linux-kernel - [Patch 3/3] media: ov5640: Make 2592x1944 mode only available at 15 fps

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 25 Sep 2019 10:23:01 -0500
From:   Benoit Parrot <bparrot@...com>
To:     Hans Verkuil <hverkuil@...all.nl>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>
CC:     <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Benoit Parrot <bparrot@...com>
Subject: [Patch 3/3] media: ov5640: Make 2592x1944 mode only available at 15 fps

The sensor data sheet clearly state that 2592x1944 only works at 15 fps
make sure we don't try to miss configure the pll out of acceptable
range.

Signed-off-by: Benoit Parrot <bparrot@...com>
---
 drivers/media/i2c/ov5640.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index aa56a5a93283..3c9e61f948a5 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -1614,6 +1614,11 @@ ov5640_find_mode(struct ov5640_dev *sensor, enum ov5640_frame_rate fr,
 	    !(mode->hact == 640 && mode->vact == 480))
 		return NULL;
 
+	/* 2592x1944 only works at 15fps */
+	if (fr != OV5640_15_FPS &&
+	    (mode->hact == 2592 && mode->vact == 1944))
+		return NULL;
+
 	return mode;
 }
 
-- 
2.17.1