diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/i2c/ov7251.c | 93 |
1 files changed, 52 insertions, 41 deletions
diff --git a/drivers/media/i2c/ov7251.c b/drivers/media/i2c/ov7251.c index 54c883753207..e50514bbb345 100644 --- a/drivers/media/i2c/ov7251.c +++ b/drivers/media/i2c/ov7251.c @@ -1485,12 +1485,58 @@ static int ov7251_detect_chip(struct ov7251 *ov7251) return 0; } +static int ov7251_init_ctrls(struct ov7251 *ov7251) +{ + s64 pixel_rate; + + v4l2_ctrl_handler_init(&ov7251->ctrls, 7); + ov7251->ctrls.lock = &ov7251->lock; + + v4l2_ctrl_new_std(&ov7251->ctrls, &ov7251_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&ov7251->ctrls, &ov7251_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + ov7251->exposure = v4l2_ctrl_new_std(&ov7251->ctrls, &ov7251_ctrl_ops, + V4L2_CID_EXPOSURE, 1, 32, 1, 32); + ov7251->gain = v4l2_ctrl_new_std(&ov7251->ctrls, &ov7251_ctrl_ops, + V4L2_CID_GAIN, 16, 1023, 1, 16); + v4l2_ctrl_new_std_menu_items(&ov7251->ctrls, &ov7251_ctrl_ops, + V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(ov7251_test_pattern_menu) - 1, + 0, 0, ov7251_test_pattern_menu); + + pixel_rate = pixel_rates[ov7251->link_freq_idx]; + ov7251->pixel_clock = v4l2_ctrl_new_std(&ov7251->ctrls, + &ov7251_ctrl_ops, + V4L2_CID_PIXEL_RATE, + pixel_rate, INT_MAX, + pixel_rate, pixel_rate); + ov7251->link_freq = v4l2_ctrl_new_int_menu(&ov7251->ctrls, + &ov7251_ctrl_ops, + V4L2_CID_LINK_FREQ, + ARRAY_SIZE(link_freq) - 1, + ov7251->link_freq_idx, + link_freq); + if (ov7251->link_freq) + ov7251->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; + if (ov7251->pixel_clock) + ov7251->pixel_clock->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + ov7251->sd.ctrl_handler = &ov7251->ctrls; + + if (ov7251->ctrls.error) { + v4l2_ctrl_handler_free(&ov7251->ctrls); + return ov7251->ctrls.error; + } + + return 0; +} + static int ov7251_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct ov7251 *ov7251; unsigned int rate = 0, clk_rate = 0; - s64 pixel_rate; int ret; int i; @@ -1571,46 +1617,10 @@ static int ov7251_probe(struct i2c_client *client) mutex_init(&ov7251->lock); - v4l2_ctrl_handler_init(&ov7251->ctrls, 7); - ov7251->ctrls.lock = &ov7251->lock; - - v4l2_ctrl_new_std(&ov7251->ctrls, &ov7251_ctrl_ops, - V4L2_CID_HFLIP, 0, 1, 1, 0); - v4l2_ctrl_new_std(&ov7251->ctrls, &ov7251_ctrl_ops, - V4L2_CID_VFLIP, 0, 1, 1, 0); - ov7251->exposure = v4l2_ctrl_new_std(&ov7251->ctrls, &ov7251_ctrl_ops, - V4L2_CID_EXPOSURE, 1, 32, 1, 32); - ov7251->gain = v4l2_ctrl_new_std(&ov7251->ctrls, &ov7251_ctrl_ops, - V4L2_CID_GAIN, 16, 1023, 1, 16); - v4l2_ctrl_new_std_menu_items(&ov7251->ctrls, &ov7251_ctrl_ops, - V4L2_CID_TEST_PATTERN, - ARRAY_SIZE(ov7251_test_pattern_menu) - 1, - 0, 0, ov7251_test_pattern_menu); - - pixel_rate = pixel_rates[ov7251->link_freq_idx]; - ov7251->pixel_clock = v4l2_ctrl_new_std(&ov7251->ctrls, - &ov7251_ctrl_ops, - V4L2_CID_PIXEL_RATE, - pixel_rate, INT_MAX, - pixel_rate, pixel_rate); - ov7251->link_freq = v4l2_ctrl_new_int_menu(&ov7251->ctrls, - &ov7251_ctrl_ops, - V4L2_CID_LINK_FREQ, - ARRAY_SIZE(link_freq) - 1, - ov7251->link_freq_idx, - link_freq); - if (ov7251->link_freq) - ov7251->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; - if (ov7251->pixel_clock) - ov7251->pixel_clock->flags |= V4L2_CTRL_FLAG_READ_ONLY; - - ov7251->sd.ctrl_handler = &ov7251->ctrls; - - if (ov7251->ctrls.error) { - dev_err(dev, "%s: control initialization error %d\n", - __func__, ov7251->ctrls.error); - ret = ov7251->ctrls.error; - goto free_ctrl; + ret = ov7251_init_ctrls(ov7251); + if (ret) { + dev_err_probe(dev, ret, "error during v4l2 ctrl init\n"); + goto destroy_mutex; } v4l2_i2c_subdev_init(&ov7251->sd, client, &ov7251_subdev_ops); @@ -1684,6 +1694,7 @@ free_entity: media_entity_cleanup(&ov7251->sd.entity); free_ctrl: v4l2_ctrl_handler_free(&ov7251->ctrls); +destroy_mutex: mutex_destroy(&ov7251->lock); return ret; |