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Subject: media: ov5640: add missing output pixel format setting
Author: Akinobu Mita <akinobu.m...@gmail.com>
Date: Sun Mar 11 11:34:41 2018 -0400
The output pixel format changed by set_fmt() pad operation is not
correctly applied. It is intended to be restored by calling
ov5640_set_framefmt() when the video stream is started.
However, when the device is powered on by s_power subdev operation before
the video stream is started, the current output mode setting is restored
by ov5640_restore_mode() that also clears pending_mode_change flag in
ov5640_set_mode(). So ov5640_set_framefmt() isn't called as intended and
the output pixel format is not restored.
This change adds the missing output pixel format setting in the
ov5640_restore_mode() that is called when the device is powered on.
Cc: Steve Longerbeam <slongerb...@gmail.com>
Cc: Hugues Fruchet <hugues.fruc...@st.com>
Cc: Mauro Carvalho Chehab <mche...@s-opensource.com>
Signed-off-by: Akinobu Mita <akinobu.m...@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mche...@s-opensource.com>
drivers/media/i2c/ov5640.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
---
diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 271e8624292e..852026baa2e7 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -1641,6 +1641,9 @@ static int ov5640_set_mode(struct ov5640_dev *sensor,
return 0;
}
+static int ov5640_set_framefmt(struct ov5640_dev *sensor,
+ struct v4l2_mbus_framefmt *format);
+
/* restore the last set video mode after chip power-on */
static int ov5640_restore_mode(struct ov5640_dev *sensor)
{
@@ -1652,7 +1655,11 @@ static int ov5640_restore_mode(struct ov5640_dev *sensor)
return ret;
/* now restore the last capture mode */
- return ov5640_set_mode(sensor, &ov5640_mode_init_data);
+ ret = ov5640_set_mode(sensor, &ov5640_mode_init_data);
+ if (ret < 0)
+ return ret;
+
+ return ov5640_set_framefmt(sensor, &sensor->fmt);
}
static void ov5640_power(struct ov5640_dev *sensor, bool enable)
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