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From:   Yunfei Dong <yunfei.dong@mediatek.com>
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Subject: [PATCH v9, 18/19] media: mtk-vcodec: Remove mtk_vcodec_release_dec_pm
Date:   Tue, 9 Nov 2021 20:50:29 +0800
Message-ID: <20211109125030.26299-19-yunfei.dong@mediatek.com>
In-Reply-To: <20211109125030.26299-1-yunfei.dong@mediatek.com>
References: <20211109125030.26299-1-yunfei.dong@mediatek.com>
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Precedence: bulk

There are only two lines in mtk_vcodec_release_dec_pm, using
pm_runtime_disable and put_device instead directly.

Move pm_runtime_enable outside mtk_vcodec_init_dec_pm to symmetry with
pm_runtime_disable, after that, rename mtk_vcodec_init_dec_pm to *_clk since
it only has clock operations now.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Co-developed-by: Yong Wu <yong.wu@mediatek.com>
---
new patch to remove: mtk_vcodec_release_dec_pm
---
 .../media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c    | 10 +++++++---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c |  7 +++++--
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 11 ++---------
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h |  3 +--
 4 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index affef6c7c8b5..2f3530eeaa6a 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -11,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/of_device.h>
 #include <linux/of.h>
+#include <linux/pm_runtime.h>
 #include <media/v4l2-event.h>
 #include <media/v4l2-mem2mem.h>
 #include <media/videobuf2-dma-contig.h>
@@ -164,11 +165,12 @@ static int mtk_vcodec_init_dec_params(struct mtk_vcodec_dev *dev)
 			return ret;
 		}
 
-		ret = mtk_vcodec_init_dec_pm(pdev, &dev->pm);
+		ret = mtk_vcodec_init_dec_clk(pdev, &dev->pm);
 		if (ret < 0) {
 			dev_err(&pdev->dev, "failed to get mt vcodec clock source");
 			return ret;
 		}
+		pm_runtime_enable(&pdev->dev);
 	}
 
 	return 0;
@@ -482,7 +484,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	if (IS_VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch))
 		destroy_workqueue(dev->core_workqueue);
 err_res:
-	mtk_vcodec_release_dec_pm(&dev->pm);
+	pm_runtime_disable(dev->pm.dev);
+	put_device(dev->pm.larbvdec);
 err_dec_pm:
 	mtk_vcodec_fw_release(dev->fw_handler);
 	return ret;
@@ -526,7 +529,8 @@ static int mtk_vcodec_dec_remove(struct platform_device *pdev)
 		video_unregister_device(dev->vfd_dec);
 
 	v4l2_device_unregister(&dev->v4l2_dev);
-	mtk_vcodec_release_dec_pm(&dev->pm);
+	pm_runtime_disable(dev->pm.dev);
+	put_device(dev->pm.larbvdec);
 	mtk_vcodec_fw_release(dev->fw_handler);
 	return 0;
 }
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
index c3488e3fa6af..5f61e260a218 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
@@ -9,6 +9,7 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/slab.h>
 
 #include "mtk_vcodec_drv.h"
@@ -113,9 +114,10 @@ static int mtk_vdec_hw_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	subdev_dev->plat_dev = pdev;
-	ret = mtk_vcodec_init_dec_pm(pdev, &subdev_dev->pm);
+	ret = mtk_vcodec_init_dec_clk(pdev, &subdev_dev->pm);
 	if (ret)
 		return ret;
+	pm_runtime_enable(&pdev->dev);
 
 	subdev_dev->reg_base[VDEC_HW_MISC] =
 		devm_platform_ioremap_resource_byname(pdev, "misc");
@@ -148,7 +150,8 @@ static int mtk_vdec_hw_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, subdev_dev);
 	return 0;
 err:
-	mtk_vcodec_release_dec_pm(&subdev_dev->pm);
+	pm_runtime_disable(subdev_dev->pm.dev);
+	put_device(subdev_dev->pm.larbvdec);
 	return ret;
 }
 
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
index 6435ccb13d37..a54871325325 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
@@ -15,7 +15,7 @@
 #include "mtk_vcodec_dec_pm.h"
 #include "mtk_vcodec_util.h"
 
-int mtk_vcodec_init_dec_pm(struct platform_device *pdev,
+int mtk_vcodec_init_dec_clk(struct platform_device *pdev,
 	struct mtk_vcodec_pm *pm)
 {
 	struct device_node *node;
@@ -79,14 +79,7 @@ int mtk_vcodec_init_dec_pm(struct platform_device *pdev,
 	put_device(pm->larbvdec);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(mtk_vcodec_init_dec_pm);
-
-void mtk_vcodec_release_dec_pm(struct mtk_vcodec_pm *pm)
-{
-	pm_runtime_disable(pm->dev);
-	put_device(pm->larbvdec);
-}
-EXPORT_SYMBOL_GPL(mtk_vcodec_release_dec_pm);
+EXPORT_SYMBOL_GPL(mtk_vcodec_init_dec_clk);
 
 int mtk_vcodec_dec_pw_on(struct mtk_vcodec_dev *vdec_dev, int hw_idx)
 {
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
index 6ae29fea4e7f..c4121df9764f 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
@@ -9,9 +9,8 @@
 
 #include "mtk_vcodec_drv.h"
 
-int mtk_vcodec_init_dec_pm(struct platform_device *pdev,
+int mtk_vcodec_init_dec_clk(struct platform_device *pdev,
 	struct mtk_vcodec_pm *pm);
-void mtk_vcodec_release_dec_pm(struct mtk_vcodec_pm *pm);
 
 int mtk_vcodec_dec_pw_on(struct mtk_vcodec_dev *vdec_dev, int hw_idx);
 void mtk_vcodec_dec_pw_off(struct mtk_vcodec_dev *vdec_dev, int hw_idx);
-- 
2.25.1