Add drm ovl_adaptor sub driver. Bring up ovl_adaptor sub driver if the component exists in the path.
Signed-off-by: Nancy.Lin nancy.lin@mediatek.com Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com --- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 18 ++++------ drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 31 +++++++++++++--- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 1 + drivers/gpu/drm/mediatek/mtk_drm_drv.c | 40 ++++++++++++--------- 4 files changed, 58 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index fbf18cf536bf..9b12595d2330 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -880,20 +880,16 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, for (i = 0; i < path_len; i++) { enum mtk_ddp_comp_id comp_id = path[i]; struct device_node *node; - struct mtk_ddp_comp *comp;
node = priv->comp_node[comp_id]; - comp = &priv->ddp_comp[comp_id];
- if (!node) { - dev_info(dev, - "Not creating crtc %d because component %d is disabled or missing\n", - crtc_i, comp_id); - return 0; - } - - if (!comp->dev) { - dev_err(dev, "Component %pOF not initialized\n", node); + /* Not all drm components have a DTS device node, such as ovl_adaptor, + * which is the drm bring up sub driver + */ + if (!node && comp_id != DDP_COMPONENT_OVL_ADAPTOR) { + dev_err(dev, + "Not creating crtc %d because component %d is disabled, missing or not initialized\n", + crtc_i, comp_id); return -ENODEV; } } diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index 26d197da41c0..acc6f09da653 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -385,6 +385,19 @@ static const struct mtk_ddp_comp_funcs ddp_ufoe = { .start = mtk_ufoe_start, };
+static const struct mtk_ddp_comp_funcs ddp_ovl_adaptor = { + .clk_enable = mtk_ovl_adaptor_clk_enable, + .clk_disable = mtk_ovl_adaptor_clk_disable, + .config = mtk_ovl_adaptor_config, + .start = mtk_ovl_adaptor_start, + .stop = mtk_ovl_adaptor_stop, + .layer_nr = mtk_ovl_adaptor_layer_nr, + .layer_config = mtk_ovl_adaptor_layer_config, + .enable_vblank = mtk_ovl_adaptor_enable_vblank, + .disable_vblank = mtk_ovl_adaptor_disable_vblank, + .dma_dev_get = mtk_ovl_adaptor_dma_dev_get, +}; + static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = { [MTK_DISP_AAL] = "aal", [MTK_DISP_BLS] = "bls", @@ -398,6 +411,7 @@ static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = { [MTK_DISP_OD] = "od", [MTK_DISP_OVL] = "ovl", [MTK_DISP_OVL_2L] = "ovl-2l", + [MTK_DISP_OVL_ADAPTOR] = "ovl_adaptor", [MTK_DISP_POSTMASK] = "postmask", [MTK_DISP_PWM] = "pwm", [MTK_DISP_RDMA] = "rdma", @@ -443,6 +457,7 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = { [DDP_COMPONENT_OVL_2L0] = { MTK_DISP_OVL_2L, 0, &ddp_ovl }, [DDP_COMPONENT_OVL_2L1] = { MTK_DISP_OVL_2L, 1, &ddp_ovl }, [DDP_COMPONENT_OVL_2L2] = { MTK_DISP_OVL_2L, 2, &ddp_ovl }, + [DDP_COMPONENT_OVL_ADAPTOR] = { MTK_DISP_OVL_ADAPTOR, 0, &ddp_ovl_adaptor }, [DDP_COMPONENT_POSTMASK0] = { MTK_DISP_POSTMASK, 0, &ddp_postmask }, [DDP_COMPONENT_PWM0] = { MTK_DISP_PWM, 0, NULL }, [DDP_COMPONENT_PWM1] = { MTK_DISP_PWM, 1, NULL }, @@ -548,12 +563,17 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
comp->id = comp_id; comp->funcs = mtk_ddp_matches[comp_id].funcs; - comp_pdev = of_find_device_by_node(node); - if (!comp_pdev) { - DRM_INFO("Waiting for device %s\n", node->full_name); - return -EPROBE_DEFER; + /* Not all drm components have a DTS device node, such as ovl_adaptor, + * which is the drm bring up sub driver + */ + if (node) { + comp_pdev = of_find_device_by_node(node); + if (!comp_pdev) { + DRM_INFO("Waiting for device %s\n", node->full_name); + return -EPROBE_DEFER; + } + comp->dev = &comp_pdev->dev; } - comp->dev = &comp_pdev->dev;
/* Only DMA capable components need the LARB property */ if (type == MTK_DISP_OVL || @@ -573,6 +593,7 @@ int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp, type == MTK_DISP_MERGE || type == MTK_DISP_OVL || type == MTK_DISP_OVL_2L || + type == MTK_DISP_OVL_ADAPTOR || type == MTK_DISP_PWM || type == MTK_DISP_RDMA || type == MTK_DPI || diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index 4f7fae41c916..1862eba41c45 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -30,6 +30,7 @@ enum mtk_ddp_comp_type { MTK_DISP_OD, MTK_DISP_OVL, MTK_DISP_OVL_2L, + MTK_DISP_OVL_ADAPTOR, MTK_DISP_POSTMASK, MTK_DISP_PWM, MTK_DISP_RDMA, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index a05703843af2..99f37f8f6639 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -351,9 +351,7 @@ static int mtk_drm_kms_init(struct drm_device *drm) { struct mtk_drm_private *private = drm->dev_private; struct mtk_drm_private *priv_n; - struct platform_device *pdev; - struct device_node *np = NULL; - struct device *dma_dev; + struct device *dma_dev = NULL; int ret, i, j;
ret = drmm_mode_config_init(drm); @@ -388,7 +386,6 @@ static int mtk_drm_kms_init(struct drm_device *drm) * different drm private data structures. Loop through crtc index to * create crtc from the main path and then ext_path and finally the * third path. - * 3. Use OVL device for all DMA memory allocations */ for (i = 0; i < MAX_CRTC; i++) { for (j = 0; j < private->data->mmsys_dev_num; j++) { @@ -400,9 +397,6 @@ static int mtk_drm_kms_init(struct drm_device *drm) if (ret) goto err_component_unbind;
- if (!np) - np = priv_n->comp_node[priv_n->data->main_path[0]]; - continue; } else if (i == 1 && priv_n->data->ext_len) { ret = mtk_drm_crtc_create(drm, priv_n->data->ext_path, @@ -410,9 +404,6 @@ static int mtk_drm_kms_init(struct drm_device *drm) if (ret) goto err_component_unbind;
- if (!np) - np = priv_n->comp_node[priv_n->data->ext_path[0]]; - continue; } else if (i == 2 && priv_n->data->third_len) { ret = mtk_drm_crtc_create(drm, priv_n->data->third_path, @@ -420,22 +411,19 @@ static int mtk_drm_kms_init(struct drm_device *drm) if (ret) goto err_component_unbind;
- if (!np) - np = priv_n->comp_node[priv_n->data->third_path[0]]; - continue; } } }
- pdev = of_find_device_by_node(np); - if (!pdev) { + /* Use OVL device for all DMA memory allocations */ + dma_dev = mtk_drm_crtc_dma_dev_get(drm_crtc_from_index(drm, 0)); + if (!dma_dev) { ret = -ENODEV; dev_err(drm->dev, "Need at least one OVL device\n"); goto err_component_unbind; }
- dma_dev = &pdev->dev; for (i = 0; i < private->data->mmsys_dev_num; i++) private->all_drm_private[i]->dma_dev = dma_dev;
@@ -514,6 +502,11 @@ static int compare_of(struct device *dev, void *data) return dev->of_node == data; }
+static int compare_dev(struct device *dev, void *data) +{ + return dev == (struct device *)data; +} + static int mtk_drm_bind(struct device *dev) { struct mtk_drm_private *private = dev_get_drvdata(dev); @@ -702,6 +695,7 @@ static int mtk_drm_probe(struct platform_device *pdev) struct mtk_drm_private *private; struct device_node *node; struct component_match *match = NULL; + struct platform_device *ovl_adaptor; int ret; int i;
@@ -727,6 +721,18 @@ static int mtk_drm_probe(struct platform_device *pdev) return -ENODEV; }
+ /* Bringup ovl_adaptor */ + if (mtk_drm_find_mmsys_comp(private, DDP_COMPONENT_OVL_ADAPTOR)) { + ovl_adaptor = platform_device_register_data(dev, "mediatek-disp-ovl-adaptor", + PLATFORM_DEVID_AUTO, + (void *)private->mmsys_dev, + sizeof(*private->mmsys_dev)); + private->ddp_comp[DDP_COMPONENT_OVL_ADAPTOR].dev = &ovl_adaptor->dev; + mtk_ddp_comp_init(NULL, &private->ddp_comp[DDP_COMPONENT_OVL_ADAPTOR], + DDP_COMPONENT_OVL_ADAPTOR); + component_match_add(dev, &match, compare_dev, &ovl_adaptor->dev); + } + /* Iterate over sibling DISP function blocks */ for_each_child_of_node(phandle->parent, node) { const struct of_device_id *of_id; @@ -780,6 +786,7 @@ static int mtk_drm_probe(struct platform_device *pdev) comp_type == MTK_DISP_MERGE || comp_type == MTK_DISP_OVL || comp_type == MTK_DISP_OVL_2L || + comp_type == MTK_DISP_OVL_ADAPTOR || comp_type == MTK_DISP_RDMA || comp_type == MTK_DPI || comp_type == MTK_DSI) { @@ -882,6 +889,7 @@ static struct platform_driver * const mtk_drm_drivers[] = { &mtk_disp_color_driver, &mtk_disp_gamma_driver, &mtk_disp_merge_driver, + &mtk_disp_ovl_adaptor_driver, &mtk_disp_ovl_driver, &mtk_disp_rdma_driver, &mtk_dpi_driver,