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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 4/5] arm64: defconfig: enable Samsung Exynos OTP controller
Date: Wed, 12 Nov 2025 08:29:08 +0000	[thread overview]
Message-ID: <20251112-gs101-otp-v2-4-bff2eb020c95@linaro.org> (raw)
In-Reply-To: <20251112-gs101-otp-v2-0-bff2eb020c95@linaro.org>

Enable the exynos-otp nvmem driver. The driver reads the product and
chip IDs from the OTP register space and register the SoC info to the
SoC interface.

The driver can be extended to empower the controller become nvmem
provider. The fuse block stores various system information (TMU, ASV,
etc.) which can be accessed by client drivers.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
---
 arch/arm64/configs/defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 646097e94efe7f1a18fb59d5b6dfc6268be91383..6433e3c0f88b892ce6f2ee190f866a6ab4889771 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -1682,6 +1682,7 @@ CONFIG_ARM_CORESIGHT_PMU_ARCH_SYSTEM_PMU=m
 CONFIG_NVIDIA_CORESIGHT_PMU_ARCH_SYSTEM_PMU=m
 CONFIG_MESON_DDR_PMU=m
 CONFIG_NVMEM_LAYOUT_SL28_VPD=m
+CONFIG_NVMEM_EXYNOS_OTP=m
 CONFIG_NVMEM_IMX_OCOTP=y
 CONFIG_NVMEM_IMX_OCOTP_ELE=m
 CONFIG_NVMEM_IMX_OCOTP_SCU=y

-- 
2.51.2.1041.gc1ab5b90ca-goog


  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 ` [PATCH v2 1/5] dt-bindings: nvmem: add google,gs101-otp Tudor Ambarus
2025-11-13  8:22   ` 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 ` Tudor Ambarus [this message]
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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