On Mon, Jun 22, 2015 at 01:37:46PM +0300, Laurent Pinchart wrote:
> The enable field needs to be kept in sync with the mode_blob field. Call
> drm_atomic_set_mode_prop_for_crtc() instead of setting enable to false
> in order to dereference the mode blob correctly.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/drm_atomic_helper.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)
>
> Changes since v1:
>
> - Check the return value of drm_atomic_set_mode_prop_for_crtc()
> - Drop the num_connectors local variable
Random process bikeshed: I'm one of the kernel maintainers who prefers to
keep the per-patch changelog (since often submitters fail to reflect all
the discussion properly in the commit message itself).
Fixed that and applied your patch to drm-misc, thanks.
-Daniel
>
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index 536ae4da4665..ec3d65a497ac 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -1561,10 +1561,14 @@ static int update_output_state(struct drm_atomic_state *state,
> if (crtc == set->crtc)
> continue;
>
> - crtc_state->enable =
> - drm_atomic_connectors_for_crtc(state, crtc);
> - if (!crtc_state->enable)
> + if (!drm_atomic_connectors_for_crtc(state, crtc)) {
> + ret = drm_atomic_set_mode_prop_for_crtc(crtc_state,
> + NULL);
> + if (ret < 0)
> + return ret;
> +
> crtc_state->active = false;
> + }
> }
>
> return 0;
> --
> Regards,
>
> Laurent Pinchart
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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