linux-kernel - [PATCH v2, 05/10] media: mtk-vcodec: mtk-vcodec: Rewrite venc power manage interface

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Message-ID: <20220117120615.21687-6-irui.wang@mediatek.com>
Date:   Mon, 17 Jan 2022 20:06:10 +0800
From:   Irui Wang <irui.wang@...iatek.com>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        Tzung-Bi Shih <tzungbi@...omium.org>,
        Alexandre Courbot <acourbot@...omium.org>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Tomasz Figa <tfiga@...gle.com>, Yong Wu <yong.wu@...iatek.com>,
        <angelogioacchino.delregno@...labora.com>
CC:     Hsin-Yi Wang <hsinyi@...omium.org>,
        Maoguang Meng <maoguang.meng@...iatek.com>,
        Longfei Wang <longfei.wang@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        Fritz Koenig <frkoenig@...omium.org>,
        Irui Wang <irui.wang@...iatek.com>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>,
        <linux-mediatek@...ts.infradead.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH v2, 05/10] media: mtk-vcodec: mtk-vcodec: Rewrite venc power manage interface

The args "struct mtk_vcodec_dev *" doesn't appropriate for init_clk
functions because of sub-devices. For main device, it has no "pm/clk"
properties in dtsi, sub-devices will init their own "pm/clk" instead.
So rewrite the pm interface with args "platform_device *" and
"mtk_vcodec_pm*".

Signed-off-by: Irui Wang <irui.wang@...iatek.com>
---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_core.c | 9 +++++++++
 drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c  | 2 +-
 drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c   | 9 ++-------
 drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.h   | 4 ++--
 4 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_core.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_core.c
index d84914f615a5..3835b9f458bf 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_core.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_core.c
@@ -13,6 +13,7 @@
 #include "mtk_vcodec_drv.h"
 #include "mtk_vcodec_enc.h"
 #include "mtk_vcodec_enc_core.h"
+#include "mtk_vcodec_enc_pm.h"
 
 static const struct of_device_id mtk_venc_core_ids[] = {
 	{
@@ -95,6 +96,13 @@ static int mtk_venc_core_probe(struct platform_device *pdev)
 
 	core->plat_dev = pdev;
 
+	ret = mtk_vcodec_init_enc_clk(core->plat_dev, &core->pm);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to get venc core clock source!");
+		return ret;
+	}
+	pm_runtime_enable(&pdev->dev);
+
 	core->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(core->reg_base)) {
 		dev_err(&pdev->dev, "Failed to get reg base");
@@ -137,6 +145,7 @@ static int mtk_venc_core_probe(struct platform_device *pdev)
 	return 0;
 
 err:
+	pm_runtime_disable(core->pm.dev);
 	return ret;
 }
 
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
index 9d48c604bc54..a601d534d26b 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
@@ -262,7 +262,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	core_type = dev->venc_pdata->core_type;
 
 	if (dev->venc_pdata->core_mode == VENC_SINGLE_CORE_MODE) {
-		ret = mtk_vcodec_init_enc_clk(dev);
+		ret = mtk_vcodec_init_enc_clk(dev->plat_dev, &dev->pm);
 		if (ret < 0) {
 			dev_err(&pdev->dev,
 				"Failed to get mtk vcodec clock source!");
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c
index 7eba1a990ed7..c8a7042d7830 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c
@@ -13,19 +13,15 @@
 #include "mtk_vcodec_enc_pm.h"
 #include "mtk_vcodec_util.h"
 
-int mtk_vcodec_init_enc_clk(struct mtk_vcodec_dev *mtkdev)
+int mtk_vcodec_init_enc_clk(struct platform_device *pdev,
+			    struct mtk_vcodec_pm *pm)
 {
 	struct device_node *node;
-	struct platform_device *pdev;
-	struct mtk_vcodec_pm *pm;
 	struct mtk_vcodec_clk *enc_clk;
 	struct mtk_vcodec_clk_info *clk_info;
 	int ret = 0, i = 0;
 	struct device *dev;
 
-	pdev = mtkdev->plat_dev;
-	pm = &mtkdev->pm;
-	memset(pm, 0, sizeof(struct mtk_vcodec_pm));
 	pm->dev = &pdev->dev;
 	dev = &pdev->dev;
 	enc_clk = &pm->venc_clk;
@@ -42,7 +38,6 @@ int mtk_vcodec_init_enc_clk(struct mtk_vcodec_dev *mtkdev)
 		return -ENODEV;
 	}
 	pm->larbvenc = &pdev->dev;
-	pdev = mtkdev->plat_dev;
 	pm->dev = &pdev->dev;
 
 	enc_clk->clk_num = of_property_count_strings(pdev->dev.of_node,
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.h
index bc455cefc0cd..97a394c68f4e 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.h
@@ -9,8 +9,8 @@
 
 #include "mtk_vcodec_drv.h"
 
-int mtk_vcodec_init_enc_clk(struct mtk_vcodec_dev *dev);
-
+int mtk_vcodec_init_enc_clk(struct platform_device *pdev,
+			    struct mtk_vcodec_pm *pm);
 void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm);
 void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm);
 
-- 
2.18.0