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* [PATCH v6 0/3] Add Mediatek JPEG Decoder
@ 2016-11-17  3:38 Rick Chang
  2016-11-17  3:38 ` [PATCH v6 1/3] dt-bindings: mediatek: Add a binding for " Rick Chang
                   ` (3 more replies)
  0 siblings, 4 replies; 19+ messages in thread
From: Rick Chang @ 2016-11-17  3:38 UTC (permalink / raw)
  To: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring
  Cc: linux-kernel, linux-media, srv_heupstream, linux-mediatek,
	linux-arm-kernel, devicetree, Minghsiu Tsai, Rick Chang

This series of patches provide a v4l2 driver to control Mediatek JPEG decoder
for decoding JPEG image and Motion JPEG bitstream.

changes since v5:
- remove redundant name from struct mtk_jpeg_fmt
- Set state of all buffers to VB2_BUF_STATE_QUEUED if fail in start streaming
- Remove VB2_USERPTR
- Add check for buffer index

changes since v4:
- Change file name of binding documentation
- Revise DT binding documentation
- Revise compatible string

changes since v3:
- Revise DT binding documentation
- Revise compatible string

changes since v2:
- Revise DT binding documentation 

changes since v1:
- Rebase for v4.9-rc1.
- Update Compliance test version and result
- Remove redundant path in Makefile
- Fix potential build error without CONFIG_PM_RUNTIME and CONFIG_PM_SLEEP
- Fix warnings from patch check and smatch check

* Dependency
The patch "arm: dts: mt2701: Add node for JPEG decoder" depends on: 
  CCF "Add clock support for Mediatek MT2701"[1]
  iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]

[1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
[2] https://patchwork.kernel.org/patch/9164013/

* Compliance test
v4l2-compliance SHA   : 4ad7174b908a36c4f315e3fe2efa7e2f8a6f375a

Driver Info:
        Driver name   : mtk-jpeg decode
        Card type     : mtk-jpeg decoder
        Bus info      : platform:15004000.jpegdec
        Driver version: 4.9.0
        Capabilities  : 0x84204000
                Video Memory-to-Memory Multiplanar
                Streaming
                Extended Pix Format
                Device Capabilities
        Device Caps   : 0x04204000
                Video Memory-to-Memory Multiplanar
                Streaming
                Extended Pix Format

Compliance test for device /dev/video3 (not using libv4l2):

Required ioctls:
        test VIDIOC_QUERYCAP: OK

Allow for multiple opens:
        test second video open: OK
        test VIDIOC_QUERYCAP: OK
        test VIDIOC_G/S_PRIORITY: OK
        test for unlimited opens: OK

Debug ioctls:
        test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
        test VIDIOC_LOG_STATUS: OK (Not Supported)

Input ioctls:
        test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
        test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
        test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
        test VIDIOC_ENUMAUDIO: OK (Not Supported)
        test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
        test VIDIOC_G/S_AUDIO: OK (Not Supported)
        Inputs: 0 Audio Inputs: 0 Tuners: 0

Output ioctls:
        test VIDIOC_G/S_MODULATOR: OK (Not Supported)
        test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
        test VIDIOC_ENUMAUDOUT: OK (Not Supported)
        test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
        test VIDIOC_G/S_AUDOUT: OK (Not Supported)
        Outputs: 0 Audio Outputs: 0 Modulators: 0

Input/Output configuration ioctls:
        test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
        test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
        test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
        test VIDIOC_G/S_EDID: OK (Not Supported)

        Control ioctls:
                test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK (Not Supported)
                test VIDIOC_QUERYCTRL: OK (Not Supported)
                test VIDIOC_G/S_CTRL: OK (Not Supported)
                test VIDIOC_G/S/TRY_EXT_CTRLS: OK (Not Supported)
                test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK (Not Supported)
                test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
                Standard Controls: 0 Private Controls: 0

        Format ioctls:
                test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
                test VIDIOC_G/S_PARM: OK (Not Supported)
                test VIDIOC_G_FBUF: OK (Not Supported)
                test VIDIOC_G_FMT: OK
                test VIDIOC_TRY_FMT: OK
                test VIDIOC_S_FMT: OK
                test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
                test Cropping: OK (Not Supported)
                test Composing: OK
                test Scaling: OK

        Codec ioctls:
                test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
                test VIDIOC_G_ENC_INDEX: OK (Not Supported)
                test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)

        Buffer ioctls:
                test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
                test VIDIOC_EXPBUF: OK

Test input 0:


Total: 43, Succeeded: 43, Failed: 0, Warnings: 0

Rick Chang (3):
  dt-bindings: mediatek: Add a binding for Mediatek JPEG Decoder
  vcodec: mediatek: Add Mediatek JPEG Decoder Driver
  arm: dts: mt2701: Add node for Mediatek JPEG Decoder

 .../bindings/media/mediatek-jpeg-decoder.txt       |   37 +
 arch/arm/boot/dts/mt2701.dtsi                      |   14 +
 drivers/media/platform/Kconfig                     |   15 +
 drivers/media/platform/Makefile                    |    2 +
 drivers/media/platform/mtk-jpeg/Makefile           |    2 +
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c    | 1303 ++++++++++++++++++++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h    |  139 +++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c      |  417 +++++++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h      |   91 ++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c   |  160 +++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h   |   25 +
 drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h     |   58 +
 12 files changed, 2263 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt
 create mode 100644 drivers/media/platform/mtk-jpeg/Makefile
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h

-- 
1.9.1

^ permalink raw reply	[flat|nested] 19+ messages in thread

* [PATCH v6 1/3] dt-bindings: mediatek: Add a binding for Mediatek JPEG Decoder
  2016-11-17  3:38 [PATCH v6 0/3] Add Mediatek JPEG Decoder Rick Chang
@ 2016-11-17  3:38 ` Rick Chang
  2016-11-17  3:38 ` [PATCH v6 2/3] vcodec: mediatek: Add Mediatek JPEG Decoder Driver Rick Chang
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 19+ messages in thread
From: Rick Chang @ 2016-11-17  3:38 UTC (permalink / raw)
  To: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring
  Cc: linux-kernel, linux-media, srv_heupstream, linux-mediatek,
	linux-arm-kernel, devicetree, Minghsiu Tsai, Rick Chang

Add a DT binding documentation for Mediatek JPEG Decoder of
MT2701 SoC.

Signed-off-by: Rick Chang <rick.chang@mediatek.com>
Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
---
 .../bindings/media/mediatek-jpeg-decoder.txt       | 37 ++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt

diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt
new file mode 100644
index 0000000..3813947
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt
@@ -0,0 +1,37 @@
+* Mediatek JPEG Decoder
+
+Mediatek JPEG Decoder is the JPEG decode hardware present in Mediatek SoCs
+
+Required properties:
+- compatible : must be one of the following string:
+	"mediatek,mt8173-jpgdec"
+	"mediatek,mt2701-jpgdec"
+- reg : physical base address of the jpeg decoder registers and length of
+  memory mapped region.
+- interrupts : interrupt number to the interrupt controller.
+- clocks: device clocks, see
+  Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
+- clock-names: must contain "jpgdec-smi" and "jpgdec".
+- power-domains: a phandle to the power domain, see
+  Documentation/devicetree/bindings/power/power_domain.txt for details.
+- mediatek,larb: must contain the local arbiters in the current Socs, see
+  Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
+  for details.
+- iommus: should point to the respective IOMMU block with master port as
+  argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
+  for details.
+
+Example:
+	jpegdec: jpegdec@15004000 {
+		compatible = "mediatek,mt2701-jpgdec";
+		reg = <0 0x15004000 0 0x1000>;
+		interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_LOW>;
+		clocks =  <&imgsys CLK_IMG_JPGDEC_SMI>,
+			  <&imgsys CLK_IMG_JPGDEC>;
+		clock-names = "jpgdec-smi",
+			      "jpgdec";
+		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
+		mediatek,larb = <&larb2>;
+		iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>,
+			 <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>;
+	};
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH v6 2/3] vcodec: mediatek: Add Mediatek JPEG Decoder Driver
  2016-11-17  3:38 [PATCH v6 0/3] Add Mediatek JPEG Decoder Rick Chang
  2016-11-17  3:38 ` [PATCH v6 1/3] dt-bindings: mediatek: Add a binding for " Rick Chang
@ 2016-11-17  3:38 ` Rick Chang
  2016-11-17  3:38 ` [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder Rick Chang
  2016-11-21 14:53 ` [PATCH v6 0/3] Add " Hans Verkuil
  3 siblings, 0 replies; 19+ messages in thread
From: Rick Chang @ 2016-11-17  3:38 UTC (permalink / raw)
  To: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring
  Cc: linux-kernel, linux-media, srv_heupstream, linux-mediatek,
	linux-arm-kernel, devicetree, Minghsiu Tsai, Rick Chang

Add v4l2 driver for Mediatek JPEG Decoder

Signed-off-by: Rick Chang <rick.chang@mediatek.com>
Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
---
 drivers/media/platform/Kconfig                   |   15 +
 drivers/media/platform/Makefile                  |    2 +
 drivers/media/platform/mtk-jpeg/Makefile         |    2 +
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c  | 1303 ++++++++++++++++++++++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h  |  139 +++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c    |  417 +++++++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h    |   91 ++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c |  160 +++
 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h |   25 +
 drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h   |   58 +
 10 files changed, 2212 insertions(+)
 create mode 100644 drivers/media/platform/mtk-jpeg/Makefile
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h
 create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 754edbf1..96c9887 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -162,6 +162,21 @@ config VIDEO_CODA
 	   Coda is a range of video codec IPs that supports
 	   H.264, MPEG-4, and other video formats.
 
+config VIDEO_MEDIATEK_JPEG
+	tristate "Mediatek JPEG Codec driver"
+	depends on MTK_IOMMU_V1 || COMPILE_TEST
+	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on ARCH_MEDIATEK || COMPILE_TEST
+	depends on HAS_DMA
+	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_MEM2MEM_DEV
+	---help---
+	  Mediatek jpeg codec driver provides HW capability to decode
+	  JPEG format
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called mtk-jpeg
+
 config VIDEO_MEDIATEK_VPU
 	tristate "Mediatek Video Processor Unit"
 	depends on VIDEO_DEV && VIDEO_V4L2 && HAS_DMA
diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
index f842933..cf701e3 100644
--- a/drivers/media/platform/Makefile
+++ b/drivers/media/platform/Makefile
@@ -68,3 +68,5 @@ obj-$(CONFIG_VIDEO_MEDIATEK_VPU)	+= mtk-vpu/
 obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC)	+= mtk-vcodec/
 
 obj-$(CONFIG_VIDEO_MEDIATEK_MDP)	+= mtk-mdp/
+
+obj-$(CONFIG_VIDEO_MEDIATEK_JPEG)	+= mtk-jpeg/
diff --git a/drivers/media/platform/mtk-jpeg/Makefile b/drivers/media/platform/mtk-jpeg/Makefile
new file mode 100644
index 0000000..b2e6069
--- /dev/null
+++ b/drivers/media/platform/mtk-jpeg/Makefile
@@ -0,0 +1,2 @@
+mtk_jpeg-objs := mtk_jpeg_core.o mtk_jpeg_hw.o mtk_jpeg_parse.o
+obj-$(CONFIG_VIDEO_MEDIATEK_JPEG) += mtk_jpeg.o
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
new file mode 100644
index 0000000..1101da8
--- /dev/null
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -0,0 +1,1303 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@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/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/spinlock.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
+#include <soc/mediatek/smi.h>
+#include <asm/dma-iommu.h>
+
+#include "mtk_jpeg_hw.h"
+#include "mtk_jpeg_core.h"
+#include "mtk_jpeg_parse.h"
+
+static struct mtk_jpeg_fmt mtk_jpeg_formats[] = {
+	{
+		.fourcc		= V4L2_PIX_FMT_JPEG,
+		.colplanes	= 1,
+		.flags		= MTK_JPEG_FMT_FLAG_DEC_OUTPUT,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_YUV420M,
+		.h_sample	= {4, 2, 2},
+		.v_sample	= {4, 2, 2},
+		.colplanes	= 3,
+		.h_align	= 5,
+		.v_align	= 4,
+		.flags		= MTK_JPEG_FMT_FLAG_DEC_CAPTURE,
+	},
+	{
+		.fourcc		= V4L2_PIX_FMT_YUV422M,
+		.h_sample	= {4, 2, 2},
+		.v_sample	= {4, 4, 4},
+		.colplanes	= 3,
+		.h_align	= 5,
+		.v_align	= 3,
+		.flags		= MTK_JPEG_FMT_FLAG_DEC_CAPTURE,
+	},
+};
+
+#define MTK_JPEG_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_formats)
+
+enum {
+	MTK_JPEG_BUF_FLAGS_INIT			= 0,
+	MTK_JPEG_BUF_FLAGS_LAST_FRAME		= 1,
+};
+
+struct mtk_jpeg_src_buf {
+	struct vb2_v4l2_buffer b;
+	struct list_head list;
+	int flags;
+	struct mtk_jpeg_dec_param dec_param;
+};
+
+static int debug;
+module_param(debug, int, 0644);
+
+static inline struct mtk_jpeg_ctx *mtk_jpeg_fh_to_ctx(struct v4l2_fh *fh)
+{
+	return container_of(fh, struct mtk_jpeg_ctx, fh);
+}
+
+static inline struct mtk_jpeg_src_buf *mtk_jpeg_vb2_to_srcbuf(
+							struct vb2_buffer *vb)
+{
+	return container_of(to_vb2_v4l2_buffer(vb), struct mtk_jpeg_src_buf, b);
+}
+
+static int mtk_jpeg_querycap(struct file *file, void *priv,
+			     struct v4l2_capability *cap)
+{
+	struct mtk_jpeg_dev *jpeg = video_drvdata(file);
+
+	strlcpy(cap->driver, MTK_JPEG_NAME " decoder", sizeof(cap->driver));
+	strlcpy(cap->card, MTK_JPEG_NAME " decoder", sizeof(cap->card));
+	snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
+		 dev_name(jpeg->dev));
+
+	return 0;
+}
+
+static int mtk_jpeg_enum_fmt(struct mtk_jpeg_fmt *mtk_jpeg_formats, int n,
+			     struct v4l2_fmtdesc *f, u32 type)
+{
+	int i, num = 0;
+
+	for (i = 0; i < n; ++i) {
+		if (mtk_jpeg_formats[i].flags & type) {
+			if (num == f->index)
+				break;
+			++num;
+		}
+	}
+
+	if (i >= n)
+		return -EINVAL;
+
+	f->pixelformat = mtk_jpeg_formats[i].fourcc;
+
+	return 0;
+}
+
+static int mtk_jpeg_enum_fmt_vid_cap(struct file *file, void *priv,
+				     struct v4l2_fmtdesc *f)
+{
+	return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
+				 MTK_JPEG_FMT_FLAG_DEC_CAPTURE);
+}
+
+static int mtk_jpeg_enum_fmt_vid_out(struct file *file, void *priv,
+				     struct v4l2_fmtdesc *f)
+{
+	return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f,
+				 MTK_JPEG_FMT_FLAG_DEC_OUTPUT);
+}
+
+static struct mtk_jpeg_q_data *mtk_jpeg_get_q_data(struct mtk_jpeg_ctx *ctx,
+						   enum v4l2_buf_type type)
+{
+	if (V4L2_TYPE_IS_OUTPUT(type))
+		return &ctx->out_q;
+	return &ctx->cap_q;
+}
+
+static struct mtk_jpeg_fmt *mtk_jpeg_find_format(struct mtk_jpeg_ctx *ctx,
+						 u32 pixelformat,
+						 unsigned int fmt_type)
+{
+	unsigned int k, fmt_flag;
+
+	fmt_flag = (fmt_type == MTK_JPEG_FMT_TYPE_OUTPUT) ?
+		   MTK_JPEG_FMT_FLAG_DEC_OUTPUT :
+		   MTK_JPEG_FMT_FLAG_DEC_CAPTURE;
+
+	for (k = 0; k < MTK_JPEG_NUM_FORMATS; k++) {
+		struct mtk_jpeg_fmt *fmt = &mtk_jpeg_formats[k];
+
+		if (fmt->fourcc == pixelformat && fmt->flags & fmt_flag)
+			return fmt;
+	}
+
+	return NULL;
+}
+
+static void mtk_jpeg_bound_align_image(u32 *w, unsigned int wmin,
+				       unsigned int wmax, unsigned int walign,
+				       u32 *h, unsigned int hmin,
+				       unsigned int hmax, unsigned int halign)
+{
+	int width, height, w_step, h_step;
+
+	width = *w;
+	height = *h;
+	w_step = 1 << walign;
+	h_step = 1 << halign;
+
+	v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0);
+	if (*w < width && (*w + w_step) <= wmax)
+		*w += w_step;
+	if (*h < height && (*h + h_step) <= hmax)
+		*h += h_step;
+}
+
+static void mtk_jpeg_adjust_fmt_mplane(struct mtk_jpeg_ctx *ctx,
+				       struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+	struct mtk_jpeg_q_data *q_data;
+	int i;
+
+	q_data = mtk_jpeg_get_q_data(ctx, f->type);
+
+	pix_mp->width = q_data->w;
+	pix_mp->height = q_data->h;
+	pix_mp->pixelformat = q_data->fmt->fourcc;
+	pix_mp->num_planes = q_data->fmt->colplanes;
+
+	for (i = 0; i < pix_mp->num_planes; i++) {
+		pix_mp->plane_fmt[i].bytesperline = q_data->bytesperline[i];
+		pix_mp->plane_fmt[i].sizeimage = q_data->sizeimage[i];
+	}
+}
+
+static int mtk_jpeg_try_fmt_mplane(struct v4l2_format *f,
+				   struct mtk_jpeg_fmt *fmt,
+				   struct mtk_jpeg_ctx *ctx, int q_type)
+{
+	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	int i;
+
+	memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
+	pix_mp->field = V4L2_FIELD_NONE;
+
+	if (ctx->state != MTK_JPEG_INIT) {
+		mtk_jpeg_adjust_fmt_mplane(ctx, f);
+		goto end;
+	}
+
+	pix_mp->num_planes = fmt->colplanes;
+	pix_mp->pixelformat = fmt->fourcc;
+
+	if (q_type == MTK_JPEG_FMT_TYPE_OUTPUT) {
+		struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[0];
+
+		mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
+					   MTK_JPEG_MAX_WIDTH, 0,
+					   &pix_mp->height, MTK_JPEG_MIN_HEIGHT,
+					   MTK_JPEG_MAX_HEIGHT, 0);
+
+		memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
+		pfmt->bytesperline = 0;
+		/* Source size must be aligned to 128 */
+		pfmt->sizeimage = mtk_jpeg_align(pfmt->sizeimage, 128);
+		if (pfmt->sizeimage == 0)
+			pfmt->sizeimage = MTK_JPEG_DEFAULT_SIZEIMAGE;
+		goto end;
+	}
+
+	/* type is MTK_JPEG_FMT_TYPE_CAPTURE */
+	mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH,
+				   MTK_JPEG_MAX_WIDTH, fmt->h_align,
+				   &pix_mp->height, MTK_JPEG_MIN_HEIGHT,
+				   MTK_JPEG_MAX_HEIGHT, fmt->v_align);
+
+	for (i = 0; i < fmt->colplanes; i++) {
+		struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i];
+		u32 stride = pix_mp->width * fmt->h_sample[i] / 4;
+		u32 h = pix_mp->height * fmt->v_sample[i] / 4;
+
+		memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
+		pfmt->bytesperline = stride;
+		pfmt->sizeimage = stride * h;
+	}
+end:
+	v4l2_dbg(2, debug, &jpeg->v4l2_dev, "wxh:%ux%u\n",
+		 pix_mp->width, pix_mp->height);
+	for (i = 0; i < pix_mp->num_planes; i++) {
+		v4l2_dbg(2, debug, &jpeg->v4l2_dev,
+			 "plane[%d] bpl=%u, size=%u\n",
+			 i,
+			 pix_mp->plane_fmt[i].bytesperline,
+			 pix_mp->plane_fmt[i].sizeimage);
+	}
+	return 0;
+}
+
+static int mtk_jpeg_g_fmt_vid_mplane(struct file *file, void *priv,
+				     struct v4l2_format *f)
+{
+	struct vb2_queue *vq;
+	struct mtk_jpeg_q_data *q_data = NULL;
+	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	int i;
+
+	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+	if (!vq)
+		return -EINVAL;
+
+	q_data = mtk_jpeg_get_q_data(ctx, f->type);
+
+	memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
+	pix_mp->width = q_data->w;
+	pix_mp->height = q_data->h;
+	pix_mp->field = V4L2_FIELD_NONE;
+	pix_mp->pixelformat = q_data->fmt->fourcc;
+	pix_mp->num_planes = q_data->fmt->colplanes;
+	pix_mp->colorspace = ctx->colorspace;
+	pix_mp->ycbcr_enc = ctx->ycbcr_enc;
+	pix_mp->xfer_func = ctx->xfer_func;
+	pix_mp->quantization = ctx->quantization;
+
+	v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) g_fmt:%c%c%c%c wxh:%ux%u\n",
+		 f->type,
+		 (pix_mp->pixelformat & 0xff),
+		 (pix_mp->pixelformat >>  8 & 0xff),
+		 (pix_mp->pixelformat >> 16 & 0xff),
+		 (pix_mp->pixelformat >> 24 & 0xff),
+		 pix_mp->width, pix_mp->height);
+
+	for (i = 0; i < pix_mp->num_planes; i++) {
+		struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i];
+
+		pfmt->bytesperline = q_data->bytesperline[i];
+		pfmt->sizeimage = q_data->sizeimage[i];
+		memset(pfmt->reserved, 0, sizeof(pfmt->reserved));
+
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev,
+			 "plane[%d] bpl=%u, size=%u\n",
+			 i,
+			 pfmt->bytesperline,
+			 pfmt->sizeimage);
+	}
+	return 0;
+}
+
+static int mtk_jpeg_try_fmt_vid_cap_mplane(struct file *file, void *priv,
+					   struct v4l2_format *f)
+{
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+	struct mtk_jpeg_fmt *fmt;
+
+	fmt = mtk_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat,
+				   MTK_JPEG_FMT_TYPE_CAPTURE);
+	if (!fmt)
+		fmt = ctx->cap_q.fmt;
+
+	v4l2_dbg(2, debug, &ctx->jpeg->v4l2_dev, "(%d) try_fmt:%c%c%c%c\n",
+		 f->type,
+		 (fmt->fourcc & 0xff),
+		 (fmt->fourcc >>  8 & 0xff),
+		 (fmt->fourcc >> 16 & 0xff),
+		 (fmt->fourcc >> 24 & 0xff));
+
+	return mtk_jpeg_try_fmt_mplane(f, fmt, ctx, MTK_JPEG_FMT_TYPE_CAPTURE);
+}
+
+static int mtk_jpeg_try_fmt_vid_out_mplane(struct file *file, void *priv,
+					   struct v4l2_format *f)
+{
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+	struct mtk_jpeg_fmt *fmt;
+
+	fmt = mtk_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat,
+				   MTK_JPEG_FMT_TYPE_OUTPUT);
+	if (!fmt)
+		fmt = ctx->out_q.fmt;
+
+	v4l2_dbg(2, debug, &ctx->jpeg->v4l2_dev, "(%d) try_fmt:%c%c%c%c\n",
+		 f->type,
+		 (fmt->fourcc & 0xff),
+		 (fmt->fourcc >>  8 & 0xff),
+		 (fmt->fourcc >> 16 & 0xff),
+		 (fmt->fourcc >> 24 & 0xff));
+
+	return mtk_jpeg_try_fmt_mplane(f, fmt, ctx, MTK_JPEG_FMT_TYPE_OUTPUT);
+}
+
+static int mtk_jpeg_s_fmt_mplane(struct mtk_jpeg_ctx *ctx,
+				 struct v4l2_format *f)
+{
+	struct vb2_queue *vq;
+	struct mtk_jpeg_q_data *q_data = NULL;
+	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	unsigned int f_type;
+	int i;
+
+	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+	if (!vq)
+		return -EINVAL;
+
+	q_data = mtk_jpeg_get_q_data(ctx, f->type);
+
+	if (vb2_is_busy(vq)) {
+		v4l2_err(&jpeg->v4l2_dev, "queue busy\n");
+		return -EBUSY;
+	}
+
+	f_type = V4L2_TYPE_IS_OUTPUT(f->type) ?
+			 MTK_JPEG_FMT_TYPE_OUTPUT : MTK_JPEG_FMT_TYPE_CAPTURE;
+
+	q_data->fmt = mtk_jpeg_find_format(ctx, pix_mp->pixelformat, f_type);
+	q_data->w = pix_mp->width;
+	q_data->h = pix_mp->height;
+	ctx->colorspace = pix_mp->colorspace;
+	ctx->ycbcr_enc = pix_mp->ycbcr_enc;
+	ctx->xfer_func = pix_mp->xfer_func;
+	ctx->quantization = pix_mp->quantization;
+
+	v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) s_fmt:%c%c%c%c wxh:%ux%u\n",
+		 f->type,
+		 (q_data->fmt->fourcc & 0xff),
+		 (q_data->fmt->fourcc >>  8 & 0xff),
+		 (q_data->fmt->fourcc >> 16 & 0xff),
+		 (q_data->fmt->fourcc >> 24 & 0xff),
+		 q_data->w, q_data->h);
+
+	for (i = 0; i < q_data->fmt->colplanes; i++) {
+		q_data->bytesperline[i] = pix_mp->plane_fmt[i].bytesperline;
+		q_data->sizeimage[i] = pix_mp->plane_fmt[i].sizeimage;
+
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev,
+			 "plane[%d] bpl=%u, size=%u\n",
+			 i, q_data->bytesperline[i], q_data->sizeimage[i]);
+	}
+
+	return 0;
+}
+
+static int mtk_jpeg_s_fmt_vid_out_mplane(struct file *file, void *priv,
+					 struct v4l2_format *f)
+{
+	int ret;
+
+	ret = mtk_jpeg_try_fmt_vid_out_mplane(file, priv, f);
+	if (ret)
+		return ret;
+
+	return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f);
+}
+
+static int mtk_jpeg_s_fmt_vid_cap_mplane(struct file *file, void *priv,
+					 struct v4l2_format *f)
+{
+	int ret;
+
+	ret = mtk_jpeg_try_fmt_vid_cap_mplane(file, priv, f);
+	if (ret)
+		return ret;
+
+	return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f);
+}
+
+static void mtk_jpeg_queue_src_chg_event(struct mtk_jpeg_ctx *ctx)
+{
+	static const struct v4l2_event ev_src_ch = {
+		.type = V4L2_EVENT_SOURCE_CHANGE,
+		.u.src_change.changes =
+		V4L2_EVENT_SRC_CH_RESOLUTION,
+	};
+
+	v4l2_event_queue_fh(&ctx->fh, &ev_src_ch);
+}
+
+static int mtk_jpeg_subscribe_event(struct v4l2_fh *fh,
+				    const struct v4l2_event_subscription *sub)
+{
+	switch (sub->type) {
+	case V4L2_EVENT_SOURCE_CHANGE:
+		return v4l2_src_change_event_subscribe(fh, sub);
+	default:
+		return -EINVAL;
+	}
+}
+
+static int mtk_jpeg_g_selection(struct file *file, void *priv,
+				struct v4l2_selection *s)
+{
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_COMPOSE:
+	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+		s->r.width = ctx->out_q.w;
+		s->r.height = ctx->out_q.h;
+		s->r.left = 0;
+		s->r.top = 0;
+		break;
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+	case V4L2_SEL_TGT_COMPOSE_PADDED:
+		s->r.width = ctx->cap_q.w;
+		s->r.height = ctx->cap_q.h;
+		s->r.left = 0;
+		s->r.top = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int mtk_jpeg_s_selection(struct file *file, void *priv,
+				struct v4l2_selection *s)
+{
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_COMPOSE:
+		s->r.left = 0;
+		s->r.top = 0;
+		s->r.width = ctx->out_q.w;
+		s->r.height = ctx->out_q.h;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int mtk_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+	struct v4l2_fh *fh = file->private_data;
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv);
+	struct vb2_queue *vq;
+	struct vb2_buffer *vb;
+	struct mtk_jpeg_src_buf *jpeg_src_buf;
+
+	if (buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		goto end;
+
+	vq = v4l2_m2m_get_vq(fh->m2m_ctx, buf->type);
+	if (buf->index >= vq->num_buffers) {
+		dev_err(ctx->jpeg->dev, "buffer index out of range\n");
+		return -EINVAL;
+	}
+
+	vb = vq->bufs[buf->index];
+	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
+	jpeg_src_buf->flags = (buf->m.planes[0].bytesused == 0) ?
+		MTK_JPEG_BUF_FLAGS_LAST_FRAME : MTK_JPEG_BUF_FLAGS_INIT;
+end:
+	return v4l2_m2m_qbuf(file, fh->m2m_ctx, buf);
+}
+
+static const struct v4l2_ioctl_ops mtk_jpeg_ioctl_ops = {
+	.vidioc_querycap                = mtk_jpeg_querycap,
+	.vidioc_enum_fmt_vid_cap_mplane = mtk_jpeg_enum_fmt_vid_cap,
+	.vidioc_enum_fmt_vid_out_mplane = mtk_jpeg_enum_fmt_vid_out,
+	.vidioc_try_fmt_vid_cap_mplane	= mtk_jpeg_try_fmt_vid_cap_mplane,
+	.vidioc_try_fmt_vid_out_mplane	= mtk_jpeg_try_fmt_vid_out_mplane,
+	.vidioc_g_fmt_vid_cap_mplane    = mtk_jpeg_g_fmt_vid_mplane,
+	.vidioc_g_fmt_vid_out_mplane    = mtk_jpeg_g_fmt_vid_mplane,
+	.vidioc_s_fmt_vid_cap_mplane    = mtk_jpeg_s_fmt_vid_cap_mplane,
+	.vidioc_s_fmt_vid_out_mplane    = mtk_jpeg_s_fmt_vid_out_mplane,
+	.vidioc_qbuf                    = mtk_jpeg_qbuf,
+	.vidioc_subscribe_event         = mtk_jpeg_subscribe_event,
+	.vidioc_g_selection		= mtk_jpeg_g_selection,
+	.vidioc_s_selection		= mtk_jpeg_s_selection,
+
+	.vidioc_create_bufs		= v4l2_m2m_ioctl_create_bufs,
+	.vidioc_prepare_buf		= v4l2_m2m_ioctl_prepare_buf,
+	.vidioc_reqbufs                 = v4l2_m2m_ioctl_reqbufs,
+	.vidioc_querybuf                = v4l2_m2m_ioctl_querybuf,
+	.vidioc_dqbuf                   = v4l2_m2m_ioctl_dqbuf,
+	.vidioc_expbuf                  = v4l2_m2m_ioctl_expbuf,
+	.vidioc_streamon                = v4l2_m2m_ioctl_streamon,
+	.vidioc_streamoff               = v4l2_m2m_ioctl_streamoff,
+
+	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+};
+
+static int mtk_jpeg_queue_setup(struct vb2_queue *q,
+				unsigned int *num_buffers,
+				unsigned int *num_planes,
+				unsigned int sizes[],
+				struct device *alloc_ctxs[])
+{
+	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
+	struct mtk_jpeg_q_data *q_data = NULL;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	int i;
+
+	v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) buf_req count=%u\n",
+		 q->type, *num_buffers);
+
+	q_data = mtk_jpeg_get_q_data(ctx, q->type);
+	if (!q_data)
+		return -EINVAL;
+
+	*num_planes = q_data->fmt->colplanes;
+	for (i = 0; i < q_data->fmt->colplanes; i++) {
+		sizes[i] = q_data->sizeimage[i];
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev, "sizeimage[%d]=%u\n",
+			 i, sizes[i]);
+	}
+
+	return 0;
+}
+
+static int mtk_jpeg_buf_prepare(struct vb2_buffer *vb)
+{
+	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	struct mtk_jpeg_q_data *q_data = NULL;
+	int i;
+
+	q_data = mtk_jpeg_get_q_data(ctx, vb->vb2_queue->type);
+	if (!q_data)
+		return -EINVAL;
+
+	for (i = 0; i < q_data->fmt->colplanes; i++)
+		vb2_set_plane_payload(vb, i, q_data->sizeimage[i]);
+
+	return 0;
+}
+
+static bool mtk_jpeg_check_resolution_change(struct mtk_jpeg_ctx *ctx,
+					     struct mtk_jpeg_dec_param *param)
+{
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct mtk_jpeg_q_data *q_data;
+
+	q_data = &ctx->out_q;
+	if (q_data->w != param->pic_w || q_data->h != param->pic_h) {
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Picture size change\n");
+		return true;
+	}
+
+	q_data = &ctx->cap_q;
+	if (q_data->fmt != mtk_jpeg_find_format(ctx, param->dst_fourcc,
+						MTK_JPEG_FMT_TYPE_CAPTURE)) {
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev, "format change\n");
+		return true;
+	}
+	return false;
+}
+
+static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx *ctx,
+				    struct mtk_jpeg_dec_param *param)
+{
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct mtk_jpeg_q_data *q_data;
+	int i;
+
+	q_data = &ctx->out_q;
+	q_data->w = param->pic_w;
+	q_data->h = param->pic_h;
+
+	q_data = &ctx->cap_q;
+	q_data->w = param->dec_w;
+	q_data->h = param->dec_h;
+	q_data->fmt = mtk_jpeg_find_format(ctx,
+					   param->dst_fourcc,
+					   MTK_JPEG_FMT_TYPE_CAPTURE);
+
+	for (i = 0; i < q_data->fmt->colplanes; i++) {
+		q_data->bytesperline[i] = param->mem_stride[i];
+		q_data->sizeimage[i] = param->comp_size[i];
+	}
+
+	v4l2_dbg(1, debug, &jpeg->v4l2_dev,
+		 "set_parse cap:%c%c%c%c pic(%u, %u), buf(%u, %u)\n",
+		 (param->dst_fourcc & 0xff),
+		 (param->dst_fourcc >>  8 & 0xff),
+		 (param->dst_fourcc >> 16 & 0xff),
+		 (param->dst_fourcc >> 24 & 0xff),
+		 param->pic_w, param->pic_h,
+		 param->dec_w, param->dec_h);
+}
+
+static void mtk_jpeg_buf_queue(struct vb2_buffer *vb)
+{
+	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	struct mtk_jpeg_dec_param *param;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct mtk_jpeg_src_buf *jpeg_src_buf;
+	bool header_valid;
+
+	v4l2_dbg(2, debug, &jpeg->v4l2_dev, "(%d) buf_q id=%d, vb=%p\n",
+		 vb->vb2_queue->type, vb->index, vb);
+
+	if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		goto end;
+
+	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
+	param = &jpeg_src_buf->dec_param;
+	memset(param, 0, sizeof(*param));
+
+	if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) {
+		v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Got eos\n");
+		goto end;
+	}
+	header_valid = mtk_jpeg_parse(param, (u8 *)vb2_plane_vaddr(vb, 0),
+				      vb2_get_plane_payload(vb, 0));
+	if (!header_valid) {
+		v4l2_err(&jpeg->v4l2_dev, "Header invalid.\n");
+		vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
+		return;
+	}
+
+	if (ctx->state == MTK_JPEG_INIT) {
+		mtk_jpeg_queue_src_chg_event(ctx);
+		mtk_jpeg_set_queue_data(ctx, param);
+		ctx->state = MTK_JPEG_RUNNING;
+	}
+end:
+	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, to_vb2_v4l2_buffer(vb));
+}
+
+static void *mtk_jpeg_buf_remove(struct mtk_jpeg_ctx *ctx,
+				 enum v4l2_buf_type type)
+{
+	if (V4L2_TYPE_IS_OUTPUT(type))
+		return v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	else
+		return v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+}
+
+static int mtk_jpeg_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
+	struct vb2_buffer *vb;
+	int ret = 0;
+
+	ret = pm_runtime_get_sync(ctx->jpeg->dev);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+err:
+	while ((vb = mtk_jpeg_buf_remove(ctx, q->type)))
+		v4l2_m2m_buf_done(to_vb2_v4l2_buffer(vb), VB2_BUF_STATE_QUEUED);
+	return ret;
+}
+
+static void mtk_jpeg_stop_streaming(struct vb2_queue *q)
+{
+	struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q);
+	struct vb2_buffer *vb;
+
+	/*
+	 * STREAMOFF is an acknowledgment for source change event.
+	 * Before STREAMOFF, we still have to return the old resolution and
+	 * subsampling. Update capture queue when the stream is off.
+	 */
+	if (ctx->state == MTK_JPEG_SOURCE_CHANGE &&
+	    !V4L2_TYPE_IS_OUTPUT(q->type)) {
+		struct mtk_jpeg_src_buf *src_buf;
+
+		vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+		src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
+		mtk_jpeg_set_queue_data(ctx, &src_buf->dec_param);
+		ctx->state = MTK_JPEG_RUNNING;
+	} else if (V4L2_TYPE_IS_OUTPUT(q->type)) {
+		ctx->state = MTK_JPEG_INIT;
+	}
+
+	while ((vb = mtk_jpeg_buf_remove(ctx, q->type)))
+		v4l2_m2m_buf_done(to_vb2_v4l2_buffer(vb), VB2_BUF_STATE_ERROR);
+
+	pm_runtime_put_sync(ctx->jpeg->dev);
+}
+
+static struct vb2_ops mtk_jpeg_qops = {
+	.queue_setup        = mtk_jpeg_queue_setup,
+	.buf_prepare        = mtk_jpeg_buf_prepare,
+	.buf_queue          = mtk_jpeg_buf_queue,
+	.wait_prepare       = vb2_ops_wait_prepare,
+	.wait_finish        = vb2_ops_wait_finish,
+	.start_streaming    = mtk_jpeg_start_streaming,
+	.stop_streaming     = mtk_jpeg_stop_streaming,
+};
+
+static void mtk_jpeg_set_dec_src(struct mtk_jpeg_ctx *ctx,
+				 struct vb2_buffer *src_buf,
+				 struct mtk_jpeg_bs *bs)
+{
+	bs->str_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
+	bs->end_addr = bs->str_addr +
+			 mtk_jpeg_align(vb2_get_plane_payload(src_buf, 0), 16);
+	bs->size = mtk_jpeg_align(vb2_plane_size(src_buf, 0), 128);
+}
+
+static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx,
+				struct mtk_jpeg_dec_param *param,
+				struct vb2_buffer *dst_buf,
+				struct mtk_jpeg_fb *fb)
+{
+	int i;
+
+	if (param->comp_num != dst_buf->num_planes) {
+		dev_err(ctx->jpeg->dev, "plane number mismatch (%u != %u)\n",
+			param->comp_num, dst_buf->num_planes);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < dst_buf->num_planes; i++) {
+		if (vb2_plane_size(dst_buf, i) < param->comp_size[i]) {
+			dev_err(ctx->jpeg->dev,
+				"buffer size is underflow (%lu < %u)\n",
+				vb2_plane_size(dst_buf, 0),
+				param->comp_size[i]);
+			return -EINVAL;
+		}
+		fb->plane_addr[i] = vb2_dma_contig_plane_dma_addr(dst_buf, i);
+	}
+
+	return 0;
+}
+
+static void mtk_jpeg_device_run(void *priv)
+{
+	struct mtk_jpeg_ctx *ctx = priv;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct vb2_buffer *src_buf, *dst_buf;
+	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+	unsigned long flags;
+	struct mtk_jpeg_src_buf *jpeg_src_buf;
+	struct mtk_jpeg_bs bs;
+	struct mtk_jpeg_fb fb;
+	int i;
+
+	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(src_buf);
+
+	if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) {
+		for (i = 0; i < dst_buf->num_planes; i++)
+			vb2_set_plane_payload(dst_buf, i, 0);
+		buf_state = VB2_BUF_STATE_DONE;
+		goto dec_end;
+	}
+
+	if (mtk_jpeg_check_resolution_change(ctx, &jpeg_src_buf->dec_param)) {
+		mtk_jpeg_queue_src_chg_event(ctx);
+		ctx->state = MTK_JPEG_SOURCE_CHANGE;
+		v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+		return;
+	}
+
+	mtk_jpeg_set_dec_src(ctx, src_buf, &bs);
+	if (mtk_jpeg_set_dec_dst(ctx, &jpeg_src_buf->dec_param, dst_buf, &fb))
+		goto dec_end;
+
+	spin_lock_irqsave(&jpeg->hw_lock, flags);
+	mtk_jpeg_dec_reset(jpeg->dec_reg_base);
+	mtk_jpeg_dec_set_config(jpeg->dec_reg_base,
+				&jpeg_src_buf->dec_param, &bs, &fb);
+
+	mtk_jpeg_dec_start(jpeg->dec_reg_base);
+	spin_unlock_irqrestore(&jpeg->hw_lock, flags);
+	return;
+
+dec_end:
+	v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf), buf_state);
+	v4l2_m2m_buf_done(to_vb2_v4l2_buffer(dst_buf), buf_state);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+}
+
+static int mtk_jpeg_job_ready(void *priv)
+{
+	struct mtk_jpeg_ctx *ctx = priv;
+
+	return (ctx->state == MTK_JPEG_RUNNING) ? 1 : 0;
+}
+
+static void mtk_jpeg_job_abort(void *priv)
+{
+	struct mtk_jpeg_ctx *ctx = priv;
+	struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+	struct vb2_buffer *src_buf, *dst_buf;
+
+	src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf), VB2_BUF_STATE_ERROR);
+	v4l2_m2m_buf_done(to_vb2_v4l2_buffer(dst_buf), VB2_BUF_STATE_ERROR);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+}
+
+static struct v4l2_m2m_ops mtk_jpeg_m2m_ops = {
+	.device_run = mtk_jpeg_device_run,
+	.job_ready  = mtk_jpeg_job_ready,
+	.job_abort  = mtk_jpeg_job_abort,
+};
+
+static int mtk_jpeg_queue_init(void *priv, struct vb2_queue *src_vq,
+			       struct vb2_queue *dst_vq)
+{
+	struct mtk_jpeg_ctx *ctx = priv;
+	int ret;
+
+	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+	src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
+	src_vq->drv_priv = ctx;
+	src_vq->buf_struct_size = sizeof(struct mtk_jpeg_src_buf);
+	src_vq->ops = &mtk_jpeg_qops;
+	src_vq->mem_ops = &vb2_dma_contig_memops;
+	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	src_vq->lock = &ctx->jpeg->lock;
+	src_vq->dev = ctx->jpeg->dev;
+	ret = vb2_queue_init(src_vq);
+	if (ret)
+		return ret;
+
+	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
+	dst_vq->drv_priv = ctx;
+	dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+	dst_vq->ops = &mtk_jpeg_qops;
+	dst_vq->mem_ops = &vb2_dma_contig_memops;
+	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	dst_vq->lock = &ctx->jpeg->lock;
+	dst_vq->dev = ctx->jpeg->dev;
+	ret = vb2_queue_init(dst_vq);
+
+	return ret;
+}
+
+static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg)
+{
+	int ret;
+
+	ret = mtk_smi_larb_get(jpeg->larb);
+	if (ret)
+		dev_err(jpeg->dev, "mtk_smi_larb_get larbvdec fail %d\n", ret);
+	clk_prepare_enable(jpeg->clk_jdec_smi);
+	clk_prepare_enable(jpeg->clk_jdec);
+}
+
+static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg)
+{
+	clk_disable_unprepare(jpeg->clk_jdec);
+	clk_disable_unprepare(jpeg->clk_jdec_smi);
+	mtk_smi_larb_put(jpeg->larb);
+}
+
+static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv)
+{
+	struct mtk_jpeg_dev *jpeg = priv;
+	struct mtk_jpeg_ctx *ctx;
+	struct vb2_buffer *src_buf, *dst_buf;
+	struct mtk_jpeg_src_buf *jpeg_src_buf;
+	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+	u32	dec_irq_ret;
+	u32 dec_ret;
+	int i;
+
+	ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
+	if (!ctx) {
+		v4l2_err(&jpeg->v4l2_dev, "Context is NULL\n");
+		return IRQ_HANDLED;
+	}
+
+	src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(src_buf);
+
+	dec_ret = mtk_jpeg_dec_get_int_status(jpeg->dec_reg_base);
+	dec_irq_ret = mtk_jpeg_dec_enum_result(dec_ret);
+
+	if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
+		mtk_jpeg_dec_reset(jpeg->dec_reg_base);
+
+	if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) {
+		dev_err(jpeg->dev, "decode failed\n");
+		goto dec_end;
+	}
+
+	for (i = 0; i < dst_buf->num_planes; i++)
+		vb2_set_plane_payload(dst_buf, i,
+				      jpeg_src_buf->dec_param.comp_size[i]);
+
+	buf_state = VB2_BUF_STATE_DONE;
+
+dec_end:
+	v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf), buf_state);
+	v4l2_m2m_buf_done(to_vb2_v4l2_buffer(dst_buf), buf_state);
+	v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+	return IRQ_HANDLED;
+}
+
+static void mtk_jpeg_set_default_params(struct mtk_jpeg_ctx *ctx)
+{
+	struct mtk_jpeg_q_data *q = &ctx->out_q;
+	int i;
+
+	ctx->colorspace = V4L2_COLORSPACE_JPEG,
+	ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+	ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
+	ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
+
+	q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG,
+					      MTK_JPEG_FMT_TYPE_OUTPUT);
+	q->w = MTK_JPEG_MIN_WIDTH;
+	q->h = MTK_JPEG_MIN_HEIGHT;
+	q->bytesperline[0] = 0;
+	q->sizeimage[0] = MTK_JPEG_DEFAULT_SIZEIMAGE;
+
+	q = &ctx->cap_q;
+	q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_YUV420M,
+					      MTK_JPEG_FMT_TYPE_CAPTURE);
+	q->w = MTK_JPEG_MIN_WIDTH;
+	q->h = MTK_JPEG_MIN_HEIGHT;
+
+	for (i = 0; i < q->fmt->colplanes; i++) {
+		u32 stride = q->w * q->fmt->h_sample[i] / 4;
+		u32 h = q->h * q->fmt->v_sample[i] / 4;
+
+		q->bytesperline[i] = stride;
+		q->sizeimage[i] = stride * h;
+	}
+}
+
+static int mtk_jpeg_open(struct file *file)
+{
+	struct mtk_jpeg_dev *jpeg = video_drvdata(file);
+	struct video_device *vfd = video_devdata(file);
+	struct mtk_jpeg_ctx *ctx;
+	int ret = 0;
+
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	if (mutex_lock_interruptible(&jpeg->lock)) {
+		ret = -ERESTARTSYS;
+		goto free;
+	}
+
+	v4l2_fh_init(&ctx->fh, vfd);
+	file->private_data = &ctx->fh;
+	v4l2_fh_add(&ctx->fh);
+
+	ctx->jpeg = jpeg;
+	ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx,
+					    mtk_jpeg_queue_init);
+	if (IS_ERR(ctx->fh.m2m_ctx)) {
+		ret = PTR_ERR(ctx->fh.m2m_ctx);
+		goto error;
+	}
+
+	mtk_jpeg_set_default_params(ctx);
+	mutex_unlock(&jpeg->lock);
+	return 0;
+
+error:
+	v4l2_fh_del(&ctx->fh);
+	v4l2_fh_exit(&ctx->fh);
+	mutex_unlock(&jpeg->lock);
+free:
+	kfree(ctx);
+	return ret;
+}
+
+static int mtk_jpeg_release(struct file *file)
+{
+	struct mtk_jpeg_dev *jpeg = video_drvdata(file);
+	struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(file->private_data);
+
+	mutex_lock(&jpeg->lock);
+	v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
+	v4l2_fh_del(&ctx->fh);
+	v4l2_fh_exit(&ctx->fh);
+	kfree(ctx);
+	mutex_unlock(&jpeg->lock);
+	return 0;
+}
+
+static const struct v4l2_file_operations mtk_jpeg_fops = {
+	.owner          = THIS_MODULE,
+	.open           = mtk_jpeg_open,
+	.release        = mtk_jpeg_release,
+	.poll           = v4l2_m2m_fop_poll,
+	.unlocked_ioctl = video_ioctl2,
+	.mmap           = v4l2_m2m_fop_mmap,
+};
+
+static int mtk_jpeg_clk_init(struct mtk_jpeg_dev *jpeg)
+{
+	struct device_node *node;
+	struct platform_device *pdev;
+
+	node = of_parse_phandle(jpeg->dev->of_node, "mediatek,larb", 0);
+	if (!node)
+		return -EINVAL;
+	pdev = of_find_device_by_node(node);
+	if (WARN_ON(!pdev)) {
+		of_node_put(node);
+		return -EINVAL;
+	}
+	of_node_put(node);
+
+	jpeg->larb = &pdev->dev;
+
+	jpeg->clk_jdec = devm_clk_get(jpeg->dev, "jpgdec");
+	if (IS_ERR(jpeg->clk_jdec))
+		return -EINVAL;
+
+	jpeg->clk_jdec_smi = devm_clk_get(jpeg->dev, "jpgdec-smi");
+	if (IS_ERR(jpeg->clk_jdec_smi))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int mtk_jpeg_probe(struct platform_device *pdev)
+{
+	struct mtk_jpeg_dev *jpeg;
+	struct resource *res;
+	int dec_irq;
+	int ret;
+
+	jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL);
+	if (!jpeg)
+		return -ENOMEM;
+
+	mutex_init(&jpeg->lock);
+	spin_lock_init(&jpeg->hw_lock);
+	jpeg->dev = &pdev->dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	jpeg->dec_reg_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(jpeg->dec_reg_base)) {
+		ret = PTR_ERR(jpeg->dec_reg_base);
+		return ret;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	dec_irq = platform_get_irq(pdev, 0);
+	if (!res || dec_irq < 0) {
+		dev_err(&pdev->dev, "Failed to get dec_irq %d.\n", dec_irq);
+		ret = -EINVAL;
+		return ret;
+	}
+
+	ret = devm_request_irq(&pdev->dev, dec_irq, mtk_jpeg_dec_irq, 0,
+			       pdev->name, jpeg);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to request dec_irq %d (%d)\n",
+			dec_irq, ret);
+		ret = -EINVAL;
+		goto err_req_irq;
+	}
+
+	ret = mtk_jpeg_clk_init(jpeg);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to init clk, err %d\n", ret);
+		goto err_clk_init;
+	}
+
+	ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to register v4l2 device\n");
+		ret = -EINVAL;
+		goto err_dev_register;
+	}
+
+	jpeg->m2m_dev = v4l2_m2m_init(&mtk_jpeg_m2m_ops);
+	if (IS_ERR(jpeg->m2m_dev)) {
+		v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n");
+		ret = PTR_ERR(jpeg->m2m_dev);
+		goto err_m2m_init;
+	}
+
+	jpeg->dec_vdev = video_device_alloc();
+	if (!jpeg->dec_vdev) {
+		ret = -ENOMEM;
+		goto err_dec_vdev_alloc;
+	}
+	snprintf(jpeg->dec_vdev->name, sizeof(jpeg->dec_vdev->name),
+		 "%s-dec", MTK_JPEG_NAME);
+	jpeg->dec_vdev->fops = &mtk_jpeg_fops;
+	jpeg->dec_vdev->ioctl_ops = &mtk_jpeg_ioctl_ops;
+	jpeg->dec_vdev->minor = -1;
+	jpeg->dec_vdev->release = video_device_release;
+	jpeg->dec_vdev->lock = &jpeg->lock;
+	jpeg->dec_vdev->v4l2_dev = &jpeg->v4l2_dev;
+	jpeg->dec_vdev->vfl_dir = VFL_DIR_M2M;
+	jpeg->dec_vdev->device_caps = V4L2_CAP_STREAMING |
+				      V4L2_CAP_VIDEO_M2M_MPLANE;
+
+	ret = video_register_device(jpeg->dec_vdev, VFL_TYPE_GRABBER, 3);
+	if (ret) {
+		v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n");
+		goto err_dec_vdev_register;
+	}
+
+	video_set_drvdata(jpeg->dec_vdev, jpeg);
+	v4l2_info(&jpeg->v4l2_dev,
+		  "decoder device registered as /dev/video%d (%d,%d)\n",
+		  jpeg->dec_vdev->num, VIDEO_MAJOR, jpeg->dec_vdev->minor);
+
+	platform_set_drvdata(pdev, jpeg);
+
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+
+err_dec_vdev_register:
+	video_device_release(jpeg->dec_vdev);
+
+err_dec_vdev_alloc:
+	v4l2_m2m_release(jpeg->m2m_dev);
+
+err_m2m_init:
+	v4l2_device_unregister(&jpeg->v4l2_dev);
+
+err_dev_register:
+
+err_clk_init:
+
+err_req_irq:
+
+	return ret;
+}
+
+static int mtk_jpeg_remove(struct platform_device *pdev)
+{
+	struct mtk_jpeg_dev *jpeg = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	video_unregister_device(jpeg->dec_vdev);
+	video_device_release(jpeg->dec_vdev);
+	v4l2_m2m_release(jpeg->m2m_dev);
+	v4l2_device_unregister(&jpeg->v4l2_dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int mtk_jpeg_pm_suspend(struct device *dev)
+{
+	struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
+
+	mtk_jpeg_dec_reset(jpeg->dec_reg_base);
+	mtk_jpeg_clk_off(jpeg);
+
+	return 0;
+}
+
+static int mtk_jpeg_pm_resume(struct device *dev)
+{
+	struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
+
+	mtk_jpeg_clk_on(jpeg);
+	mtk_jpeg_dec_reset(jpeg->dec_reg_base);
+
+	return 0;
+}
+#endif /* CONFIG_PM */
+
+#ifdef CONFIG_PM_SLEEP
+static int mtk_jpeg_suspend(struct device *dev)
+{
+	int ret;
+
+	if (pm_runtime_suspended(dev))
+		return 0;
+
+	ret = mtk_jpeg_pm_suspend(dev);
+	return ret;
+}
+
+static int mtk_jpeg_resume(struct device *dev)
+{
+	int ret;
+
+	if (pm_runtime_suspended(dev))
+		return 0;
+
+	ret = mtk_jpeg_pm_resume(dev);
+
+	return ret;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops mtk_jpeg_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(mtk_jpeg_suspend, mtk_jpeg_resume)
+	SET_RUNTIME_PM_OPS(mtk_jpeg_pm_suspend, mtk_jpeg_pm_resume, NULL)
+};
+
+static const struct of_device_id mtk_jpeg_match[] = {
+	{
+		.compatible = "mediatek,mt8173-jpgdec",
+		.data       = NULL,
+	},
+	{
+		.compatible = "mediatek,mt2701-jpgdec",
+		.data       = NULL,
+	},
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, mtk_jpeg_match);
+
+static struct platform_driver mtk_jpeg_driver = {
+	.probe = mtk_jpeg_probe,
+	.remove = mtk_jpeg_remove,
+	.driver = {
+		.owner          = THIS_MODULE,
+		.name           = MTK_JPEG_NAME,
+		.of_match_table = mtk_jpeg_match,
+		.pm             = &mtk_jpeg_pm_ops,
+	},
+};
+
+module_platform_driver(mtk_jpeg_driver);
+
+MODULE_DESCRIPTION("MediaTek JPEG codec driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
new file mode 100644
index 0000000..1a6cdfd
--- /dev/null
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@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_JPEG_CORE_H
+#define _MTK_JPEG_CORE_H
+
+#include <linux/interrupt.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fh.h>
+
+#define MTK_JPEG_NAME		"mtk-jpeg"
+
+#define MTK_JPEG_FMT_FLAG_DEC_OUTPUT	BIT(0)
+#define MTK_JPEG_FMT_FLAG_DEC_CAPTURE	BIT(1)
+
+#define MTK_JPEG_FMT_TYPE_OUTPUT	1
+#define MTK_JPEG_FMT_TYPE_CAPTURE	2
+
+#define MTK_JPEG_MIN_WIDTH	32
+#define MTK_JPEG_MIN_HEIGHT	32
+#define MTK_JPEG_MAX_WIDTH	8192
+#define MTK_JPEG_MAX_HEIGHT	8192
+
+#define MTK_JPEG_DEFAULT_SIZEIMAGE	(1 * 1024 * 1024)
+
+enum mtk_jpeg_ctx_state {
+	MTK_JPEG_INIT = 0,
+	MTK_JPEG_RUNNING,
+	MTK_JPEG_SOURCE_CHANGE,
+};
+
+/**
+ * struct mt_jpeg - JPEG IP abstraction
+ * @lock:		the mutex protecting this structure
+ * @hw_lock:		spinlock protecting the hw device resource
+ * @workqueue:		decode work queue
+ * @dev:		JPEG device
+ * @v4l2_dev:		v4l2 device for mem2mem mode
+ * @m2m_dev:		v4l2 mem2mem device data
+ * @alloc_ctx:		videobuf2 memory allocator's context
+ * @dec_vdev:		video device node for decoder mem2mem mode
+ * @dec_reg_base:	JPEG registers mapping
+ * @clk_jdec:		JPEG hw working clock
+ * @clk_jdec_smi:	JPEG SMI bus clock
+ * @larb:		SMI device
+ */
+struct mtk_jpeg_dev {
+	struct mutex		lock;
+	spinlock_t		hw_lock;
+	struct workqueue_struct	*workqueue;
+	struct device		*dev;
+	struct v4l2_device	v4l2_dev;
+	struct v4l2_m2m_dev	*m2m_dev;
+	void			*alloc_ctx;
+	struct video_device	*dec_vdev;
+	void __iomem		*dec_reg_base;
+	struct clk		*clk_jdec;
+	struct clk		*clk_jdec_smi;
+	struct device		*larb;
+};
+
+/**
+ * struct jpeg_fmt - driver's internal color format data
+ * @fourcc:	the fourcc code, 0 if not applicable
+ * @h_sample:	horizontal sample count of plane in 4 * 4 pixel image
+ * @v_sample:	vertical sample count of plane in 4 * 4 pixel image
+ * @colplanes:	number of color planes (1 for packed formats)
+ * @h_align:	horizontal alignment order (align to 2^h_align)
+ * @v_align:	vertical alignment order (align to 2^v_align)
+ * @flags:	flags describing format applicability
+ */
+struct mtk_jpeg_fmt {
+	u32	fourcc;
+	int	h_sample[VIDEO_MAX_PLANES];
+	int	v_sample[VIDEO_MAX_PLANES];
+	int	colplanes;
+	int	h_align;
+	int	v_align;
+	u32	flags;
+};
+
+/**
+ * mtk_jpeg_q_data - parameters of one queue
+ * @fmt:	  driver-specific format of this queue
+ * @w:		  image width
+ * @h:		  image height
+ * @bytesperline: distance in bytes between the leftmost pixels in two adjacent
+ *                lines
+ * @sizeimage:	  image buffer size in bytes
+ */
+struct mtk_jpeg_q_data {
+	struct mtk_jpeg_fmt	*fmt;
+	u32			w;
+	u32			h;
+	u32			bytesperline[VIDEO_MAX_PLANES];
+	u32			sizeimage[VIDEO_MAX_PLANES];
+};
+
+/**
+ * mtk_jpeg_ctx - the device context data
+ * @jpeg:		JPEG IP device for this context
+ * @out_q:		source (output) queue information
+ * @cap_q:		destination (capture) queue queue information
+ * @fh:			V4L2 file handle
+ * @dec_param		parameters for HW decoding
+ * @state:		state of the context
+ * @header_valid:	set if header has been parsed and valid
+ * @colorspace: enum v4l2_colorspace; supplemental to pixelformat
+ * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
+ * @quantization: enum v4l2_quantization, colorspace quantization
+ * @xfer_func: enum v4l2_xfer_func, colorspace transfer function
+ */
+struct mtk_jpeg_ctx {
+	struct mtk_jpeg_dev		*jpeg;
+	struct mtk_jpeg_q_data		out_q;
+	struct mtk_jpeg_q_data		cap_q;
+	struct v4l2_fh			fh;
+	enum mtk_jpeg_ctx_state		state;
+
+	enum v4l2_colorspace colorspace;
+	enum v4l2_ycbcr_encoding ycbcr_enc;
+	enum v4l2_quantization quantization;
+	enum v4l2_xfer_func xfer_func;
+};
+
+#endif /* _MTK_JPEG_CORE_H */
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c
new file mode 100644
index 0000000..77b4cc6
--- /dev/null
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c
@@ -0,0 +1,417 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@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/io.h>
+#include <linux/kernel.h>
+#include <media/videobuf2-core.h>
+
+#include "mtk_jpeg_hw.h"
+
+#define MTK_JPEG_DUNUM_MASK(val)	(((val) - 1) & 0x3)
+
+enum mtk_jpeg_color {
+	MTK_JPEG_COLOR_420		= 0x00221111,
+	MTK_JPEG_COLOR_422		= 0x00211111,
+	MTK_JPEG_COLOR_444		= 0x00111111,
+	MTK_JPEG_COLOR_422V		= 0x00121111,
+	MTK_JPEG_COLOR_422X2		= 0x00412121,
+	MTK_JPEG_COLOR_422VX2		= 0x00222121,
+	MTK_JPEG_COLOR_400		= 0x00110000
+};
+
+static inline int mtk_jpeg_verify_align(u32 val, int align, u32 reg)
+{
+	if (val & (align - 1)) {
+		pr_err("mtk-jpeg: write reg %x without %d align\n", reg, align);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int mtk_jpeg_decide_format(struct mtk_jpeg_dec_param *param)
+{
+	param->src_color = (param->sampling_w[0] << 20) |
+			   (param->sampling_h[0] << 16) |
+			   (param->sampling_w[1] << 12) |
+			   (param->sampling_h[1] << 8) |
+			   (param->sampling_w[2] << 4) |
+			   (param->sampling_h[2]);
+
+	param->uv_brz_w = 0;
+	switch (param->src_color) {
+	case MTK_JPEG_COLOR_444:
+		param->uv_brz_w = 1;
+		param->dst_fourcc = V4L2_PIX_FMT_YUV422M;
+		break;
+	case MTK_JPEG_COLOR_422X2:
+	case MTK_JPEG_COLOR_422:
+		param->dst_fourcc = V4L2_PIX_FMT_YUV422M;
+		break;
+	case MTK_JPEG_COLOR_422V:
+	case MTK_JPEG_COLOR_422VX2:
+		param->uv_brz_w = 1;
+		param->dst_fourcc = V4L2_PIX_FMT_YUV420M;
+		break;
+	case MTK_JPEG_COLOR_420:
+		param->dst_fourcc = V4L2_PIX_FMT_YUV420M;
+		break;
+	case MTK_JPEG_COLOR_400:
+		param->dst_fourcc = V4L2_PIX_FMT_GREY;
+		break;
+	default:
+		param->dst_fourcc = 0;
+		return -1;
+	}
+
+	return 0;
+}
+
+static void mtk_jpeg_calc_mcu(struct mtk_jpeg_dec_param *param)
+{
+	u32 factor_w, factor_h;
+	u32 i, comp, blk;
+
+	factor_w = 2 + param->sampling_w[0];
+	factor_h = 2 + param->sampling_h[0];
+	param->mcu_w = (param->pic_w + (1 << factor_w) - 1) >> factor_w;
+	param->mcu_h = (param->pic_h + (1 << factor_h) - 1) >> factor_h;
+	param->total_mcu = param->mcu_w * param->mcu_h;
+	param->unit_num = ((param->pic_w + 7) >> 3) * ((param->pic_h + 7) >> 3);
+	param->blk_num = 0;
+	for (i = 0; i < MTK_JPEG_COMP_MAX; i++) {
+		param->blk_comp[i] = 0;
+		if (i >= param->comp_num)
+			continue;
+		param->blk_comp[i] = param->sampling_w[i] *
+				     param->sampling_h[i];
+		param->blk_num += param->blk_comp[i];
+	}
+
+	param->membership = 0;
+	for (i = 0, blk = 0, comp = 0; i < MTK_JPEG_BLOCK_MAX; i++) {
+		if (i < param->blk_num && comp < param->comp_num) {
+			u32 tmp;
+
+			tmp = (0x04 + (comp & 0x3));
+			param->membership |= tmp << (i * 3);
+			if (++blk == param->blk_comp[comp]) {
+				comp++;
+				blk = 0;
+			}
+		} else {
+			param->membership |=  7 << (i * 3);
+		}
+	}
+}
+
+static void mtk_jpeg_calc_dma_group(struct mtk_jpeg_dec_param *param)
+{
+	u32 factor_mcu = 3;
+
+	if (param->src_color == MTK_JPEG_COLOR_444 &&
+	    param->dst_fourcc == V4L2_PIX_FMT_YUV422M)
+		factor_mcu = 4;
+	else if (param->src_color == MTK_JPEG_COLOR_422V &&
+		 param->dst_fourcc == V4L2_PIX_FMT_YUV420M)
+		factor_mcu = 4;
+	else if (param->src_color == MTK_JPEG_COLOR_422X2 &&
+		 param->dst_fourcc == V4L2_PIX_FMT_YUV422M)
+		factor_mcu = 2;
+	else if (param->src_color == MTK_JPEG_COLOR_400 ||
+		 (param->src_color & 0x0FFFF) == 0)
+		factor_mcu = 4;
+
+	param->dma_mcu = 1 << factor_mcu;
+	param->dma_group = param->mcu_w / param->dma_mcu;
+	param->dma_last_mcu = param->mcu_w % param->dma_mcu;
+	if (param->dma_last_mcu)
+		param->dma_group++;
+	else
+		param->dma_last_mcu = param->dma_mcu;
+}
+
+static int mtk_jpeg_calc_dst_size(struct mtk_jpeg_dec_param *param)
+{
+	u32 i, padding_w;
+	u32 ds_row_h[3];
+	u32 brz_w[3];
+
+	brz_w[0] = 0;
+	brz_w[1] = param->uv_brz_w;
+	brz_w[2] = brz_w[1];
+
+	for (i = 0; i < param->comp_num; i++) {
+		if (brz_w[i] > 3)
+			return -1;
+
+		padding_w = param->mcu_w * MTK_JPEG_DCTSIZE *
+				param->sampling_w[i];
+		/* output format is 420/422 */
+		param->comp_w[i] = padding_w >> brz_w[i];
+		param->comp_w[i] = mtk_jpeg_align(param->comp_w[i],
+						  MTK_JPEG_DCTSIZE);
+		param->img_stride[i] = i ? mtk_jpeg_align(param->comp_w[i], 16)
+					: mtk_jpeg_align(param->comp_w[i], 32);
+		ds_row_h[i] = (MTK_JPEG_DCTSIZE * param->sampling_h[i]);
+	}
+	param->dec_w = param->img_stride[0];
+	param->dec_h = ds_row_h[0] * param->mcu_h;
+
+	for (i = 0; i < MTK_JPEG_COMP_MAX; i++) {
+		/* They must be equal in frame mode. */
+		param->mem_stride[i] = param->img_stride[i];
+		param->comp_size[i] = param->mem_stride[i] * ds_row_h[i] *
+				      param->mcu_h;
+	}
+
+	param->y_size = param->comp_size[0];
+	param->uv_size = param->comp_size[1];
+	param->dec_size = param->y_size + (param->uv_size << 1);
+
+	return 0;
+}
+
+int mtk_jpeg_dec_fill_param(struct mtk_jpeg_dec_param *param)
+{
+	if (mtk_jpeg_decide_format(param))
+		return -1;
+
+	mtk_jpeg_calc_mcu(param);
+	mtk_jpeg_calc_dma_group(param);
+	if (mtk_jpeg_calc_dst_size(param))
+		return -2;
+
+	return 0;
+}
+
+u32 mtk_jpeg_dec_get_int_status(void __iomem *base)
+{
+	u32 ret;
+
+	ret = readl(base + JPGDEC_REG_INTERRUPT_STATUS) & BIT_INQST_MASK_ALLIRQ;
+	if (ret)
+		writel(ret, base + JPGDEC_REG_INTERRUPT_STATUS);
+
+	return ret;
+}
+
+u32 mtk_jpeg_dec_enum_result(u32 irq_result)
+{
+	if (irq_result & BIT_INQST_MASK_EOF)
+		return MTK_JPEG_DEC_RESULT_EOF_DONE;
+	if (irq_result & BIT_INQST_MASK_PAUSE)
+		return MTK_JPEG_DEC_RESULT_PAUSE;
+	if (irq_result & BIT_INQST_MASK_UNDERFLOW)
+		return MTK_JPEG_DEC_RESULT_UNDERFLOW;
+	if (irq_result & BIT_INQST_MASK_OVERFLOW)
+		return MTK_JPEG_DEC_RESULT_OVERFLOW;
+	if (irq_result & BIT_INQST_MASK_ERROR_BS)
+		return MTK_JPEG_DEC_RESULT_ERROR_BS;
+
+	return MTK_JPEG_DEC_RESULT_ERROR_UNKNOWN;
+}
+
+void mtk_jpeg_dec_start(void __iomem *base)
+{
+	writel(0, base + JPGDEC_REG_TRIG);
+}
+
+static void mtk_jpeg_dec_soft_reset(void __iomem *base)
+{
+	writel(0x0000FFFF, base + JPGDEC_REG_INTERRUPT_STATUS);
+	writel(0x00, base + JPGDEC_REG_RESET);
+	writel(0x01, base + JPGDEC_REG_RESET);
+}
+
+static void mtk_jpeg_dec_hard_reset(void __iomem *base)
+{
+	writel(0x00, base + JPGDEC_REG_RESET);
+	writel(0x10, base + JPGDEC_REG_RESET);
+}
+
+void mtk_jpeg_dec_reset(void __iomem *base)
+{
+	mtk_jpeg_dec_soft_reset(base);
+	mtk_jpeg_dec_hard_reset(base);
+}
+
+static void mtk_jpeg_dec_set_brz_factor(void __iomem *base, u8 yscale_w,
+					u8 yscale_h, u8 uvscale_w, u8 uvscale_h)
+{
+	u32 val;
+
+	val = (uvscale_h << 12) | (uvscale_w << 8) |
+	      (yscale_h << 4) | yscale_w;
+	writel(val, base + JPGDEC_REG_BRZ_FACTOR);
+}
+
+static void mtk_jpeg_dec_set_dst_bank0(void __iomem *base, u32 addr_y,
+				       u32 addr_u, u32 addr_v)
+{
+	mtk_jpeg_verify_align(addr_y, 16, JPGDEC_REG_DEST_ADDR0_Y);
+	writel(addr_y, base + JPGDEC_REG_DEST_ADDR0_Y);
+	mtk_jpeg_verify_align(addr_u, 16, JPGDEC_REG_DEST_ADDR0_U);
+	writel(addr_u, base + JPGDEC_REG_DEST_ADDR0_U);
+	mtk_jpeg_verify_align(addr_v, 16, JPGDEC_REG_DEST_ADDR0_V);
+	writel(addr_v, base + JPGDEC_REG_DEST_ADDR0_V);
+}
+
+static void mtk_jpeg_dec_set_dst_bank1(void __iomem *base, u32 addr_y,
+				       u32 addr_u, u32 addr_v)
+{
+	writel(addr_y, base + JPGDEC_REG_DEST_ADDR1_Y);
+	writel(addr_u, base + JPGDEC_REG_DEST_ADDR1_U);
+	writel(addr_v, base + JPGDEC_REG_DEST_ADDR1_V);
+}
+
+static void mtk_jpeg_dec_set_mem_stride(void __iomem *base, u32 stride_y,
+					u32 stride_uv)
+{
+	writel((stride_y & 0xFFFF), base + JPGDEC_REG_STRIDE_Y);
+	writel((stride_uv & 0xFFFF), base + JPGDEC_REG_STRIDE_UV);
+}
+
+static void mtk_jpeg_dec_set_img_stride(void __iomem *base, u32 stride_y,
+					u32 stride_uv)
+{
+	writel((stride_y & 0xFFFF), base + JPGDEC_REG_IMG_STRIDE_Y);
+	writel((stride_uv & 0xFFFF), base + JPGDEC_REG_IMG_STRIDE_UV);
+}
+
+static void mtk_jpeg_dec_set_pause_mcu_idx(void __iomem *base, u32 idx)
+{
+	writel(idx & 0x0003FFFFFF, base + JPGDEC_REG_PAUSE_MCU_NUM);
+}
+
+static void mtk_jpeg_dec_set_dec_mode(void __iomem *base, u32 mode)
+{
+	writel(mode & 0x03, base + JPGDEC_REG_OPERATION_MODE);
+}
+
+static void mtk_jpeg_dec_set_bs_write_ptr(void __iomem *base, u32 ptr)
+{
+	mtk_jpeg_verify_align(ptr, 16, JPGDEC_REG_FILE_BRP);
+	writel(ptr, base + JPGDEC_REG_FILE_BRP);
+}
+
+static void mtk_jpeg_dec_set_bs_info(void __iomem *base, u32 addr, u32 size)
+{
+	mtk_jpeg_verify_align(addr, 16, JPGDEC_REG_FILE_ADDR);
+	mtk_jpeg_verify_align(size, 128, JPGDEC_REG_FILE_TOTAL_SIZE);
+	writel(addr, base + JPGDEC_REG_FILE_ADDR);
+	writel(size, base + JPGDEC_REG_FILE_TOTAL_SIZE);
+}
+
+static void mtk_jpeg_dec_set_comp_id(void __iomem *base, u32 id_y, u32 id_u,
+				     u32 id_v)
+{
+	u32 val;
+
+	val = ((id_y & 0x00FF) << 24) | ((id_u & 0x00FF) << 16) |
+	      ((id_v & 0x00FF) << 8);
+	writel(val, base + JPGDEC_REG_COMP_ID);
+}
+
+static void mtk_jpeg_dec_set_total_mcu(void __iomem *base, u32 num)
+{
+	writel(num - 1, base + JPGDEC_REG_TOTAL_MCU_NUM);
+}
+
+static void mtk_jpeg_dec_set_comp0_du(void __iomem *base, u32 num)
+{
+	writel(num - 1, base + JPGDEC_REG_COMP0_DATA_UNIT_NUM);
+}
+
+static void mtk_jpeg_dec_set_du_membership(void __iomem *base, u32 member,
+					   u32 gmc, u32 isgray)
+{
+	if (isgray)
+		member = 0x3FFFFFFC;
+	member |= (isgray << 31) | (gmc << 30);
+	writel(member, base + JPGDEC_REG_DU_CTRL);
+}
+
+static void mtk_jpeg_dec_set_q_table(void __iomem *base, u32 id0, u32 id1,
+				     u32 id2)
+{
+	u32 val;
+
+	val = ((id0 & 0x0f) << 8) | ((id1 & 0x0f) << 4) | ((id2 & 0x0f) << 0);
+	writel(val, base + JPGDEC_REG_QT_ID);
+}
+
+static void mtk_jpeg_dec_set_dma_group(void __iomem *base, u32 mcu_group,
+				       u32 group_num, u32 last_mcu)
+{
+	u32 val;
+
+	val = (((mcu_group - 1) & 0x00FF) << 16) |
+	      (((group_num - 1) & 0x007F) << 8) |
+	      ((last_mcu - 1) & 0x00FF);
+	writel(val, base + JPGDEC_REG_WDMA_CTRL);
+}
+
+static void mtk_jpeg_dec_set_sampling_factor(void __iomem *base, u32 comp_num,
+					     u32 y_w, u32 y_h, u32 u_w,
+					     u32 u_h, u32 v_w, u32 v_h)
+{
+	u32 val;
+	u32 y_wh = (MTK_JPEG_DUNUM_MASK(y_w) << 2) | MTK_JPEG_DUNUM_MASK(y_h);
+	u32 u_wh = (MTK_JPEG_DUNUM_MASK(u_w) << 2) | MTK_JPEG_DUNUM_MASK(u_h);
+	u32 v_wh = (MTK_JPEG_DUNUM_MASK(v_w) << 2) | MTK_JPEG_DUNUM_MASK(v_h);
+
+	if (comp_num == 1)
+		val = 0;
+	else
+		val = (y_wh << 8) | (u_wh << 4) | v_wh;
+	writel(val, base + JPGDEC_REG_DU_NUM);
+}
+
+void mtk_jpeg_dec_set_config(void __iomem *base,
+			     struct mtk_jpeg_dec_param *config,
+			     struct mtk_jpeg_bs *bs,
+			     struct mtk_jpeg_fb *fb)
+{
+	mtk_jpeg_dec_set_brz_factor(base, 0, 0, config->uv_brz_w, 0);
+	mtk_jpeg_dec_set_dec_mode(base, 0);
+	mtk_jpeg_dec_set_comp0_du(base, config->unit_num);
+	mtk_jpeg_dec_set_total_mcu(base, config->total_mcu);
+	mtk_jpeg_dec_set_bs_info(base, bs->str_addr, bs->size);
+	mtk_jpeg_dec_set_bs_write_ptr(base, bs->end_addr);
+	mtk_jpeg_dec_set_du_membership(base, config->membership, 1,
+				       (config->comp_num == 1) ? 1 : 0);
+	mtk_jpeg_dec_set_comp_id(base, config->comp_id[0], config->comp_id[1],
+				 config->comp_id[2]);
+	mtk_jpeg_dec_set_q_table(base, config->qtbl_num[0],
+				 config->qtbl_num[1], config->qtbl_num[2]);
+	mtk_jpeg_dec_set_sampling_factor(base, config->comp_num,
+					 config->sampling_w[0],
+					 config->sampling_h[0],
+					 config->sampling_w[1],
+					 config->sampling_h[1],
+					 config->sampling_w[2],
+					 config->sampling_h[2]);
+	mtk_jpeg_dec_set_mem_stride(base, config->mem_stride[0],
+				    config->mem_stride[1]);
+	mtk_jpeg_dec_set_img_stride(base, config->img_stride[0],
+				    config->img_stride[1]);
+	mtk_jpeg_dec_set_dst_bank0(base, fb->plane_addr[0],
+				   fb->plane_addr[1], fb->plane_addr[2]);
+	mtk_jpeg_dec_set_dst_bank1(base, 0, 0, 0);
+	mtk_jpeg_dec_set_dma_group(base, config->dma_mcu, config->dma_group,
+				   config->dma_last_mcu);
+	mtk_jpeg_dec_set_pause_mcu_idx(base, config->total_mcu);
+}
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h
new file mode 100644
index 0000000..37152a6
--- /dev/null
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@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_JPEG_HW_H
+#define _MTK_JPEG_HW_H
+
+#include <media/videobuf2-core.h>
+
+#include "mtk_jpeg_core.h"
+#include "mtk_jpeg_reg.h"
+
+enum {
+	MTK_JPEG_DEC_RESULT_EOF_DONE		= 0,
+	MTK_JPEG_DEC_RESULT_PAUSE		= 1,
+	MTK_JPEG_DEC_RESULT_UNDERFLOW		= 2,
+	MTK_JPEG_DEC_RESULT_OVERFLOW		= 3,
+	MTK_JPEG_DEC_RESULT_ERROR_BS		= 4,
+	MTK_JPEG_DEC_RESULT_ERROR_UNKNOWN	= 6
+};
+
+struct mtk_jpeg_dec_param {
+	u32 pic_w;
+	u32 pic_h;
+	u32 dec_w;
+	u32 dec_h;
+	u32 src_color;
+	u32 dst_fourcc;
+	u32 mcu_w;
+	u32 mcu_h;
+	u32 total_mcu;
+	u32 unit_num;
+	u32 comp_num;
+	u32 comp_id[MTK_JPEG_COMP_MAX];
+	u32 sampling_w[MTK_JPEG_COMP_MAX];
+	u32 sampling_h[MTK_JPEG_COMP_MAX];
+	u32 qtbl_num[MTK_JPEG_COMP_MAX];
+	u32 blk_num;
+	u32 blk_comp[MTK_JPEG_COMP_MAX];
+	u32 membership;
+	u32 dma_mcu;
+	u32 dma_group;
+	u32 dma_last_mcu;
+	u32 img_stride[MTK_JPEG_COMP_MAX];
+	u32 mem_stride[MTK_JPEG_COMP_MAX];
+	u32 comp_w[MTK_JPEG_COMP_MAX];
+	u32 comp_size[MTK_JPEG_COMP_MAX];
+	u32 y_size;
+	u32 uv_size;
+	u32 dec_size;
+	u8 uv_brz_w;
+};
+
+static inline u32 mtk_jpeg_align(u32 val, u32 align)
+{
+	return (val + align - 1) & ~(align - 1);
+}
+
+struct mtk_jpeg_bs {
+	dma_addr_t	str_addr;
+	dma_addr_t	end_addr;
+	size_t		size;
+};
+
+struct mtk_jpeg_fb {
+	dma_addr_t	plane_addr[MTK_JPEG_COMP_MAX];
+	size_t		size;
+};
+
+int mtk_jpeg_dec_fill_param(struct mtk_jpeg_dec_param *param);
+u32 mtk_jpeg_dec_get_int_status(void __iomem *dec_reg_base);
+u32 mtk_jpeg_dec_enum_result(u32 irq_result);
+void mtk_jpeg_dec_set_config(void __iomem *base,
+			     struct mtk_jpeg_dec_param *config,
+			     struct mtk_jpeg_bs *bs,
+			     struct mtk_jpeg_fb *fb);
+void mtk_jpeg_dec_reset(void __iomem *dec_reg_base);
+void mtk_jpeg_dec_start(void __iomem *dec_reg_base);
+
+#endif /* _MTK_JPEG_HW_H */
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c
new file mode 100644
index 0000000..3886854
--- /dev/null
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c
@@ -0,0 +1,160 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@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/kernel.h>
+#include <linux/videodev2.h>
+
+#include "mtk_jpeg_parse.h"
+
+#define TEM	0x01
+#define SOF0	0xc0
+#define RST	0xd0
+#define SOI	0xd8
+#define EOI	0xd9
+
+struct mtk_jpeg_stream {
+	u8 *addr;
+	u32 size;
+	u32 curr;
+};
+
+static int read_byte(struct mtk_jpeg_stream *stream)
+{
+	if (stream->curr >= stream->size)
+		return -1;
+	return stream->addr[stream->curr++];
+}
+
+static int read_word_be(struct mtk_jpeg_stream *stream, u32 *word)
+{
+	u32 temp;
+	int byte;
+
+	byte = read_byte(stream);
+	if (byte == -1)
+		return -1;
+	temp = byte << 8;
+	byte = read_byte(stream);
+	if (byte == -1)
+		return -1;
+	*word = (u32)byte | temp;
+
+	return 0;
+}
+
+static void read_skip(struct mtk_jpeg_stream *stream, long len)
+{
+	if (len <= 0)
+		return;
+	while (len--)
+		read_byte(stream);
+}
+
+static bool mtk_jpeg_do_parse(struct mtk_jpeg_dec_param *param, u8 *src_addr_va,
+			      u32 src_size)
+{
+	bool notfound = true;
+	struct mtk_jpeg_stream stream;
+
+	stream.addr = src_addr_va;
+	stream.size = src_size;
+	stream.curr = 0;
+
+	while (notfound) {
+		int i, length, byte;
+		u32 word;
+
+		byte = read_byte(&stream);
+		if (byte == -1)
+			return false;
+		if (byte != 0xff)
+			continue;
+		do
+			byte = read_byte(&stream);
+		while (byte == 0xff);
+		if (byte == -1)
+			return false;
+		if (byte == 0)
+			continue;
+
+		length = 0;
+		switch (byte) {
+		case SOF0:
+			/* length */
+			if (read_word_be(&stream, &word))
+				break;
+
+			/* precision */
+			if (read_byte(&stream) == -1)
+				break;
+
+			if (read_word_be(&stream, &word))
+				break;
+			param->pic_h = word;
+
+			if (read_word_be(&stream, &word))
+				break;
+			param->pic_w = word;
+
+			param->comp_num = read_byte(&stream);
+			if (param->comp_num != 1 && param->comp_num != 3)
+				break;
+
+			for (i = 0; i < param->comp_num; i++) {
+				param->comp_id[i] = read_byte(&stream);
+				if (param->comp_id[i] == -1)
+					break;
+
+				/* sampling */
+				byte = read_byte(&stream);
+				if (byte == -1)
+					break;
+				param->sampling_w[i] = (byte >> 4) & 0x0F;
+				param->sampling_h[i] = byte & 0x0F;
+
+				param->qtbl_num[i] = read_byte(&stream);
+				if (param->qtbl_num[i] == -1)
+					break;
+			}
+
+			notfound = !(i == param->comp_num);
+			break;
+		case RST ... RST + 7:
+		case SOI:
+		case EOI:
+		case TEM:
+			break;
+		default:
+			if (read_word_be(&stream, &word))
+				break;
+			length = (long)word - 2;
+			read_skip(&stream, length);
+			break;
+		}
+	}
+
+	return !notfound;
+}
+
+bool mtk_jpeg_parse(struct mtk_jpeg_dec_param *param, u8 *src_addr_va,
+		    u32 src_size)
+{
+	if (!mtk_jpeg_do_parse(param, src_addr_va, src_size))
+		return false;
+	if (mtk_jpeg_dec_fill_param(param))
+		return false;
+
+	return true;
+}
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h
new file mode 100644
index 0000000..5d92340
--- /dev/null
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@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_JPEG_PARSE_H
+#define _MTK_JPEG_PARSE_H
+
+#include "mtk_jpeg_hw.h"
+
+bool mtk_jpeg_parse(struct mtk_jpeg_dec_param *param, u8 *src_addr_va,
+		    u32 src_size);
+
+#endif /* _MTK_JPEG_PARSE_H */
+
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h
new file mode 100644
index 0000000..fc490d6
--- /dev/null
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
+ *         Rick Chang <rick.chang@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_JPEG_REG_H
+#define _MTK_JPEG_REG_H
+
+#define MTK_JPEG_COMP_MAX		3
+#define MTK_JPEG_BLOCK_MAX		10
+#define MTK_JPEG_DCTSIZE		8
+
+#define BIT_INQST_MASK_ERROR_BS		0x20
+#define BIT_INQST_MASK_PAUSE		0x10
+#define BIT_INQST_MASK_OVERFLOW		0x04
+#define BIT_INQST_MASK_UNDERFLOW	0x02
+#define BIT_INQST_MASK_EOF		0x01
+#define BIT_INQST_MASK_ALLIRQ		0x37
+
+#define JPGDEC_REG_RESET		0x0090
+#define JPGDEC_REG_BRZ_FACTOR		0x00F8
+#define JPGDEC_REG_DU_NUM		0x00FC
+#define JPGDEC_REG_DEST_ADDR0_Y		0x0140
+#define JPGDEC_REG_DEST_ADDR0_U		0x0144
+#define JPGDEC_REG_DEST_ADDR0_V		0x0148
+#define JPGDEC_REG_DEST_ADDR1_Y		0x014C
+#define JPGDEC_REG_DEST_ADDR1_U		0x0150
+#define JPGDEC_REG_DEST_ADDR1_V		0x0154
+#define JPGDEC_REG_STRIDE_Y		0x0158
+#define JPGDEC_REG_STRIDE_UV		0x015C
+#define JPGDEC_REG_IMG_STRIDE_Y		0x0160
+#define JPGDEC_REG_IMG_STRIDE_UV	0x0164
+#define JPGDEC_REG_WDMA_CTRL		0x016C
+#define JPGDEC_REG_PAUSE_MCU_NUM	0x0170
+#define JPGDEC_REG_OPERATION_MODE	0x017C
+#define JPGDEC_REG_FILE_ADDR		0x0200
+#define JPGDEC_REG_COMP_ID		0x020C
+#define JPGDEC_REG_TOTAL_MCU_NUM	0x0210
+#define JPGDEC_REG_COMP0_DATA_UNIT_NUM	0x0224
+#define JPGDEC_REG_DU_CTRL		0x023C
+#define JPGDEC_REG_TRIG			0x0240
+#define JPGDEC_REG_FILE_BRP		0x0248
+#define JPGDEC_REG_FILE_TOTAL_SIZE	0x024C
+#define JPGDEC_REG_QT_ID		0x0270
+#define JPGDEC_REG_INTERRUPT_STATUS	0x0274
+#define JPGDEC_REG_STATUS		0x0278
+
+#endif /* _MTK_JPEG_REG_H */
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread

* [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2016-11-17  3:38 [PATCH v6 0/3] Add Mediatek JPEG Decoder Rick Chang
  2016-11-17  3:38 ` [PATCH v6 1/3] dt-bindings: mediatek: Add a binding for " Rick Chang
  2016-11-17  3:38 ` [PATCH v6 2/3] vcodec: mediatek: Add Mediatek JPEG Decoder Driver Rick Chang
@ 2016-11-17  3:38 ` Rick Chang
  2016-11-21 14:51   ` Hans Verkuil
  2016-11-21 14:53 ` [PATCH v6 0/3] Add " Hans Verkuil
  3 siblings, 1 reply; 19+ messages in thread
From: Rick Chang @ 2016-11-17  3:38 UTC (permalink / raw)
  To: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring
  Cc: linux-kernel, linux-media, srv_heupstream, linux-mediatek,
	linux-arm-kernel, devicetree, Minghsiu Tsai, Rick Chang

Signed-off-by: Rick Chang <rick.chang@mediatek.com>
Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
---
This patch depends on: 
  CCF "Add clock support for Mediatek MT2701"[1]
  iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]

[1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
[2] https://patchwork.kernel.org/patch/9164013/
---
 arch/arm/boot/dts/mt2701.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi
index 8f13c70..4dd5048 100644
--- a/arch/arm/boot/dts/mt2701.dtsi
+++ b/arch/arm/boot/dts/mt2701.dtsi
@@ -298,6 +298,20 @@
 		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
 	};
 
+	jpegdec: jpegdec@15004000 {
+		compatible = "mediatek,mt2701-jpgdec";
+		reg = <0 0x15004000 0 0x1000>;
+		interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_LOW>;
+		clocks =  <&imgsys CLK_IMG_JPGDEC_SMI>,
+			  <&imgsys CLK_IMG_JPGDEC>;
+		clock-names = "jpgdec-smi",
+			      "jpgdec";
+		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
+		mediatek,larb = <&larb2>;
+		iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>,
+			 <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>;
+	};
+
 	vdecsys: syscon@16000000 {
 		compatible = "mediatek,mt2701-vdecsys", "syscon";
 		reg = <0 0x16000000 0 0x1000>;
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2016-11-17  3:38 ` [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder Rick Chang
@ 2016-11-21 14:51   ` Hans Verkuil
  2016-11-22  3:21     ` Rick Chang
  0 siblings, 1 reply; 19+ messages in thread
From: Hans Verkuil @ 2016-11-21 14:51 UTC (permalink / raw)
  To: Rick Chang, Hans Verkuil, Laurent Pinchart,
	Mauro Carvalho Chehab, Matthias Brugger, Rob Herring
  Cc: linux-kernel, linux-media, srv_heupstream, linux-mediatek,
	linux-arm-kernel, devicetree, Minghsiu Tsai

On 17/11/16 04:38, Rick Chang wrote:
> Signed-off-by: Rick Chang <rick.chang@mediatek.com>
> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
> ---
> This patch depends on:
>   CCF "Add clock support for Mediatek MT2701"[1]
>   iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]
>
> [1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
> [2] https://patchwork.kernel.org/patch/9164013/

I assume that 1 & 2 will appear in 4.10? So this patch needs to go in 
after the
other two are merged in 4.10?

Regards,

	Hans

> ---
>  arch/arm/boot/dts/mt2701.dtsi | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
>
> diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi
> index 8f13c70..4dd5048 100644
> --- a/arch/arm/boot/dts/mt2701.dtsi
> +++ b/arch/arm/boot/dts/mt2701.dtsi
> @@ -298,6 +298,20 @@
>  		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
>  	};
>
> +	jpegdec: jpegdec@15004000 {
> +		compatible = "mediatek,mt2701-jpgdec";
> +		reg = <0 0x15004000 0 0x1000>;
> +		interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_LOW>;
> +		clocks =  <&imgsys CLK_IMG_JPGDEC_SMI>,
> +			  <&imgsys CLK_IMG_JPGDEC>;
> +		clock-names = "jpgdec-smi",
> +			      "jpgdec";
> +		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
> +		mediatek,larb = <&larb2>;
> +		iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>,
> +			 <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>;
> +	};
> +
>  	vdecsys: syscon@16000000 {
>  		compatible = "mediatek,mt2701-vdecsys", "syscon";
>  		reg = <0 0x16000000 0 0x1000>;
>

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 0/3] Add Mediatek JPEG Decoder
  2016-11-17  3:38 [PATCH v6 0/3] Add Mediatek JPEG Decoder Rick Chang
                   ` (2 preceding siblings ...)
  2016-11-17  3:38 ` [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder Rick Chang
@ 2016-11-21 14:53 ` Hans Verkuil
  2016-11-22  3:12   ` Rick Chang
  3 siblings, 1 reply; 19+ messages in thread
From: Hans Verkuil @ 2016-11-21 14:53 UTC (permalink / raw)
  To: Rick Chang, Hans Verkuil, Laurent Pinchart,
	Mauro Carvalho Chehab, Matthias Brugger, Rob Herring
  Cc: linux-kernel, linux-media, srv_heupstream, linux-mediatek,
	linux-arm-kernel, devicetree, Minghsiu Tsai

I'm missing a MAINTAINERS patch for this new driver.

Can you post a patch for that?

It's the only thing preventing this from being merged.

Regards,

	Hans

On 17/11/16 04:38, Rick Chang wrote:
> This series of patches provide a v4l2 driver to control Mediatek JPEG decoder
> for decoding JPEG image and Motion JPEG bitstream.
>
> changes since v5:
> - remove redundant name from struct mtk_jpeg_fmt
> - Set state of all buffers to VB2_BUF_STATE_QUEUED if fail in start streaming
> - Remove VB2_USERPTR
> - Add check for buffer index
>
> changes since v4:
> - Change file name of binding documentation
> - Revise DT binding documentation
> - Revise compatible string
>
> changes since v3:
> - Revise DT binding documentation
> - Revise compatible string
>
> changes since v2:
> - Revise DT binding documentation
>
> changes since v1:
> - Rebase for v4.9-rc1.
> - Update Compliance test version and result
> - Remove redundant path in Makefile
> - Fix potential build error without CONFIG_PM_RUNTIME and CONFIG_PM_SLEEP
> - Fix warnings from patch check and smatch check
>
> * Dependency
> The patch "arm: dts: mt2701: Add node for JPEG decoder" depends on:
>   CCF "Add clock support for Mediatek MT2701"[1]
>   iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]
>
> [1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
> [2] https://patchwork.kernel.org/patch/9164013/
>
> * Compliance test
> v4l2-compliance SHA   : 4ad7174b908a36c4f315e3fe2efa7e2f8a6f375a
>
> Driver Info:
>         Driver name   : mtk-jpeg decode
>         Card type     : mtk-jpeg decoder
>         Bus info      : platform:15004000.jpegdec
>         Driver version: 4.9.0
>         Capabilities  : 0x84204000
>                 Video Memory-to-Memory Multiplanar
>                 Streaming
>                 Extended Pix Format
>                 Device Capabilities
>         Device Caps   : 0x04204000
>                 Video Memory-to-Memory Multiplanar
>                 Streaming
>                 Extended Pix Format
>
> Compliance test for device /dev/video3 (not using libv4l2):
>
> Required ioctls:
>         test VIDIOC_QUERYCAP: OK
>
> Allow for multiple opens:
>         test second video open: OK
>         test VIDIOC_QUERYCAP: OK
>         test VIDIOC_G/S_PRIORITY: OK
>         test for unlimited opens: OK
>
> Debug ioctls:
>         test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
>         test VIDIOC_LOG_STATUS: OK (Not Supported)
>
> Input ioctls:
>         test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
>         test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
>         test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
>         test VIDIOC_ENUMAUDIO: OK (Not Supported)
>         test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
>         test VIDIOC_G/S_AUDIO: OK (Not Supported)
>         Inputs: 0 Audio Inputs: 0 Tuners: 0
>
> Output ioctls:
>         test VIDIOC_G/S_MODULATOR: OK (Not Supported)
>         test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
>         test VIDIOC_ENUMAUDOUT: OK (Not Supported)
>         test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
>         test VIDIOC_G/S_AUDOUT: OK (Not Supported)
>         Outputs: 0 Audio Outputs: 0 Modulators: 0
>
> Input/Output configuration ioctls:
>         test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
>         test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
>         test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
>         test VIDIOC_G/S_EDID: OK (Not Supported)
>
>         Control ioctls:
>                 test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK (Not Supported)
>                 test VIDIOC_QUERYCTRL: OK (Not Supported)
>                 test VIDIOC_G/S_CTRL: OK (Not Supported)
>                 test VIDIOC_G/S/TRY_EXT_CTRLS: OK (Not Supported)
>                 test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK (Not Supported)
>                 test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
>                 Standard Controls: 0 Private Controls: 0
>
>         Format ioctls:
>                 test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
>                 test VIDIOC_G/S_PARM: OK (Not Supported)
>                 test VIDIOC_G_FBUF: OK (Not Supported)
>                 test VIDIOC_G_FMT: OK
>                 test VIDIOC_TRY_FMT: OK
>                 test VIDIOC_S_FMT: OK
>                 test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
>                 test Cropping: OK (Not Supported)
>                 test Composing: OK
>                 test Scaling: OK
>
>         Codec ioctls:
>                 test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
>                 test VIDIOC_G_ENC_INDEX: OK (Not Supported)
>                 test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
>
>         Buffer ioctls:
>                 test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
>                 test VIDIOC_EXPBUF: OK
>
> Test input 0:
>
>
> Total: 43, Succeeded: 43, Failed: 0, Warnings: 0
>
> Rick Chang (3):
>   dt-bindings: mediatek: Add a binding for Mediatek JPEG Decoder
>   vcodec: mediatek: Add Mediatek JPEG Decoder Driver
>   arm: dts: mt2701: Add node for Mediatek JPEG Decoder
>
>  .../bindings/media/mediatek-jpeg-decoder.txt       |   37 +
>  arch/arm/boot/dts/mt2701.dtsi                      |   14 +
>  drivers/media/platform/Kconfig                     |   15 +
>  drivers/media/platform/Makefile                    |    2 +
>  drivers/media/platform/mtk-jpeg/Makefile           |    2 +
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c    | 1303 ++++++++++++++++++++
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h    |  139 +++
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c      |  417 +++++++
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h      |   91 ++
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c   |  160 +++
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h   |   25 +
>  drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h     |   58 +
>  12 files changed, 2263 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt
>  create mode 100644 drivers/media/platform/mtk-jpeg/Makefile
>  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
>  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
>  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c
>  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h
>  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c
>  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h
>  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h
>

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 0/3] Add Mediatek JPEG Decoder
  2016-11-21 14:53 ` [PATCH v6 0/3] Add " Hans Verkuil
@ 2016-11-22  3:12   ` Rick Chang
  0 siblings, 0 replies; 19+ messages in thread
From: Rick Chang @ 2016-11-22  3:12 UTC (permalink / raw)
  To: Hans Verkuil
  Cc: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring, linux-kernel, linux-media,
	srv_heupstream, linux-mediatek, linux-arm-kernel, devicetree,
	Minghsiu Tsai

Hi Hans,

Ok, I will include it in patch v7.

On Mon, 2016-11-21 at 15:53 +0100, Hans Verkuil wrote:
> I'm missing a MAINTAINERS patch for this new driver.
> 
> Can you post a patch for that?
> 
> It's the only thing preventing this from being merged.
> 
> Regards,
> 
> 	Hans
> 
> On 17/11/16 04:38, Rick Chang wrote:
> > This series of patches provide a v4l2 driver to control Mediatek JPEG decoder
> > for decoding JPEG image and Motion JPEG bitstream.
> >
> > changes since v5:
> > - remove redundant name from struct mtk_jpeg_fmt
> > - Set state of all buffers to VB2_BUF_STATE_QUEUED if fail in start streaming
> > - Remove VB2_USERPTR
> > - Add check for buffer index
> >
> > changes since v4:
> > - Change file name of binding documentation
> > - Revise DT binding documentation
> > - Revise compatible string
> >
> > changes since v3:
> > - Revise DT binding documentation
> > - Revise compatible string
> >
> > changes since v2:
> > - Revise DT binding documentation
> >
> > changes since v1:
> > - Rebase for v4.9-rc1.
> > - Update Compliance test version and result
> > - Remove redundant path in Makefile
> > - Fix potential build error without CONFIG_PM_RUNTIME and CONFIG_PM_SLEEP
> > - Fix warnings from patch check and smatch check
> >
> > * Dependency
> > The patch "arm: dts: mt2701: Add node for JPEG decoder" depends on:
> >   CCF "Add clock support for Mediatek MT2701"[1]
> >   iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]
> >
> > [1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
> > [2] https://patchwork.kernel.org/patch/9164013/
> >
> > * Compliance test
> > v4l2-compliance SHA   : 4ad7174b908a36c4f315e3fe2efa7e2f8a6f375a
> >
> > Driver Info:
> >         Driver name   : mtk-jpeg decode
> >         Card type     : mtk-jpeg decoder
> >         Bus info      : platform:15004000.jpegdec
> >         Driver version: 4.9.0
> >         Capabilities  : 0x84204000
> >                 Video Memory-to-Memory Multiplanar
> >                 Streaming
> >                 Extended Pix Format
> >                 Device Capabilities
> >         Device Caps   : 0x04204000
> >                 Video Memory-to-Memory Multiplanar
> >                 Streaming
> >                 Extended Pix Format
> >
> > Compliance test for device /dev/video3 (not using libv4l2):
> >
> > Required ioctls:
> >         test VIDIOC_QUERYCAP: OK
> >
> > Allow for multiple opens:
> >         test second video open: OK
> >         test VIDIOC_QUERYCAP: OK
> >         test VIDIOC_G/S_PRIORITY: OK
> >         test for unlimited opens: OK
> >
> > Debug ioctls:
> >         test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
> >         test VIDIOC_LOG_STATUS: OK (Not Supported)
> >
> > Input ioctls:
> >         test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
> >         test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
> >         test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
> >         test VIDIOC_ENUMAUDIO: OK (Not Supported)
> >         test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
> >         test VIDIOC_G/S_AUDIO: OK (Not Supported)
> >         Inputs: 0 Audio Inputs: 0 Tuners: 0
> >
> > Output ioctls:
> >         test VIDIOC_G/S_MODULATOR: OK (Not Supported)
> >         test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
> >         test VIDIOC_ENUMAUDOUT: OK (Not Supported)
> >         test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
> >         test VIDIOC_G/S_AUDOUT: OK (Not Supported)
> >         Outputs: 0 Audio Outputs: 0 Modulators: 0
> >
> > Input/Output configuration ioctls:
> >         test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
> >         test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
> >         test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
> >         test VIDIOC_G/S_EDID: OK (Not Supported)
> >
> >         Control ioctls:
> >                 test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK (Not Supported)
> >                 test VIDIOC_QUERYCTRL: OK (Not Supported)
> >                 test VIDIOC_G/S_CTRL: OK (Not Supported)
> >                 test VIDIOC_G/S/TRY_EXT_CTRLS: OK (Not Supported)
> >                 test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK (Not Supported)
> >                 test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
> >                 Standard Controls: 0 Private Controls: 0
> >
> >         Format ioctls:
> >                 test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
> >                 test VIDIOC_G/S_PARM: OK (Not Supported)
> >                 test VIDIOC_G_FBUF: OK (Not Supported)
> >                 test VIDIOC_G_FMT: OK
> >                 test VIDIOC_TRY_FMT: OK
> >                 test VIDIOC_S_FMT: OK
> >                 test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
> >                 test Cropping: OK (Not Supported)
> >                 test Composing: OK
> >                 test Scaling: OK
> >
> >         Codec ioctls:
> >                 test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
> >                 test VIDIOC_G_ENC_INDEX: OK (Not Supported)
> >                 test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
> >
> >         Buffer ioctls:
> >                 test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
> >                 test VIDIOC_EXPBUF: OK
> >
> > Test input 0:
> >
> >
> > Total: 43, Succeeded: 43, Failed: 0, Warnings: 0
> >
> > Rick Chang (3):
> >   dt-bindings: mediatek: Add a binding for Mediatek JPEG Decoder
> >   vcodec: mediatek: Add Mediatek JPEG Decoder Driver
> >   arm: dts: mt2701: Add node for Mediatek JPEG Decoder
> >
> >  .../bindings/media/mediatek-jpeg-decoder.txt       |   37 +
> >  arch/arm/boot/dts/mt2701.dtsi                      |   14 +
> >  drivers/media/platform/Kconfig                     |   15 +
> >  drivers/media/platform/Makefile                    |    2 +
> >  drivers/media/platform/mtk-jpeg/Makefile           |    2 +
> >  drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c    | 1303 ++++++++++++++++++++
> >  drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h    |  139 +++
> >  drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c      |  417 +++++++
> >  drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h      |   91 ++
> >  drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c   |  160 +++
> >  drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h   |   25 +
> >  drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h     |   58 +
> >  12 files changed, 2263 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt
> >  create mode 100644 drivers/media/platform/mtk-jpeg/Makefile
> >  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
> >  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
> >  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.c
> >  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_hw.h
> >  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.c
> >  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_parse.h
> >  create mode 100644 drivers/media/platform/mtk-jpeg/mtk_jpeg_reg.h
> >

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2016-11-21 14:51   ` Hans Verkuil
@ 2016-11-22  3:21     ` Rick Chang
  2016-11-22 12:43       ` Hans Verkuil
  0 siblings, 1 reply; 19+ messages in thread
From: Rick Chang @ 2016-11-22  3:21 UTC (permalink / raw)
  To: Hans Verkuil
  Cc: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring, linux-kernel, linux-media,
	srv_heupstream, linux-mediatek, linux-arm-kernel, devicetree,
	Minghsiu Tsai

Hi Hans,

On Mon, 2016-11-21 at 15:51 +0100, Hans Verkuil wrote:
> On 17/11/16 04:38, Rick Chang wrote:
> > Signed-off-by: Rick Chang <rick.chang@mediatek.com>
> > Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
> > ---
> > This patch depends on:
> >   CCF "Add clock support for Mediatek MT2701"[1]
> >   iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]
> >
> > [1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
> > [2] https://patchwork.kernel.org/patch/9164013/
> 
> I assume that 1 & 2 will appear in 4.10? So this patch needs to go in 
> after the
> other two are merged in 4.10?
> 
> Regards,
> 
> 	Hans

[1] will appear in 4.10, but [2] will appear latter than 4.10.So this
patch needs to go in after [1] & [2] will be merged in 4.11.

> > ---
> >  arch/arm/boot/dts/mt2701.dtsi | 14 ++++++++++++++
> >  1 file changed, 14 insertions(+)
> >
> > diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi
> > index 8f13c70..4dd5048 100644
> > --- a/arch/arm/boot/dts/mt2701.dtsi
> > +++ b/arch/arm/boot/dts/mt2701.dtsi
> > @@ -298,6 +298,20 @@
> >  		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
> >  	};
> >
> > +	jpegdec: jpegdec@15004000 {
> > +		compatible = "mediatek,mt2701-jpgdec";
> > +		reg = <0 0x15004000 0 0x1000>;
> > +		interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_LOW>;
> > +		clocks =  <&imgsys CLK_IMG_JPGDEC_SMI>,
> > +			  <&imgsys CLK_IMG_JPGDEC>;
> > +		clock-names = "jpgdec-smi",
> > +			      "jpgdec";
> > +		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
> > +		mediatek,larb = <&larb2>;
> > +		iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>,
> > +			 <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>;
> > +	};
> > +
> >  	vdecsys: syscon@16000000 {
> >  		compatible = "mediatek,mt2701-vdecsys", "syscon";
> >  		reg = <0 0x16000000 0 0x1000>;
> >

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2016-11-22  3:21     ` Rick Chang
@ 2016-11-22 12:43       ` Hans Verkuil
  2016-11-23  1:54         ` Rick Chang
  0 siblings, 1 reply; 19+ messages in thread
From: Hans Verkuil @ 2016-11-22 12:43 UTC (permalink / raw)
  To: Rick Chang
  Cc: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring, linux-kernel, linux-media,
	srv_heupstream, linux-mediatek, linux-arm-kernel, devicetree,
	Minghsiu Tsai

On 22/11/16 04:21, Rick Chang wrote:
> Hi Hans,
>
> On Mon, 2016-11-21 at 15:51 +0100, Hans Verkuil wrote:
>> On 17/11/16 04:38, Rick Chang wrote:
>>> Signed-off-by: Rick Chang <rick.chang@mediatek.com>
>>> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
>>> ---
>>> This patch depends on:
>>>   CCF "Add clock support for Mediatek MT2701"[1]
>>>   iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]
>>>
>>> [1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
>>> [2] https://patchwork.kernel.org/patch/9164013/
>>
>> I assume that 1 & 2 will appear in 4.10? So this patch needs to go in
>> after the
>> other two are merged in 4.10?
>>
>> Regards,
>>
>> 	Hans
>
> [1] will appear in 4.10, but [2] will appear latter than 4.10.So this
> patch needs to go in after [1] & [2] will be merged in 4.11.

So what should I do? Merge the driver for 4.11 and wait with this patch
until [2] is merged in 4.11? Does that sound reasonable?

Regards,

	Hans

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2016-11-22 12:43       ` Hans Verkuil
@ 2016-11-23  1:54         ` Rick Chang
  2016-11-23  9:43           ` Rick Chang
  0 siblings, 1 reply; 19+ messages in thread
From: Rick Chang @ 2016-11-23  1:54 UTC (permalink / raw)
  To: Hans Verkuil
  Cc: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring, linux-kernel, linux-media,
	srv_heupstream, linux-mediatek, linux-arm-kernel, devicetree,
	Minghsiu Tsai

Hi Hans,

On Tue, 2016-11-22 at 13:43 +0100, Hans Verkuil wrote:
> On 22/11/16 04:21, Rick Chang wrote:
> > Hi Hans,
> >
> > On Mon, 2016-11-21 at 15:51 +0100, Hans Verkuil wrote:
> >> On 17/11/16 04:38, Rick Chang wrote:
> >>> Signed-off-by: Rick Chang <rick.chang@mediatek.com>
> >>> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
> >>> ---
> >>> This patch depends on:
> >>>   CCF "Add clock support for Mediatek MT2701"[1]
> >>>   iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]
> >>>
> >>> [1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
> >>> [2] https://patchwork.kernel.org/patch/9164013/
> >>
> >> I assume that 1 & 2 will appear in 4.10? So this patch needs to go in
> >> after the
> >> other two are merged in 4.10?
> >>
> >> Regards,
> >>
> >> 	Hans
> >
> > [1] will appear in 4.10, but [2] will appear latter than 4.10.So this
> > patch needs to go in after [1] & [2] will be merged in 4.11.
> 
> So what should I do? Merge the driver for 4.11 and wait with this patch
> until [2] is merged in 4.11? Does that sound reasonable?
> 
> Regards,
> 
> 	Hans

What do you think about this? You merge the driver first and I send this
patch again after [1] & [2] is merged.

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2016-11-23  1:54         ` Rick Chang
@ 2016-11-23  9:43           ` Rick Chang
  2017-01-06  2:34             ` Rick Chang
  0 siblings, 1 reply; 19+ messages in thread
From: Rick Chang @ 2016-11-23  9:43 UTC (permalink / raw)
  To: Hans Verkuil
  Cc: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring, linux-kernel, linux-media,
	srv_heupstream, linux-mediatek, linux-arm-kernel, devicetree,
	Minghsiu Tsai

On Wed, 2016-11-23 at 09:54 +0800, Rick Chang wrote:
> Hi Hans,
> 
> On Tue, 2016-11-22 at 13:43 +0100, Hans Verkuil wrote:
> > On 22/11/16 04:21, Rick Chang wrote:
> > > Hi Hans,
> > >
> > > On Mon, 2016-11-21 at 15:51 +0100, Hans Verkuil wrote:
> > >> On 17/11/16 04:38, Rick Chang wrote:
> > >>> Signed-off-by: Rick Chang <rick.chang@mediatek.com>
> > >>> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
> > >>> ---
> > >>> This patch depends on:
> > >>>   CCF "Add clock support for Mediatek MT2701"[1]
> > >>>   iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]
> > >>>
> > >>> [1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
> > >>> [2] https://patchwork.kernel.org/patch/9164013/
> > >>
> > >> I assume that 1 & 2 will appear in 4.10? So this patch needs to go in
> > >> after the
> > >> other two are merged in 4.10?
> > >>
> > >> Regards,
> > >>
> > >> 	Hans
> > >
> > > [1] will appear in 4.10, but [2] will appear latter than 4.10.So this
> > > patch needs to go in after [1] & [2] will be merged in 4.11.
> > 
> > So what should I do? Merge the driver for 4.11 and wait with this patch
> > until [2] is merged in 4.11? Does that sound reasonable?
> > 
> > Regards,
> > 
> > 	Hans
> 
> What do you think about this? You merge the driver first and I send this
> patch again after [1] & [2] is merged.

BTW, to prevent merging conflict, the dtsi should be merged by mediatek
SoC maintainer, Matthias.I think we can only take care on the driver
part at this moment.

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2016-11-23  9:43           ` Rick Chang
@ 2017-01-06  2:34             ` Rick Chang
  2017-01-09 11:29               ` Hans Verkuil
  0 siblings, 1 reply; 19+ messages in thread
From: Rick Chang @ 2017-01-06  2:34 UTC (permalink / raw)
  To: Hans Verkuil
  Cc: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring, linux-kernel, linux-media,
	srv_heupstream, linux-mediatek, linux-arm-kernel, devicetree,
	Minghsiu Tsai

Hi Hans,

The dependence on [1] has been merged in 4.10, but [2] has not.Do you have 
any idea about this patch series? Should we wait for [2] or we could merge
the source code and dt-binding first?

Best Regards,
Rick

On Wed, 2016-11-23 at 17:43 +0800, Rick Chang wrote:
> On Wed, 2016-11-23 at 09:54 +0800, Rick Chang wrote:
> > Hi Hans,
> > 
> > On Tue, 2016-11-22 at 13:43 +0100, Hans Verkuil wrote:
> > > On 22/11/16 04:21, Rick Chang wrote:
> > > > Hi Hans,
> > > >
> > > > On Mon, 2016-11-21 at 15:51 +0100, Hans Verkuil wrote:
> > > >> On 17/11/16 04:38, Rick Chang wrote:
> > > >>> Signed-off-by: Rick Chang <rick.chang@mediatek.com>
> > > >>> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
> > > >>> ---
> > > >>> This patch depends on:
> > > >>>   CCF "Add clock support for Mediatek MT2701"[1]
> > > >>>   iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]
> > > >>>
> > > >>> [1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
> > > >>> [2] https://patchwork.kernel.org/patch/9164013/
> > > >>
> > > >> I assume that 1 & 2 will appear in 4.10? So this patch needs to go in
> > > >> after the
> > > >> other two are merged in 4.10?
> > > >>
> > > >> Regards,
> > > >>
> > > >> 	Hans
> > > >
> > > > [1] will appear in 4.10, but [2] will appear latter than 4.10.So this
> > > > patch needs to go in after [1] & [2] will be merged in 4.11.
> > > 
> > > So what should I do? Merge the driver for 4.11 and wait with this patch
> > > until [2] is merged in 4.11? Does that sound reasonable?
> > > 
> > > Regards,
> > > 
> > > 	Hans
> > 
> > What do you think about this? You merge the driver first and I send this
> > patch again after [1] & [2] is merged.
> 
> BTW, to prevent merging conflict, the dtsi should be merged by mediatek
> SoC maintainer, Matthias.I think we can only take care on the driver
> part at this moment.
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2017-01-06  2:34             ` Rick Chang
@ 2017-01-09 11:29               ` Hans Verkuil
  2017-01-09 18:45                 ` Matthias Brugger
  0 siblings, 1 reply; 19+ messages in thread
From: Hans Verkuil @ 2017-01-09 11:29 UTC (permalink / raw)
  To: Rick Chang
  Cc: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Matthias Brugger, Rob Herring, linux-kernel, linux-media,
	srv_heupstream, linux-mediatek, linux-arm-kernel, devicetree,
	Minghsiu Tsai

Hi Rick,

On 01/06/2017 03:34 AM, Rick Chang wrote:
> Hi Hans,
> 
> The dependence on [1] has been merged in 4.10, but [2] has not.Do you have 
> any idea about this patch series? Should we wait for [2] or we could merge
> the source code and dt-binding first?

Looking at [2] I noticed that the last comment was July 4th. What is the reason
it hasn't been merged yet?

If I know [2] will be merged for 4.11, then I am fine with merging this media
patch series. The dependency of this patch on [2] is something Mauro can handle.

If [2] is not merged for 4.11, then I think it is better to wait until it is
merged.

Regards,

	Hans

> 
> Best Regards,
> Rick
> 
> On Wed, 2016-11-23 at 17:43 +0800, Rick Chang wrote:
>> On Wed, 2016-11-23 at 09:54 +0800, Rick Chang wrote:
>>> Hi Hans,
>>>
>>> On Tue, 2016-11-22 at 13:43 +0100, Hans Verkuil wrote:
>>>> On 22/11/16 04:21, Rick Chang wrote:
>>>>> Hi Hans,
>>>>>
>>>>> On Mon, 2016-11-21 at 15:51 +0100, Hans Verkuil wrote:
>>>>>> On 17/11/16 04:38, Rick Chang wrote:
>>>>>>> Signed-off-by: Rick Chang <rick.chang@mediatek.com>
>>>>>>> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
>>>>>>> ---
>>>>>>> This patch depends on:
>>>>>>>   CCF "Add clock support for Mediatek MT2701"[1]
>>>>>>>   iommu and smi "Add the dtsi node of iommu and smi for mt2701"[2]
>>>>>>>
>>>>>>> [1] http://lists.infradead.org/pipermail/linux-mediatek/2016-October/007271.html
>>>>>>> [2] https://patchwork.kernel.org/patch/9164013/
>>>>>>
>>>>>> I assume that 1 & 2 will appear in 4.10? So this patch needs to go in
>>>>>> after the
>>>>>> other two are merged in 4.10?
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> 	Hans
>>>>>
>>>>> [1] will appear in 4.10, but [2] will appear latter than 4.10.So this
>>>>> patch needs to go in after [1] & [2] will be merged in 4.11.
>>>>
>>>> So what should I do? Merge the driver for 4.11 and wait with this patch
>>>> until [2] is merged in 4.11? Does that sound reasonable?
>>>>
>>>> Regards,
>>>>
>>>> 	Hans
>>>
>>> What do you think about this? You merge the driver first and I send this
>>> patch again after [1] & [2] is merged.
>>
>> BTW, to prevent merging conflict, the dtsi should be merged by mediatek
>> SoC maintainer, Matthias.I think we can only take care on the driver
>> part at this moment.
>>
> 
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2017-01-09 11:29               ` Hans Verkuil
@ 2017-01-09 18:45                 ` Matthias Brugger
  2017-01-09 18:47                   ` Matthias Brugger
  2017-01-10  1:28                   ` Eddie Huang
  0 siblings, 2 replies; 19+ messages in thread
From: Matthias Brugger @ 2017-01-09 18:45 UTC (permalink / raw)
  To: Hans Verkuil, Rick Chang
  Cc: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Rob Herring, linux-kernel, linux-media, srv_heupstream,
	linux-mediatek, linux-arm-kernel, devicetree, Minghsiu Tsai,
	James Liao



On 09/01/17 12:29, Hans Verkuil wrote:
> Hi Rick,
>
> On 01/06/2017 03:34 AM, Rick Chang wrote:
>> Hi Hans,
>>
>> The dependence on [1] has been merged in 4.10, but [2] has not.Do you have
>> any idea about this patch series? Should we wait for [2] or we could merge
>> the source code and dt-binding first?
>
> Looking at [2] I noticed that the last comment was July 4th. What is the reason
> it hasn't been merged yet?
>
> If I know [2] will be merged for 4.11, then I am fine with merging this media
> patch series. The dependency of this patch on [2] is something Mauro can handle.
>
> If [2] is not merged for 4.11, then I think it is better to wait until it is
> merged.
>

I can't take [2] because there is no scpsys in the dts present. It seems 
that it got never posted.

Rick can you please follow-up with James and provide a patch which adds 
a scpsys node to the mt2701.dtsi?

Thanks,
Matthias

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2017-01-09 18:45                 ` Matthias Brugger
@ 2017-01-09 18:47                   ` Matthias Brugger
  2017-01-10  1:28                   ` Eddie Huang
  1 sibling, 0 replies; 19+ messages in thread
From: Matthias Brugger @ 2017-01-09 18:47 UTC (permalink / raw)
  To: Hans Verkuil, Rick Chang
  Cc: Hans Verkuil, Laurent Pinchart, Mauro Carvalho Chehab,
	Rob Herring, linux-kernel, linux-media, srv_heupstream,
	linux-mediatek, linux-arm-kernel, devicetree, Minghsiu Tsai,
	James Liao



On 09/01/17 19:45, Matthias Brugger wrote:
>
>
> On 09/01/17 12:29, Hans Verkuil wrote:
>> Hi Rick,
>>
>> On 01/06/2017 03:34 AM, Rick Chang wrote:
>>> Hi Hans,
>>>
>>> The dependence on [1] has been merged in 4.10, but [2] has not.Do you
>>> have
>>> any idea about this patch series? Should we wait for [2] or we could
>>> merge
>>> the source code and dt-binding first?
>>
>> Looking at [2] I noticed that the last comment was July 4th. What is
>> the reason
>> it hasn't been merged yet?
>>
>> If I know [2] will be merged for 4.11, then I am fine with merging
>> this media
>> patch series. The dependency of this patch on [2] is something Mauro
>> can handle.
>>
>> If [2] is not merged for 4.11, then I think it is better to wait until
>> it is
>> merged.
>>
>
> I can't take [2] because there is no scpsys in the dts present. It seems
> that it got never posted.
>
> Rick can you please follow-up with James and provide a patch which adds
> a scpsys node to the mt2701.dtsi?
>

Ah I forgot, dts patches should go through my tree, so Hans please don't 
merge this patch. Bindings should go through your branch though.

Thanks,
Matthias

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2017-01-09 18:45                 ` Matthias Brugger
  2017-01-09 18:47                   ` Matthias Brugger
@ 2017-01-10  1:28                   ` Eddie Huang
  2017-01-13 15:02                     ` Matthias Brugger
  1 sibling, 1 reply; 19+ messages in thread
From: Eddie Huang @ 2017-01-10  1:28 UTC (permalink / raw)
  To: Matthias Brugger
  Cc: Hans Verkuil, Rick Chang, devicetree, Laurent Pinchart,
	Minghsiu Tsai, srv_heupstream, James Liao, linux-kernel,
	Rob Herring, Hans Verkuil, linux-mediatek, Mauro Carvalho Chehab,
	linux-arm-kernel, linux-media

Hi Matthias,

On Mon, 2017-01-09 at 19:45 +0100, Matthias Brugger wrote:
> 
> On 09/01/17 12:29, Hans Verkuil wrote:
> > Hi Rick,
> >
> > On 01/06/2017 03:34 AM, Rick Chang wrote:
> >> Hi Hans,
> >>
> >> The dependence on [1] has been merged in 4.10, but [2] has not.Do you have
> >> any idea about this patch series? Should we wait for [2] or we could merge
> >> the source code and dt-binding first?
> >
> > Looking at [2] I noticed that the last comment was July 4th. What is the reason
> > it hasn't been merged yet?
> >
> > If I know [2] will be merged for 4.11, then I am fine with merging this media
> > patch series. The dependency of this patch on [2] is something Mauro can handle.
> >
> > If [2] is not merged for 4.11, then I think it is better to wait until it is
> > merged.
> >
> 
> I can't take [2] because there is no scpsys in the dts present. It seems 
> that it got never posted.
> 
> Rick can you please follow-up with James and provide a patch which adds 
> a scpsys node to the mt2701.dtsi?
> 

James sent three MT2701 dts patches [1] two weeks ago, these three
patches include scpsys node. Please take a reference. And We will send
new MT2701 ionmmu/smi dtsi node patch base on [1] later, thus you can
accept and merge to 4.11.

[1]
https://patchwork.kernel.org/patch/9489991/
https://patchwork.kernel.org/patch/9489985/
https://patchwork.kernel.org/patch/9489989/

Thanks,
Eddie

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2017-01-10  1:28                   ` Eddie Huang
@ 2017-01-13 15:02                     ` Matthias Brugger
  2017-02-09  2:10                       ` Rick Chang
  0 siblings, 1 reply; 19+ messages in thread
From: Matthias Brugger @ 2017-01-13 15:02 UTC (permalink / raw)
  To: Eddie Huang
  Cc: Hans Verkuil, Rick Chang, devicetree, Laurent Pinchart,
	Minghsiu Tsai, srv_heupstream, James Liao, linux-kernel,
	Rob Herring, Hans Verkuil, linux-mediatek, Mauro Carvalho Chehab,
	linux-arm-kernel, linux-media

Hi James,

On 10/01/17 02:28, Eddie Huang wrote:
> Hi Matthias,
>
> On Mon, 2017-01-09 at 19:45 +0100, Matthias Brugger wrote:
>>
>> On 09/01/17 12:29, Hans Verkuil wrote:
>>> Hi Rick,
>>>
>>> On 01/06/2017 03:34 AM, Rick Chang wrote:
>>>> Hi Hans,
>>>>
>>>> The dependence on [1] has been merged in 4.10, but [2] has not.Do you have
>>>> any idea about this patch series? Should we wait for [2] or we could merge
>>>> the source code and dt-binding first?
>>>
>>> Looking at [2] I noticed that the last comment was July 4th. What is the reason
>>> it hasn't been merged yet?
>>>
>>> If I know [2] will be merged for 4.11, then I am fine with merging this media
>>> patch series. The dependency of this patch on [2] is something Mauro can handle.
>>>
>>> If [2] is not merged for 4.11, then I think it is better to wait until it is
>>> merged.
>>>
>>
>> I can't take [2] because there is no scpsys in the dts present. It seems
>> that it got never posted.
>>
>> Rick can you please follow-up with James and provide a patch which adds
>> a scpsys node to the mt2701.dtsi?
>>
>
> James sent three MT2701 dts patches [1] two weeks ago, these three
> patches include scpsys node. Please take a reference. And We will send
> new MT2701 ionmmu/smi dtsi node patch base on [1] later, thus you can
> accept and merge to 4.11.
>

Thanks for the clarification. I pulled all this patches into 
v4.10-next/dts32

Hans will you take v9 of this patch set?
Then I'll take the dts patch.

Regards,
Matthias

> [1]
> https://patchwork.kernel.org/patch/9489991/
> https://patchwork.kernel.org/patch/9489985/
> https://patchwork.kernel.org/patch/9489989/
>
> Thanks,
> Eddie
>
>

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2017-01-13 15:02                     ` Matthias Brugger
@ 2017-02-09  2:10                       ` Rick Chang
  2017-02-13 10:42                         ` Hans Verkuil
  0 siblings, 1 reply; 19+ messages in thread
From: Rick Chang @ 2017-02-09  2:10 UTC (permalink / raw)
  To: Hans Verkuil, Matthias Brugger
  Cc: Eddie Huang, devicetree, Laurent Pinchart, Minghsiu Tsai,
	srv_heupstream, James Liao, linux-kernel, Rob Herring,
	linux-mediatek, Mauro Carvalho Chehab, linux-arm-kernel,
	linux-media

Hi Hans,

All the dependences of this patch have been merged into v4.10-next.Could
you take v9 of this patch set? Matthias will help us to take the dts
part.

Best Regards,
Rick

On Fri, 2017-01-13 at 16:02 +0100, Matthias Brugger wrote:
> Hi James,
> 
> On 10/01/17 02:28, Eddie Huang wrote:
> > Hi Matthias,
> >
> > On Mon, 2017-01-09 at 19:45 +0100, Matthias Brugger wrote:
> >>
> >> On 09/01/17 12:29, Hans Verkuil wrote:
> >>> Hi Rick,
> >>>
> >>> On 01/06/2017 03:34 AM, Rick Chang wrote:
> >>>> Hi Hans,
> >>>>
> >>>> The dependence on [1] has been merged in 4.10, but [2] has not.Do you have
> >>>> any idea about this patch series? Should we wait for [2] or we could merge
> >>>> the source code and dt-binding first?
> >>>
> >>> Looking at [2] I noticed that the last comment was July 4th. What is the reason
> >>> it hasn't been merged yet?
> >>>
> >>> If I know [2] will be merged for 4.11, then I am fine with merging this media
> >>> patch series. The dependency of this patch on [2] is something Mauro can handle.
> >>>
> >>> If [2] is not merged for 4.11, then I think it is better to wait until it is
> >>> merged.
> >>>
> >>
> >> I can't take [2] because there is no scpsys in the dts present. It seems
> >> that it got never posted.
> >>
> >> Rick can you please follow-up with James and provide a patch which adds
> >> a scpsys node to the mt2701.dtsi?
> >>
> >
> > James sent three MT2701 dts patches [1] two weeks ago, these three
> > patches include scpsys node. Please take a reference. And We will send
> > new MT2701 ionmmu/smi dtsi node patch base on [1] later, thus you can
> > accept and merge to 4.11.
> >
> 
> Thanks for the clarification. I pulled all this patches into 
> v4.10-next/dts32
> 
> Hans will you take v9 of this patch set?
> Then I'll take the dts patch.
> 
> Regards,
> Matthias
> 
> > [1]
> > https://patchwork.kernel.org/patch/9489991/
> > https://patchwork.kernel.org/patch/9489985/
> > https://patchwork.kernel.org/patch/9489989/
> >
> > Thanks,
> > Eddie
> >
> >

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder
  2017-02-09  2:10                       ` Rick Chang
@ 2017-02-13 10:42                         ` Hans Verkuil
  0 siblings, 0 replies; 19+ messages in thread
From: Hans Verkuil @ 2017-02-13 10:42 UTC (permalink / raw)
  To: Rick Chang, Matthias Brugger
  Cc: Eddie Huang, devicetree, Laurent Pinchart, Minghsiu Tsai,
	srv_heupstream, James Liao, linux-kernel, Rob Herring,
	linux-mediatek, Mauro Carvalho Chehab, linux-arm-kernel,
	linux-media

Hi Rick,

On 02/09/2017 03:10 AM, Rick Chang wrote:
> Hi Hans,
> 
> All the dependences of this patch have been merged into v4.10-next.Could
> you take v9 of this patch set? Matthias will help us to take the dts
> part.

Apologies for the delay. I'm posting the pull request today, but I don't know
if Mauro will pick it up for 4.11.

Mauro, since this needs to be coordinated with Matthias can you let him know
whether this will go in for 4.11 or 4.12?

Regards,

	Hans

> 
> Best Regards,
> Rick
> 
> On Fri, 2017-01-13 at 16:02 +0100, Matthias Brugger wrote:
>> Hi James,
>>
>> On 10/01/17 02:28, Eddie Huang wrote:
>>> Hi Matthias,
>>>
>>> On Mon, 2017-01-09 at 19:45 +0100, Matthias Brugger wrote:
>>>>
>>>> On 09/01/17 12:29, Hans Verkuil wrote:
>>>>> Hi Rick,
>>>>>
>>>>> On 01/06/2017 03:34 AM, Rick Chang wrote:
>>>>>> Hi Hans,
>>>>>>
>>>>>> The dependence on [1] has been merged in 4.10, but [2] has not.Do you have
>>>>>> any idea about this patch series? Should we wait for [2] or we could merge
>>>>>> the source code and dt-binding first?
>>>>>
>>>>> Looking at [2] I noticed that the last comment was July 4th. What is the reason
>>>>> it hasn't been merged yet?
>>>>>
>>>>> If I know [2] will be merged for 4.11, then I am fine with merging this media
>>>>> patch series. The dependency of this patch on [2] is something Mauro can handle.
>>>>>
>>>>> If [2] is not merged for 4.11, then I think it is better to wait until it is
>>>>> merged.
>>>>>
>>>>
>>>> I can't take [2] because there is no scpsys in the dts present. It seems
>>>> that it got never posted.
>>>>
>>>> Rick can you please follow-up with James and provide a patch which adds
>>>> a scpsys node to the mt2701.dtsi?
>>>>
>>>
>>> James sent three MT2701 dts patches [1] two weeks ago, these three
>>> patches include scpsys node. Please take a reference. And We will send
>>> new MT2701 ionmmu/smi dtsi node patch base on [1] later, thus you can
>>> accept and merge to 4.11.
>>>
>>
>> Thanks for the clarification. I pulled all this patches into 
>> v4.10-next/dts32
>>
>> Hans will you take v9 of this patch set?
>> Then I'll take the dts patch.
>>
>> Regards,
>> Matthias
>>
>>> [1]
>>> https://patchwork.kernel.org/patch/9489991/
>>> https://patchwork.kernel.org/patch/9489985/
>>> https://patchwork.kernel.org/patch/9489989/
>>>
>>> Thanks,
>>> Eddie
>>>
>>>
> 
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2017-02-13 10:42 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-11-17  3:38 [PATCH v6 0/3] Add Mediatek JPEG Decoder Rick Chang
2016-11-17  3:38 ` [PATCH v6 1/3] dt-bindings: mediatek: Add a binding for " Rick Chang
2016-11-17  3:38 ` [PATCH v6 2/3] vcodec: mediatek: Add Mediatek JPEG Decoder Driver Rick Chang
2016-11-17  3:38 ` [PATCH v6 3/3] arm: dts: mt2701: Add node for Mediatek JPEG Decoder Rick Chang
2016-11-21 14:51   ` Hans Verkuil
2016-11-22  3:21     ` Rick Chang
2016-11-22 12:43       ` Hans Verkuil
2016-11-23  1:54         ` Rick Chang
2016-11-23  9:43           ` Rick Chang
2017-01-06  2:34             ` Rick Chang
2017-01-09 11:29               ` Hans Verkuil
2017-01-09 18:45                 ` Matthias Brugger
2017-01-09 18:47                   ` Matthias Brugger
2017-01-10  1:28                   ` Eddie Huang
2017-01-13 15:02                     ` Matthias Brugger
2017-02-09  2:10                       ` Rick Chang
2017-02-13 10:42                         ` Hans Verkuil
2016-11-21 14:53 ` [PATCH v6 0/3] Add " Hans Verkuil
2016-11-22  3:12   ` Rick Chang

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