From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Drop mutex while applying controls and just rely on
pm_runtime_get_if_in_use() call.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
drivers/media/i2c/ov5645.c | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)
diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c
index 45687d004004..25c60afcc0ec 100644
--- a/drivers/media/i2c/ov5645.c
+++ b/drivers/media/i2c/ov5645.c
@@ -106,8 +106,6 @@ struct ov5645 {
u8 timing_tc_reg20;
u8 timing_tc_reg21;
- struct mutex power_lock; /* lock to protect power state */
-
struct gpio_desc *enable_gpio;
struct gpio_desc *rst_gpio;
};
@@ -782,11 +780,8 @@ static int ov5645_s_ctrl(struct v4l2_ctrl *ctrl)
struct ov5645, ctrls);
int ret;
- mutex_lock(&ov5645->power_lock);
- if (!pm_runtime_get_if_in_use(ov5645->dev)) {
- mutex_unlock(&ov5645->power_lock);
+ if (!pm_runtime_get_if_in_use(ov5645->dev))
return 0;
- }
switch (ctrl->id) {
case V4L2_CID_SATURATION:
@@ -817,7 +812,6 @@ static int ov5645_s_ctrl(struct v4l2_ctrl *ctrl)
pm_runtime_mark_last_busy(ov5645->dev);
pm_runtime_put_autosuspend(ov5645->dev);
- mutex_unlock(&ov5645->power_lock);
return ret;
}
@@ -1124,8 +1118,6 @@ static int ov5645_probe(struct i2c_client *client)
if (IS_ERR(ov5645->rst_gpio))
return dev_err_probe(dev, PTR_ERR(ov5645->rst_gpio), "cannot get reset gpio\n");
- mutex_init(&ov5645->power_lock);
-
v4l2_ctrl_handler_init(&ov5645->ctrls, 9);
v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
V4L2_CID_SATURATION, -4, 4, 1, 0);
@@ -1245,7 +1237,6 @@ static int ov5645_probe(struct i2c_client *client)
media_entity_cleanup(&ov5645->sd.entity);
free_ctrl:
v4l2_ctrl_handler_free(&ov5645->ctrls);
- mutex_destroy(&ov5645->power_lock);
return ret;
}
@@ -1262,7 +1253,6 @@ static void ov5645_remove(struct i2c_client *client)
if (!pm_runtime_status_suspended(ov5645->dev))
ov5645_set_power_off(ov5645->dev);
pm_runtime_set_suspended(ov5645->dev);
- mutex_destroy(&ov5645->power_lock);
}
static const struct i2c_device_id ov5645_id[] = {
--
2.34.1
