2019年5月30日(木) 4:25 Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>:
>
> From: Robert Jarzmik <robert.jarzmik@xxxxxxx>
>
> In the soc_camera removal, the board specific power callback was
> dropped. This at least will remove the power optimization from ezx and
> em-x270 pxa based boards.
>
> As to recreate the same level of functionality, make the mt9m111 have a
> regulator providing it its power, so that board designers can plug in a
> gpio based or ldo regulator, mimicking their former soc_camera power
> hook.
>
> Fixes: 5c10113cc668 ("media: mt9m111: make a standalone v4l2 subdevice")
>
> [mchehab+samsung@xxxxxxxxxx: check return values for regulator_enable and
> fix a build warning]
> Signed-off-by: Robert Jarzmik <robert.jarzmik@xxxxxxx>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
> ---
>
> This is a respin of this patch:
>
> http://patchwork.linuxtv.org/patch/37950/
>
> rebased (and fixed) to apply on the top of upstream.
>
> While checking old patches at the ML, I noticed that this patch
> was never applied:
>
> https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg1238720.html
>
> The first patch of this series got applied, though:
>
> c771f42fed7f ("[media] media: platform: pxa_camera: add missing sensor power on")
>
> So, I'm closing the original patch as obsoleted and I'm sending this
> one to the ML for tests.
>
> Can anyone test this patch and send a tested-by?
In my devicetree, vdd-supply is not defined. So it falls back to the dummy
regulator and works fine.
Tested-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
