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Wed, 29 Jul 2026 01:59:16 -0700 (PDT) From: Hrushiraj Gandhi To: Srinivas Kandagatla , Heiko Stuebner Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Liam Girdwood , Mark Brown , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Hrushiraj Gandhi Subject: [PATCH v2 1/2] dt-bindings: nvmem: rockchip-efuse: add optional vqps supply Date: Wed, 29 Jul 2026 14:28:55 +0530 Message-ID: <20260729085856.226001-2-hrushirajg23@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260729085856.226001-1-hrushirajg23@gmail.com> References: <20260729085856.226001-1-hrushirajg23@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add an optional vqps-supply property for the eFuse programming supply voltage (VQPS). Per RK3399 TRM section 21.6.1, table 21-3, VQPS must be 0V during reads and 1.8V to 1.98V during A_PGM mode writes. The presence of this supply declares that the board hardware supports software-initiated eFuse programming and provides the requisite programming supply. Signed-off-by: Hrushiraj Gandhi --- Documentation/devicetree/bindings/nvmem/rockchip-efuse.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.yaml b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.yaml index b80fd8d1ae5b..25f209fd881e 100644 --- a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.yaml +++ b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.yaml @@ -27,6 +27,11 @@ properties: # Deprecated: old compatible value for rk3066a, rk3188 and rk3288 - rockchip,rockchip-efuse + vqps-supply: + description: + Supply for the eFuse programming voltage (VQPS), required only + on boards where software-initiated OTP programming is intended. + reg: description: Registers location and eFuse size. -- 2.47.3