diff options
| author | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2020-10-19 08:15:22 +0800 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2020-12-29 07:11:12 +0800 |
| commit | 6ea6f8276725dc60cf8fe9a023b5f2c4cbb673a3 (patch) | |
| tree | 663dbb101c7ebb5bdd3fbe7c566d586bf7f14bea /drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | |
| parent | c822584e27911c5af089a366cb5eca378a1cd5ea (diff) | |
drm/mediatek: Use correct device pointer to get CMDQ client register
Some ddp component use mmsys device pointer to get CMDQ client
register, this would get mmsys' CMDQ client register, so use
each ddp component's device pointer to get.
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index cab53431ceec..1730b3ddef70 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -465,10 +465,11 @@ unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm, return ret; } -int mtk_ddp_comp_init(struct device *dev, struct device_node *node, - struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id, - const struct mtk_ddp_comp_funcs *funcs) +int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp, + enum mtk_ddp_comp_id comp_id, const struct mtk_ddp_comp_funcs *funcs) { + struct platform_device *comp_pdev; + struct device *dev; enum mtk_ddp_comp_type type; struct device_node *larb_node; struct platform_device *larb_pdev; @@ -506,10 +507,16 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *node, if (IS_ERR(comp->clk)) return PTR_ERR(comp->clk); + comp_pdev = of_find_device_by_node(node); + if (!comp_pdev) { + DRM_INFO("Waiting for device %s\n", node->full_name); + return -EPROBE_DEFER; + } + dev = &comp_pdev->dev; + #if IS_REACHABLE(CONFIG_MTK_CMDQ) if (of_address_to_resource(node, 0, &res) != 0) { dev_err(dev, "Missing reg in %s node\n", node->full_name); - put_device(&larb_pdev->dev); return -EINVAL; } comp->regs_pa = res.start; |