On 31 May 2013 18:33, Arun Kumar K <arun.kk@xxxxxxxxxxx> wrote:
> FIMC-IS has two hardware scalers named as scaler-codec and
> scaler-preview. This patch adds the common code handling the
> video nodes and subdevs of both the scalers.
>
> Signed-off-by: Arun Kumar K <arun.kk@xxxxxxxxxxx>
> Signed-off-by: Kilyeon Im <kilyeon.im@xxxxxxxxxxx>
> ---
[snip]
> +static int scaler_video_capture_open(struct file *file)
> +{
> + struct fimc_is_scaler *ctx = video_drvdata(file);
> + int ret = 0;
> +
> + /* Check if opened before */
> + if (ctx->refcount >= FIMC_IS_MAX_INSTANCES) {
> + pr_err("All instances are in use.\n");
> + return -EBUSY;
> + }
> +
> + INIT_LIST_HEAD(&ctx->wait_queue);
> + ctx->wait_queue_cnt = 0;
> + INIT_LIST_HEAD(&ctx->run_queue);
> + ctx->run_queue_cnt = 0;
> +
> + ctx->fmt = NULL;
> + ctx->refcount++;
> +
> + return ret;
Directly return 0.
> +}
> +
> +static int scaler_video_capture_close(struct file *file)
> +{
> + struct fimc_is_scaler *ctx = video_drvdata(file);
> + int ret = 0;
> +
> + ctx->refcount--;
> + ctx->capture_state = 0;
> + vb2_fop_release(file);
> +
> + return ret;
ditto
--
With warm regards,
Sachin
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