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Fri, 7 Nov 2025 19:42:00 +0100 (CET) Message-ID: <074cd08e-0412-49f9-8dd9-b1f96eb11717@collabora.com> Date: Fri, 7 Nov 2025 19:41:59 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v14 00/18] media: rockchip: add a driver for the rockchip camera interface To: Sakari Ailus Cc: Mehdi Djait , Maxime Chevallier , =?UTF-8?Q?Th=C3=A9o_Lebrun?= , Thomas Petazzoni , Gerald Loacker , Bryan O'Donoghue , Markus Elfring , Laurent Pinchart , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Kever Yang , Nicolas Dufresne , Sebastian Reichel , Collabora Kernel Team , Paul Kocialkowski , Alexander Shiyan , Val Packett , Rob Herring , Philipp Zabel , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, Mehdi Djait , Krzysztof Kozlowski , Bryan O'Donoghue , Chen-Yu Tsai References: <20240220-rk3568-vicap-v14-0-b38b6da0fc80@collabora.com> Content-Language: en-US From: Michael Riesch In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251107_104205_125171_06BCFE16 X-CRM114-Status: GOOD ( 16.81 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Hi Sakari, On 11/7/25 18:32, Sakari Ailus wrote: > Hi Michael, > > On Fri, Oct 24, 2025 at 02:51:29PM +0200, Michael Riesch via B4 Relay wrote: >> Habidere, >> >> This series introduces support for the Rockchip Camera Interface (CIF), >> which is featured in many Rockchip SoCs in different variations. >> For example, the PX30 Video Input Processor (VIP) is able to receive >> video data via the Digital Video Port (DVP, a parallel data interface) >> and transfer it into system memory using a double-buffering mechanism >> called ping-pong mode. >> The RK3568 Video Capture (VICAP) unit, on the other hand, features a >> DVP and a MIPI CSI-2 receiver that can receive video data independently >> (both using the ping-pong scheme). >> The different variants may have additional features, such as scaling >> and/or cropping. >> Finally, the RK3588 VICAP unit constitutes an essential piece of the >> camera interface with one DVP, six MIPI CSI-2 receivers, scale/crop >> units, and a data path multiplexer (to scaler units, to ISP, ...). > > I understand both RK3568 and RK3588 include an ISP. Do you have insight on > how would this work, should the support for the ISP be added later on? > Short answer: Yes and yes. Long answer: The patch series at hand adds support for the PX30 VIP and the RK3568 VICAP. I cannot really say something about the PX30, but on the RK3568 VICAP and ISP are orthogonal (the ISP features its own MIPI CSI-2 receiver, different from that introduced in this series). Thus, ISP support can be introduced anytime (whenever someone is motivated ;-)). Once this patch series is merged, I'll push out changes that introduce support for the RK3588 VICAP. We can discuss the integration of any RK3588 ISP in this scope then -- and there may be some things to discuss as there the VICAP and the ISP(s) are directly connected by means of a MUX unit in the VICAP. Alright? Best regards, Michael _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip