On Wed, Sep 05, 2018 at 04:46:01PM -0400, Sean Paul wrote:
> From: Sean Paul <seanpaul@xxxxxxxxxxxx>
>
> I ran across this last week when I was trying to get this function to
> work. It's useful to have the scale values in the log upon failure.
>
> Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
> drivers/gpu/drm/drm_atomic_helper.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index 2c23a48482da..1725546d5105 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -758,7 +758,8 @@ int drm_atomic_helper_check_plane_state(struct drm_plane_state *plane_state,
> hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
> vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale);
> if (hscale < 0 || vscale < 0) {
> - DRM_DEBUG_KMS("Invalid scaling of plane\n");
> + DRM_DEBUG_KMS("Invalid scaling of plane (%d/%d)\n",
> + hscale, vscale);
> drm_rect_debug_print("src: ", &plane_state->src, true);
> drm_rect_debug_print("dst: ", &plane_state->dst, false);
> return -ERANGE;
> --
> Sean Paul, Software Engineer, Google / Chromium OS
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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