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From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
To: Philipp Zabel <p.zabel@pengutronix.de>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	linux-mediatek@lists.infradead.org,
	Chun-Kuang Hu <chunkuang.hu@kernel.org>
Subject: [PATCH 02/11] drm/mediatek: Use correct device pointer to get CMDQ client register
Date: Tue,  3 Nov 2020 08:34:13 +0800
Message-ID: <20201103003422.17838-3-chunkuang.hu@kernel.org> (raw)
In-Reply-To: <20201103003422.17838-1-chunkuang.hu@kernel.org>

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>
---
 drivers/gpu/drm/mediatek/mtk_disp_color.c   |  2 +-
 drivers/gpu/drm/mediatek/mtk_disp_ovl.c     |  2 +-
 drivers/gpu/drm/mediatek/mtk_disp_rdma.c    |  2 +-
 drivers/gpu/drm/mediatek/mtk_dpi.c          |  2 +-
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 14 +++++++++++---
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |  5 ++---
 drivers/gpu/drm/mediatek/mtk_drm_drv.c      |  2 +-
 drivers/gpu/drm/mediatek/mtk_dsi.c          |  2 +-
 8 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c b/drivers/gpu/drm/mediatek/mtk_disp_color.c
index 3ae9c810845b..461d96cb5cfa 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_color.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c
@@ -116,7 +116,7 @@ static int mtk_disp_color_probe(struct platform_device *pdev)
 		return comp_id;
 	}
 
-	ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id,
+	ret = mtk_ddp_comp_init(dev->of_node, &priv->ddp_comp, comp_id,
 				&mtk_disp_color_funcs);
 	if (ret) {
 		if (ret != -EPROBE_DEFER)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index 28651bc579bc..f89a2b3e56f4 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -383,7 +383,7 @@ static int mtk_disp_ovl_probe(struct platform_device *pdev)
 		return comp_id;
 	}
 
-	ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id,
+	ret = mtk_ddp_comp_init(dev->of_node, &priv->ddp_comp, comp_id,
 				&mtk_disp_ovl_funcs);
 	if (ret) {
 		if (ret != -EPROBE_DEFER)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index e04319fedf46..7a5dad4a2597 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -291,7 +291,7 @@ static int mtk_disp_rdma_probe(struct platform_device *pdev)
 		return comp_id;
 	}
 
-	ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id,
+	ret = mtk_ddp_comp_init(dev->of_node, &priv->ddp_comp, comp_id,
 				&mtk_disp_rdma_funcs);
 	if (ret) {
 		if (ret != -EPROBE_DEFER)
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index cf11c4850b40..6852b76fa583 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -784,7 +784,7 @@ static int mtk_dpi_probe(struct platform_device *pdev)
 		return comp_id;
 	}
 
-	ret = mtk_ddp_comp_init(dev, dev->of_node, &dpi->ddp_comp, comp_id,
+	ret = mtk_ddp_comp_init(dev->of_node, &dpi->ddp_comp, comp_id,
 				&mtk_dpi_funcs);
 	if (ret) {
 		dev_err(dev, "Failed to initialize component: %d\n", ret);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index c17c0e4c030f..93a10550a147 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;
@@ -506,6 +507,13 @@ 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);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index 1d9e00b69462..3bd6012d0746 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -204,9 +204,8 @@ int mtk_ddp_comp_get_id(struct device_node *node,
 			enum mtk_ddp_comp_type comp_type);
 unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
 						struct mtk_ddp_comp ddp_comp);
-int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_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 *comp_node, struct mtk_ddp_comp *comp,
+		      enum mtk_ddp_comp_id comp_id, const struct mtk_ddp_comp_funcs *funcs);
 int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
 void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
 void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 59c85c63b7cc..e4a8769f200f 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -538,7 +538,7 @@ static int mtk_drm_probe(struct platform_device *pdev)
 				goto err_node;
 			}
 
-			ret = mtk_ddp_comp_init(dev->parent, node, comp,
+			ret = mtk_ddp_comp_init(node, comp,
 						comp_id, NULL);
 			if (ret) {
 				of_node_put(node);
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 4a188a942c38..86109698f19c 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -1114,7 +1114,7 @@ static int mtk_dsi_probe(struct platform_device *pdev)
 		goto err_unregister_host;
 	}
 
-	ret = mtk_ddp_comp_init(dev, dev->of_node, &dsi->ddp_comp, comp_id,
+	ret = mtk_ddp_comp_init(dev->of_node, &dsi->ddp_comp, comp_id,
 				&mtk_dsi_funcs);
 	if (ret) {
 		dev_err(dev, "Failed to initialize component: %d\n", ret);
-- 
2.17.1


  parent reply index

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-03  0:34 [PATCH 00/11] Decouple Mediatek DRM sub driver Chun-Kuang Hu
2020-11-03  0:34 ` [PATCH 01/11] drm/mediatek: Get CMDQ client register for all ddp component Chun-Kuang Hu
2020-11-03  0:34 ` Chun-Kuang Hu [this message]
2020-11-03  0:34 ` [PATCH 03/11] drm/mediatek: Move clk info from struct mtk_ddp_comp to sub driver private data Chun-Kuang Hu
2020-11-03  0:34 ` [PATCH 04/11] drm/mediatek: Move regs " Chun-Kuang Hu
2020-11-03  0:34 ` [PATCH 05/11] drm/mediatek: Remove irq in struct mtk_ddp_comp Chun-Kuang Hu
2020-11-03  0:34 ` [PATCH 06/11] drm/mediatek: Use struct cmdq_client_reg to gather cmdq variable Chun-Kuang Hu
2020-11-03  0:34 ` [PATCH 07/11] drm/mediatek: Move cmdq_reg info from struct mtk_ddp_comp to sub driver private data Chun-Kuang Hu
2020-11-03  0:34 ` [PATCH 08/11] drm/mediatek: Change sub driver interface from mtk_ddp_comp to device Chun-Kuang Hu
2020-11-03  0:34 ` [PATCH 09/11] drm/mediatek: Register vblank callback function Chun-Kuang Hu
2020-11-03  0:34 ` [PATCH 10/11] drm/mediatek: DRM driver directly refer to sub driver's function Chun-Kuang Hu
2020-11-03  0:34 ` [PATCH 11/11] drm/mediatek: Move mtk_ddp_comp_init() from sub driver to DRM driver Chun-Kuang Hu
2020-11-15 23:33 ` [PATCH 00/11] Decouple Mediatek DRM sub driver Chun-Kuang Hu
2020-11-16 16:18   ` Chun-Kuang Hu

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