From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fllvem-ot03.ext.ti.com (fllvem-ot03.ext.ti.com [198.47.19.245]) (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 05C222E1741; Thu, 14 Aug 2025 11:06:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.19.245 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755169587; cv=none; b=dWCKrbiPk4bY3jk5cnlnRlp9LyISyvGYdlZ6DQ3iD2iGW+9OtfTSgLE0wFPL0Cw4iMd06i43aPcXW5ViIQMsXUwKGWcBSAeGMRGz5OjGFTrTfSnX3VNcGaFQpHbky2DJoLqPMVIc/WiLx3t+A6U2PMhARp8WDbk449Rs7UvGEcU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755169587; c=relaxed/simple; bh=rT8vpugLy20aEThSawYZskApeynAixeH8erAiCJiS8A=; h=Date:From:To:CC:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=JX7Vo9By0uabN9VfHfHzPLVq9DmJbG9dThjYz9l6hn+zH0CqZOxifdwnFG806zMR1eNnLhlRVmmUBRS6gaMpIIQv4H2bh8XPyElxMRqTT5duEU49nhPtu/hCMi84r4sHSg7+x50NItUcp4RVzOpOiB+I+1CzLlKp+igX761C9Go= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=GXBZcrUX; arc=none smtp.client-ip=198.47.19.245 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="GXBZcrUX" Received: from lelvem-sh02.itg.ti.com ([10.180.78.226]) by fllvem-ot03.ext.ti.com (8.15.2/8.15.2) with ESMTP id 57EB6ERR1866430; Thu, 14 Aug 2025 06:06:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1755169575; bh=eXx4QX6GlD1ye8FFz2m4mlJAlk6n+EGxro0PcZGIkPw=; h=Date:From:To:CC:Subject:References:In-Reply-To; b=GXBZcrUXGbzBJoBc6Y76HkE6W6wG2F8A4R4wVqO2nO8Z0pBUdThZ8Uj7nLXM3WilB CnLYuzm/hs57jA1nA48D1u4WAfArhwZTD53LdimriHiaoWIL9k6qo/WmEzCuc9htvf nbLRGP6IKsOt0NWly2fis7w1lcrynndCIdCyT3AU= Received: from DLEE112.ent.ti.com (dlee112.ent.ti.com [157.170.170.23]) by lelvem-sh02.itg.ti.com (8.18.1/8.18.1) with ESMTPS id 57EB6E541669453 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA256 bits=128 verify=FAIL); Thu, 14 Aug 2025 06:06:14 -0500 Received: from DLEE109.ent.ti.com (157.170.170.41) by DLEE112.ent.ti.com (157.170.170.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.55; Thu, 14 Aug 2025 06:06:14 -0500 Received: from lelvem-mr05.itg.ti.com (10.180.75.9) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.55 via Frontend Transport; Thu, 14 Aug 2025 06:06:14 -0500 Received: from localhost (uda0133052.dhcp.ti.com [128.247.81.232]) by lelvem-mr05.itg.ti.com (8.18.1/8.18.1) with ESMTP id 57EB6EsG3819943; Thu, 14 Aug 2025 06:06:14 -0500 Date: Thu, 14 Aug 2025 06:06:14 -0500 From: Nishanth Menon To: Tomi Valkeinen CC: , , , Robert Nelson , Conor Dooley , Krzysztof Kozlowski , Rob Herring , David Airlie , Maxime Ripard , Laurent Pinchart , Neil Armstrong , Jason Kridner , Subject: Re: [PATCH V2 3/3] drm/bridge: it66121: Add it66122 support Message-ID: <20250814110614.ziwsadnrxuoxknpk@oxidation> References: <20250813204106.580141-1-nm@ti.com> <20250813204106.580141-4-nm@ti.com> <0c684542-aacb-4e8c-a1c0-7fc0da78c733@ideasonboard.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <0c684542-aacb-4e8c-a1c0-7fc0da78c733@ideasonboard.com> X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea On 13:32-20250814, Tomi Valkeinen wrote: Thanks for looking at this closer, Tomi. > > On 13/08/2025 23:41, Nishanth Menon wrote: > > The IT66122 is a drop in replacement for the IT66122. The part is ^^ Uggh.. I just realized I made a typo here -> should have stated: " "The IT66122 is a drop in replacement for the IT66121." > > register compatible with what we use of the IT66121. The only relevant > > The intro letter said "practical purposes is drop in replacement for > IT66121". Here you say "with what we use of the IT66121". > > What does that mean? Are they identical, except the IDs? Or are they The only difference we had been told at the time about is that they are identical from operation perspective except for the ID register (I understand it is some sort of manufacturing change or something that is not visible to s/w - Robert/Jason could add more). > different, but the features and registers this driver uses are > identical? Or different, but only identical wrt. the driver's features > TI uses? Minor clarification: This is used on BeagleBoard.org foundation boards BeagleY-AI to be specific and not on Texas Instruments EVMs/SK. Personally, I have just looked at the features that BeagleY-AI platform uses. Though, searching via llms tells me there may be additional features, but I don't have the specific details to confirm beyond what the BeagleY-AI platform does. I am hoping BeagleBoard.org Foundation folks OR anyone on the list who have contacts with ITE Tech. INC. could probably add information. -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D https://ti.com/opensource