Hi, Julien:
On Wed, 2024-01-10 at 15:14 +0100, Julien Stephan wrote:
>
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> From: Phi-bang Nguyen <pnguyen@xxxxxxxxxxxx>
>
> This driver provides a path to bypass the SoC ISP so that image data
> coming from the SENINF can go directly into memory without any image
> processing. This allows the use of an external ISP.
>
> Signed-off-by: Phi-bang Nguyen <pnguyen@xxxxxxxxxxxx>
> Signed-off-by: Florian Sylvestre <fsylvestre@xxxxxxxxxxxx>
> [Paul Elder fix irq locking]
> Signed-off-by: Paul Elder <paul.elder@xxxxxxxxxxxxxxxx>
> Co-developed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Co-developed-by: Julien Stephan <jstephan@xxxxxxxxxxxx>
> Signed-off-by: Julien Stephan <jstephan@xxxxxxxxxxxx>
> ---
[snip]
> +
> +static void mtk_cam_cmos_vf_enable(struct mtk_cam_dev *cam_dev,
> + bool enable, bool pak_en)
> +{
> + struct device *dev = cam_dev->dev;
> + unsigned long flags = 0;
> +
> + if (pm_runtime_get_sync(dev) < 0) {
> + dev_err(dev, "failed to get pm_runtime\n");
> + goto out;
> + }
> +
> + spin_lock_irqsave(&cam_dev->irqlock, flags);
The comment of cam_dev->irqlock is "Protects the buffer list". Why do
you protect hw_enable/hw_disable? And I think the naming of irqlock
should be changed to 'buf_list_lock'.
Regards,
CK
> + if (enable)
> + (*cam_dev->hw_functions-
> >mtk_cam_cmos_vf_hw_enable)(cam_dev, pak_en);
> + else
> + (*cam_dev->hw_functions-
> >mtk_cam_cmos_vf_hw_disable)(cam_dev, pak_en);
> + spin_unlock_irqrestore(&cam_dev->irqlock, flags);
> +
> +out:
> + pm_runtime_put_autosuspend(dev);
> +}
> +
