From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@bootlin.com (Maxime Ripard) Date: Tue, 27 Nov 2018 09:31:23 +0100 Subject: [PATCH v2 02/43] drm/sun4i: frontend: Replace ARGB with XRGB as supported format In-Reply-To: <20181123092515.2511-3-paul.kocialkowski@bootlin.com> References: <20181123092515.2511-1-paul.kocialkowski@bootlin.com> <20181123092515.2511-3-paul.kocialkowski@bootlin.com> Message-ID: <20181127083123.ok6eftf2nd4arqe5@flea> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Nov 23, 2018 at 10:24:34AM +0100, Paul Kocialkowski wrote: > The frontend documentation (for the A33) mentions that ARGB is supported > as output, but with the alpha component always set to 0xff. In practice, > this means that the alpha component cannot be preserved when going > through the frontend. Since the information is lost, ARGB is not > properly supported. > > As a result, expose the matching format supported by the frontend (both > for input and output) as XRGB instead of ARGB. > > Since ARGB was the selected format for connecting the frontend to the > backend, change it to XRGB to reflect this as well. > > The A31 and A80 SoCs apparently have a bit to enable proper alpha, > but this is not supported at this point (see the comment already in the > code). > > Signed-off-by: Paul Kocialkowski Applied, thanks! Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 228 bytes Desc: not available URL: