linux-kernel - Re: [PATCH 1/2] video:omap2:dss: fix timings for VENC to match what omapdrm expects

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Message-ID: <5667E3D0.8010600@ti.com>
Date:	Wed, 9 Dec 2015 10:18:24 +0200
From:	Tomi Valkeinen <tomi.valkeinen@...com>
To:	"H. Nikolaus Schaller" <hns@...delico.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>
CC:	David Airlie <airlied@...ux.ie>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	<dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
	<linux-omap@...r.kernel.org>, <linux-fbdev@...r.kernel.org>,
	<gta04-owner@...delico.com>, <notasas@...il.com>
Subject: Re: [PATCH 1/2] video:omap2:dss: fix timings for VENC to match what
 omapdrm expects


On 13/11/15 12:29, H. Nikolaus Schaller wrote:
> Otherwise check_timings fails and we get a "has no modes" message
> from xrandr.
> 
> This fix makes the venc assume PAL and NTSC timings that match the
> timings synthetized by copy_timings_drm_to_omap() from omapdrm
> mode settings so that check_timings() succeeds.
> 
> Tested on: BeagleBoard XM, GTA04 and OpenPandora
> 
> Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
> ---
>  drivers/video/fbdev/omap2/dss/venc.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)

I've picked this up.

With this patch and the one below I can get tv-out working on my very old
beagleboard, and it seems to work with X also. It doesn't start automatically
as the connection state is unknown, but doing "xrandr --output None-1 --auto"
was all I needed to enable it.

 Tomi

From a4274600a5a67256b91266b0d2624b9c9028909b Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@...com>
Date: Tue, 8 Dec 2015 18:32:14 +0200
Subject: [PATCH] drm/omap: fix fbdev pix format to support all platforms

omap_fbdev always creates a framebuffer with ARGB8888 pixel format. On
OMAP3 we have VIDEO1 overlay that does not support ARGB8888, and on
OMAP2 none of the overlays support ARGB888.

This patch changes the omap_fbdev's fb to XRGB8888, which is supported
by all platforms.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...com>

diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index b8e4cdec28c3..24f92bea39c7 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -112,11 +112,8 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
 	dma_addr_t paddr;
 	int ret;
 
-	/* only doing ARGB32 since this is what is needed to alpha-blend
-	 * with video overlays:
-	 */
 	sizes->surface_bpp = 32;
-	sizes->surface_depth = 32;
+	sizes->surface_depth = 24;
 
 	DBG("create fbdev: %dx%d@%d (%dx%d)", sizes->surface_width,
 			sizes->surface_height, sizes->surface_bpp,


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