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From: Yong Wu <yong.wu@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	Joerg Roedel <joro@8bytes.org>, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
	David Airlie <airlied@linux.ie>,
	Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Evan Green <evgreen@chromium.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Tomasz Figa <tfiga@chromium.org>,
	Will Deacon <will.deacon@arm.com>,
	<linux-mediatek@lists.infradead.org>,
	<srv_heupstream@mediatek.com>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<iommu@lists.linux-foundation.org>, <yong.wu@mediatek.com>,
	<youlin.pei@mediatek.com>,
	Nicolas Boichat <drinkcat@chromium.org>,
	Matthias Kaehlcke <mka@chromium.org>, <anan.sun@mediatek.com>,
	<ming-fan.chen@mediatek.com>, <yi.kuo@mediatek.com>,
	<acourbot@chromium.org>, <linux-media@vger.kernel.org>,
	<dri-devel@lists.freedesktop.org>,
	Daniel Vetter <daniel@ffwll.ch>,
	Chun-Kuang Hu <chunkuang.hu@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Xia Jiang <xia.jiang@mediatek.com>,
	Tiffany Lin <tiffany.lin@mediatek.com>,
	Dafna Hirschfeld <dafna.hirschfeld@collabora.com>,
	Hsin-Yi Wang <hsinyi@chromium.org>,
	Eizan Miyamoto <eizan@chromium.org>, <anthony.huang@mediatek.com>,
	Frank Wunderlich <frank-w@public-files.de>,
	Minghsiu Tsai <minghsiu.tsai@mediatek.com>,
	Houlong Wei <houlong.wei@mediatek.com>
Subject: [PATCH v7 06/12] media: mtk-mdp: Get rid of mtk_smi_larb_get/put
Date: Fri, 30 Jul 2021 10:52:32 +0800	[thread overview]
Message-ID: <20210730025238.22456-7-yong.wu@mediatek.com> (raw)
In-Reply-To: <20210730025238.22456-1-yong.wu@mediatek.com>

MediaTek IOMMU has already added the device_link between the consumer
and smi-larb device. If the mdp device call the pm_runtime_get_sync,
the smi-larb's pm_runtime_get_sync also be called automatically.

CC: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
CC: Houlong Wei <houlong.wei@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Houlong Wei <houlong.wei@mediatek.com>
Reviewed-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Tested-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> # on mt8173
---
 drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 46 +------------------
 drivers/media/platform/mtk-mdp/mtk_mdp_comp.h |  2 -
 drivers/media/platform/mtk-mdp/mtk_mdp_core.c |  1 -
 3 files changed, 1 insertion(+), 48 deletions(-)

diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
index de2d425efdd1..5e0ea83a9f7f 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
@@ -13,7 +13,6 @@
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
-#include <soc/mediatek/smi.h>
 #include <linux/pm_runtime.h>
 
 #include "mtk_mdp_comp.h"
@@ -57,13 +56,6 @@ int mtk_mdp_comp_power_on(struct mtk_mdp_comp *comp)
 {
 	int status, err;
 
-	if (comp->larb_dev) {
-		err = mtk_smi_larb_get(comp->larb_dev);
-		if (err)
-			dev_err(comp->dev,
-				"failed to get larb, err %d.\n", err);
-	}
-
 	err = pm_runtime_get_sync(comp->dev);
 	if (err < 0) {
 		dev_err(comp->dev, "failed to runtime get, err %d.\n", err);
@@ -146,9 +138,6 @@ void mtk_mdp_comp_clock_off(struct mtk_mdp_comp *comp)
 			continue;
 		clk_disable_unprepare(comp->clk[i]);
 	}
-
-	if (comp->larb_dev)
-		mtk_smi_larb_put(comp->larb_dev);
 }
 
 /*
@@ -236,9 +225,6 @@ static const struct component_ops mtk_mdp_component_ops = {
 
 int mtk_mdp_comp_init(struct mtk_mdp_comp *comp, struct device *dev)
 {
-	struct device_node *larb_node;
-	struct platform_device *larb_pdev;
-	int ret;
 	int i;
 	struct device_node *node = dev->of_node;
 	enum mtk_mdp_comp_type comp_type =
@@ -252,8 +238,7 @@ int mtk_mdp_comp_init(struct mtk_mdp_comp *comp, struct device *dev)
 		if (IS_ERR(comp->clk[i])) {
 			if (PTR_ERR(comp->clk[i]) != -EPROBE_DEFER)
 				dev_err(dev, "Failed to get clock\n");
-			ret = PTR_ERR(comp->clk[i]);
-			goto err;
+			return PTR_ERR(comp->clk[i]);
 		}
 
 		/* Only RDMA needs two clocks */
@@ -261,36 +246,7 @@ int mtk_mdp_comp_init(struct mtk_mdp_comp *comp, struct device *dev)
 			break;
 	}
 
-	/* Only DMA capable components need the LARB property */
-	comp->larb_dev = NULL;
-	if (comp_type != MTK_MDP_RDMA &&
-	    comp_type != MTK_MDP_WDMA &&
-	    comp_type != MTK_MDP_WROT)
-		return 0;
-
-	larb_node = of_parse_phandle(node, "mediatek,larb", 0);
-	if (!larb_node) {
-		dev_err(dev,
-			"Missing mediadek,larb phandle in %pOF node\n", node);
-		ret = -EINVAL;
-		goto err;
-	}
-
-	larb_pdev = of_find_device_by_node(larb_node);
-	if (!larb_pdev) {
-		dev_warn(dev, "Waiting for larb device %pOF\n", larb_node);
-		of_node_put(larb_node);
-		ret = -EPROBE_DEFER;
-		goto err;
-	}
-	of_node_put(larb_node);
-
-	comp->larb_dev = &larb_pdev->dev;
-
 	return 0;
-
-err:
-	return ret;
 }
 
 static int mtk_mdp_comp_probe(struct platform_device *pdev)
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h
index 5201c47f7baa..2bd229cc7eae 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h
@@ -11,13 +11,11 @@
  * struct mtk_mdp_comp - the MDP's function component data
  * @node:	list node to track sibing MDP components
  * @clk:	clocks required for component
- * @larb_dev:	SMI device required for component
  * @dev:	component's device
  */
 struct mtk_mdp_comp {
 	struct list_head	node;
 	struct clk		*clk[2];
-	struct device           *larb_dev;
 	struct device		*dev;
 };
 
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
index e1fb39231248..be7d35b3e3ff 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
@@ -18,7 +18,6 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/workqueue.h>
-#include <soc/mediatek/smi.h>
 
 #include "mtk_mdp_comp.h"
 #include "mtk_mdp_core.h"
-- 
2.18.0


  parent reply	other threads:[~2021-07-30  2:54 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-30  2:52 [PATCH v7 00/12] Clean up "mediatek,larb" Yong Wu
2021-07-30  2:52 ` [PATCH v7 01/12] dt-binding: mediatek: Get rid of mediatek,larb for multimedia HW Yong Wu
2021-07-30  2:52 ` [PATCH v7 02/12] iommu/mediatek-v1: Free the existed fwspec if the master dev already has Yong Wu
2021-07-30  2:52 ` [PATCH v7 03/12] iommu/mediatek: Add probe_defer for smi-larb Yong Wu
2021-07-30  2:52 ` [PATCH v7 04/12] iommu/mediatek: Add device_link between the consumer and the larb devices Yong Wu
2021-08-05 13:22   ` Dafna Hirschfeld
2021-08-09  8:00     ` Yong Wu (吴勇)
2021-07-30  2:52 ` [PATCH v7 05/12] media: mtk-jpeg: Get rid of mtk_smi_larb_get/put Yong Wu
2021-07-30  2:52 ` Yong Wu [this message]
2021-07-30  2:52 ` [PATCH v7 07/12] drm/mediatek: Add pm runtime support for ovl and rdma Yong Wu
2021-07-30  2:52 ` [PATCH v7 08/12] drm/mediatek: Get rid of mtk_smi_larb_get/put Yong Wu
2021-07-30  2:52 ` [PATCH v7 09/12] media: mtk-vcodec: " Yong Wu
2021-07-30  2:52 ` [PATCH v7 10/12] memory: mtk-smi: " Yong Wu
2021-07-30  2:52 ` [PATCH v7 11/12] arm: dts: mediatek: Get rid of mediatek,larb for MM nodes Yong Wu
2021-07-30  2:52 ` [PATCH v7 12/12] arm64: " Yong Wu
2021-07-30 12:06 ` Aw: [PATCH v7 00/12] Clean up "mediatek,larb" Frank Wunderlich
2021-08-02  9:51 ` Joerg Roedel
2021-08-09  8:30   ` Yong Wu (吴勇)
2021-08-09  9:11     ` joro
2021-08-31 10:45 ` Yong Wu (吴勇)

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