Hi Laurent,
Thankyou for the patch,
This looks good, and passes the tests.
On 16/08/17 00:03, Laurent Pinchart wrote:
> There is no point in accepting fully off-screen planes as they won't be
> displayed. Reject them in the atomic check.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/rcar-du/rcar_du_plane.c | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
> index 4f076c364f25..714e02960635 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
> @@ -569,6 +569,8 @@ int __rcar_du_plane_atomic_check(struct drm_plane *plane,
> struct drm_plane_state *state,
> const struct rcar_du_format_info **format)
> {
> + const struct drm_display_mode *mode;
> + struct drm_crtc_state *crtc_state;
> struct drm_device *dev = plane->dev;
>
> if (!state->fb || !state->crtc) {
> @@ -582,6 +584,20 @@ int __rcar_du_plane_atomic_check(struct drm_plane *plane,
> return -EINVAL;
> }
>
> + crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
> + if (IS_ERR(crtc_state))
> + return PTR_ERR(crtc_state);
> +
> + mode = &crtc_state->adjusted_mode;
> + if (state->crtc_x >= mode->hdisplay ||
> + state->crtc_y >= mode->vdisplay ||
> + state->crtc_x + (int)state->crtc_w <= 0 ||
> + state->crtc_y + (int)state->crtc_h <= 0) {
> + dev_dbg(dev->dev, "%s: plane can't be fully off-screen\n",
> + __func__);
> + return -EINVAL;
> + }
> +
> *format = rcar_du_format_info(state->fb->format->format);
> if (*format == NULL) {
> dev_dbg(dev->dev, "%s: unsupported format %08x\n", __func__,
>
