diff options
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_dsi.c | 53 |
1 files changed, 32 insertions, 21 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 8addcb20781c..2a0b78014094 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -255,6 +255,7 @@ struct exynos_dsi { struct mipi_dsi_host dsi_host; struct drm_connector connector; struct drm_panel *panel; + struct drm_bridge *out_bridge; struct device *dev; void __iomem *reg_base; @@ -1499,7 +1500,30 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host, struct mipi_dsi_device *device) { struct exynos_dsi *dsi = host_to_dsi(host); - struct drm_device *drm = dsi->connector.dev; + struct drm_encoder *encoder = &dsi->encoder; + struct drm_device *drm = encoder->dev; + struct drm_bridge *out_bridge; + + out_bridge = of_drm_find_bridge(device->dev.of_node); + if (out_bridge) { + drm_bridge_attach(encoder, out_bridge, NULL); + dsi->out_bridge = out_bridge; + encoder->bridge = NULL; + } else { + int ret = exynos_dsi_create_connector(encoder); + + if (ret) { + DRM_ERROR("failed to create connector ret = %d\n", ret); + drm_encoder_cleanup(encoder); + return ret; + } + + dsi->panel = of_drm_find_panel(device->dev.of_node); + if (dsi->panel) { + drm_panel_attach(dsi->panel, &dsi->connector); + dsi->connector.status = connector_status_connected; + } + } /* * This is a temporary solution and should be made by more generic way. @@ -1518,14 +1542,6 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host, dsi->lanes = device->lanes; dsi->format = device->format; dsi->mode_flags = device->mode_flags; - dsi->panel = of_drm_find_panel(device->dev.of_node); - if (IS_ERR(dsi->panel)) - dsi->panel = NULL; - - if (dsi->panel) { - drm_panel_attach(dsi->panel, &dsi->connector); - dsi->connector.status = connector_status_connected; - } exynos_drm_crtc_get_by_type(drm, EXYNOS_DISPLAY_TYPE_LCD)->i80_mode = !(dsi->mode_flags & MIPI_DSI_MODE_VIDEO); @@ -1541,19 +1557,21 @@ static int exynos_dsi_host_detach(struct mipi_dsi_host *host, struct mipi_dsi_device *device) { struct exynos_dsi *dsi = host_to_dsi(host); - struct drm_device *drm = dsi->connector.dev; - - mutex_lock(&drm->mode_config.mutex); + struct drm_device *drm = dsi->encoder.dev; if (dsi->panel) { + mutex_lock(&drm->mode_config.mutex); exynos_dsi_disable(&dsi->encoder); drm_panel_detach(dsi->panel); dsi->panel = NULL; dsi->connector.status = connector_status_disconnected; + mutex_unlock(&drm->mode_config.mutex); + } else { + if (dsi->out_bridge->funcs->detach) + dsi->out_bridge->funcs->detach(dsi->out_bridge); + dsi->out_bridge = NULL; } - mutex_unlock(&drm->mode_config.mutex); - if (drm->mode_config.poll_enabled) drm_kms_helper_hotplug_event(drm); @@ -1657,13 +1675,6 @@ static int exynos_dsi_bind(struct device *dev, struct device *master, if (ret < 0) return ret; - ret = exynos_dsi_create_connector(encoder); - if (ret) { - DRM_ERROR("failed to create connector ret = %d\n", ret); - drm_encoder_cleanup(encoder); - return ret; - } - if (dsi->in_bridge_node) { in_bridge = of_drm_find_bridge(dsi->in_bridge_node); if (in_bridge) |