linux-kernel - [PATCH v2 01/12] drm/mediatek: Get CMDQ client register for all ddp component

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Message-Id: <20201210161050.8460-2-chunkuang.hu@kernel.org>
Date:   Fri, 11 Dec 2020 00:10:39 +0800
From:   Chun-Kuang Hu <chunkuang.hu@...nel.org>
To:     Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>
Subject: [PATCH v2 01/12] drm/mediatek: Get CMDQ client register for all ddp component

Only OVL, RDMA,and WDMA get CMDQ client register information,
but all ddp component should work with CMDQ, so get this
information for all ddp component.

Signed-off-by: Chun-Kuang Hu <chunkuang.hu@...nel.org>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 29 +++++++++++----------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 3064eac1a750..cab53431ceec 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -506,6 +506,21 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *node,
 	if (IS_ERR(comp->clk))
 		return PTR_ERR(comp->clk);
 
+#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;
+
+	ret = cmdq_dev_get_client_reg(dev, &cmdq_reg, 0);
+	if (ret)
+		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+	else
+		comp->subsys = cmdq_reg.subsys;
+#endif
+
 	/* Only DMA capable components need the LARB property */
 	comp->larb_dev = NULL;
 	if (type != MTK_DISP_OVL &&
@@ -531,20 +546,6 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *node,
 
 	comp->larb_dev = &larb_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;
-
-	ret = cmdq_dev_get_client_reg(dev, &cmdq_reg, 0);
-	if (ret)
-		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
-	else
-		comp->subsys = cmdq_reg.subsys;
-#endif
 	return 0;
 }
 
-- 
2.17.1