media: soc_camera: ov772x: correct setting of banding filter
authorAkinobu Mita <akinobu.mita@gmail.com>
Sun, 10 Jun 2018 15:42:26 +0000 (11:42 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 4 Oct 2018 00:01:46 +0000 (17:01 -0700)
commit66459f5c1c535157c68775e361c68a65a8f58538
treedae4a001c34f8d098395075183fb843800177d11
parent84d068c8646568565ecd5d66d1c6752acd4157c4
media: soc_camera: ov772x: correct setting of banding filter

[ Upstream commit 22216ec41e919682c15345e95928f266e8ba6f9e ]

The banding filter ON/OFF is controlled via bit 5 of COM8 register.  It
is attempted to be enabled in ov772x_set_params() by the following line.

ret = ov772x_mask_set(client, COM8, BNDF_ON_OFF, 1);

But this unexpectedly results disabling the banding filter, because the
mask and set bits are exclusive.

On the other hand, ov772x_s_ctrl() correctly sets the bit by:

ret = ov772x_mask_set(client, COM8, BNDF_ON_OFF, BNDF_ON_OFF);

The same fix was already applied to non-soc_camera version of ov772x
driver in the commit commit a024ee14cd36 ("media: ov772x: correct setting
of banding filter")

Cc: Jacopo Mondi <jacopo+renesas@jmondi.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/media/i2c/soc_camera/ov772x.c