Hello, this series implementes a modern V4L2 driver for Renesas Capture Engine Unit (CEU). CEU is currently supported by the soc_camera based driver drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c The driver supports capturing images in planar formats (NV12/21 and NV16/61) and non-planar YUYV422 format. It had been tested with OV7670/OV7725 images sensor capturing images at different resolutions (VGA and QVGA) The series: - Adds a new driver under drivers/media/platform/renesas-ceu.c and a new driver interface under include/media/drv-intf/renesas-ceu.h - Adds device tree bindings for renesas-ceu - Adds CEU to Renesas RZ/A1 dtsi - Ports Migo-R SH4 based platform to make use of the new driver - Ports image sensor drivers used by Migo-R (ov772x and tw9910) away from soc_camera While this driver aims to replace the existing one, which is the last platform driver making use of soc_camera framework, this series does not delete any of the existing code, just because there are other SH4 users of the existing soc_camera based driver: (mach-ap325rxa, mach-ecovec24, mach-kfr2r09 and mach-se/7724) As I only have access to Migo-R board, I have ported that one first, while all other boards can be compile-ported later, once this new driver will eventually be accepted mainline. This series is based on v4.14-rc8 with a few patches applied on top: https://www.spinics.net/lists/linux-sh/msg51739.html These patches are required for mainline Migo-R board and sh_mobile_ceu_camera driver to work properly with SH4 architecture on modern kernels, and I have based my series on top of them. A tag with those patches already applied on top of v4.14-rc8 is available at git://jmondi.org/linux v4.14-rc8-migor-ceu-base A note on testing: The CEU IP block is found on both Renesas RZ series devices (single core ARM platforms) and on older SH4 devices (such as Migo-R). I have developed and tested the driver on RZ platforms, specifically on GR-Peach with an OV7670 based camera module. More details on: https://elinux.org/RZ-A/Boards/GR-PEACH-audiocamerashield As we aim to replace the soc_camera based driver, I have also tested the new one on Migo-R, capturing images from the OV7725 sensor installed on that board (I've not been able to test TW9910 video decoder as the sensor does not probe on the platform I have access to). Hans, as you told me, you have a Migo-R and if you eventually would like to give this series a spin on that platform feel free to ping me, as to run a modern mainline kernel on SH4 you may need the above mentioned patches and some attention to configuration option for SH4. A note on sensor drivers: As I need ov772x and tw9910 driver to be ported away from soc_camera for testing on Migo-R, for each of them I have copied the driver first in drivers/media/i2c/ from drivers/media/i2c/soc_camera without any modification and then removed soc_camera dependencies in a separate commit to ease review. As per the soc_camera based CEU platform driver, I have not removed the original soc_camera based sensor drivers in this series. Output of v4l2-compliance is available at: https://paste.debian.net/995838/ I'm slightly confused about what the test application complains for TRY_FMT/S_FMT but I judged this good enough for a first submission. Thanks j Jacopo Mondi (10): dt-bindings: media: Add Renesas CEU bindings include: media: Add Renesas CEU driver interface v4l: platform: Add Renesas CEU driver ARM: dts: r7s72100: Add Capture Engine Unit (CEU) arch: sh: migor: Use new renesas-ceu camera driver sh: sh7722: Rename CEU clock v4l: i2c: Copy ov772x soc_camera sensor driver media: i2c: ov772x: Remove soc_camera dependencies v4l: i2c: Copy tw9910 soc_camera sensor driver media: i2c: tw9910: Remove soc_camera dependencies .../devicetree/bindings/media/renesas,ceu.txt | 87 + arch/arm/boot/dts/r7s72100.dtsi | 12 +- arch/sh/boards/mach-migor/setup.c | 164 +- arch/sh/kernel/cpu/sh4a/clock-sh7722.c | 2 +- drivers/media/i2c/Kconfig | 21 + drivers/media/i2c/Makefile | 2 + drivers/media/i2c/ov772x.c | 1156 +++++++++++++ drivers/media/i2c/tw9910.c | 1037 ++++++++++++ drivers/media/platform/Kconfig | 9 + drivers/media/platform/Makefile | 2 + drivers/media/platform/renesas-ceu.c | 1766 ++++++++++++++++++++ include/media/drv-intf/renesas-ceu.h | 23 + include/media/i2c/ov772x.h | 3 + include/media/i2c/tw9910.h | 6 + 14 files changed, 4199 insertions(+), 91 deletions(-) create mode 100644 Documentation/devicetree/bindings/media/renesas,ceu.txt create mode 100644 drivers/media/i2c/ov772x.c create mode 100644 drivers/media/i2c/tw9910.c create mode 100644 drivers/media/platform/renesas-ceu.c create mode 100644 include/media/drv-intf/renesas-ceu.h -- 2.7.4
