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 45AF41DF984; Mon, 21 Apr 2025 22:26:55 +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=1745274417; cv=none; b=RqHkwk8H21jL8UadqIPUQHZnI48r7nAdvBKUBEqXHOx4Qw2jZXuFrscB0Hvm9EDpxu4P5fCU3x3YX0AZa6dK3L1BWFv8ATKeuRNed/CLFxOj27iZw+UKOGFpoccWsVpm9+sGaEPn/X28r37k2OIKg9s0lMUqakJwsknGUyvGd7c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745274417; c=relaxed/simple; bh=sjB84uxPDLrSxZbudQCJO1bZYpvmP3+3SV0sD3RB5aU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=UT0VmCQbDTTa4iYhV3kar0kMP2kG/LGXraCoJFiGUobZUplddJphRQpEJZ0fKW5SOMshzGDh7K7u/CgUctHh1uveXOnTJ7f6Dtvf0tJ4UdnUJ05d6Wnpdtc1gRNKXfOuHB7BOISuvFRsQf8YjNMhE8SDdsiNVyxQ/HquZnXA6EI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=t9J69WdB; 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="t9J69WdB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7DB8DC4CEE4; Mon, 21 Apr 2025 22:26:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745274415; bh=sjB84uxPDLrSxZbudQCJO1bZYpvmP3+3SV0sD3RB5aU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=t9J69WdBBkV3WEGtVhU7DQwRwiwNhebcdw8EfDY4tpzK2HPX1q6/L1UU8nMvKiMEN 3hC99k9LoPNNdE331GHT4+vHtkpzaui3+DfTRw7pkItjJ+sdEftZ3IDlU7fF2nIzUu Z3eY1Jg1rjobEQkPCS70yeCx6DGtZC6vsswbG5CCddxesIWPGkExX0qNGVrj3EZEex XD72cUD/vWbnV9+w7DKOvJ7vW4Sdxaka+xf/XHEFw2kDjDKUEIfFs3fBOWc3lfbrGU jvertGBLyRu0A7QzasJ1qBbbEexZy1MOBiM+FEt1FQ2uSsyvEEzYolVpDyGvLoNU9t stAkkdDO/oALQ== Date: Mon, 21 Apr 2025 17:26:53 -0500 From: "Rob Herring (Arm)" To: Rishikesh Donadkar Cc: krzk+dt@kernel.org, mchehab@kernel.org, devarsht@ti.com, hverkuil-cisco@xs4all.nl, s-jain1@ti.com, jack.zhu@starfivetech.com, vigneshr@ti.com, linux-media@vger.kernel.org, jai.luthra@ideasonboard.com, laurent.pinchart@ideasonboard.com, changhuang.liang@starfivetech.com, linux-kernel@vger.kernel.org, tomi.valkeinen@ideasonboard.com, vaishnav.a@ti.com, y-abhilashchandra@ti.com, jai.luthra@linux.dev, devicetree@vger.kernel.org, mripard@kernel.org, sakari.ailus@linux.intel.com, conor+dt@kernel.org Subject: Re: [PATCH v3 01/13] dt-bindings: media: ti,j721e-csi2rx-shim: Support 32 dma chans Message-ID: <174527441344.3212247.14328786024565701263.robh@kernel.org> References: <20250417065554.437541-1-r-donadkar@ti.com> <20250417065554.437541-2-r-donadkar@ti.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <20250417065554.437541-2-r-donadkar@ti.com> On Thu, 17 Apr 2025 12:25:42 +0530, Rishikesh Donadkar wrote: > From: Jai Luthra > > The CSI2RX SHIM IP can support 32x DMA channels. These can be used to > split incoming "streams" of data on the CSI-RX port, distinguished by > MIPI Virtual Channel (or Data Type), into different locations in memory. > > Actual number of DMA channels allocated to CSI-RX is dependent on the > usecase, and can be modified using the K3 Resource Partitioning tool [1]. > So set the minimum channels as 1 and maximum as 32. > > Link: https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/10_00_07_04/exports/docs/linux/How_to_Guides/Host/K3_Resource_Partitioning_Tool.html [1] > Link: https://www.ti.com/lit/pdf/spruiv7 > Signed-off-by: Jai Luthra > Reviewed-by: Tomi Valkeinen > Signed-off-by: Rishikesh Donadkar > --- > .../bindings/media/ti,j721e-csi2rx-shim.yaml | 39 +++++++++++++++++-- > 1 file changed, 36 insertions(+), 3 deletions(-) > Reviewed-by: Rob Herring (Arm)