Le 28/03/2017 à 10:23, Hans Verkuil a écrit :
> From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
>
> This patch series converts the soc-camera atmel-isi to a standalone V4L2
> driver.
>
> The same is done for the ov7670 and ov2640 sensor drivers: the ov7670 was
> used to test the atmel-isi driver. The ov2640 is needed because the em28xx
> driver has a soc_camera include dependency. Both ov7670 and ov2640 sensors
> have been tested with the atmel-isi driver.
>
> The first 5 patches improve the ov7670 sensor driver, mostly adding modern
> features such as DT support.
>
> The next three convert the atmel-isi and move it out of soc_camera.
>
> The following 6 patches convert ov2640 and drop the soc_camera dependency
> in em28xx. I have tested that this works with my 'SpeedLink Vicious And
> Divine Laplace webcam'.
>
> Tested with my sama5d3-Xplained board, the ov2640 sensor and two ov7670
> sensors: one with and one without reset/pwdn pins. Also tested with my
> em28xx-based webcam.
>
> I'd like to get this in for 4.12. Fingers crossed.
>
> Regards,
>
> Hans
>
> Changes since v5:
> - Dropped the last two dts patches as these were for demonstration purposes
> only.
> - Simplified isi_graph_init() return handling as suggested by Sakari.
> - Simplified atmel-isi format handling as suggested by Guennadi. Thanks for
> the suggestion, this improves the code nicely!
> - Improved RGB handling in atmel-isi, allowing for all YUV ordering and not
> just YUYV. Tested with YUYV and UYVY (the only two I can test with my
> hardware).
> - Improved commit message of the "atmel-isi: document device tree bindings"
> patch and dropped unnecessary properties from the example as per Rob's
> comments.
>
> Changes since v4:
> - the ov2640 colorspace fixes were inexplicably part of an atmel-isi patch.
> Split it off as a separate patch.
> - add V4L2_SUBDEV_FL_HAS_DEVNODE to ov2640.
> - drop #if defined(CONFIG_MEDIA_CONTROLLER) guard around media_entity_cleanup
> in ov2640.
>
> Changes since v3:
> - ov2640/ov7670: call clk_disable_unprepare where needed. I assumed this was
> done by the devm_clk_get cleanup, but that wasn't the case.
> - bindings: be even more explicit about which properties are mandatory.
> - ov2640/ov7670: drop unused bus-width from the dts binding examples and from
> the actual dts patches.
>
> Changes since v2:
> - Incorporated Sakari's and Rob's device tree bindings comments.
> - ov2640: dropped the reset/power changes. These actually broke the em28xx
> and there was really nothing wrong with it.
> - merged the "ov2640: allow use inside em28xx" into patches 10 and 11.
> It really shouldn't have been a separate patch in the first place.
> - rebased on top of 4.11-rc1.
>
> Changes since v1:
>
> - Dropped MC support from atmel-isi and ov7670: not needed to make this
> work. Only for the ov2640 was it kept since the em28xx driver requires it.
> - Use devm_clk_get instead of clk_get.
> - The ov7670 lower limit of the clock speed is 10 MHz instead of 12. Adjust
> accordingly.
>
>
> Hans Verkuil (14):
> ov7670: document device tree bindings
> ov7670: call v4l2_async_register_subdev
> ov7670: fix g/s_parm
> ov7670: get xclk
> ov7670: add devicetree support
> atmel-isi: update device tree bindings documentation
> atmel-isi: remove dependency of the soc-camera framework
> atmel-isi: move out of soc_camera to atmel
> ov2640: fix colorspace handling
> ov2640: update bindings
> ov2640: convert from soc-camera to a standard subdev sensor driver.
> ov2640: use standard clk and enable it.
> ov2640: add MC support
> em28xx: drop last soc_camera link
For the record, here is my test tag:
Tested-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>
On a Microchip/Atmel SAMA5D4-EK with OV2640 and the per-existing OV7740.
Thanks a lot Hans for this valuable work!
Best regards,
> .../devicetree/bindings/media/atmel-isi.txt | 91 +-
> .../devicetree/bindings/media/i2c/ov2640.txt | 23 +-
> .../devicetree/bindings/media/i2c/ov7670.txt | 43 +
> MAINTAINERS | 1 +
> drivers/media/i2c/Kconfig | 11 +
> drivers/media/i2c/Makefile | 1 +
> drivers/media/i2c/{soc_camera => }/ov2640.c | 153 +--
> drivers/media/i2c/ov7670.c | 75 +-
> drivers/media/i2c/soc_camera/Kconfig | 6 -
> drivers/media/i2c/soc_camera/Makefile | 1 -
> drivers/media/platform/Makefile | 1 +
> drivers/media/platform/atmel/Kconfig | 11 +-
> drivers/media/platform/atmel/Makefile | 1 +
> drivers/media/platform/atmel/atmel-isi.c | 1368 ++++++++++++++++++++
> .../platform/{soc_camera => atmel}/atmel-isi.h | 0
> drivers/media/platform/soc_camera/Kconfig | 11 -
> drivers/media/platform/soc_camera/Makefile | 1 -
> drivers/media/platform/soc_camera/atmel-isi.c | 1167 -----------------
> drivers/media/usb/em28xx/em28xx-camera.c | 9 -
> 19 files changed, 1614 insertions(+), 1360 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/media/i2c/ov7670.txt
> rename drivers/media/i2c/{soc_camera => }/ov2640.c (92%)
> create mode 100644 drivers/media/platform/atmel/atmel-isi.c
> rename drivers/media/platform/{soc_camera => atmel}/atmel-isi.h (100%)
> delete mode 100644 drivers/media/platform/soc_camera/atmel-isi.c
>
--
Nicolas Ferre
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