linux-kernel - [Patch v3 3/3] media: ov5640: Make 2592x1944 mode only available at 15 fps

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Date:   Fri, 4 Oct 2019 12:24:18 -0500
From:   Benoit Parrot <bparrot@...com>
To:     Hans Verkuil <hverkuil@...all.nl>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Jacopo Mondi <jacopo@...ndi.org>
CC:     <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Benoit Parrot <bparrot@...com>
Subject: [Patch v3 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>
Reviewed-by: Jacopo Mondi <jacopo@...ndi.org>
---
 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 5cebad151546..8ffb3a55ca27 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -1611,6 +1611,11 @@ 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 max */
+	if ((mode->hact == 2592 && mode->vact == 1944) &&
+	    fr > OV5640_15_FPS)
+		return NULL;
+
 	return mode;
 }
 
-- 
2.17.1