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charset="utf-8" Message-Id: <20261112-m52xq-nfc-netdev-v3-1-725a61ce4148@gmail.com> References: <20261112-m52xq-nfc-netdev-v3-0-725a61ce4148@gmail.com> In-Reply-To: <20261112-m52xq-nfc-netdev-v3-0-725a61ce4148@gmail.com> To: Krzysztof Kozlowski , David Heidelberg , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Conor Dooley Cc: oe-linux-nfc@lists.linux.dev, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , Asdlerto Korry X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1794504348; l=1338; i=korryasdlerto@gmail.com; s=20261104; h=from:subject:message-id; bh=zH+1as4NCY/dZ65WKSxZl8APKd4N3zG6ELlk34X29Gg=; b=vIZTPZ2ceGklPiI/sE2YKq81kKdtCavLG2dRIE+zRC+k6/VMD1hy28l0ND78DrMd0+ePmBBnQ 1Fs/NGyuOoUC+cHZ0A6YSKgP76v3a0N+2S8psgM+HR99nZo3fAVOukw X-Developer-Key: i=korryasdlerto@gmail.com; a=ed25519; pk=RqttIGkm2XZ8NhLQBzPgpXXawOdVa1uODGsk+sagbxs= X-Endpoint-Received: by B4 Relay for korryasdlerto@gmail.com/20261104 with auth_id=1411 X-Original-From: Asdlerto Korry Reply-To: korryasdlerto@gmail.com Content-Transfer-Encoding: 7bit From: Asdlerto Korry The PVDD pin of the S3FWRN5 has to be powered before the chip is enabled. On some boards, like the Samsung Galaxy M52 5G, this supply is switched by a SoC GPIO. Document it, so that the regulator can be handed to the driver instead of being kept always on. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Asdlerto Korry --- Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml b/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml index 12baee45752c..3c5a579a7108 100644 --- a/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml +++ b/Documentation/devicetree/bindings/net/nfc/samsung,s3fwrn5.yaml @@ -34,6 +34,10 @@ properties: description: Output GPIO pin used to enter firmware mode and sleep/wakeup control + pvdd-supply: + description: + Power supply of the PVDD pin + s3fwrn5,en-gpios: maxItems: 1 deprecated: true @@ -84,6 +88,7 @@ examples: wake-gpios = <&gpj0 2 GPIO_ACTIVE_HIGH>; clocks = <&rpmcc 20>; + pvdd-supply = <&nfc_pvdd>; }; }; # UART example on Raspberry Pi -- 2.25.1