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 421E92E8DFF for ; Thu, 11 Sep 2025 09:50:31 +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=1757584232; cv=none; b=AAo+2THu5JdyzE+Mswzi2d8d1CjGFfnM9+mKE4NeiuSRO1591FLeUcmBateoigqFiCK37lSLcJBpnnuhPmF61+U2cvDX0+f5lhhjrD8dSTfjmrcIk7K0hu7SGjeaLKQs3Q4WBLM8r/dAQSdUyRtnDwynBqqv4rutzDib4jEsoSc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757584232; c=relaxed/simple; bh=pE2AURsoCMkJTm1mo4lJL7qjrrJQ0/YmWX+SwCL5yw0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=SBeblr+ctDo6n/GezU/vyaRfK+C+jdx9mmkd7U/oSUZz9cmd6OKHYjbdCL5j4JgiYHK+GVw/+okFVZOxGEhJzbhEnfPp6Z/8gm3FpcWAYxbbULnOdncBCPgYroTSQRX2gjpHDt0VhvrVZ6CMWK8NwLbjM/wbt8QsaGl9qRSXTTo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=c+TuKd/P; 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="c+TuKd/P" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 73A10C4CEF0; Thu, 11 Sep 2025 09:50:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757584231; bh=pE2AURsoCMkJTm1mo4lJL7qjrrJQ0/YmWX+SwCL5yw0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=c+TuKd/PMZh9aE4lEy42hRVmlu5OM/5HD2vW1Hw8oMLhPuBINeJxUp9cuelnQcIj7 uTFPQHYDVcYhMvfgtzRTfr1mAsH+i/b2nl7VfDYOZOMd1NEY2ywcKyEh/YwUJt+gxP cDzIM4qACVbgz067zS8aYhYQu+Kz868eSGDFjgglP1H7rt+s0ZJdr5aPdGUiS7nFbN Af3GuOe0RjtE8nYTo2JdP1ohuzT1DNZ1nFIADJyHpkTArfHiiWJxR69WTZLitBZ/6z jrWt63k8UIFbQaYlaGgAOyoXBkMZflHF7Rc1dC6+GRNU50ch7st3cbUMdTRX59sMOR 069Cq4N2yk5QQ== Date: Thu, 11 Sep 2025 11:50:29 +0200 From: Maxime Ripard To: Miguel Gazquez Cc: Dmitry Baryshkov , Phong LE , Neil Armstrong , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com, miquel.raynal@bootlin.com, kory.maincent@bootlin.com, romain.gantois@bootlin.com, praneeth@ti.com, Aradhya Bhatia Subject: Re: [PATCH] drm/bridge: ite-it66121: Add drm_connector support Message-ID: <20250911-innocent-daffodil-macaque-797f13@houat> References: <20250909-it66121-fix-v1-1-bc79ca83df17@bootlin.com> <6164422a-6265-4726-8da5-68bb8eafb9e6@bootlin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha384; protocol="application/pgp-signature"; boundary="jzouzmmvozrp6xum" Content-Disposition: inline In-Reply-To: <6164422a-6265-4726-8da5-68bb8eafb9e6@bootlin.com> --jzouzmmvozrp6xum Content-Type: text/plain; protected-headers=v1; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH] drm/bridge: ite-it66121: Add drm_connector support MIME-Version: 1.0 On Thu, Sep 11, 2025 at 10:51:06AM +0200, Miguel Gazquez wrote: >=20 >=20 > Le 10/09/2025 =E0 04:28, Dmitry Baryshkov a =E9crit=A0: > > On Tue, Sep 09, 2025 at 06:16:43PM +0200, Miguel Gazquez wrote: > > > From: Aradhya Bhatia > > >=20 > > > Add support for DRM connector and make the driver support the older > > > format of attaching connectors onto the encoder->bridge->connector > > > chain. > > > This makes the driver compatible with display controller that only > > > supports the old format. > > >=20 > > > [Miguel Gazquez: Rebased + made driver work with or without > > > DRM_BRIDGE_ATTACH_NO_CONNECTOR] > >=20 > > What is the use case for not using DRM_BRIDGE_ATTACH_NO_CONNECTOR? >=20 > Some display controller drivers (like the tilcdc) call drm_bridge_attach > without DRM_BRIDGE_ATTACH_NO_CONNECTOR, so the bridge must support both w= ith > and without DRM_BRIDGE_ATTACH_NO_CONNECTOR to be compatible with all disp= lay > controllers. I'd rather convert tilcdc to use DRM_BRIDGE_ATTACH_NO_CONNECTOR then. Maxime --jzouzmmvozrp6xum Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iJUEABMJAB0WIQTkHFbLp4ejekA/qfgnX84Zoj2+dgUCaMKbYQAKCRAnX84Zoj2+ dgJSAYDdU+th+2A0F5q6ZC2ooIL5tuW/KSkDnDvtGQFsorRAhoAZKfsPOUWeNRAJ BYvVimEBf26l9rXHppvS+ufirPVemWVrWyLWv+CKfBIRlyFXVx8oq75VNyn21Thi 4ZkctmwVYw== =CR9i -----END PGP SIGNATURE----- --jzouzmmvozrp6xum--