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Tue, 27 Jul 2021 03:11:34 -0700 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 27 Jul 2021 03:11:32 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 27 Jul 2021 18:11:30 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 27 Jul 2021 18:11:29 +0800 From: Yunfei Dong To: Yunfei Dong , Alexandre Courbot , Hans Verkuil , "Tzung-Bi Shih" , Tiffany Lin , Andrew-CT Chen , Mauro Carvalho Chehab , Rob Herring , Matthias Brugger , Tomasz Figa CC: Hsin-Yi Wang , Fritz Koenig , Irui Wang , , , , , , , Subject: [PATCH v3, 04/15] media: mtk-vcodec: Use component framework to manage each hardware information Date: Tue, 27 Jul 2021 18:10:40 +0800 Message-ID: <20210727101051.24418-5-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210727101051.24418-1-yunfei.dong@mediatek.com> References: <20210727101051.24418-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210727_031137_900646_7D42D35A X-CRM114-Status: GOOD ( 27.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Uses component framework to manage each hardware information which includes irq/power/clk. The hardware includes LAT0, LAT1 and CORE. Signed-off-by: Yunfei Dong --- v3: 1: fix of_node_put no correctly 2: remove useless functions 3: change is_support_comp to is_comp_supported 4: fix some coding comments --- drivers/media/platform/mtk-vcodec/Makefile | 1 + .../platform/mtk-vcodec/mtk_vcodec_dec.h | 1 + .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 211 +++++++++++++++--- .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c | 184 +++++++++++++++ .../platform/mtk-vcodec/mtk_vcodec_dec_hw.h | 44 ++++ .../platform/mtk-vcodec/mtk_vcodec_drv.h | 24 ++ 6 files changed, 431 insertions(+), 34 deletions(-) create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h diff --git a/drivers/media/platform/mtk-vcodec/Makefile b/drivers/media/platform/mtk-vcodec/Makefile index ca8e9e7a9c4e..edeb3b66e9e9 100644 --- a/drivers/media/platform/mtk-vcodec/Makefile +++ b/drivers/media/platform/mtk-vcodec/Makefile @@ -15,6 +15,7 @@ mtk-vcodec-dec-y := vdec/vdec_h264_if.o \ mtk_vcodec_dec_stateful.o \ mtk_vcodec_dec_stateless.o \ mtk_vcodec_dec_pm.o \ + mtk_vcodec_dec_hw.o \ mtk-vcodec-enc-y := venc/venc_vp8_if.o \ venc/venc_h264_if.o \ diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h index 9fbd24186c1a..c509224cbff4 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h @@ -66,6 +66,7 @@ extern const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops; extern const struct v4l2_m2m_ops mtk_vdec_m2m_ops; extern const struct media_device_ops mtk_vcodec_media_ops; +extern struct platform_driver mtk_vdec_comp_driver; /* * mtk_vdec_lock/mtk_vdec_unlock are for ctx instance to 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 e8b2a6355b3e..a3653d40a579 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c @@ -5,6 +5,7 @@ * Tiffany Lin */ +#include #include #include #include @@ -23,14 +24,92 @@ #include "mtk_vcodec_util.h" #include "mtk_vcodec_fw.h" -#define VDEC_HW_ACTIVE 0x10 -#define VDEC_IRQ_CFG 0x11 -#define VDEC_IRQ_CLR 0x10 -#define VDEC_IRQ_CFG_REG 0xa4 - module_param(mtk_v4l2_dbg_level, int, 0644); module_param(mtk_vcodec_dbg, bool, 0644); +static struct of_device_id mtk_vdec_drv_ids[] = { + { + .compatible = "mediatek,mtk-vcodec-lat", + .data = (void *)MTK_VDEC_LAT0, + }, + { + .compatible = "mediatek,mtk-vcodec-core", + .data = (void *)MTK_VDEC_CORE, + }, + {}, +}; + +static inline int mtk_vdec_compare_of(struct device *dev, void *data) +{ + return dev->of_node == data; +} + +static inline void mtk_vdec_release_of(struct device *dev, void *data) +{ + of_node_put(data); +} + +static inline int mtk_vdec_bind(struct device *dev) +{ + struct mtk_vcodec_dev *data = dev_get_drvdata(dev); + + return component_bind_all(dev, data); +} + +static inline void mtk_vdec_unbind(struct device *dev) +{ + struct mtk_vcodec_dev *data = dev_get_drvdata(dev); + + component_unbind_all(dev, data); +} + +static const struct component_master_ops mtk_vdec_ops = { + .bind = mtk_vdec_bind, + .unbind = mtk_vdec_unbind, +}; + +static struct component_match *mtk_vcodec_match_add( + struct mtk_vcodec_dev *vdec_dev) + { + struct platform_device *pdev = vdec_dev->plat_dev; + struct component_match *match = NULL; + int i; + + for (i = 0; i < ARRAY_SIZE(mtk_vdec_drv_ids); i++) { + struct device_node *comp_node; + enum mtk_vdec_hw_id comp_idx; + const struct of_device_id *of_id; + + comp_node = of_find_compatible_node(NULL, NULL, + mtk_vdec_drv_ids[i].compatible); + if (!comp_node) + continue; + + if (!of_device_is_available(comp_node)) { + of_node_put(comp_node); + dev_err(&pdev->dev, "Fail to get MMSYS node\n"); + continue; + } + + of_id = &mtk_vdec_drv_ids[i]; + if (!of_id) { + dev_err(&pdev->dev, "Failed to get match node\n"); + return ERR_PTR(-EINVAL); + } + + comp_idx = (enum mtk_vdec_hw_id)of_id->data; + mtk_v4l2_debug(4, "Get component:hw_id(%d),vdec_dev(0x%p),comp_node(0x%p)\n", + comp_idx, vdec_dev, comp_node); + vdec_dev->component_node[comp_idx] = comp_node; + + component_match_add_release(&pdev->dev, &match, mtk_vdec_release_of, + mtk_vdec_compare_of, comp_node); + of_node_put(comp_node); + } + + return match; +} + static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv) { struct mtk_vcodec_dev *dev = priv; @@ -95,6 +174,59 @@ static int mtk_vcodec_get_reg_bases(struct mtk_vcodec_dev *dev) return ret; } +static int mtk_vcodec_init_master(struct mtk_vcodec_dev *dev) +{ + struct platform_device *pdev = dev->plat_dev; + struct component_match *match; + int ret; + + match = mtk_vcodec_match_add(dev); + if (IS_ERR_OR_NULL(match)) + return -EINVAL; + + platform_set_drvdata(pdev, dev); + ret = component_master_add_with_match(&pdev->dev, &mtk_vdec_ops, match); + if (ret < 0) + return ret; + + return 0; +} + +static int mtk_vcodec_init_dec_params(struct mtk_vcodec_dev *dev) +{ + struct platform_device *pdev = dev->plat_dev; + int ret; + + ret = mtk_vcodec_get_reg_bases(dev); + if (ret) + return ret; + + if (!dev->is_comp_supported) { + dev->dec_irq = platform_get_irq(pdev, 0); + if (dev->dec_irq < 0) { + dev_err(&pdev->dev, "failed to get irq number"); + return dev->dec_irq; + } + + irq_set_status_flags(dev->dec_irq, IRQ_NOAUTOEN); + ret = devm_request_irq(&pdev->dev, dev->dec_irq, + mtk_vcodec_dec_irq_handler, 0, pdev->name, dev); + if (ret) { + dev_err(&pdev->dev, "failed to install dev->dec_irq %d (%d)", + dev->dec_irq, ret); + return ret; + } + + ret = mtk_vcodec_init_dec_pm(pdev, &dev->pm); + if (ret < 0) { + dev_err(&pdev->dev, "failed to get mt vcodec clock source"); + return ret; + } + } + + return ret; +} + static int fops_vcodec_open(struct file *file) { struct mtk_vcodec_dev *dev = video_drvdata(file); @@ -220,9 +352,9 @@ static int mtk_vcodec_probe(struct platform_device *pdev) { struct mtk_vcodec_dev *dev; struct video_device *vfd_dec; - struct resource *res; phandle rproc_phandle; enum mtk_vcodec_fw_type fw_type; + struct device_node *comp_node; int ret; dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); @@ -249,31 +381,17 @@ static int mtk_vcodec_probe(struct platform_device *pdev) if (IS_ERR(dev->fw_handler)) return PTR_ERR(dev->fw_handler); - ret = mtk_vcodec_init_dec_pm(dev->plat_dev, &dev->pm); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to get mt vcodec clock source"); - goto err_dec_pm; - } - - ret = mtk_vcodec_get_reg_bases(dev); - if (ret) - goto err_res; - - res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (res == NULL) { - dev_err(&pdev->dev, "failed to get irq resource"); - ret = -ENOENT; - goto err_res; - } + comp_node = + of_find_compatible_node(NULL, NULL, "mediatek,mtk-vcodec-core"); + if (!comp_node) + dev->is_comp_supported = false; + else + dev->is_comp_supported = true; + of_node_put(comp_node); - dev->dec_irq = platform_get_irq(pdev, 0); - irq_set_status_flags(dev->dec_irq, IRQ_NOAUTOEN); - ret = devm_request_irq(&pdev->dev, dev->dec_irq, - mtk_vcodec_dec_irq_handler, 0, pdev->name, dev); + ret = mtk_vcodec_init_dec_params(dev); if (ret) { - dev_err(&pdev->dev, "Failed to install dev->dec_irq %d (%d)", - dev->dec_irq, - ret); + dev_err(&pdev->dev, "Failed to init pm and registers"); goto err_res; } @@ -311,7 +429,6 @@ static int mtk_vcodec_probe(struct platform_device *pdev) MTK_VCODEC_DEC_NAME); video_set_drvdata(vfd_dec, dev); dev->vfd_dec = vfd_dec; - platform_set_drvdata(pdev, dev); dev->m2m_dev_dec = v4l2_m2m_init(&mtk_vdec_m2m_ops); if (IS_ERR((__force void *)dev->m2m_dev_dec)) { @@ -362,8 +479,17 @@ static int mtk_vcodec_probe(struct platform_device *pdev) mtk_v4l2_debug(0, "decoder registered as /dev/video%d", vfd_dec->num); - return 0; + if (dev->is_comp_supported) { + ret = mtk_vcodec_init_master(dev); + if (ret < 0) + goto err_component_match; + } else { + platform_set_drvdata(pdev, dev); + } + return 0; +err_component_match: + video_unregister_device(vfd_dec); err_dec_reg: if (dev->vdec_pdata->uses_stateless_api) media_device_unregister(&dev->mdev_dec); @@ -379,9 +505,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev) err_dec_alloc: v4l2_device_unregister(&dev->v4l2_dev); err_res: - mtk_vcodec_release_dec_pm(&dev->pm); -err_dec_pm: mtk_vcodec_fw_release(dev->fw_handler); + return ret; } @@ -436,7 +561,25 @@ static struct platform_driver mtk_vcodec_dec_driver = { }, }; -module_platform_driver(mtk_vcodec_dec_driver); +static struct platform_driver * const mtk_vdec_drivers[] = { + &mtk_vdec_comp_driver, + &mtk_vcodec_dec_driver, +}; + +static int __init mtk_vdec_init(void) +{ + return platform_register_drivers(mtk_vdec_drivers, + ARRAY_SIZE(mtk_vdec_drivers)); +} + +static void __exit mtk_vdec_exit(void) +{ + platform_unregister_drivers(mtk_vdec_drivers, + ARRAY_SIZE(mtk_vdec_drivers)); +} + +module_init(mtk_vdec_init); +module_exit(mtk_vdec_exit); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("Mediatek video codec V4L2 decoder driver"); diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c new file mode 100644 index 000000000000..5e1b7670ba5b --- /dev/null +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c @@ -0,0 +1,184 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2021 MediaTek Inc. + * Author: Yunfei Dong + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "mtk_vcodec_drv.h" +#include "mtk_vcodec_dec.h" +#include "mtk_vcodec_dec_hw.h" +#include "mtk_vcodec_dec_pm.h" +#include "mtk_vcodec_intr.h" +#include "mtk_vcodec_util.h" + +static int mtk_vdec_comp_bind(struct device *dev, struct device *master, + void *data) +{ + struct mtk_vdec_comp_dev *comp_dev = dev_get_drvdata(dev); + struct mtk_vcodec_dev *master_dev = data; + int i; + + for (i = 0; i < MTK_VDEC_HW_MAX; i++) { + if (dev->of_node != master_dev->component_node[i]) + continue; + + master_dev->comp_dev[i] = comp_dev; + comp_dev->comp_idx = i; + comp_dev->master_dev = master_dev; + break; + } + + if (i == MTK_VDEC_HW_MAX) { + dev_err(dev, "Failed to get component node\n"); + return -EINVAL; + } + + comp_dev->reg_base[VDEC_COMP_SYS] = + master_dev->reg_base[VDEC_COMP_SYS]; + return 0; +} + +static void mtk_vdec_comp_unbind(struct device *dev, struct device *master, + void *data) +{ + struct mtk_vdec_comp_dev *comp_dev = dev_get_drvdata(dev); + + comp_dev->reg_base[VDEC_COMP_SYS] = NULL; +} + +static const struct component_ops mtk_vdec_hw_component_ops = { + .bind = mtk_vdec_comp_bind, + .unbind = mtk_vdec_comp_unbind, +}; + +static irqreturn_t mtk_vdec_comp_irq_handler(int irq, void *priv) +{ + struct mtk_vdec_comp_dev *dev = priv; + struct mtk_vcodec_ctx *ctx; + u32 cg_status; + unsigned int dec_done_status; + void __iomem *vdec_misc_addr = dev->reg_base[VDEC_COMP_MISC] + + VDEC_IRQ_CFG_REG; + + ctx = mtk_vcodec_get_curr_ctx(dev->master_dev); + + /* check if HW active or not */ + cg_status = readl(dev->reg_base[VDEC_COMP_SYS]); + if ((cg_status & VDEC_HW_ACTIVE) != 0) { + mtk_v4l2_err("vdec active is not 0x0 (0x%08x)", + cg_status); + return IRQ_HANDLED; + } + + dec_done_status = readl(vdec_misc_addr); + if ((dec_done_status & MTK_VDEC_IRQ_STATUS_DEC_SUCCESS) != + MTK_VDEC_IRQ_STATUS_DEC_SUCCESS) + return IRQ_HANDLED; + + /* clear interrupt */ + writel(dec_done_status | VDEC_IRQ_CFG, vdec_misc_addr); + writel(dec_done_status & ~VDEC_IRQ_CLR, vdec_misc_addr); + + wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED); + + mtk_v4l2_debug(3, "wake up ctx %d, dec_done_status=%x", + ctx->id, dec_done_status); + + return IRQ_HANDLED; +} + +static int mtk_vdec_comp_init_irq(struct mtk_vdec_comp_dev *dev) +{ + struct platform_device *pdev = dev->plat_dev; + int ret; + + dev->dec_irq = platform_get_irq(pdev, 0); + if (dev->dec_irq < 0) { + dev_err(&pdev->dev, "Failed to get irq resource"); + return dev->dec_irq; + } + + irq_set_status_flags(dev->dec_irq, IRQ_NOAUTOEN); + ret = devm_request_irq(&pdev->dev, dev->dec_irq, + mtk_vdec_comp_irq_handler, 0, pdev->name, dev); + if (ret) { + dev_err(&pdev->dev, "Failed to install dev->dec_irq %d (%d)", + dev->dec_irq, ret); + return ret; + } + + return 0; +} + +static int mtk_vdec_comp_probe(struct platform_device *pdev) +{ + struct mtk_vdec_comp_dev *dev; + int ret; + + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + dev->plat_dev = pdev; + ret = mtk_vcodec_init_dec_pm(pdev, &dev->pm); + if (ret) { + dev_err(&pdev->dev, "Failed to get mt vcodec clock source"); + return ret; + } + + dev->reg_base[VDEC_COMP_MISC] = + devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR((__force void *)dev->reg_base[VDEC_COMP_MISC])) { + ret = PTR_ERR((__force void *)dev->reg_base[VDEC_COMP_MISC]); + goto err; + } + + if (of_get_property(pdev->dev.of_node, "dma-ranges", NULL)) + dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(34)); + + ret = mtk_vdec_comp_init_irq(dev); + if (ret) { + dev_err(&pdev->dev, "Failed to register irq handler.\n"); + goto err; + } + + platform_set_drvdata(pdev, dev); + + ret = component_add(&pdev->dev, &mtk_vdec_hw_component_ops); + if (ret) { + dev_err(&pdev->dev, "Failed to add component: %d\n", ret); + goto err; + } + + return 0; +err: + mtk_vcodec_release_dec_pm(&dev->pm); + return ret; +} + +static const struct of_device_id mtk_vdec_comp_ids[] = { + { + .compatible = "mediatek,mtk-vcodec-lat", + }, + { + .compatible = "mediatek,mtk-vcodec-core", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, mtk_vdec_comp_ids); + +struct platform_driver mtk_vdec_comp_driver = { + .probe = mtk_vdec_comp_probe, + .driver = { + .name = "mtk-vdec-comp", + .of_match_table = mtk_vdec_comp_ids, + }, +}; diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h new file mode 100644 index 000000000000..60c97dff0959 --- /dev/null +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2021 MediaTek Inc. + * Author: Yunfei Dong + */ + +#ifndef _MTK_VCODEC_DEC_HW_H_ +#define _MTK_VCODEC_DEC_HW_H_ + +#include +#include + +#include "mtk_vcodec_drv.h" + +/** + * enum mtk_comp_hw_reg_idx - component register base index + */ +enum mtk_comp_hw_reg_idx { + VDEC_COMP_SYS, + VDEC_COMP_MISC, + VDEC_COMP_MAX +}; + +/** + * struct mtk_vdec_comp_dev - component framwork driver data + * @plat_dev: platform device + * @master_dev: master device + * @reg_base: Mapped address of MTK Vcodec registers. + * + * @dec_irq: decoder irq resource + * @pm: power management control + * @comp_idx: component index + */ +struct mtk_vdec_comp_dev { + struct platform_device *plat_dev; + struct mtk_vcodec_dev *master_dev; + void __iomem *reg_base[VDEC_COMP_MAX]; + + int dec_irq; + struct mtk_vcodec_pm pm; + int comp_idx; +}; + +#endif /* _MTK_VCODEC_DEC_HW_H_ */ diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h index 973b0b3649c6..d6bb723db106 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h @@ -17,6 +17,11 @@ #include #include "mtk_vcodec_util.h" +#define VDEC_HW_ACTIVE 0x10 +#define VDEC_IRQ_CFG 0x11 +#define VDEC_IRQ_CLR 0x10 +#define VDEC_IRQ_CFG_REG 0xa4 + #define MTK_VCODEC_DRV_NAME "mtk_vcodec_drv" #define MTK_VCODEC_DEC_NAME "mtk-vcodec-dec" #define MTK_VCODEC_ENC_NAME "mtk-vcodec-enc" @@ -93,6 +98,17 @@ enum mtk_fmt_type { MTK_FMT_FRAME = 2, }; +/** + * struct mtk_vdec_hw_id - Hardware index used to separate + * different hardware + */ +enum mtk_vdec_hw_id { + MTK_VDEC_CORE, + MTK_VDEC_LAT0, + MTK_VDEC_LAT1, + MTK_VDEC_HW_MAX, + }; + /* * struct mtk_video_fmt - Structure used to store information about pixelformats */ @@ -404,6 +420,7 @@ struct mtk_vcodec_enc_pdata { * * @fw_handler: used to communicate with the firmware. * @id_counter: used to identify current opened instance + * @is_comp_supported: true: using compoent framework, false: not support * * @decode_workqueue: decode work queue * @encode_workqueue: encode work queue @@ -422,6 +439,9 @@ struct mtk_vcodec_enc_pdata { * @pm: power management control * @dec_capability: used to identify decode capability, ex: 4k * @enc_capability: used to identify encode capability + * + * @comp_dev: component hardware device + * @component_node: component node */ struct mtk_vcodec_dev { struct v4l2_device v4l2_dev; @@ -442,6 +462,7 @@ struct mtk_vcodec_dev { struct mtk_vcodec_fw *fw_handler; unsigned long id_counter; + bool is_comp_supported; struct workqueue_struct *decode_workqueue; struct workqueue_struct *encode_workqueue; @@ -459,6 +480,9 @@ struct mtk_vcodec_dev { struct mtk_vcodec_pm pm; unsigned int dec_capability; unsigned int enc_capability; + + void *comp_dev[MTK_VDEC_HW_MAX]; + struct device_node *component_node[MTK_VDEC_HW_MAX]; }; static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh)