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Date:   Wed, 29 Nov 2017 13:19:52 -0800
From:   Tim Harvey <tharvey@...eworks.com>
To:     linux-media@...r.kernel.org, alsa-devel@...a-project.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        shawnguo@...nel.org, Steve Longerbeam <slongerbeam@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Hans Verkuil <hansverk@...co.com>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>
Subject: [PATCH v4 0/5] TDA1997x HDMI video receiver

This is a v4l2 subdev driver supporting the TDA1997x HDMI video receiver.

I've tested this on a Gateworks GW54xx/GW551x with an IMX6Q which uses the
TDA19971 with 16bits connected to the IMX6 CSI. For this configuration I've
tested both 16bit YUV422 and 8bit BT656 parallel video bus modes.

While the driver should support the TDA1993 I do not have one for testing.

Further potential development efforts include:
 - CEC support
 - HDCP support
 - mbus format selection support for bus widths that support multiple formats
 - TDA19972 support (2 inputs)

Media graphs can be found at http://dev.gateworks.com/docs/linux/media

History:
v4:
 - move include/dt-bindings/media/tda1997x.h to bindings patch
 - clarify port node details in bindings
 - fix typos
 - fix default quant range for VGA
 - fix quant range handling and conv matrix
 - add additional standards and capabilities to timings_cap

v3:
 - fix typo in dt bindings
 - added dt bindings for GW551x
 - use V4L2_DV_BT_FRAME_WIDTH/HEIGHT macros
 - fixed missing break
 - use only hdmi_infoframe_log for infoframe logging
 - simplify tda1997x_s_stream error handling
 - add delayed work proc to handle hotplug enable/disable
 - fix set_edid (disable HPD before writing, enable after)
 - remove enabling edid by default
 - initialize timings
 - take quant range into account in colorspace conversion
 - remove vendor/product tracking (we provide this in log_status via infoframes)
 - add v4l_controls
 - add more detail to log_status
 - calculate vhref generator timings
 - timing detection fixes (rounding errors, hswidth errors)
 - rename configure_input/configure_conv functions

v2:
 - encorporate feedback into dt bindings
 - change audio dt bindings
 - implement dv timings enum/cap
 - remove deprecated g_mbus_config op
 - fix dv_query_timings
 - add EDID get/set handling
 - remove max-pixel-rate support
 - add audio codec DAI support
 - added media-ctl and v4l2-compliance details

v1:
 - initial RFC

Media device topology:
# media-ctl -d /dev/media0 -p
Media controller API version 4.13.0

Media device information
------------------------
driver          imx-media
model           imx-media
serial          
bus info        
hw revision     0x0
driver version  4.13.0

Device topology
- entity 1: adv7180 2-0020 (1 pad, 1 link)
            type V4L2 subdev subtype Unknown flags 20004
            device node name /dev/v4l-subdev0
	pad0: Source
		[fmt:UYVY8_2X8/720x480 field:interlaced colorspace:smpte170m]
		-> "ipu2_csi1_mux":1 []

- entity 3: tda19971 2-0048 (1 pad, 1 link)
            type V4L2 subdev subtype Unknown flags 0
            device node name /dev/v4l-subdev1
	pad0: Source
		[fmt:UYVY8_1X16/640x480 field:none colorspace:srgb]
		[dv.caps:BT.656/1120 min:640x480@...00000 max:1920x1080@...000000 stds:CEA-861,DMT caps:progressive]
		[dv.detect:BT.656/1120 640x480p59 (800x525) stds:CEA-861,DMT flags:has-cea861-vic]
		[dv.current:BT.656/1120 1920x1080p60 (2200x1125) stds:CEA-861,DMT flags:can-reduce-fps,CE-video,has-cea861-vic]
		-> "ipu1_csi0_mux":1 []

- entity 5: ipu1_vdic (3 pads, 3 links)
            type V4L2 subdev subtype Unknown flags 0
            device node name /dev/v4l-subdev2
	pad0: Sink
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		<- "ipu1_csi0":1 []
		<- "ipu1_csi1":1 []
	pad1: Sink
		[fmt:UYVY8_2X8/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
	pad2: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu1_ic_prp":0 []

- entity 9: ipu2_vdic (3 pads, 3 links)
            type V4L2 subdev subtype Unknown flags 0
            device node name /dev/v4l-subdev3
	pad0: Sink
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		<- "ipu2_csi0":1 []
		<- "ipu2_csi1":1 []
	pad1: Sink
		[fmt:UYVY8_2X8/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
	pad2: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu2_ic_prp":0 []

- entity 13: ipu1_ic_prp (3 pads, 5 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev4
	pad0: Sink
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		<- "ipu1_vdic":2 []
		<- "ipu1_csi0":1 []
		<- "ipu1_csi1":1 []
	pad1: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu1_ic_prpenc":0 []
	pad2: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu1_ic_prpvf":0 []

- entity 17: ipu1_ic_prpenc (2 pads, 2 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev5
	pad0: Sink
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		<- "ipu1_ic_prp":1 []
	pad1: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu1_ic_prpenc capture":0 []

- entity 20: ipu1_ic_prpenc capture (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video0
	pad0: Sink
		<- "ipu1_ic_prpenc":1 []

- entity 26: ipu1_ic_prpvf (2 pads, 2 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev6
	pad0: Sink
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		<- "ipu1_ic_prp":2 []
	pad1: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu1_ic_prpvf capture":0 []

- entity 29: ipu1_ic_prpvf capture (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video1
	pad0: Sink
		<- "ipu1_ic_prpvf":1 []

- entity 35: ipu2_ic_prp (3 pads, 5 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev7
	pad0: Sink
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		<- "ipu2_vdic":2 []
		<- "ipu2_csi0":1 []
		<- "ipu2_csi1":1 []
	pad1: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu2_ic_prpenc":0 []
	pad2: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu2_ic_prpvf":0 []

- entity 39: ipu2_ic_prpenc (2 pads, 2 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev8
	pad0: Sink
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		<- "ipu2_ic_prp":1 []
	pad1: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu2_ic_prpenc capture":0 []

- entity 42: ipu2_ic_prpenc capture (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video2
	pad0: Sink
		<- "ipu2_ic_prpenc":1 []

- entity 48: ipu2_ic_prpvf (2 pads, 2 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev9
	pad0: Sink
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		<- "ipu2_ic_prp":2 []
	pad1: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu2_ic_prpvf capture":0 []

- entity 51: ipu2_ic_prpvf capture (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video3
	pad0: Sink
		<- "ipu2_ic_prpvf":1 []

- entity 57: ipu1_csi0 (3 pads, 4 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev10
	pad0: Sink
		[fmt:UYVY8_2X8/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range
		 crop.bounds:(0,0)/640x480
		 crop:(0,0)/640x480
		 compose.bounds:(0,0)/640x480
		 compose:(0,0)/640x480]
		<- "ipu1_csi0_mux":2 []
	pad1: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu1_ic_prp":0 []
		-> "ipu1_vdic":0 []
	pad2: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu1_csi0 capture":0 []

- entity 61: ipu1_csi0 capture (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video4
	pad0: Sink
		<- "ipu1_csi0":2 []

- entity 67: ipu1_csi1 (3 pads, 3 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev11
	pad0: Sink
		[fmt:UYVY8_2X8/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range
		 crop.bounds:(0,0)/640x480
		 crop:(0,0)/640x480
		 compose.bounds:(0,0)/640x480
		 compose:(0,0)/640x480]
	pad1: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu1_ic_prp":0 []
		-> "ipu1_vdic":0 []
	pad2: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu1_csi1 capture":0 []

- entity 71: ipu1_csi1 capture (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video5
	pad0: Sink
		<- "ipu1_csi1":2 []

- entity 77: ipu2_csi0 (3 pads, 3 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev12
	pad0: Sink
		[fmt:UYVY8_2X8/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range
		 crop.bounds:(0,0)/640x480
		 crop:(0,0)/640x480
		 compose.bounds:(0,0)/640x480
		 compose:(0,0)/640x480]
	pad1: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu2_ic_prp":0 []
		-> "ipu2_vdic":0 []
	pad2: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu2_csi0 capture":0 []

- entity 81: ipu2_csi0 capture (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video6
	pad0: Sink
		<- "ipu2_csi0":2 []

- entity 87: ipu2_csi1 (3 pads, 4 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev13
	pad0: Sink
		[fmt:UYVY8_2X8/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range
		 crop.bounds:(0,0)/640x480
		 crop:(0,0)/640x480
		 compose.bounds:(0,0)/640x480
		 compose:(0,0)/640x480]
		<- "ipu2_csi1_mux":2 []
	pad1: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu2_ic_prp":0 []
		-> "ipu2_vdic":0 []
	pad2: Source
		[fmt:AYUV8_1X32/640x480@...0 field:none colorspace:smpte170m xfer:709 ycbcr:601 quantization:lim-range]
		-> "ipu2_csi1 capture":0 []

- entity 91: ipu2_csi1 capture (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video7
	pad0: Sink
		<- "ipu2_csi1":2 []

- entity 97: ipu1_csi0_mux (3 pads, 2 links)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev14
	pad0: Sink
		[fmt:unknown/0x0]
	pad1: Sink
		[fmt:unknown/0x0]
		<- "tda19971 2-0048":0 []
	pad2: Source
		[fmt:unknown/0x0]
		-> "ipu1_csi0":0 []

- entity 101: ipu2_csi1_mux (3 pads, 2 links)
              type V4L2 subdev subtype Unknown flags 0
              device node name /dev/v4l-subdev15
	pad0: Sink
		[fmt:unknown/0x0]
	pad1: Sink
		[fmt:unknown/0x0]
		<- "adv7180 2-0020":0 []
	pad2: Source
		[fmt:unknown/0x0]
		-> "ipu2_csi1":0 []


v4l2-compliance test results:
(on /dev/video6 as v4l2-compliance doesn't yet support subdevs)
Driver Info:
	Driver name   : imx-media-captu
	Card type     : imx-media-capture
	Bus info      : platform:ipu2_csi0
	Driver version: 4.13.0
	Capabilities  : 0x84200001
		Video Capture
		Streaming
		Extended Pix Format
		Device Capabilities
	Device Caps   : 0x04200001
		Video Capture
		Streaming
		Extended Pix Format

Compliance test for device /dev/video6 (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

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)
		fail: v4l2-test-input-output.cpp(418): G_INPUT not supported for a capture device
	test VIDIOC_G/S/ENUMINPUT: FAIL
	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
		test VIDIOC_QUERYCTRL: OK
		test VIDIOC_G/S_CTRL: OK
		fail: v4l2-test-controls.cpp(574): g_ext_ctrls does not support count == 0
		test VIDIOC_G/S/TRY_EXT_CTRLS: FAIL
		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
		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 (Not Supported)
		test Scaling: OK (Not Supported)

	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: 42, Succeeded: 40, Failed: 2, Warnings: 0

Tim Harvey (5):
  MAINTAINERS: add entry for NXP TDA1997x driver
  media: dt-bindings: Add bindings for TDA1997X
  media: i2c: Add TDA1997x HDMI receiver driver
  ARM: dts: imx: Add TDA19971 HDMI Receiver to GW54xx
  ARM: dts: imx: Add TDA19971 HDMI Receiver to GW551x

 .../devicetree/bindings/media/i2c/tda1997x.txt     |  179 +
 MAINTAINERS                                        |    8 +
 arch/arm/boot/dts/imx6q-gw54xx.dts                 |  102 +
 arch/arm/boot/dts/imx6qdl-gw54xx.dtsi              |   29 +-
 arch/arm/boot/dts/imx6qdl-gw551x.dtsi              |   85 +
 drivers/media/i2c/Kconfig                          |    9 +
 drivers/media/i2c/Makefile                         |    1 +
 drivers/media/i2c/tda1997x.c                       | 3516 ++++++++++++++++++++
 include/dt-bindings/media/tda1997x.h               |   78 +
 include/media/i2c/tda1997x.h                       |   53 +
 10 files changed, 4057 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/tda1997x.txt
 create mode 100644 drivers/media/i2c/tda1997x.c
 create mode 100644 include/dt-bindings/media/tda1997x.h
 create mode 100644 include/media/i2c/tda1997x.h

-- 
2.7.4

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