From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pdx-out-002.esa.us-west-2.outbound.mail-perimeter.amazon.com (pdx-out-002.esa.us-west-2.outbound.mail-perimeter.amazon.com [44.246.1.125]) (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 9A42933F8BA; Mon, 2 Mar 2026 18:44:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=44.246.1.125 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772477049; cv=none; b=j6OQG7sMC9IEMqHMdNmHYIBEmBVhc6LvRHCO6TuK5rJrakECT60U9rmWWJgm6k8E0mWamU6Rh7cujHQFba2e3xlkPhuqGa6KFTklDoVe/rVTa1aAfMSEx6BEJSwfxjhwC8h4fi8C//AyRzcNJw3liOzQmBJCbIITj4+5gv2fTA4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772477049; c=relaxed/simple; bh=TEjyPmG9mj2FxkWtffjjLhIEPXudRu0BFcF6wsxqE6k=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=mkwp7TuQT0YhttCGXCcTJJ8LOPvMW+4ezJQ7T/cre7HNeNsZSv0eqtOCLftVulirMKY9OiDl5nqFXnzyOA6Xk4E0MZ+HiYydT4xwbpluxt+AOTF3xLTj41Mbgj2Rf8Eas3sBsXR4IJ/LHNaxVfOlpVBbVQNQg1rYeFXF4amxXog= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com; spf=pass smtp.mailfrom=amazon.com; dkim=pass (2048-bit key) header.d=amazon.com header.i=@amazon.com header.b=RBEfIAmf; arc=none smtp.client-ip=44.246.1.125 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amazon.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=amazon.com header.i=@amazon.com header.b="RBEfIAmf" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazoncorp2; t=1772477048; x=1804013048; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=TEjyPmG9mj2FxkWtffjjLhIEPXudRu0BFcF6wsxqE6k=; b=RBEfIAmf8mkPy3MNCDTmHTqkkWyBvgIhgrQ/t0OgNMCKhywM2i/aNTE1 B/zvPk0wWpm7Y4a1PZpi8R8CAZolu1K5/8UaTTcgH16liVpl3oTx+U0j+ 2/+k7LQULdrFxoPjJ6ruvsdENrIF6jmhTrg2z5nyQwlt3rzlr05O01zop 1rSaiREnfJ2DchBe8tJRe/SmQSoi0NBf3jsufT0wTbh6+/lRMqs0whU3m 6ab9N4RyPqfWE3OEhsKFFbcAPnyBILhj5CVFz38uok+pZbWcVeXyio0Nn 8mV6QK+ng/9+oy1DLm4elDRhCRKwau5tcYdBJ1xvlzB4rtytJK3ffOzhx g==; X-CSE-ConnectionGUID: RzhCn56mTkWR1r9a69Zc0w== X-CSE-MsgGUID: EIy7z1TuS8qkgqFDz+wUPQ== X-IronPort-AV: E=Sophos;i="6.21,320,1763424000"; d="scan'208";a="14110907" Received: from ip-10-5-0-115.us-west-2.compute.internal (HELO smtpout.naws.us-west-2.prod.farcaster.email.amazon.dev) ([10.5.0.115]) by internal-pdx-out-002.esa.us-west-2.outbound.mail-perimeter.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Mar 2026 18:44:08 +0000 Received: from EX19MTAUWB001.ant.amazon.com [205.251.233.51:13535] by smtpin.naws.us-west-2.prod.farcaster.email.amazon.dev [10.0.51.143:2525] with esmtp (Farcaster) id 11ea19a8-a946-4843-87fa-609b495f317e; Mon, 2 Mar 2026 18:44:08 +0000 (UTC) X-Farcaster-Flow-ID: 11ea19a8-a946-4843-87fa-609b495f317e Received: from EX19D001UWA001.ant.amazon.com (10.13.138.214) by EX19MTAUWB001.ant.amazon.com (10.250.64.248) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.37; Mon, 2 Mar 2026 18:44:07 +0000 Received: from bcd074ae11bb.amazon.com (10.187.170.14) by EX19D001UWA001.ant.amazon.com (10.13.138.214) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.37; Mon, 2 Mar 2026 18:44:07 +0000 From: Cory Keitz To: David Heidelberg CC: , , "Bryan O'Donoghue" , Kieran Bingham , Cory Keitz Subject: Re: [PATCH WIP v4 0/9] media: camss: Add support for C-PHY configuration on Qualcomm platforms Date: Mon, 2 Mar 2026 10:43:59 -0800 Message-ID: <20260302184359.19394-1-ckeitz@amazon.com> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20260301-qcom-cphy-v4-0-e53316d2cc65@ixit.cz> References: <20260301-qcom-cphy-v4-0-e53316d2cc65@ixit.cz> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: EX19D038UWC004.ant.amazon.com (10.13.139.229) To EX19D001UWA001.ant.amazon.com (10.13.138.214) Hi David, I've been working on CPHY support for sa8775p / csid-gen3 on 6.6 and have a similar patch set. The approach here aligns well with what I've done, good to see this infrastructure going upstream. I've implemented the following for SA8775P that can be added on top of your series once it lands: - CSI2_RX_CFG0_PHY_TYPE_SEL in camss-csid-gen3.c - CSIPHY v1.3.1 register tables for sa8775p - Data rate-specific tuning for 5 bandwidth tiers (1.5/1.7/2.5/3.5/4.5 Gsps) I've only tested on a 6.6 kernel so far, not on mainline, so I can't give a Tested-by yet. I can confirm the settle count calculation and PHY selection approach are in line with what I have tested. Acked-by: Cory Keitz Thanks, Cory