linux-kernel - Re: [PATCH v1 0/6] Add support of OV9655 camera

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Message-Id: <385A82AC-CC23-41BD-9F57-0232F713FED9@goldelico.com>
Date:   Thu, 22 Jun 2017 17:41:11 +0200
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Hugues Fruchet <hugues.fruchet@...com>
Cc:     Sylwester Nawrocki <sylvester.nawrocki@...il.com>,
        Guennadi Liakhovetski <g.liakhovetski@....de>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil@...all.nl>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>, linux-media@...r.kernel.org,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Yannick Fertre <yannick.fertre@...com>,
        Discussions about the Letux Kernel 
        <letux-kernel@...nphoenux.org>
Subject: Re: [PATCH v1 0/6] Add support of OV9655 camera


> Am 22.06.2017 um 17:05 schrieb Hugues Fruchet <hugues.fruchet@...com>:
> 
> This patchset enables OV9655 camera support.
> 
> OV9655 support has been tested using STM32F4DIS-CAM extension board
> plugged on connector P1 of STM32F746G-DISCO board.
> Due to lack of OV9650/52 hardware support, the modified related code
> could not have been checked for non-regression.
> 
> First patches upgrade current support of OV9650/52 to prepare then
> introduction of OV9655 variant patch.
> Because of OV9655 register set slightly different from OV9650/9652,
> not all of the driver features are supported (controls). Supported
> resolutions are limited to VGA, QVGA, QQVGA.
> Supported format is limited to RGB565.
> Controls are limited to color bar test pattern for test purpose.
> 
> OV9655 initial support is based on a driver written by H. Nikolaus Schaller [1].

Great!

I will test as soon as possible.

> OV9655 registers sequences come from STM32CubeF7 embedded software [2].

There is also a preliminary data sheet, e.g. here:

http://electricstuff.co.uk/OV9655-datasheet-annotated.pdf

> 
> [1] http://git.goldelico.com/?p=gta04-kernel.git;a=shortlog;h=refs/heads/work/hns/video/ov9655
> [2] https://developer.mbed.org/teams/ST/code/BSP_DISCO_F746NG/file/e1d9da7fe856/Drivers/BSP/Components/ov9655/ov9655.c
> 
> ===========
> = history =
> ===========
> version 1:
>  - Initial submission.
> 
> H. Nikolaus Schaller (1):
>  DT bindings: add bindings for ov965x camera module
> 
> Hugues Fruchet (5):
>  [media] ov9650: add device tree support
>  [media] ov9650: select the nearest higher resolution
>  [media] ov9650: use write_array() for resolution sequences
>  [media] ov9650: add multiple variant support
>  [media] ov9650: add support of OV9655 variant
> 
> .../devicetree/bindings/media/i2c/ov965x.txt       |  37 +
> drivers/media/i2c/Kconfig                          |   6 +-
> drivers/media/i2c/ov9650.c                         | 792 +++++++++++++++++----
> 3 files changed, 704 insertions(+), 131 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/media/i2c/ov965x.txt
> 
> -- 
> 1.9.1
> 

BR and thanks,
Nikolaus Schaller