From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 61732246789; Wed, 28 May 2025 13:35:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748439351; cv=none; b=cfDmJ+HA9aTGSXFEFfdwPNm0288G/3+4PBSMrnPYFSCu7S10weSfrdzqmd7m8XctZ8f6atRdB7J73EGKFQkR6ScQSQTPUnZrsnmnbgZn/ZaNfr2GBoZeFzzLKxYxrKjfoLQMqcsGf+sm/9jp/eIc54//6CqJBuej4+PaTjIFFXQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748439351; c=relaxed/simple; bh=knk8q/FALEdjxGDuprxqQZMXz1KpNrrRmanSda0rE9Y=; h=Content-Type:Date:Message-Id:To:Subject:Cc:From:References: In-Reply-To; b=ZXQ6xZlAJ7oucAsdZnG1LA+zXg7gFZ0j5VDq+sPJW8a84hp3Zqr0JDISovYhojvZrKmDNdnRMyy1mbqU5HimmCOnQ7P9emUJcgfHlvsP+iwMeE1NziJ5nmKWv+Rc+U9QRiUJ4HfDxwouwHSrnE250x/ACknGicKoUgfZwNT7cRs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=r89pZ3Wd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="r89pZ3Wd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6F396C4CEE7; Wed, 28 May 2025 13:35:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748439350; bh=knk8q/FALEdjxGDuprxqQZMXz1KpNrrRmanSda0rE9Y=; h=Date:To:Subject:Cc:From:References:In-Reply-To:From; b=r89pZ3Wdo58sTUeYve6Z5etikGXEkbsTZZLsstU3BSl7yQb2w3O0x086ke1cXkE11 Wk6bi1CWkXiEui30ORYSiE3pjAuIZmjnvpGuN+se+sB32KLPiuBYQ3rywb33VoJ3Qa okX8PIH7HjV4K51cDIXqVaEUGP4c1oSyRJK5+5OxcO6FJYkKBm5uU3zLXZq8Ri+tVp rTN45IXVzpegS73DEUgEbJxytYo9dYz78bqBQrsqVSNoE4sia5dJiW7y+YLS+bAZ/n FtSHe5t9O2FUfa41JRb5NJa2OoEBmU5v9pOKh817aSxskdjU1QeD3ljZEqf9XMqsLo kc4dtZVrRQI/Q== Content-Type: multipart/signed; boundary=a01ec67d579d790ebeab352c5a5d5a4c98173c681872122f1d16c4e94ddd; micalg=pgp-sha384; protocol="application/pgp-signature" Date: Wed, 28 May 2025 15:35:46 +0200 Message-Id: To: "Aradhya Bhatia" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , "Tomi Valkeinen" , "Jyri Sarha" Subject: Re: [PATCH v9 4/4] drm/tidss: Add OLDI bridge support Cc: "Maarten Lankhorst" , "Thomas Zimmermann" , "Maxime Ripard" , "David Airlie" , "Laurent Pinchart" , "Simona Vetter" , "Nishanth Menon" , "Vignesh Raghavendra" , "Devarsh Thakkar" , "Praneeth Bajjuri" , "Udit Kumar" , "Jayesh Choudhary" , "Francesco Dolcini" , "Alexander Sverdlin" , "DRI Development List" , "Devicetree List" , "Linux Kernel List" From: "Michael Walle" X-Mailer: aerc 0.16.0 References: <20250528122544.817829-1-aradhya.bhatia@linux.dev> <20250528122544.817829-5-aradhya.bhatia@linux.dev> In-Reply-To: <20250528122544.817829-5-aradhya.bhatia@linux.dev> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: --a01ec67d579d790ebeab352c5a5d5a4c98173c681872122f1d16c4e94ddd Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 On Wed May 28, 2025 at 2:25 PM CEST, Aradhya Bhatia wrote: > From: Aradhya Bhatia > > The AM62x and AM62Px SoCs feature 2 OLDI TXes each, which makes it > possible to connect them in dual-link or cloned single-link OLDI display > modes. The current OLDI support in tidss_dispc.c can only support for > a single OLDI TX, connected to a VP and doesn't really support > configuration of OLDIs in the other modes. The current OLDI support in > tidss_dispc.c also works on the principle that the OLDI output can only > be served by one, and only one, DSS video-port. This isn't the case in > the AM62Px SoC, where there are 2 DSS controllers present that share the > OLDI TXes. > > Having their own devicetree and their own bridge entity will help > support the various display modes and sharing possiblilities of the OLDI > hardware. > > For all these reasons, add support for the OLDI TXes as DRM bridges. > > Signed-off-by: Aradhya Bhatia > Signed-off-by: Aradhya Bhatia Tested-by: Michael Walle # on am67a (with local patches from downstream for DSS support) Thanks, -michael --a01ec67d579d790ebeab352c5a5d5a4c98173c681872122f1d16c4e94ddd Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iKgEABMJADAWIQTIVZIcOo5wfU/AngkSJzzuPgIf+AUCaDcRMxIcbXdhbGxlQGtl cm5lbC5vcmcACgkQEic87j4CH/j14QGAhZrSdUr0WUS2+40Cu+09ap7KmA0xJXOl kBaZaFsgOAQPknZDiT5jW3JdM/NC+9a2AYCjb3vFpm/xWsU0e7rREQ/lVfuS+lze HVJTtpGmGdwseReGa8Xo16GwG2hExmjdjpU= =hq/P -----END PGP SIGNATURE----- --a01ec67d579d790ebeab352c5a5d5a4c98173c681872122f1d16c4e94ddd--