From: Tudor Ambarus <tudor.ambarus@linaro.org>
To: "Srinivas Kandagatla" <srini@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Krzysztof Kozlowski" <krzk@kernel.org>,
"Alim Akhtar" <alim.akhtar@samsung.com>,
"Peter Griffin" <peter.griffin@linaro.org>,
"André Draszik" <andre.draszik@linaro.org>
Cc: semen.protsenko@linaro.org, willmcvicker@google.com,
kernel-team@android.com, linux-kernel@vger.kernel.org,
linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Tudor Ambarus <tudor.ambarus@linaro.org>
Subject: [PATCH v2 1/5] dt-bindings: nvmem: add google,gs101-otp
Date: Wed, 12 Nov 2025 08:29:05 +0000 [thread overview]
Message-ID: <20251112-gs101-otp-v2-1-bff2eb020c95@linaro.org> (raw)
In-Reply-To: <20251112-gs101-otp-v2-0-bff2eb020c95@linaro.org>
Add binding for the OTP controller found on Google GS101.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
---
.../bindings/nvmem/google,gs101-otp.yaml | 56 ++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/Documentation/devicetree/bindings/nvmem/google,gs101-otp.yaml b/Documentation/devicetree/bindings/nvmem/google,gs101-otp.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..ea87216761dbab9a7a5cecd87a553a6a2a1783f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/google,gs101-otp.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/google,gs101-otp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Google GS101 OTP Controller
+
+maintainers:
+ - Tudor Ambarus <tudor.ambarus@linaro.org>
+
+description: |
+ OTP controller drives a NVMEM memory where system or user specific data
+ can be stored. The OTP controller register space if of interest as well
+ because it contains dedicated registers where it stores the Product ID
+ and the Chip ID (apart other things like TMU or ASV info).
+
+allOf:
+ - $ref: nvmem.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: google,gs101-otp
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/google,gs101.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ efuse@10000000 {
+ compatible = "google,gs101-otp";
+ reg = <0x10000000 0xf084>;
+ clocks = <&cmu_misc CLK_GOUT_MISC_OTP_CON_TOP_PCLK>;
+ interrupts = <GIC_SPI 752 IRQ_TYPE_LEVEL_HIGH>;
+ };
--
2.51.2.1041.gc1ab5b90ca-goog
next prev parent reply other threads:[~2025-11-12 8:29 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-12 8:29 [PATCH v2 0/5] nvmem: add Samsung Exynos OTP support Tudor Ambarus
2025-11-12 8:29 ` Tudor Ambarus [this message]
2025-11-13 8:22 ` [PATCH v2 1/5] dt-bindings: nvmem: add google,gs101-otp Krzysztof Kozlowski
2025-11-13 9:05 ` André Draszik
2025-11-12 8:29 ` [PATCH v2 2/5] nvmem: add Samsung Exynos OTP support Tudor Ambarus
2025-11-13 8:30 ` Krzysztof Kozlowski
2025-11-13 9:28 ` Tudor Ambarus
2025-11-13 9:35 ` Krzysztof Kozlowski
2025-11-13 9:51 ` Tudor Ambarus
2025-11-13 10:26 ` Tudor Ambarus
2025-11-13 10:44 ` Krzysztof Kozlowski
2025-11-13 12:52 ` Tudor Ambarus
2025-11-13 10:43 ` Krzysztof Kozlowski
2025-11-12 8:29 ` [PATCH v2 3/5] arm64: dts: exynos: gs101: add OTP node Tudor Ambarus
2025-11-12 8:29 ` [PATCH v2 4/5] arm64: defconfig: enable Samsung Exynos OTP controller Tudor Ambarus
2025-11-12 8:29 ` [PATCH v2 5/5] MAINTAINERS: add entry for the Samsung Exynos OTP controller driver Tudor Ambarus
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