[media] vcodec: mediatek: Add Mediatek V4L2 Video Decoder Driver

obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-enc.o mtk-vcodec-common.o

obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-dec.o \

				       mtk-vcodec-enc.o \

				       mtk-vcodec-common.o

mtk-vcodec-dec-y := mtk_vcodec_dec_drv.o \

		vdec_drv_if.o \

		vdec_vpu_if.o \

		mtk_vcodec_dec.o \

		mtk_vcodec_dec_pm.o \

mtk-vcodec-enc-y := venc/venc_vp8_if.o \

/*

 * Copyright (c) 2016 MediaTek Inc.

 * Author: PC Chen <pc.chen@mediatek.com>

 *         Tiffany Lin <tiffany.lin@mediatek.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

#ifndef _MTK_VCODEC_DEC_H_

#define _MTK_VCODEC_DEC_H_

#include <media/videobuf2-core.h>

#include <media/videobuf2-v4l2.h>

#define VCODEC_CAPABILITY_4K_DISABLED	0x10

#define VCODEC_DEC_4K_CODED_WIDTH	4096U

#define VCODEC_DEC_4K_CODED_HEIGHT	2304U

#define MTK_VDEC_MAX_W	2048U

#define MTK_VDEC_MAX_H	1088U

#define MTK_VDEC_IRQ_STATUS_DEC_SUCCESS        0x10000

/**

 * struct vdec_fb  - decoder frame buffer

 * @base_y	: Y plane memory info

 * @base_c	: C plane memory info

 * @status      : frame buffer status (vdec_fb_status)

 */

struct vdec_fb {

	struct mtk_vcodec_mem	base_y;

	struct mtk_vcodec_mem	base_c;

	unsigned int	status;

};

/**

 * struct mtk_video_dec_buf - Private data related to each VB2 buffer.

 * @b:		VB2 buffer

 * @list:	link list

 * @used:	Capture buffer contain decoded frame data and keep in

 *			codec data structure

 * @ready_to_display:	Capture buffer not display yet

 * @queued_in_vb2:	Capture buffer is queue in vb2

 * @queued_in_v4l2:	Capture buffer is in v4l2 driver, but not in vb2

 *			queue yet

 * @lastframe:		Intput buffer is last buffer - EOS

 * @frame_buffer:	Decode status, and buffer information of Capture buffer

 *

 * Note : These status information help us track and debug buffer state

 */

struct mtk_video_dec_buf {

	struct vb2_v4l2_buffer	vb;

	struct list_head	list;

	bool	used;

	bool	ready_to_display;

	bool	queued_in_vb2;

	bool	queued_in_v4l2;

	bool	lastframe;

	struct vdec_fb	frame_buffer;

};

extern const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops;

extern const struct v4l2_m2m_ops mtk_vdec_m2m_ops;

/*

 * mtk_vdec_lock/mtk_vdec_unlock are for ctx instance to

 * get/release lock before/after access decoder hw.

 * mtk_vdec_lock get decoder hw lock and set curr_ctx

 * to ctx instance that get lock

 */

void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx);

void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx);

int mtk_vcodec_dec_queue_init(void *priv, struct vb2_queue *src_vq,

			   struct vb2_queue *dst_vq);

void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx *ctx);

void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx);

int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_ctx *ctx);

#endif /* _MTK_VCODEC_DEC_H_ */

/*

 * Copyright (c) 2016 MediaTek Inc.

 * Author: PC Chen <pc.chen@mediatek.com>

 *         Tiffany Lin <tiffany.lin@mediatek.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

#include <linux/slab.h>

#include <linux/interrupt.h>

#include <linux/irq.h>

#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/of.h>

#include <media/v4l2-event.h>

#include <media/v4l2-mem2mem.h>

#include <media/videobuf2-dma-contig.h>

#include "mtk_vcodec_drv.h"

#include "mtk_vcodec_dec.h"

#include "mtk_vcodec_dec_pm.h"

#include "mtk_vcodec_intr.h"

#include "mtk_vcodec_util.h"

#include "mtk_vpu.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);

/* Wake up context wait_queue */

static void wake_up_ctx(struct mtk_vcodec_ctx *ctx)

{

	ctx->int_cond = 1;

	wake_up_interruptible(&ctx->queue);

}

static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)

{

	struct mtk_vcodec_dev *dev = priv;

	struct mtk_vcodec_ctx *ctx;

	u32 cg_status = 0;

	unsigned int dec_done_status = 0;

	void __iomem *vdec_misc_addr = dev->reg_base[VDEC_MISC] +

					VDEC_IRQ_CFG_REG;

	ctx = mtk_vcodec_get_curr_ctx(dev);

	/* check if HW active or not */

	cg_status = readl(dev->reg_base[0]);

	if ((cg_status & VDEC_HW_ACTIVE) != 0) {

		mtk_v4l2_err("DEC ISR, VDEC active is not 0x0 (0x%08x)",

			     cg_status);

		return IRQ_HANDLED;

	}

	dec_done_status = readl(vdec_misc_addr);

	ctx->irq_status = dec_done_status;

	if ((dec_done_status & MTK_VDEC_IRQ_STATUS_DEC_SUCCESS) !=

		MTK_VDEC_IRQ_STATUS_DEC_SUCCESS)

		return IRQ_HANDLED;

	/* clear interrupt */

	writel((readl(vdec_misc_addr) | VDEC_IRQ_CFG),

		dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);

	writel((readl(vdec_misc_addr) & ~VDEC_IRQ_CLR),

		dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);

	wake_up_ctx(ctx);

	mtk_v4l2_debug(3,

			"mtk_vcodec_dec_irq_handler :wake up ctx %d, dec_done_status=%x",

			ctx->id, dec_done_status);

	return IRQ_HANDLED;

}

static void mtk_vcodec_dec_reset_handler(void *priv)

{

	struct mtk_vcodec_dev *dev = priv;

	struct mtk_vcodec_ctx *ctx;

	mtk_v4l2_err("Watchdog timeout!!");

	mutex_lock(&dev->dev_mutex);

	list_for_each_entry(ctx, &dev->ctx_list, list) {

		ctx->state = MTK_STATE_ABORT;

		mtk_v4l2_debug(0, "[%d] Change to state MTK_STATE_ERROR",

				ctx->id);

	}

	mutex_unlock(&dev->dev_mutex);

}

static int fops_vcodec_open(struct file *file)

{

	struct mtk_vcodec_dev *dev = video_drvdata(file);

	struct mtk_vcodec_ctx *ctx = NULL;

	int ret = 0;

	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);

	if (!ctx)

		return -ENOMEM;

	mutex_lock(&dev->dev_mutex);

	ctx->id = dev->id_counter++;

	v4l2_fh_init(&ctx->fh, video_devdata(file));

	file->private_data = &ctx->fh;

	v4l2_fh_add(&ctx->fh);

	INIT_LIST_HEAD(&ctx->list);

	ctx->dev = dev;

	init_waitqueue_head(&ctx->queue);

	mutex_init(&ctx->lock);

	ctx->type = MTK_INST_DECODER;

	ret = mtk_vcodec_dec_ctrls_setup(ctx);

	if (ret) {

		mtk_v4l2_err("Failed to setup mt vcodec controls");

		goto err_ctrls_setup;

	}

	ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev_dec, ctx,

		&mtk_vcodec_dec_queue_init);

	if (IS_ERR((__force void *)ctx->m2m_ctx)) {

		ret = PTR_ERR((__force void *)ctx->m2m_ctx);

		mtk_v4l2_err("Failed to v4l2_m2m_ctx_init() (%d)",

			ret);

		goto err_m2m_ctx_init;

	}

	mtk_vcodec_dec_set_default_params(ctx);

	if (v4l2_fh_is_singular(&ctx->fh)) {

		mtk_vcodec_dec_pw_on(&dev->pm);

		/*

		 * vpu_load_firmware checks if it was loaded already and

		 * does nothing in that case

		 */

		ret = vpu_load_firmware(dev->vpu_plat_dev);

		if (ret < 0) {

			/*

			 * Return 0 if downloading firmware successfully,

			 * otherwise it is failed

			 */

			mtk_v4l2_err("vpu_load_firmware failed!");

			goto err_load_fw;

		}

		dev->dec_capability =

			vpu_get_vdec_hw_capa(dev->vpu_plat_dev);

		mtk_v4l2_debug(0, "decoder capability %x", dev->dec_capability);

	}

	list_add(&ctx->list, &dev->ctx_list);

	mutex_unlock(&dev->dev_mutex);

	mtk_v4l2_debug(0, "%s decoder [%d]", dev_name(&dev->plat_dev->dev),

			ctx->id);

	return ret;

	/* Deinit when failure occurred */

err_load_fw:

	v4l2_m2m_ctx_release(ctx->m2m_ctx);

err_m2m_ctx_init:

	v4l2_ctrl_handler_free(&ctx->ctrl_hdl);

err_ctrls_setup:

	v4l2_fh_del(&ctx->fh);

	v4l2_fh_exit(&ctx->fh);

	kfree(ctx);

	mutex_unlock(&dev->dev_mutex);

	return ret;

}

static int fops_vcodec_release(struct file *file)

{

	struct mtk_vcodec_dev *dev = video_drvdata(file);

	struct mtk_vcodec_ctx *ctx = fh_to_ctx(file->private_data);

	mtk_v4l2_debug(0, "[%d] decoder", ctx->id);

	mutex_lock(&dev->dev_mutex);

	/*

	 * Call v4l2_m2m_ctx_release before mtk_vcodec_dec_release. First, it

	 * makes sure the worker thread is not running after vdec_if_deinit.

	 * Second, the decoder will be flushed and all the buffers will be

	 * returned in stop_streaming.

	 */

	v4l2_m2m_ctx_release(ctx->m2m_ctx);

	mtk_vcodec_dec_release(ctx);

	if (v4l2_fh_is_singular(&ctx->fh))

		mtk_vcodec_dec_pw_off(&dev->pm);

	v4l2_fh_del(&ctx->fh);

	v4l2_fh_exit(&ctx->fh);

	v4l2_ctrl_handler_free(&ctx->ctrl_hdl);

	list_del_init(&ctx->list);

	kfree(ctx);

	mutex_unlock(&dev->dev_mutex);

	return 0;

}

static const struct v4l2_file_operations mtk_vcodec_fops = {

	.owner		= THIS_MODULE,

	.open		= fops_vcodec_open,

	.release	= fops_vcodec_release,

	.poll		= v4l2_m2m_fop_poll,

	.unlocked_ioctl	= video_ioctl2,

	.mmap		= v4l2_m2m_fop_mmap,

};

static int mtk_vcodec_probe(struct platform_device *pdev)

{

	struct mtk_vcodec_dev *dev;

	struct video_device *vfd_dec;

	struct resource *res;

	int i, ret;

	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);

	if (!dev)

		return -ENOMEM;

	INIT_LIST_HEAD(&dev->ctx_list);

	dev->plat_dev = pdev;

	dev->vpu_plat_dev = vpu_get_plat_device(dev->plat_dev);

	if (dev->vpu_plat_dev == NULL) {

		mtk_v4l2_err("[VPU] vpu device in not ready");

		return -EPROBE_DEFER;

	}

	vpu_wdt_reg_handler(dev->vpu_plat_dev, mtk_vcodec_dec_reset_handler,

			dev, VPU_RST_DEC);

	ret = mtk_vcodec_init_dec_pm(dev);

	if (ret < 0) {

		dev_err(&pdev->dev, "Failed to get mt vcodec clock source");

		return ret;

	}

	for (i = 0; i < NUM_MAX_VDEC_REG_BASE; i++) {

		res = platform_get_resource(pdev, IORESOURCE_MEM, i);

		if (res == NULL) {

			dev_err(&pdev->dev, "get memory resource failed.");

			ret = -ENXIO;

			goto err_res;

		}

		dev->reg_base[i] = devm_ioremap_resource(&pdev->dev, res);

		if (IS_ERR((__force void *)dev->reg_base[i])) {

			ret = PTR_ERR((__force void *)dev->reg_base);

			goto err_res;

		}

		mtk_v4l2_debug(2, "reg[%d] base=%p", i, dev->reg_base[i]);

	}

	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);

	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);

		goto err_res;

	}

	disable_irq(dev->dec_irq);

	mutex_init(&dev->dec_mutex);

	mutex_init(&dev->dev_mutex);

	spin_lock_init(&dev->irqlock);

	snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s",

		"[/MTK_V4L2_VDEC]");

	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);

	if (ret) {

		mtk_v4l2_err("v4l2_device_register err=%d", ret);

		goto err_res;

	}

	init_waitqueue_head(&dev->queue);

	vfd_dec = video_device_alloc();

	if (!vfd_dec) {

		mtk_v4l2_err("Failed to allocate video device");

		ret = -ENOMEM;

		goto err_dec_alloc;

	}

	vfd_dec->fops		= &mtk_vcodec_fops;

	vfd_dec->ioctl_ops	= &mtk_vdec_ioctl_ops;

	vfd_dec->release	= video_device_release;

	vfd_dec->lock		= &dev->dev_mutex;

	vfd_dec->v4l2_dev	= &dev->v4l2_dev;

	vfd_dec->vfl_dir	= VFL_DIR_M2M;

	vfd_dec->device_caps	= V4L2_CAP_VIDEO_M2M_MPLANE |

			V4L2_CAP_STREAMING;

	snprintf(vfd_dec->name, sizeof(vfd_dec->name), "%s",

		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)) {

		mtk_v4l2_err("Failed to init mem2mem dec device");

		ret = PTR_ERR((__force void *)dev->m2m_dev_dec);

		goto err_dec_mem_init;

	}

	dev->decode_workqueue =

		alloc_ordered_workqueue(MTK_VCODEC_DEC_NAME,

			WQ_MEM_RECLAIM | WQ_FREEZABLE);

	if (!dev->decode_workqueue) {

		mtk_v4l2_err("Failed to create decode workqueue");

		ret = -EINVAL;

		goto err_event_workq;

	}

	ret = video_register_device(vfd_dec, VFL_TYPE_GRABBER, 0);

	if (ret) {

		mtk_v4l2_err("Failed to register video device");

		goto err_dec_reg;

	}

	mtk_v4l2_debug(0, "decoder registered as /dev/video%d",

		vfd_dec->num);

	return 0;

err_dec_reg:

	destroy_workqueue(dev->decode_workqueue);

err_event_workq:

	v4l2_m2m_release(dev->m2m_dev_dec);

err_dec_mem_init:

	video_unregister_device(vfd_dec);

err_dec_alloc:

	v4l2_device_unregister(&dev->v4l2_dev);

err_res:

	mtk_vcodec_release_dec_pm(dev);

	return ret;

}

static const struct of_device_id mtk_vcodec_match[] = {

	{.compatible = "mediatek,mt8173-vcodec-dec",},

	{},

};

MODULE_DEVICE_TABLE(of, mtk_vcodec_match);

static int mtk_vcodec_dec_remove(struct platform_device *pdev)

{

	struct mtk_vcodec_dev *dev = platform_get_drvdata(pdev);

	flush_workqueue(dev->decode_workqueue);

	destroy_workqueue(dev->decode_workqueue);

	if (dev->m2m_dev_dec)

		v4l2_m2m_release(dev->m2m_dev_dec);

	if (dev->vfd_dec)

		video_unregister_device(dev->vfd_dec);

	v4l2_device_unregister(&dev->v4l2_dev);

	mtk_vcodec_release_dec_pm(dev);

	return 0;

}

static struct platform_driver mtk_vcodec_dec_driver = {

	.probe	= mtk_vcodec_probe,

	.remove	= mtk_vcodec_dec_remove,

	.driver	= {

		.name	= MTK_VCODEC_DEC_NAME,

		.of_match_table = mtk_vcodec_match,

	},

};

module_platform_driver(mtk_vcodec_dec_driver);

MODULE_LICENSE("GPL v2");

MODULE_DESCRIPTION("Mediatek video codec V4L2 decoder driver");

/*

 * Copyright (c) 2016 MediaTek Inc.

 * Author: Tiffany Lin <tiffany.lin@mediatek.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

#include <linux/clk.h>

#include <linux/of_address.h>

#include <linux/of_platform.h>

#include <linux/pm_runtime.h>

#include <soc/mediatek/smi.h>

#include "mtk_vcodec_dec_pm.h"

#include "mtk_vcodec_util.h"

#include "mtk_vpu.h"

int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev)

{

	struct device_node *node;

	struct platform_device *pdev;

	struct device *dev;

	struct mtk_vcodec_pm *pm;

	int ret = 0;

	pdev = mtkdev->plat_dev;

	pm = &mtkdev->pm;

	pm->mtkdev = mtkdev;

	dev = &pdev->dev;

	node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0);

	if (!node) {

		mtk_v4l2_err("of_parse_phandle mediatek,larb fail!");

		return -1;

	}

	pdev = of_find_device_by_node(node);

	if (WARN_ON(!pdev)) {

		of_node_put(node);

		return -1;

	}

	pm->larbvdec = &pdev->dev;

	pdev = mtkdev->plat_dev;

	pm->dev = &pdev->dev;

	pm->vcodecpll = devm_clk_get(&pdev->dev, "vcodecpll");

	if (IS_ERR(pm->vcodecpll)) {

		mtk_v4l2_err("devm_clk_get vcodecpll fail");

		ret = PTR_ERR(pm->vcodecpll);

	}

	pm->univpll_d2 = devm_clk_get(&pdev->dev, "univpll_d2");

	if (IS_ERR(pm->univpll_d2)) {

		mtk_v4l2_err("devm_clk_get univpll_d2 fail");

		ret = PTR_ERR(pm->univpll_d2);

	}

	pm->clk_cci400_sel = devm_clk_get(&pdev->dev, "clk_cci400_sel");

	if (IS_ERR(pm->clk_cci400_sel)) {

		mtk_v4l2_err("devm_clk_get clk_cci400_sel fail");

		ret = PTR_ERR(pm->clk_cci400_sel);

	}

	pm->vdec_sel = devm_clk_get(&pdev->dev, "vdec_sel");

	if (IS_ERR(pm->vdec_sel)) {

		mtk_v4l2_err("devm_clk_get vdec_sel fail");

		ret = PTR_ERR(pm->vdec_sel);

	}

	pm->vdecpll = devm_clk_get(&pdev->dev, "vdecpll");

	if (IS_ERR(pm->vdecpll)) {

		mtk_v4l2_err("devm_clk_get vdecpll fail");

		ret = PTR_ERR(pm->vdecpll);

	}

	pm->vencpll = devm_clk_get(&pdev->dev, "vencpll");

	if (IS_ERR(pm->vencpll)) {

		mtk_v4l2_err("devm_clk_get vencpll fail");

		ret = PTR_ERR(pm->vencpll);

	}

	pm->venc_lt_sel = devm_clk_get(&pdev->dev, "venc_lt_sel");

	if (IS_ERR(pm->venc_lt_sel)) {

		mtk_v4l2_err("devm_clk_get venc_lt_sel fail");

		ret = PTR_ERR(pm->venc_lt_sel);

	}

	pm->vdec_bus_clk_src = devm_clk_get(&pdev->dev, "vdec_bus_clk_src");

	if (IS_ERR(pm->vdec_bus_clk_src)) {

		mtk_v4l2_err("devm_clk_get vdec_bus_clk_src");

		ret = PTR_ERR(pm->vdec_bus_clk_src);

	}

	pm_runtime_enable(&pdev->dev);

	return ret;

}

void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev)

{

	pm_runtime_disable(dev->pm.dev);

}

void mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)

{

	int ret;

	ret = pm_runtime_get_sync(pm->dev);

	if (ret)

		mtk_v4l2_err("pm_runtime_get_sync fail %d", ret);

}

void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm)

{

	int ret;

	ret = pm_runtime_put_sync(pm->dev);

	if (ret)

		mtk_v4l2_err("pm_runtime_put_sync fail %d", ret);

}

void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm)

{

	int ret;

	ret = clk_set_rate(pm->vcodecpll, 1482 * 1000000);

	if (ret)

		mtk_v4l2_err("clk_set_rate vcodecpll fail %d", ret);

	ret = clk_set_rate(pm->vencpll, 800 * 1000000);

	if (ret)

		mtk_v4l2_err("clk_set_rate vencpll fail %d", ret);

	ret = clk_prepare_enable(pm->vcodecpll);

	if (ret)

		mtk_v4l2_err("clk_prepare_enable vcodecpll fail %d", ret);

	ret = clk_prepare_enable(pm->vencpll);

	if (ret)

		mtk_v4l2_err("clk_prepare_enable vencpll fail %d", ret);

	ret = clk_prepare_enable(pm->vdec_bus_clk_src);

	if (ret)

		mtk_v4l2_err("clk_prepare_enable vdec_bus_clk_src fail %d",

				ret);

	ret = clk_prepare_enable(pm->venc_lt_sel);

	if (ret)

		mtk_v4l2_err("clk_prepare_enable venc_lt_sel fail %d", ret);

	ret = clk_set_parent(pm->venc_lt_sel, pm->vdec_bus_clk_src);

	if (ret)

		mtk_v4l2_err("clk_set_parent venc_lt_sel vdec_bus_clk_src fail %d",

				ret);

	ret = clk_prepare_enable(pm->univpll_d2);

	if (ret)

		mtk_v4l2_err("clk_prepare_enable univpll_d2 fail %d", ret);

	ret = clk_prepare_enable(pm->clk_cci400_sel);

	if (ret)

		mtk_v4l2_err("clk_prepare_enable clk_cci400_sel fail %d", ret);

	ret = clk_set_parent(pm->clk_cci400_sel, pm->univpll_d2);

	if (ret)

		mtk_v4l2_err("clk_set_parent clk_cci400_sel univpll_d2 fail %d",

				ret);

	ret = clk_prepare_enable(pm->vdecpll);

	if (ret)

		mtk_v4l2_err("clk_prepare_enable vdecpll fail %d", ret);

	ret = clk_prepare_enable(pm->vdec_sel);

	if (ret)

		mtk_v4l2_err("clk_prepare_enable vdec_sel fail %d", ret);

	ret = clk_set_parent(pm->vdec_sel, pm->vdecpll);

	if (ret)

		mtk_v4l2_err("clk_set_parent vdec_sel vdecpll fail %d", ret);

	ret = mtk_smi_larb_get(pm->larbvdec);

	if (ret)

		mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret);

}

void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm)

{

	mtk_smi_larb_put(pm->larbvdec);

	clk_disable_unprepare(pm->vdec_sel);

	clk_disable_unprepare(pm->vdecpll);

	clk_disable_unprepare(pm->univpll_d2);

	clk_disable_unprepare(pm->clk_cci400_sel);

	clk_disable_unprepare(pm->venc_lt_sel);

	clk_disable_unprepare(pm->vdec_bus_clk_src);

	clk_disable_unprepare(pm->vencpll);

	clk_disable_unprepare(pm->vcodecpll);

}