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Date:   Mon, 18 Feb 2019 13:37:26 +0000
From:   Ken Sloat <>
To:     "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>
Subject: RE: [PATCH] media: atmel: atmel-isc: reworked driver and formats

> -----Original Message-----
> From: <>
> Sent: Friday, February 15, 2019 3:38 AM
> To:;; linux-
>; Ken Sloat <>;
> Cc:
> Subject: [PATCH] media: atmel: atmel-isc: reworked driver and formats
> From: Eugen Hristev <>
> This change is a redesign in the formats and the way the ISC is configured
> w.r.t. sensor format and the output format from the ISC.
> I have changed the splitting between sensor output (which is also ISC input)
> and ISC output.
> The sensor format represents the way the sensor is configured, and what ISC
> is receiving.
> The format configuration represents the way ISC is interpreting the data and
> formatting the output to the subsystem.
> Now it's much easier to figure out what is the ISC configuration for input, and
> what is the configuration for output.
> The non-raw format can be obtained directly from sensor or it can be done
> inside the ISC. The controller format list will include a configuration for each
> format.
> The old supported formats are still in place, if we want to dump the sensor
> format directly to the output, the try format routine will detect and configure
> the pipeline accordingly.
> This also fixes the previous issues when the raw format was NULL which
> resulted in many crashes for sensors which did not have the expected/tested
> formats.
> Signed-off-by: Eugen Hristev <>
> ---
> Hello Ken and possibly others using ISC driver,
> I would appreciate if you could test this patch with your sensor, because I do
> not wish to break anything in your setups.
> Feedback is appreciated if any errors appear, so I can fix them.
> I tested with ov5640, ov7670, ov7740(only in 4.19 because on latest it's
> broken for me...) Rebased this patch on top of mediatree.git/master Thanks!
> Eugen
Hi Eugen,

No problem I will try to test sometime this week on my setup. I appreciate you keeping me in the loop.


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