From bf8275705565eb0050157d49b3d751bc286289e0 Mon Sep 17 00:00:00 2001 From: Yong Wu Date: Mon, 17 Jan 2022 08:05:07 +0100 Subject: [PATCH] media: mtk-vcodec: Get rid of mtk_smi_larb_get/put MediaTek IOMMU has already added the device_link between the consumer and smi-larb device. If the vcodec devices call the pm_runtime_get_sync, the smi-larb's pm_runtime_get_sync also be called automatically. CC: Irui Wang Signed-off-by: Yong Wu Reviewed-by: Evan Green Acked-by: Tiffany Lin Reviewed-by: Dafna Hirschfeld Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- .../media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 2 - .../media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c | 1 - .../media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 41 +++----------------- drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h | 3 -- drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c | 1 - .../media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 2 - .../media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c | 45 +++------------------- 7 files changed, 12 insertions(+), 83 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 86b639d..8d11510 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c @@ -450,7 +450,6 @@ err_core_workq: destroy_workqueue(dev->core_workqueue); err_res: pm_runtime_disable(dev->pm.dev); - put_device(dev->pm.larbvdec); err_dec_pm: mtk_vcodec_fw_release(dev->fw_handler); return ret; @@ -494,7 +493,6 @@ static int mtk_vcodec_dec_remove(struct platform_device *pdev) v4l2_device_unregister(&dev->v4l2_dev); 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 7b5da3e..8d2a641 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c @@ -184,7 +184,6 @@ static int mtk_vdec_hw_probe(struct platform_device *pdev) return 0; err: 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 44035a5..7e0c264 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c @@ -9,7 +9,6 @@ #include #include #include -#include #include "mtk_vcodec_dec_hw.h" #include "mtk_vcodec_dec_pm.h" @@ -17,25 +16,11 @@ int mtk_vcodec_init_dec_clk(struct platform_device *pdev, struct mtk_vcodec_pm *pm) { - struct device_node *node; - struct platform_device *larb_pdev; struct mtk_vcodec_clk *dec_clk; struct mtk_vcodec_clk_info *clk_info; - int i = 0, ret = 0; + int i = 0, ret; dec_clk = &pm->vdec_clk; - node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0); - if (!node) { - mtk_v4l2_err("of_parse_phandle mediatek,larb fail!"); - return -1; - } - - larb_pdev = of_find_device_by_node(node); - of_node_put(node); - if (WARN_ON(!larb_pdev)) - return -1; - - pm->larbvdec = &larb_pdev->dev; pm->dev = &pdev->dev; dec_clk->clk_num = @@ -44,14 +29,11 @@ int mtk_vcodec_init_dec_clk(struct platform_device *pdev, struct mtk_vcodec_pm * dec_clk->clk_info = devm_kcalloc(&pdev->dev, dec_clk->clk_num, sizeof(*clk_info), GFP_KERNEL); - if (!dec_clk->clk_info) { - ret = -ENOMEM; - goto put_device; - } + if (!dec_clk->clk_info) + return -ENOMEM; } else { mtk_v4l2_err("Failed to get vdec clock count"); - ret = -EINVAL; - goto put_device; + return -EINVAL; } for (i = 0; i < dec_clk->clk_num; i++) { @@ -60,22 +42,18 @@ int mtk_vcodec_init_dec_clk(struct platform_device *pdev, struct mtk_vcodec_pm * "clock-names", i, &clk_info->clk_name); if (ret) { mtk_v4l2_err("Failed to get clock name id = %d", i); - goto put_device; + return ret; } clk_info->vcodec_clk = devm_clk_get(&pdev->dev, clk_info->clk_name); if (IS_ERR(clk_info->vcodec_clk)) { mtk_v4l2_err("devm_clk_get (%d)%s fail", i, clk_info->clk_name); - ret = PTR_ERR(clk_info->vcodec_clk); - goto put_device; + return PTR_ERR(clk_info->vcodec_clk); } } return 0; -put_device: - put_device(pm->larbvdec); - return ret; } EXPORT_SYMBOL_GPL(mtk_vcodec_init_dec_clk); @@ -157,13 +135,7 @@ void mtk_vcodec_dec_clock_on(struct mtk_vcodec_dev *vdec_dev, int hw_idx) } } - ret = mtk_smi_larb_get(pm->larbvdec); - if (ret) { - mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret); - goto error; - } return; - error: for (i -= 1; i >= 0; i--) clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk); @@ -191,7 +163,6 @@ void mtk_vcodec_dec_clock_off(struct mtk_vcodec_dev *vdec_dev, int hw_idx) } dec_clk = &pm->vdec_clk; - mtk_smi_larb_put(pm->larbvdec); for (i = dec_clk->clk_num - 1; i >= 0; i--) clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk); } diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h index 94b47b7..813901c 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h @@ -214,10 +214,7 @@ struct mtk_vcodec_clk { */ struct mtk_vcodec_pm { struct mtk_vcodec_clk vdec_clk; - struct device *larbvdec; - struct mtk_vcodec_clk venc_clk; - struct device *larbvenc; struct device *dev; }; diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c index ffb046e..c213670 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c @@ -8,7 +8,6 @@ #include #include #include -#include #include #include "mtk_vcodec_drv.h" 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 507ad1e..e214873 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c @@ -371,7 +371,6 @@ err_enc_alloc: v4l2_device_unregister(&dev->v4l2_dev); err_res: pm_runtime_disable(dev->pm.dev); - put_device(dev->pm.larbvenc); err_enc_pm: mtk_vcodec_fw_release(dev->fw_handler); return ret; @@ -461,7 +460,6 @@ static int mtk_vcodec_enc_remove(struct platform_device *pdev) v4l2_device_unregister(&dev->v4l2_dev); pm_runtime_disable(dev->pm.dev); - put_device(dev->pm.larbvenc); mtk_vcodec_fw_release(dev->fw_handler); return 0; } 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 0825c6e..7055954 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c @@ -8,57 +8,35 @@ #include #include #include -#include #include "mtk_vcodec_enc_pm.h" #include "mtk_vcodec_util.h" int mtk_vcodec_init_enc_clk(struct mtk_vcodec_dev *mtkdev) { - 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; + int ret, i; 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; - node = of_parse_phandle(dev->of_node, "mediatek,larb", 0); - if (!node) { - mtk_v4l2_err("no mediatek,larb found"); - return -ENODEV; - } - pdev = of_find_device_by_node(node); - of_node_put(node); - if (!pdev) { - mtk_v4l2_err("no mediatek,larb device found"); - 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, "clock-names"); if (enc_clk->clk_num > 0) { enc_clk->clk_info = devm_kcalloc(&pdev->dev, enc_clk->clk_num, sizeof(*clk_info), GFP_KERNEL); - if (!enc_clk->clk_info) { - ret = -ENOMEM; - goto put_larbvenc; - } + if (!enc_clk->clk_info) + return -ENOMEM; } else { mtk_v4l2_err("Failed to get venc clock count"); - ret = -EINVAL; - goto put_larbvenc; + return -EINVAL; } for (i = 0; i < enc_clk->clk_num; i++) { @@ -67,23 +45,18 @@ int mtk_vcodec_init_enc_clk(struct mtk_vcodec_dev *mtkdev) "clock-names", i, &clk_info->clk_name); if (ret) { mtk_v4l2_err("venc failed to get clk name %d", i); - goto put_larbvenc; + return ret; } clk_info->vcodec_clk = devm_clk_get(&pdev->dev, clk_info->clk_name); if (IS_ERR(clk_info->vcodec_clk)) { mtk_v4l2_err("venc devm_clk_get (%d)%s fail", i, clk_info->clk_name); - ret = PTR_ERR(clk_info->vcodec_clk); - goto put_larbvenc; + return PTR_ERR(clk_info->vcodec_clk); } } return 0; - -put_larbvenc: - put_device(pm->larbvenc); - return ret; } void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm) @@ -100,11 +73,6 @@ void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm) } } - ret = mtk_smi_larb_get(pm->larbvenc); - if (ret) { - mtk_v4l2_err("mtk_smi_larb_get larb3 fail %d", ret); - goto clkerr; - } return; clkerr: @@ -117,7 +85,6 @@ void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm) struct mtk_vcodec_clk *enc_clk = &pm->venc_clk; int i = 0; - mtk_smi_larb_put(pm->larbvenc); for (i = enc_clk->clk_num - 1; i >= 0; i--) clk_disable_unprepare(enc_clk->clk_info[i].vcodec_clk); } -- 2.7.4