lkml.org 
[lkml]   [2021]   [Mar]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/3] media: i2c: imx219: Serialize during stream start/stop
Date
Serialize during stream start/stop in suspend/resume callbacks.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
drivers/media/i2c/imx219.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index f0cf1985a4dc..87c021de1460 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -1172,8 +1172,10 @@ static int __maybe_unused imx219_suspend(struct device *dev)
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct imx219 *imx219 = to_imx219(sd);

+ mutex_lock(&imx219->mutex);
if (imx219->streaming)
imx219_stop_streaming(imx219);
+ mutex_unlock(&imx219->mutex);

return 0;
}
@@ -1184,11 +1186,13 @@ static int __maybe_unused imx219_resume(struct device *dev)
struct imx219 *imx219 = to_imx219(sd);
int ret;

+ mutex_lock(&imx219->mutex);
if (imx219->streaming) {
ret = imx219_start_streaming(imx219);
if (ret)
goto error;
}
+ mutex_unlock(&imx219->mutex);

return 0;

@@ -1197,6 +1201,7 @@ static int __maybe_unused imx219_resume(struct device *dev)
imx219->streaming = false;
__v4l2_ctrl_grab(imx219->vflip, false);
__v4l2_ctrl_grab(imx219->hflip, false);
+ mutex_unlock(&imx219->mutex);

return ret;
}
--
2.17.1
\
 
 \ /
  Last update: 2021-03-10 13:22    [W:0.073 / U:0.096 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site