diff options
Diffstat (limited to 'drivers/gpu/drm/msm/dsi/dsi_manager.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/dsi_manager.c | 124 |
1 files changed, 57 insertions, 67 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index af2a287cb3bd..ca400924d4ee 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -74,17 +74,35 @@ static int dsi_mgr_setup_components(int id) int ret; if (!IS_BONDED_DSI()) { + /* + * Set the usecase before calling msm_dsi_host_register(), which would + * already program the PLL source mux based on a default usecase. + */ + msm_dsi_phy_set_usecase(msm_dsi->phy, MSM_DSI_PHY_STANDALONE); + msm_dsi_host_set_phy_mode(msm_dsi->host, msm_dsi->phy); + ret = msm_dsi_host_register(msm_dsi->host); if (ret) return ret; - - msm_dsi_phy_set_usecase(msm_dsi->phy, MSM_DSI_PHY_STANDALONE); - msm_dsi_host_set_phy_mode(msm_dsi->host, msm_dsi->phy); } else if (other_dsi) { struct msm_dsi *master_link_dsi = IS_MASTER_DSI_LINK(id) ? msm_dsi : other_dsi; struct msm_dsi *slave_link_dsi = IS_MASTER_DSI_LINK(id) ? other_dsi : msm_dsi; + + /* + * PLL0 is to drive both DSI link clocks in bonded DSI mode. + * + * Set the usecase before calling msm_dsi_host_register(), which would + * already program the PLL source mux based on a default usecase. + */ + msm_dsi_phy_set_usecase(clk_master_dsi->phy, + MSM_DSI_PHY_MASTER); + msm_dsi_phy_set_usecase(clk_slave_dsi->phy, + MSM_DSI_PHY_SLAVE); + msm_dsi_host_set_phy_mode(msm_dsi->host, msm_dsi->phy); + msm_dsi_host_set_phy_mode(other_dsi->host, other_dsi->phy); + /* Register slave host first, so that slave DSI device * has a chance to probe, and do not block the master * DSI device's probe. @@ -98,14 +116,6 @@ static int dsi_mgr_setup_components(int id) ret = msm_dsi_host_register(master_link_dsi->host); if (ret) return ret; - - /* PLL0 is to drive both 2 DSI link clocks in bonded DSI mode. */ - msm_dsi_phy_set_usecase(clk_master_dsi->phy, - MSM_DSI_PHY_MASTER); - msm_dsi_phy_set_usecase(clk_slave_dsi->phy, - MSM_DSI_PHY_SLAVE); - msm_dsi_host_set_phy_mode(msm_dsi->host, msm_dsi->phy); - msm_dsi_host_set_phy_mode(other_dsi->host, other_dsi->phy); } return 0; @@ -423,7 +433,19 @@ static enum drm_mode_status dsi_mgr_bridge_mode_valid(struct drm_bridge *bridge, return msm_dsi_host_check_dsc(host, mode); } +static int dsi_mgr_bridge_attach(struct drm_bridge *bridge, + struct drm_encoder *encoder, + enum drm_bridge_attach_flags flags) +{ + int id = dsi_mgr_bridge_get_id(bridge); + struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id); + + return drm_bridge_attach(encoder, msm_dsi->next_bridge, + bridge, flags); +} + static const struct drm_bridge_funcs dsi_mgr_bridge_funcs = { + .attach = dsi_mgr_bridge_attach, .pre_enable = dsi_mgr_bridge_pre_enable, .post_disable = dsi_mgr_bridge_post_disable, .mode_set = dsi_mgr_bridge_mode_set, @@ -431,79 +453,42 @@ static const struct drm_bridge_funcs dsi_mgr_bridge_funcs = { }; /* initialize bridge */ -struct drm_bridge *msm_dsi_manager_bridge_init(struct msm_dsi *msm_dsi, - struct drm_encoder *encoder) +int msm_dsi_manager_connector_init(struct msm_dsi *msm_dsi, + struct drm_encoder *encoder) { + struct drm_device *dev = msm_dsi->dev; struct drm_bridge *bridge; struct dsi_bridge *dsi_bridge; + struct drm_connector *connector; int ret; - dsi_bridge = devm_kzalloc(msm_dsi->dev->dev, - sizeof(*dsi_bridge), GFP_KERNEL); - if (!dsi_bridge) - return ERR_PTR(-ENOMEM); + dsi_bridge = devm_drm_bridge_alloc(msm_dsi->dev->dev, struct dsi_bridge, base, + &dsi_mgr_bridge_funcs); + if (IS_ERR(dsi_bridge)) + return PTR_ERR(dsi_bridge); dsi_bridge->id = msm_dsi->id; bridge = &dsi_bridge->base; - bridge->funcs = &dsi_mgr_bridge_funcs; ret = devm_drm_bridge_add(msm_dsi->dev->dev, bridge); if (ret) - return ERR_PTR(ret); + return ret; - ret = drm_bridge_attach(encoder, bridge, NULL, 0); + ret = drm_bridge_attach(encoder, bridge, NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR); if (ret) - return ERR_PTR(ret); - - return bridge; -} - -int msm_dsi_manager_ext_bridge_init(u8 id, struct drm_bridge *int_bridge) -{ - struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id); - struct drm_device *dev = msm_dsi->dev; - struct drm_encoder *encoder; - struct drm_bridge *ext_bridge; - int ret; + return ret; - ext_bridge = devm_drm_of_get_bridge(&msm_dsi->pdev->dev, - msm_dsi->pdev->dev.of_node, 1, 0); - if (IS_ERR(ext_bridge)) - return PTR_ERR(ext_bridge); - - encoder = int_bridge->encoder; - - /* - * Try first to create the bridge without it creating its own - * connector.. currently some bridges support this, and others - * do not (and some support both modes) - */ - ret = drm_bridge_attach(encoder, ext_bridge, int_bridge, - DRM_BRIDGE_ATTACH_NO_CONNECTOR); - if (ret == -EINVAL) { - /* - * link the internal dsi bridge to the external bridge, - * connector is created by the next bridge. - */ - ret = drm_bridge_attach(encoder, ext_bridge, int_bridge, 0); - if (ret < 0) - return ret; - } else { - struct drm_connector *connector; - - /* We are in charge of the connector, create one now. */ - connector = drm_bridge_connector_init(dev, encoder); - if (IS_ERR(connector)) { - DRM_ERROR("Unable to create bridge connector\n"); - return PTR_ERR(connector); - } - - ret = drm_connector_attach_encoder(connector, encoder); - if (ret < 0) - return ret; + connector = drm_bridge_connector_init(dev, encoder); + if (IS_ERR(connector)) { + DRM_ERROR("Unable to create bridge connector\n"); + return PTR_ERR(connector); } + ret = drm_connector_attach_encoder(connector, encoder); + if (ret < 0) + return ret; + return 0; } @@ -628,3 +613,8 @@ bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi) { return IS_MASTER_DSI_LINK(msm_dsi->id); } + +const char *msm_dsi_get_te_source(struct msm_dsi *msm_dsi) +{ + return msm_dsi->te_source; +} |