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Thu, 14 Aug 2025 13:10:39 -0700 (PDT) From: Aliaksandr Smirnou To: krzk@kernel.org Cc: conor+dt@kernel.org, devicetree@vger.kernel.org, krzk+dt@kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, robh@kernel.org, support@pinefeat.co.uk Subject: Re: [PATCH v2 1/2] dt-bindings: Pinefeat cef168 lens control board Date: Thu, 14 Aug 2025 21:10:38 +0100 Message-Id: <20250814201038.15054-1-support@pinefeat.co.uk> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250814-intelligent-industrious-cassowary-b73c9b@kuoka> References: <20250814-intelligent-industrious-cassowary-b73c9b@kuoka> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Thu, 14 Aug 2025 11:04:10 +0200, Krzysztof Kozlowski wrote: > You describe here the entire board, not the MCU only or lens motor > only... Since you asked about 5 V, I was explaining that this power source is not relevant for the driver. > Can the board be used outside of above setup? I understand so far this > is only for Rpi where both above supplies - 3.3 V and 5 V - are coming > from the header pins, so supplies would be totally redundant. There are several variants of the board, differing only in physical size and type of CSI connector, targeting different cameras. The board should be compatible with any single-board computer that uses a similar CSI connector pinout and MIPI signal lane assignment. For example, the NVIDIA Jetson series replicates the Raspberry Pi camera and GPIO header pinout. So yes, the board can be used outside of a Raspberry Pi setup. As noted above, these supplies are redundant and were not included in the driver description. Given that, is it acceptable to remove the vcc-supply property?