drm_mode_config_helper_resume(dcss_drv_dev_to_drm(dev));
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drm_mode_config_helper_resume(ddev);
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drm_bridge_connector_enable_hpd(kms->connector);
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return 0;
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}
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@ -5,6 +5,7 @@
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_bridge_connector.h>
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#include <drm/drm_drv.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_gem_cma_helper.h>
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@ -74,7 +75,7 @@ static const struct drm_encoder_funcs dcss_kms_simple_encoder_funcs = {
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.destroy = drm_encoder_cleanup,
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};
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static int dcss_kms_setup_encoder(struct dcss_kms_dev *kms)
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static int dcss_kms_bridge_connector_init(struct dcss_kms_dev *kms)
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{
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struct drm_device *ddev = &kms->base;
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struct drm_encoder *encoder = &kms->encoder;
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@ -103,7 +104,23 @@ static int dcss_kms_setup_encoder(struct dcss_kms_dev *kms)
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return ret;
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}
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return drm_bridge_attach(encoder, bridge, NULL, 0);
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ret = drm_bridge_attach(encoder, bridge, NULL,
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DRM_BRIDGE_ATTACH_NO_CONNECTOR);
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if (ret < 0) {
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dev_err(ddev->dev, "Unable to attach bridge %pOF\n",
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bridge->of_node);
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return ret;
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}
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kms->connector = drm_bridge_connector_init(ddev, encoder);
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if (IS_ERR(kms->connector)) {
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dev_err(ddev->dev, "Unable to create bridge connector.\n");
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return PTR_ERR(kms->connector);
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}
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drm_connector_attach_encoder(kms->connector, encoder);
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return 0;
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}
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struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss)
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@ -131,18 +148,20 @@ struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss)
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drm->irq_enabled = true;
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ret = dcss_kms_bridge_connector_init(kms);
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if (ret)
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goto cleanup_mode_config;
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ret = dcss_crtc_init(crtc, drm);
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if (ret)
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goto cleanup_mode_config;
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ret = dcss_kms_setup_encoder(kms);
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if (ret)
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goto cleanup_crtc;
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drm_mode_config_reset(drm);
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drm_kms_helper_poll_init(drm);
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drm_bridge_connector_enable_hpd(kms->connector);
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ret = drm_dev_register(drm, 0);
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if (ret)
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goto cleanup_crtc;
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@ -152,6 +171,7 @@ struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss)
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return kms;
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cleanup_crtc:
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drm_bridge_connector_disable_hpd(kms->connector);
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drm_kms_helper_poll_fini(drm);
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dcss_crtc_deinit(crtc, drm);
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@ -167,6 +187,7 @@ void dcss_kms_detach(struct dcss_kms_dev *kms)
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struct drm_device *drm = &kms->base;
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drm_dev_unregister(drm);
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drm_bridge_connector_disable_hpd(kms->connector);
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drm_kms_helper_poll_fini(drm);
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drm_atomic_helper_shutdown(drm);
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drm_crtc_vblank_off(&kms->crtc.base);
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@ -29,6 +29,7 @@ struct dcss_kms_dev {
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struct drm_device base;
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struct dcss_crtc crtc;
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struct drm_encoder encoder;
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struct drm_connector *connector;
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};
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struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss);
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