From: Akinobu Mita <akinobu.mita@gmail.com>
To: linux-media@vger.kernel.org
Cc: Akinobu Mita <akinobu.mita@gmail.com>,
Jacopo Mondi <jacopo+renesas@jmondi.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Hans Verkuil <hans.verkuil@cisco.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Mauro Carvalho Chehab <mchehab@s-opensource.com>
Subject: [PATCH] media: soc_camera: ov772x: correct setting of banding filter
Date: Mon, 11 Jun 2018 00:42:26 +0900 [thread overview]
Message-ID: <1528645346-19401-1-git-send-email-akinobu.mita@gmail.com> (raw)
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>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
---
drivers/media/i2c/soc_camera/ov772x.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/i2c/soc_camera/ov772x.c b/drivers/media/i2c/soc_camera/ov772x.c
index 8063835..14377af 100644
--- a/drivers/media/i2c/soc_camera/ov772x.c
+++ b/drivers/media/i2c/soc_camera/ov772x.c
@@ -834,7 +834,7 @@ static int ov772x_set_params(struct ov772x_priv *priv,
* set COM8
*/
if (priv->band_filter) {
- ret = ov772x_mask_set(client, COM8, BNDF_ON_OFF, 1);
+ ret = ov772x_mask_set(client, COM8, BNDF_ON_OFF, BNDF_ON_OFF);
if (!ret)
ret = ov772x_mask_set(client, BDBASE,
0xff, 256 - priv->band_filter);
--
2.7.4
next reply other threads:[~2018-06-10 15:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-10 15:42 Akinobu Mita [this message]
2018-06-11 16:43 ` [PATCH] media: soc_camera: ov772x: correct setting of banding filter jacopo mondi
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