[media] media: ov7670: Allow 32x maximum gain for yuv422
[media] media: ov7670: Allow 32x maximum gain for yuv422

4x gain ceiling is not enough to capture a decent image in conditions
of total darkness and only a LED light source. Allow a maximum gain
of 32x instead.
This doesn't have any drawback since the image quality in 'normal'
light conditions is the same.

Signed-off-by: Javier Martin <bc650ed6f7e96f783596936e885b30ab9a703a6b@vista-silicon.com>
Acked-by: Jonathan Corbet <b2ce64d5587c02f12e367eac59751145a0660c51@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@redhat.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas