linux-kernel - Re: [PATCH v3 22/24] media: imx: Add MIPI CSI-2 OV5640 sensor subdev driver

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Date:   Mon, 30 Jan 2017 19:31:20 -0800
From:   Steve Longerbeam <slongerbeam@...il.com>
To:     Russell King - ARM Linux <linux@...linux.org.uk>
Cc:     robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        kernel@...gutronix.de, fabio.estevam@....com, mchehab@...nel.org,
        hverkuil@...all.nl, nick@...anahar.org, markus.heiser@...marIT.de,
        p.zabel@...gutronix.de, laurent.pinchart+renesas@...asonboard.com,
        bparrot@...com, geert@...ux-m68k.org, arnd@...db.de,
        sudipm.mukherjee@...il.com, minghsiu.tsai@...iatek.com,
        tiffany.lin@...iatek.com, jean-christophe.trotin@...com,
        horms+renesas@...ge.net.au, niklas.soderlund+renesas@...natech.se,
        robert.jarzmik@...e.fr, songjun.wu@...rochip.com,
        andrew-ct.chen@...iatek.com, gregkh@...uxfoundation.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        devel@...verdev.osuosl.org,
        Steve Longerbeam <steve_longerbeam@...tor.com>
Subject: Re: [PATCH v3 22/24] media: imx: Add MIPI CSI-2 OV5640 sensor subdev
 driver



On 01/30/2017 03:29 PM, Russell King - ARM Linux wrote:
> On Fri, Jan 06, 2017 at 06:11:40PM -0800, Steve Longerbeam wrote:
>> +config IMX_OV5640_MIPI
>> +       tristate "OmniVision OV5640 MIPI CSI-2 camera support"
>> +       depends on GPIOLIB && VIDEO_IMX_CAMERA
>> +       select IMX_MIPI_CSI2
>> +       default y
> Why is this defaulting to y?  New drivers should not default to enabled
> unless they are replacing some already pre-existing functionality.
> Ditto for the other camera driver.

The ov564x sensors are required for the SabreSD and SabreLite/Nitrogen
reference boards (if VIDEO_IMX_CAMERA is enabled that is). But they're not
required for other platforms, so you're right I shouldn't have defaulted 
these
to yes. Fixed.


Steve