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 <yunfei.d...@mediatek.com>
---
 drivers/media/platform/mtk-vcodec/Makefile    |   1 +
 .../platform/mtk-vcodec/mtk_vcodec_dec.h      |   1 +
 .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  | 194 +++++++++++++++---
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c   | 184 +++++++++++++++++
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.h   |  49 +++++
 .../mtk-vcodec/mtk_vcodec_dec_stateful.c      |   1 +
 .../mtk-vcodec/mtk_vcodec_dec_stateless.c     |   1 +
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  19 ++
 8 files changed, 416 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 dd749d41c75a..4c6f4d7612fa 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 <tiffany....@mediatek.com>
  */
 
+#include <linux/component.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
@@ -18,19 +19,90 @@
 
 #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"
 #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;
+       struct device_node *comp_node;
+       enum mtk_vdec_hw_id comp_idx;
+       const struct of_device_id *of_id;
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(mtk_vdec_drv_ids); i++) {
+               of_id = &mtk_vdec_drv_ids[i];
+               comp_node = of_find_compatible_node(NULL, NULL,
+                       of_id->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;
+               }
+
+               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);
+       }
+
+       return match;
+}
+
 static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
 {
        struct mtk_vcodec_dev *dev = priv;
@@ -95,6 +167,58 @@ static int mtk_vcodec_get_reg_bases(struct mtk_vcodec_dev 
*dev)
        return 0;
 }
 
+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;
+
+       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->vdec_pdata->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 0;
+}
+
 static int fops_vcodec_open(struct file *file)
 {
        struct mtk_vcodec_dev *dev = video_drvdata(file);
@@ -220,7 +344,6 @@ 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;
        int ret;
@@ -249,32 +372,10 @@ 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;
-       }
-
-       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);
-               goto err_res;
+               dev_err(&pdev->dev, "Failed to init pm and registers");
+               goto err_dec_pm;
        }
 
        mutex_init(&dev->dec_mutex);
@@ -362,8 +463,14 @@ 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->vdec_pdata->is_comp_supported) {
+               ret = mtk_vcodec_init_master(dev);
+               if (ret < 0)
+                       goto err_component_match;
+       }
 
+       return 0;
+err_component_match:
 err_dec_reg:
        if (dev->vdec_pdata->uses_stateless_api)
                media_device_unregister(&dev->mdev_dec);
@@ -382,6 +489,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
        mtk_vcodec_release_dec_pm(&dev->pm);
 err_dec_pm:
        mtk_vcodec_fw_release(dev->fw_handler);
+
        return ret;
 }
 
@@ -436,7 +544,25 @@ 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 <yunfei.d...@mediatek.com>
+ */
+
+#include <linux/component.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+
+#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..8d6e818a3474
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Author: Yunfei Dong <yunfei.d...@mediatek.com>
+ */
+
+#ifndef _MTK_VCODEC_DEC_HW_H_
+#define _MTK_VCODEC_DEC_HW_H_
+
+#include <linux/io.h>
+#include <linux/platform_device.h>
+
+#include "mtk_vcodec_drv.h"
+
+#define VDEC_HW_ACTIVE 0x10
+#define VDEC_IRQ_CFG   0x11
+#define VDEC_IRQ_CLR   0x10
+#define VDEC_IRQ_CFG_REG       0xa4
+
+/**
+ * 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_dec_stateful.c 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c
index 59c24b22ab6d..4f9a80ce15d8 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c
@@ -623,4 +623,5 @@ const struct mtk_vcodec_dec_pdata mtk_vdec_8173_pdata = {
        .num_framesizes = NUM_SUPPORTED_FRAMESIZE,
        .worker = mtk_vdec_worker,
        .flush_decoder = mtk_vdec_flush_decoder,
+       .is_comp_supported = false,
 };
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
index 8f4a1f0a0769..762633572b49 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
@@ -357,4 +357,5 @@ const struct mtk_vcodec_dec_pdata mtk_vdec_8183_pdata = {
        .uses_stateless_api = true,
        .worker = mtk_vdec_worker,
        .flush_decoder = mtk_vdec_flush_decoder,
+       .is_comp_supported = false,
 };
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index 973b0b3649c6..e530757a9b5a 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -93,6 +93,17 @@ 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
  */
@@ -331,6 +342,7 @@ enum mtk_chip {
  *
  * @chip: chip this decoder is compatible with
  *
+ * @is_comp_supported: true: using compoent framework, false: not support
  * @uses_stateless_api: whether the decoder uses the stateless API with 
requests
  */
 
@@ -352,6 +364,7 @@ struct mtk_vcodec_dec_pdata {
 
        enum mtk_chip chip;
 
+       bool is_comp_supported;
        bool uses_stateless_api;
 };
 
@@ -422,6 +435,9 @@ 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;
@@ -459,6 +475,9 @@ 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)
-- 
2.25.1

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