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path: root/drivers/media/i2c/soc_camera/ov9740.c
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Diffstat (limited to 'drivers/media/i2c/soc_camera/ov9740.c')
-rw-r--r--drivers/media/i2c/soc_camera/ov9740.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/media/i2c/soc_camera/ov9740.c b/drivers/media/i2c/soc_camera/ov9740.c
index 0bc21a643c08..ea76863dfdb4 100644
--- a/drivers/media/i2c/soc_camera/ov9740.c
+++ b/drivers/media/i2c/soc_camera/ov9740.c
@@ -17,6 +17,7 @@
#include <linux/v4l2-mediabus.h>
#include <media/soc_camera.h>
+#include <media/v4l2-clk.h>
#include <media/v4l2-ctrls.h>
#define to_ov9740(sd) container_of(sd, struct ov9740_priv, subdev)
@@ -195,6 +196,7 @@ struct ov9740_reg {
struct ov9740_priv {
struct v4l2_subdev subdev;
struct v4l2_ctrl_handler hdl;
+ struct v4l2_clk *clk;
u16 model;
u8 revision;
@@ -778,7 +780,7 @@ static int ov9740_s_power(struct v4l2_subdev *sd, int on)
int ret;
if (on) {
- ret = soc_camera_power_on(&client->dev, ssdd);
+ ret = soc_camera_power_on(&client->dev, ssdd, priv->clk);
if (ret < 0)
return ret;
@@ -792,7 +794,7 @@ static int ov9740_s_power(struct v4l2_subdev *sd, int on)
priv->current_enable = true;
}
- soc_camera_power_off(&client->dev, ssdd);
+ soc_camera_power_off(&client->dev, ssdd, priv->clk);
}
return 0;
@@ -958,9 +960,18 @@ static int ov9740_probe(struct i2c_client *client,
if (priv->hdl.error)
return priv->hdl.error;
+ priv->clk = v4l2_clk_get(&client->dev, "mclk");
+ if (IS_ERR(priv->clk)) {
+ ret = PTR_ERR(priv->clk);
+ goto eclkget;
+ }
+
ret = ov9740_video_probe(client);
- if (ret < 0)
+ if (ret < 0) {
+ v4l2_clk_put(priv->clk);
+eclkget:
v4l2_ctrl_handler_free(&priv->hdl);
+ }
return ret;
}
@@ -969,6 +980,7 @@ static int ov9740_remove(struct i2c_client *client)
{
struct ov9740_priv *priv = i2c_get_clientdata(client);
+ v4l2_clk_put(priv->clk);
v4l2_device_unregister_subdev(&priv->subdev);
v4l2_ctrl_handler_free(&priv->hdl);
return 0;