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Move all the format configuration to the subdevice state and simplify the format handling, locking and initialization. Signed-off-by: Lad Prabhakar --- drivers/media/i2c/ov5645.c | 109 +++++++++++++------------------------ 1 file changed, 39 insertions(+), 70 deletions(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index 25c60afcc0ec..9497ec737cb7 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -89,7 +89,6 @@ struct ov5645 { struct v4l2_subdev sd; struct media_pad pad; struct v4l2_fwnode_endpoint ep; - struct v4l2_mbus_framefmt fmt; struct v4l2_rect crop; struct clk *xclk; @@ -850,49 +849,6 @@ static int ov5645_enum_frame_size(struct v4l2_subdev *subdev, return 0; } -static struct v4l2_mbus_framefmt * -__ov5645_get_pad_format(struct ov5645 *ov5645, - struct v4l2_subdev_state *sd_state, - unsigned int pad, - enum v4l2_subdev_format_whence which) -{ - switch (which) { - case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_state_get_format(sd_state, pad); - case V4L2_SUBDEV_FORMAT_ACTIVE: - return &ov5645->fmt; - default: - return NULL; - } -} - -static int ov5645_get_format(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_format *format) -{ - struct ov5645 *ov5645 = to_ov5645(sd); - - format->format = *__ov5645_get_pad_format(ov5645, sd_state, - format->pad, - format->which); - return 0; -} - -static struct v4l2_rect * -__ov5645_get_pad_crop(struct ov5645 *ov5645, - struct v4l2_subdev_state *sd_state, - unsigned int pad, enum v4l2_subdev_format_whence which) -{ - switch (which) { - case V4L2_SUBDEV_FORMAT_TRY: - return v4l2_subdev_state_get_crop(sd_state, pad); - case V4L2_SUBDEV_FORMAT_ACTIVE: - return &ov5645->crop; - default: - return NULL; - } -} - static int ov5645_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) @@ -903,33 +859,30 @@ static int ov5645_set_format(struct v4l2_subdev *sd, const struct ov5645_mode_info *new_mode; int ret; - __crop = __ov5645_get_pad_crop(ov5645, sd_state, format->pad, - format->which); - + __crop = v4l2_subdev_state_get_crop(sd_state, 0); new_mode = v4l2_find_nearest_size(ov5645_mode_info_data, - ARRAY_SIZE(ov5645_mode_info_data), - width, height, - format->format.width, format->format.height); + ARRAY_SIZE(ov5645_mode_info_data), + width, height, format->format.width, + format->format.height); __crop->width = new_mode->width; __crop->height = new_mode->height; if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - ret = v4l2_ctrl_s_ctrl_int64(ov5645->pixel_clock, - new_mode->pixel_clock); + ret = __v4l2_ctrl_s_ctrl_int64(ov5645->pixel_clock, + new_mode->pixel_clock); if (ret < 0) return ret; - ret = v4l2_ctrl_s_ctrl(ov5645->link_freq, - new_mode->link_freq); + ret = __v4l2_ctrl_s_ctrl(ov5645->link_freq, + new_mode->link_freq); if (ret < 0) return ret; ov5645->current_mode = new_mode; } - __format = __ov5645_get_pad_format(ov5645, sd_state, format->pad, - format->which); + __format = v4l2_subdev_state_get_format(sd_state, 0); __format->width = __crop->width; __format->height = __crop->height; __format->code = MEDIA_BUS_FMT_UYVY8_1X16; @@ -944,11 +897,15 @@ static int ov5645_set_format(struct v4l2_subdev *sd, static int ov5645_init_state(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state) { - struct v4l2_subdev_format fmt = { 0 }; - - fmt.which = sd_state ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; - fmt.format.width = 1920; - fmt.format.height = 1080; + struct v4l2_subdev_format fmt = { + .which = V4L2_SUBDEV_FORMAT_TRY, + .pad = 0, + .format = { + .code = MEDIA_BUS_FMT_UYVY8_1X16, + .width = ov5645_mode_info_data[1].width, + .height = ov5645_mode_info_data[1].height, + }, + }; ov5645_set_format(subdev, sd_state, &fmt); @@ -959,25 +916,27 @@ static int ov5645_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { - struct ov5645 *ov5645 = to_ov5645(sd); - if (sel->target != V4L2_SEL_TGT_CROP) return -EINVAL; - sel->r = *__ov5645_get_pad_crop(ov5645, sd_state, sel->pad, - sel->which); + sel->r = *v4l2_subdev_state_get_crop(sd_state, 0); return 0; } static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable) { struct ov5645 *ov5645 = to_ov5645(subdev); + struct v4l2_subdev_state *state; int ret; + state = v4l2_subdev_lock_and_get_active_state(&ov5645->sd); + if (enable) { ret = pm_runtime_resume_and_get(ov5645->dev); - if (ret < 0) + if (ret < 0) { + v4l2_subdev_unlock_state(state); return ret; + } ret = ov5645_set_register_array(ov5645, ov5645->current_mode->data, @@ -988,7 +947,7 @@ static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable) ov5645->current_mode->height); goto err_rpm_put; } - ret = v4l2_ctrl_handler_setup(&ov5645->ctrls); + ret = __v4l2_ctrl_handler_setup(&ov5645->ctrls); if (ret < 0) { dev_err(ov5645->dev, "could not sync v4l2 controls\n"); goto err_rpm_put; @@ -1013,6 +972,7 @@ static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable) goto stream_off_rpm_put; } + v4l2_subdev_unlock_state(state); return 0; err_rpm_put: @@ -1022,6 +982,7 @@ static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable) stream_off_rpm_put: pm_runtime_mark_last_busy(ov5645->dev); pm_runtime_put_autosuspend(ov5645->dev); + v4l2_subdev_unlock_state(state); return ret; } @@ -1032,7 +993,7 @@ static const struct v4l2_subdev_video_ops ov5645_video_ops = { static const struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops = { .enum_mbus_code = ov5645_enum_mbus_code, .enum_frame_size = ov5645_enum_frame_size, - .get_fmt = ov5645_get_format, + .get_fmt = v4l2_subdev_get_fmt, .set_fmt = ov5645_set_format, .get_selection = ov5645_get_selection, }; @@ -1213,12 +1174,17 @@ static int ov5645_probe(struct i2c_client *client) goto power_down; } - ov5645_init_state(&ov5645->sd, NULL); + ov5645->sd.state_lock = ov5645->ctrls.lock; + ret = v4l2_subdev_init_finalize(&ov5645->sd); + if (ret < 0) { + dev_err_probe(dev, ret, "subdev init error\n"); + goto power_down; + } ret = v4l2_async_register_subdev_sensor(&ov5645->sd); if (ret < 0) { dev_err_probe(dev, ret, "could not register v4l2 device\n"); - goto power_down; + goto error_subdev_cleanup; } pm_runtime_set_active(dev); @@ -1231,6 +1197,8 @@ static int ov5645_probe(struct i2c_client *client) return 0; +error_subdev_cleanup: + v4l2_subdev_cleanup(&ov5645->sd); power_down: ov5645_set_power_off(dev); free_entity: @@ -1247,6 +1215,7 @@ static void ov5645_remove(struct i2c_client *client) struct ov5645 *ov5645 = to_ov5645(sd); v4l2_async_unregister_subdev(&ov5645->sd); + v4l2_subdev_cleanup(sd); media_entity_cleanup(&ov5645->sd.entity); v4l2_ctrl_handler_free(&ov5645->ctrls); pm_runtime_disable(ov5645->dev);