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From: "Inbaraj E" <inbaraj.e@samsung.com>
To: "'Krzysztof Kozlowski'" <krzk@kernel.org>,
	<mturquette@baylibre.com>, <sboyd@kernel.org>, <robh@kernel.org>,
	<krzk+dt@kernel.org>, <conor+dt@kernel.org>,
	<s.nawrocki@samsung.com>, <s.hauer@pengutronix.de>,
	<shawnguo@kernel.org>, <cw00.choi@samsung.com>,
	<rmfrfs@gmail.com>, <laurent.pinchart@ideasonboard.com>,
	<martink@posteo.de>, <mchehab@kernel.org>, <linux-fsd@tesla.com>,
	<will@kernel.org>, <catalin.marinas@arm.com>,
	<pankaj.dubey@samsung.com>, <shradha.t@samsung.com>,
	<ravi.patel@samsung.com>
Cc: <linux-clk@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <alim.akhtar@samsung.com>,
	<linux-samsung-soc@vger.kernel.org>, <kernel@puri.sm>,
	<kernel@pengutronix.de>, <festevam@gmail.com>,
	<linux-media@vger.kernel.org>, <imx@lists.linux.dev>,
	<linux-arm-kernel@lists.infradead.org>
Subject: RE: [PATCH v2 04/12] arm64: dts: fsd: Add CSI nodes
Date: Fri, 22 Aug 2025 19:27:09 +0530	[thread overview]
Message-ID: <00d101dc136c$aa037020$fe0a5060$@samsung.com> (raw)
In-Reply-To: <1919de68-99ea-47f7-b3d2-cae4611f9c52@kernel.org>


Hi Krzysztof,

Thanks for the review.

> 
> On 14/08/2025 16:09, Inbaraj E wrote:
> > There is a csi dma and csis interface that bundles together to allow
> 
> CSI DMA?
> What is CSIS?
> 
> > csi2 capture.
> 
> CSI2?

CSIS stands for Camera Serial Interface Slave.

Samsung v4.3 CSIS IP bundles both the CSIS link operation and the CSIS
DMA operation. The DMA-related operation are referred to as CSIS DMA and
are handled by the fsd-csis driver. The link related operations are
referred to simply as CSIS and are integrated into imx-mipi-csis driver.

I'll update the commit message and commit description accordingly,
and maintain consistency across the patches.

> 
> >
> > Signed-off-by: Inbaraj E <inbaraj.e@samsung.com>
> > ---
> >  arch/arm64/boot/dts/tesla/fsd-evb.dts |  96 +++++
> > +++ b/arch/arm64/boot/dts/tesla/fsd.dtsi
> > @@ -493,6 +493,558 @@ clock_mfc: clock-controller@12810000 {
> >  			clock-names = "fin_pll";
> >  		};
> >
> > +		mipicsis0: mipi-csis@12640000 {
> 
> Messed ordering. See DTS coding style.

I'll fix the ordering in next patchset.

> 
> Node names should be generic. See also an explanation and list of examples
> (not exhaustive) in DT specification:
> https://protect2.fireeye.com/v1/url?k=a30d23f8-c28636dd-a30ca8b7-
> 74fe485cbff6-ee12f8a711c584c8&q=1&e=b96506d8-2d5d-4303-b9e8-
> 0e1189db1585&u=https%3A%2F%2Fdevicetree-
> specification.readthedocs.io%2Fen%2Flatest%2Fchapter2-devicetree-
> basics.html%23generic-names-recommendation
> 

There is no generic name directly related to CSI apart from camera. That's
why I used mipi-csis. If preferred, I can move the name to csis or simply csi.
Please let me know which one is more appropriate.

Regards,
Inbaraj E


  reply	other threads:[~2025-08-22 13:57 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20250814140956epcas5p480aa24441933523484da5c241a201d3c@epcas5p4.samsung.com>
2025-08-14 14:09 ` [PATCH v2 00/12] Add FSD CSI support Inbaraj E
     [not found]   ` <CGME20250814141003epcas5p167e0a3d0ecc52fd8af17151cdddd031a@epcas5p1.samsung.com>
2025-08-14 14:09     ` [PATCH v2 01/12] dt-bindings: clock: Add CAM_CSI clock macro for FSD Inbaraj E
2025-08-18  8:47       ` (subset) " Krzysztof Kozlowski
     [not found]   ` <CGME20250814141009epcas5p153e4aacfc1ead3db8c9bb647c6e5c7c4@epcas5p1.samsung.com>
2025-08-14 14:09     ` [PATCH v2 02/12] clk: samsung: fsd: Add clk id for PCLK and PLL in CAM_CSI block Inbaraj E
2025-08-18  8:47       ` (subset) " Krzysztof Kozlowski
     [not found]   ` <CGME20250814141014epcas5p410d41ede7e8ae4f3cf8db6d041d03946@epcas5p4.samsung.com>
2025-08-14 14:09     ` [PATCH v2 03/12] dt-bindings: media: nxp: Add support for FSD SoC Inbaraj E
2025-08-18  8:24       ` Krzysztof Kozlowski
2025-08-22 13:39         ` Inbaraj E
2025-08-22 13:50           ` Krzysztof Kozlowski
2025-08-22 14:00             ` Inbaraj E
2025-08-23 15:37               ` Krzysztof Kozlowski
2025-08-25 12:50                 ` Inbaraj E
     [not found]   ` <CGME20250814141019epcas5p2f957b934d5b60d4649cf9c6abd6969d5@epcas5p2.samsung.com>
2025-08-14 14:09     ` [PATCH v2 04/12] arm64: dts: fsd: Add CSI nodes Inbaraj E
2025-08-18  8:26       ` Krzysztof Kozlowski
2025-08-22 13:57         ` Inbaraj E [this message]
2025-08-23 15:39           ` Krzysztof Kozlowski
2025-08-25 13:05             ` Inbaraj E
2025-08-26  8:36               ` Krzysztof Kozlowski
2025-08-26 10:08                 ` Inbaraj E
2025-08-26 11:43                 ` Laurent Pinchart
     [not found]   ` <CGME20250814141025epcas5p2b226c4eaab5d60d0e95f684e2ef930f2@epcas5p2.samsung.com>
2025-08-14 14:09     ` [PATCH v2 05/12] media: imx-mipi-csis: Move clk to mipi_csis_info structure Inbaraj E
2025-08-18  9:21       ` Laurent Pinchart
2025-08-23 13:11         ` Inbaraj E
     [not found]   ` <CGME20250814141030epcas5p45a75274697463bbca9cab12f776a4e8c@epcas5p4.samsung.com>
2025-08-14 14:09     ` [PATCH v2 06/12] media: imx-mipi-csis: Move irq flag and handler " Inbaraj E
     [not found]   ` <CGME20250814141036epcas5p1fc02cea3f97534303673eb8453b6a18f@epcas5p1.samsung.com>
2025-08-14 14:09     ` [PATCH v2 07/12] media: imx-mipi-csis: Add support to configure specific vc Inbaraj E
2025-08-18  9:33       ` Laurent Pinchart
2025-08-23 13:29         ` Inbaraj E
     [not found]   ` <CGME20250814141041epcas5p2b281659391a8e45c95e8db21d9867f98@epcas5p2.samsung.com>
2025-08-14 14:09     ` [PATCH v2 08/12] media: imx-mipi-csis: Add support to dump all vc regs Inbaraj E
2025-08-18  9:30       ` Laurent Pinchart
2025-08-23 13:15         ` Inbaraj E
     [not found]   ` <CGME20250814141046epcas5p3fd09b7e4ab34f521cf5ab548c41fb1d2@epcas5p3.samsung.com>
2025-08-14 14:09     ` [PATCH v2 09/12] media: imx-mipi-csis: Add support for FSD CSI Rx Inbaraj E
     [not found]   ` <CGME20250814141051epcas5p14dccee388087372973988aeebcb872cf@epcas5p1.samsung.com>
2025-08-14 14:09     ` [PATCH v2 10/12] dt-bindings: media: fsd: Document CSIS DMA controller Inbaraj E
2025-08-18  8:29       ` Krzysztof Kozlowski
2025-08-23  1:54         ` Inbaraj E
2025-08-18  8:45       ` Krzysztof Kozlowski
2025-08-23  2:39         ` Inbaraj E
2025-08-23 15:32           ` Krzysztof Kozlowski
2025-08-25 12:01             ` Inbaraj E
2025-08-25 12:25               ` Krzysztof Kozlowski
2025-08-24 21:15         ` Laurent Pinchart
2025-08-25  7:34           ` Krzysztof Kozlowski
     [not found]   ` <CGME20250814141057epcas5p21ca33641e42164886dc1bf404237876d@epcas5p2.samsung.com>
2025-08-14 14:09     ` [PATCH v2 11/12] arm64: defconfig: Enable FSD CSIS DMA driver Inbaraj E
2025-08-18  8:32       ` Krzysztof Kozlowski
2025-08-23  2:05         ` Inbaraj E
2025-08-23 15:31           ` Krzysztof Kozlowski
2025-08-25 11:54             ` Inbaraj E
     [not found]   ` <CGME20250814141103epcas5p14516cbe45c21d28ba9e231da99940aa1@epcas5p1.samsung.com>
2025-08-14 14:09     ` [PATCH v2 12/12] media: fsd-csis: Add support for FSD CSIS DMA Inbaraj E
2025-08-18  8:49       ` Krzysztof Kozlowski
2025-08-23 11:49         ` Inbaraj E
2025-08-23 15:34           ` Krzysztof Kozlowski
2025-08-25 12:46             ` Inbaraj E
2025-08-23 11:59         ` Inbaraj E
2025-08-18  8:22   ` [PATCH v2 00/12] Add FSD CSI support Krzysztof Kozlowski
2025-08-22 13:16     ` Inbaraj E

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