| Message ID | cover.1695981374.git.mehdi.djait@bootlin.com |
|---|---|
| Headers | show |
| Series | media: rockchip: Add a driver for Rockchip's camera interface | expand |
On 29/09/2023 12:08, Mehdi Djait wrote: > Introduce a driver for the camera interface on some Rockchip platforms. > ... > +static const struct of_device_id rk_vip_plat_of_match[] = { > + { > + .compatible = "rockchip,px30-vip", > + .data = &px30_vip_match_data, > + }, > + {}, > +}; > + > +void rk_vip_soft_reset(struct rk_vip_device *vip_dev) > +{ > + reset_control_assert(vip_dev->vip_rst); > + > + udelay(5); > + > + reset_control_deassert(vip_dev->vip_rst); > +} > + > +static int rk_vip_plat_probe(struct platform_device *pdev) > +{ > + const struct of_device_id *match; > + struct device_node *node = pdev->dev.of_node; > + struct device *dev = &pdev->dev; > + struct v4l2_device *v4l2_dev; > + struct rk_vip_device *vip_dev; > + const struct vip_match_data *data; > + struct resource *res; > + int i, ret, irq; > + > + match = of_match_node(rk_vip_plat_of_match, node); > + if (IS_ERR(match)) of_match_node does no return ERR_PTR. > + return PTR_ERR(match); > + > + vip_dev = devm_kzalloc(dev, sizeof(*vip_dev), GFP_KERNEL); > + if (!vip_dev) > + return -ENOMEM; > + > + dev_set_drvdata(dev, vip_dev); > + vip_dev->dev = dev; > + > + irq = platform_get_irq(pdev, 0); > + if (irq < 0) > + return irq; > + > + ret = devm_request_irq(dev, irq, rk_vip_irq_pingpong, IRQF_SHARED, Shared? With devm? This is error-prone pattern (as discussed few times on the list). Are you 100% sure that all your use-cases are correct? > + dev_driver_string(dev), dev); > + if (ret < 0) { > + dev_err(dev, "request irq failed: %d\n", ret); return dev_err_probe > + return ret; > + } > + > + vip_dev->irq = irq; > + data = match->data; > + vip_dev->chip_id = data->chip_id; > + > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + vip_dev->base_addr = devm_ioremap_resource(dev, res); Use wrapper for these two. > + > + if (IS_ERR(vip_dev->base_addr)) > + return PTR_ERR(vip_dev->base_addr); > + > + for (i = 0; i < data->clks_num; i++) > + vip_dev->clks[i].id = data->clks[i]; > + > + vip_dev->num_clk = data->clks_num; > + > + ret = devm_clk_bulk_get(dev, vip_dev->num_clk, vip_dev->clks); > + if (ret) > + return ret; > + > + vip_dev->vip_rst = devm_reset_control_array_get(dev, false, false); > + if (IS_ERR(vip_dev->vip_rst)) > + return PTR_ERR(vip_dev->vip_rst); > + > + /* Initialize the stream */ > + rk_vip_stream_init(vip_dev); > + strscpy(vip_dev->media_dev.model, "rk_vip", > + sizeof(vip_dev->media_dev.model)); > + vip_dev->media_dev.dev = &pdev->dev; > + v4l2_dev = &vip_dev->v4l2_dev; > + v4l2_dev->mdev = &vip_dev->media_dev; > + strscpy(v4l2_dev->name, "rk_vip", sizeof(v4l2_dev->name)); > + > + ret = v4l2_device_register(vip_dev->dev, &vip_dev->v4l2_dev); > + if (ret < 0) > + return ret; > + > + media_device_init(&vip_dev->media_dev); > + > + ret = media_device_register(&vip_dev->media_dev); > + if (ret < 0) { > + v4l2_err(v4l2_dev, "Failed to register media device: %d\n", > + ret); > + goto err_unreg_v4l2_dev; > + } > + > + /* create & register platform subdev (from of_node) */ > + ret = rk_vip_register_platform_subdevs(vip_dev); > + if (ret < 0) > + goto err_unreg_media_dev; > + > + vip_dev->sensor.std = V4L2_STD_NTSC; > + rk_vip_set_default_format(vip_dev); > + pm_runtime_enable(&pdev->dev); > + > + return 0; > + > +err_unreg_media_dev: > + media_device_unregister(&vip_dev->media_dev); > +err_unreg_v4l2_dev: > + v4l2_device_unregister(&vip_dev->v4l2_dev); > + return ret; > +} > + > +static int rk_vip_plat_remove(struct platform_device *pdev) > +{ > + struct rk_vip_device *vip_dev = platform_get_drvdata(pdev); > + > + pm_runtime_disable(&pdev->dev); > + > + media_device_unregister(&vip_dev->media_dev); > + v4l2_device_unregister(&vip_dev->v4l2_dev); > + rk_vip_unregister_stream_vdev(vip_dev); > + > + return 0; > +} > + > +static int __maybe_unused rk_vip_runtime_suspend(struct device *dev) > +{ > + struct rk_vip_device *vip_dev = dev_get_drvdata(dev); > + > + clk_bulk_disable_unprepare(vip_dev->num_clk, vip_dev->clks); > + > + return pinctrl_pm_select_sleep_state(dev); > +} > + > +static int __maybe_unused rk_vip_runtime_resume(struct device *dev) > +{ > + struct rk_vip_device *vip_dev = dev_get_drvdata(dev); > + int ret; > + > + ret = pinctrl_pm_select_default_state(dev); > + if (ret < 0) > + return ret; > + > + return clk_bulk_prepare_enable(vip_dev->num_clk, vip_dev->clks); > +} > + > +static const struct dev_pm_ops rk_vip_plat_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, > + pm_runtime_force_resume) > + SET_RUNTIME_PM_OPS(rk_vip_runtime_suspend, rk_vip_runtime_resume, NULL) > +}; > + > +static struct platform_driver rk_vip_plat_drv = { > + .driver = { > + .name = VIP_DRIVER_NAME, > + .of_match_table = of_match_ptr(rk_vip_plat_of_match), drop of_match_ptr, causes warnings in your code. Best regards, Krzysztof
Hello everyone, This series is based on the fifth iteration of the series introducing the rockchip vip driver for the PX30 camera interface: sent 29 Dec 2020 [1] Most of this driver was written following the BSP driver from rockchip, removing the parts that either didn't fit correctly the guidelines, or that couldn't be tested. In the BSP, this driver is known as the "cif" driver, but this was renamed to "vip" to better fit the controller denomination in the datasheet. This version of the driver supports ONLY the parallel interface BT656 and was tested/implemented using an SDTV video decoder base-commit: 2c1bae27df787c9535e48cc27bbd11c3c3e0a235 Changes since fifth iteration in [1]: vip/capture.c vip/dev.c vip/dev.h - added a video g_input_status subdev call, V4L2_IN_CAP_STD and the supported stds in rk_vip_enum_input callback - added rk_vip_g_std, rk_vip_s_std and rk_vip_querystd callbacks - added the supported video_device->tvnorms - s_std will now update the format as this depends on the standard NTSC/PAL (as suggested by Hans in [1]) - removed STD_ATSC - moved the colorimetry information to come from the subdev - removed the core s_power subdev calls - dropped cropping in rk_vip_stream struct rockchip-vip.yaml: - fixed a mistake in the name of third clock plckin -> plck - changed the reg maxItems 2 -> 1 [1] https://lore.kernel.org/linux-media/20201229161724.511102-1-maxime.chevallier@bootlin.com/ I used v4l-utils with HEAD: commit 1ee258e5bb91a12df378e19eb255c5219d6bc36b # v4l2-compliance v4l2-compliance 1.25.0, 64 bits, 64-bit time_t Compliance test for rk_vip device /dev/video0: Driver Info: Driver name : rk_vip Card type : rk_vip Bus info : platform:ff490000.vip Driver version : 6.6.0 Capabilities : 0x84201000 Video Capture Multiplanar Streaming Extended Pix Format Device Capabilities Device Caps : 0x04201000 Video Capture Multiplanar Streaming Extended Pix Format Media Driver Info: Driver name : rk_vip Model : rk_vip Serial : Bus info : platform:ff490000.vip Media version : 6.6.0 Hardware revision: 0x00000000 (0) Driver version : 6.6.0 Interface Info: ID : 0x03000002 Type : V4L Video Entity Info: ID : 0x00000001 (1) Name : video_rkvip Function : V4L2 I/O Pad 0x01000004 : 0: Sink Link 0x02000009: from remote pad 0x1000006 of entity 'tw9900 2-0044' (Digital Video Decoder): Data, Enabled Required ioctls: test MC information (see 'Media Driver Info' above): OK test VIDIOC_QUERYCAP: OK test invalid ioctls: OK Allow for multiple opens: test second /dev/video0 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 test VIDIOC_G/S_AUDIO: OK (Not Supported) Inputs: 1 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 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 (Input 0): 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 (Input 0): 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 (Not Supported) test Scaling: OK (Not Supported) Codec ioctls (Input 0): 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 (Input 0): test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK test VIDIOC_EXPBUF: OK test Requests: OK (Not Supported) Total for rk_vip device /dev/video0: 46, Succeeded: 46, Failed: 0, Warnings: 0 Mehdi Djait (3): media: dt-bindings: media: add rockchip-vip media: rockchip: Add a driver for Rockhip's camera interface arm64: dts: rockchip: Add the camera interface Mehdi Djait (3): media: dt-bindings: media: add rockchip-vip media: rockchip: Add a driver for Rockhip's camera interface arm64: dts: rockchip: Add the camera interface .../bindings/media/rockchip-vip.yaml | 91 ++ arch/arm64/boot/dts/rockchip/px30.dtsi | 12 + drivers/media/platform/rockchip/Kconfig | 1 + drivers/media/platform/rockchip/Makefile | 1 + drivers/media/platform/rockchip/vip/Kconfig | 14 + drivers/media/platform/rockchip/vip/Makefile | 3 + drivers/media/platform/rockchip/vip/capture.c | 1197 +++++++++++++++++ drivers/media/platform/rockchip/vip/dev.c | 332 +++++ drivers/media/platform/rockchip/vip/dev.h | 163 +++ drivers/media/platform/rockchip/vip/regs.h | 260 ++++ 10 files changed, 2074 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/rockchip-vip.yaml create mode 100644 drivers/media/platform/rockchip/vip/Kconfig create mode 100644 drivers/media/platform/rockchip/vip/Makefile create mode 100644 drivers/media/platform/rockchip/vip/capture.c create mode 100644 drivers/media/platform/rockchip/vip/dev.c create mode 100644 drivers/media/platform/rockchip/vip/dev.h create mode 100644 drivers/media/platform/rockchip/vip/regs.h