linux-kernel - [PATCH 1/2] media: i2c: st_mipid02: cascade s

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Message-ID: <20230711123211.794838-2-alain.volmat@foss.st.com>
Date:   Tue, 11 Jul 2023 14:32:09 +0200
From:   Alain Volmat <alain.volmat@...s.st.com>
To:     Benjamin Mugnier <benjamin.mugnier@...s.st.com>,
        Sylvain Petinot <sylvain.petinot@...s.st.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
CC:     <alain.volmat@...s.st.com>, <linux-media@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] media: i2c: st_mipid02: cascade s_stream call to the source subdev

Cascade the s_stream call to the source subdev whenever the bridge
streaming is enable / disabled.

Signed-off-by: Alain Volmat <alain.volmat@...s.st.com>
---
 drivers/media/i2c/st-mipid02.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/media/i2c/st-mipid02.c b/drivers/media/i2c/st-mipid02.c
index 906553a28676..703d2f06f552 100644
--- a/drivers/media/i2c/st-mipid02.c
+++ b/drivers/media/i2c/st-mipid02.c
@@ -547,6 +547,13 @@ static int mipid02_stream_disable(struct mipid02_dev *bridge)
 	struct i2c_client *client = bridge->i2c_client;
 	int ret;
 
+	if (!bridge->s_subdev)
+		goto error;
+
+	ret = v4l2_subdev_call(bridge->s_subdev, video, s_stream, 0);
+	if (ret)
+		goto error;
+
 	/* Disable all lanes */
 	ret = mipid02_write_reg(bridge, MIPID02_CLK_LANE_REG1, 0);
 	if (ret)
@@ -633,6 +640,10 @@ static int mipid02_stream_enable(struct mipid02_dev *bridge)
 	if (ret)
 		goto error;
 
+	ret = v4l2_subdev_call(bridge->s_subdev, video, s_stream, 1);
+	if (ret)
+		goto error;
+
 	return 0;
 
 error:
-- 
2.25.1