linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	linux-renesas-soc@vger.kernel.org,
	dri-devel@lists.freedesktop.org
Cc: Alexandru-Cosmin Gheorghe <Alexandru-Cosmin.Gheorghe@arm.com>,
	Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
	David Airlie <airlied@linux.ie>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 2/2] drm: rcar-du: Enable alpha property on primary planes
Date: Wed, 19 Sep 2018 16:56:59 +0100	[thread overview]
Message-ID: <20180919155700.10342-3-kieran.bingham+renesas@ideasonboard.com> (raw)
In-Reply-To: <20180919155700.10342-1-kieran.bingham+renesas@ideasonboard.com>

If the alpha property is not added to a plane, a default value will be
used, which can result in a non-visible layer if the alpha is
initialised as 0.

Provide an alpha blend property on all planes.

Fixes: 161ad653d6c9 ("drm: rcar-du: Use __drm_atomic_helper_plane_reset
instead of copying the logic")

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
---
 drivers/gpu/drm/rcar-du/rcar_du_plane.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
index 9e07758a755c..72399a19d8a6 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
@@ -783,13 +783,18 @@ int rcar_du_planes_init(struct rcar_du_group *rgrp)
 		drm_plane_helper_add(&plane->plane,
 				     &rcar_du_plane_helper_funcs);
 
+		/*
+		 * The alpha property needs to be initialised on all planes
+		 * to ensure the correct setting at the output.
+		 */
+		drm_plane_create_alpha_property(&plane->plane);
+
 		if (type == DRM_PLANE_TYPE_PRIMARY)
 			continue;
 
 		drm_object_attach_property(&plane->plane.base,
 					   rcdu->props.colorkey,
 					   RCAR_DU_COLORKEY_NONE);
-		drm_plane_create_alpha_property(&plane->plane);
 		drm_plane_create_zpos_property(&plane->plane, 1, 1, 7);
 	}
 
-- 
2.17.1


  parent reply	other threads:[~2018-09-19 15:57 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20180919155700.10342-1-kieran.bingham+renesas@ideasonboard.com>
2018-09-19 15:56 ` [PATCH 1/2] drm/atomic: Initialise planes with opaque alpha values Kieran Bingham
2018-09-19 16:15   ` Ville Syrjälä
2018-09-19 16:43     ` Alexandru-Cosmin Gheorghe
2018-09-20 10:03       ` Kieran Bingham
2018-09-20 10:19         ` Alexandru-Cosmin Gheorghe
2018-09-20 11:17   ` Laurent Pinchart
2018-09-19 15:56 ` Kieran Bingham [this message]
2018-09-20 11:22   ` [PATCH 2/2] drm: rcar-du: Enable alpha property on primary planes Laurent Pinchart
2018-11-21 18:29     ` Laurent Pinchart
2018-11-21 21:10       ` Kieran Bingham

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180919155700.10342-3-kieran.bingham+renesas@ideasonboard.com \
    --to=kieran.bingham+renesas@ideasonboard.com \
    --cc=Alexandru-Cosmin.Gheorghe@arm.com \
    --cc=airlied@linux.ie \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=laurent.pinchart@ideasonboard.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-renesas-soc@vger.kernel.org \
    --subject='Re: [PATCH 2/2] drm: rcar-du: Enable alpha property on primary planes' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
on how to clone and mirror all data and code used for this inbox