[PATCH v3 5/8] media: mtk-mdp: search for vpu node instead of linking it to a property
From: Eizan Miyamoto <hidden>
Date: 2021-06-18 07:53:10
Also in:
linux-arm-kernel, linux-mediatek, lkml
Subsystem:
media input infrastructure (v4l/dvb), the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
Since there is only one vpu node, it suffices to search for it instead of having a link coded into the primary mdp device node. Signed-off-by: Eizan Miyamoto <redacted> --- (no changes since v1) drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 6 ---- drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 28 +++++++++++++------ 2 files changed, 19 insertions(+), 15 deletions(-)
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
index fdbb46a5330a..3d9bb7265159 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c@@ -117,12 +117,6 @@ static int mtk_mdp_comp_bind(struct device *dev, struct device *master, if (vpu_node) { int ret; - mdp->vpu_dev = of_find_device_by_node(vpu_node); - if (WARN_ON(!mdp->vpu_dev)) { - dev_err(dev, "vpu pdev failed\n"); - of_node_put(vpu_node); - } - ret = v4l2_device_register(dev, &mdp->v4l2_dev); if (ret) { dev_err(dev, "Failed to register v4l2 device\n");
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
index 267e4cb4bf32..48e9a557c446 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c@@ -113,6 +113,7 @@ static void release_of(struct device *dev, void *data) static int mtk_mdp_master_bind(struct device *dev) { int status; + struct device_node *vpu_node; struct mtk_mdp_dev *mdp = dev_get_drvdata(dev); status = component_bind_all(dev, mdp);
@@ -121,15 +122,24 @@ static int mtk_mdp_master_bind(struct device *dev) goto err_component_bind_all; } - if (mdp->vpu_dev) { - int ret = vpu_wdt_reg_handler(mdp->vpu_dev, mtk_mdp_reset_handler, mdp, - VPU_RST_MDP); - if (ret) { - dev_err(dev, "Failed to register reset handler\n"); - goto err_wdt_reg; - } - } else { - dev_err(dev, "no vpu_dev found\n"); + vpu_node = of_find_node_by_name(NULL, "vpu"); + if (!vpu_node) { + dev_err(dev, "unable to find vpu node"); + status = -ENODEV; + goto err_wdt_reg; + } + + mdp->vpu_dev = of_find_device_by_node(vpu_node); + if (!mdp->vpu_dev) { + dev_err(dev, "unable to find vpu device"); + status = -ENODEV; + goto err_wdt_reg; + } + + status = vpu_wdt_reg_handler(mdp->vpu_dev, mtk_mdp_reset_handler, mdp, VPU_RST_MDP); + if (status) { + dev_err(dev, "Failed to register reset handler\n"); + goto err_wdt_reg; } status = mtk_mdp_register_m2m_device(mdp);
--
2.32.0.288.g62a8d224e6-goog