From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 08D9681ACA; Sun, 21 Dec 2025 13:50:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766325050; cv=none; b=pdJlBqzx2SQKZu4+AVPGh9TBxgb0MxwjuZHsilcdOReV6jtx72WzcGVhFhZ2UEP3kAI4ZS3I2ih2TcAvRuAmUmYky2OUYFv7ZmENElvkOA/Z0nwm41/5J0AWXDP2Zqw6rarbvHX3mOBfVISoA89ri7jRb1NF7ZxDeh/1nh+PD/4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766325050; c=relaxed/simple; bh=fFHsaDnVdtMuiZoDAEIV4H2kS+QCyOQ+DjxlAHN9S+Y=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=TAOTAKjj3DOykUhKwCOEDAr7qKP9pLme4u4UZikf/2YEC3n+j4EGS136eqG1XHkD6Lnr3gEmiMaNzoIDbG221uj/rLcsNcty58UTRZ+Ac2slBMoZikkxTnWE5AXOD3dp4dRNG2TSYf6sHg80jwib1MsDt9tXuHbpt/7nyq8n3t4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CF6RgSn4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="CF6RgSn4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EE8DFC16AAE; Sun, 21 Dec 2025 13:50:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766325046; bh=fFHsaDnVdtMuiZoDAEIV4H2kS+QCyOQ+DjxlAHN9S+Y=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=CF6RgSn4BWNHcv97swOu0kvqBn19PuGp8x+FpbHUzMMFZFnGCvxqHHci5xcdUn6DE JJmge02tw5pCXkdOqITcqdqaK6+AuSFwmJNPm3iJCbGl0yNRJo4L24KrDcjyZjktQC CSAXyNR36qvMDgCZUt/QjW0OWS7mnSVraNrj/yWw4p4+vYo+n02voijY2CqdKnrXfH JFiIYMhtrxwFys8UjEyMWn7+O5sUZtieHr0E2lC7CpCNHcjnTni0IRd0wjFIVF7zMK zIa4qf2r5dJ6gV0Hbr5e6I9uukTLpPbvnENfmoctU+VSHyg127GBmOtgSl4isGyrJ8 EBn/6N0lFrpRg== Message-ID: <5314fc2e-e21f-4a2b-8970-c856049edb72@kernel.org> Date: Sun, 21 Dec 2025 14:50:38 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 0/6] soc: samsung: exynos-chipid: add gs101 support To: Tudor Ambarus , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Peter Griffin , =?UTF-8?Q?Andr=C3=A9_Draszik?= , Srinivas Kandagatla Cc: semen.protsenko@linaro.org, willmcvicker@google.com, kernel-team@android.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org References: <20251120-gs101-chipid-v3-0-1aeaa8b7fe35@linaro.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 20/11/2025 12:29, Tudor Ambarus wrote: > Dependency > ========== > Typical dependency of the DT patch depending on the bindings patch, > thus the bindings patch could go via the Samsung SoC tree with > Srinivas's ack. > > Description > =========== > GS101 is different (but also e850 and autov9 I assume) from the SoCs > that are currently handled by the exynos-chipid driver because the > chip ID info is part of the OTP registers. GS101 OTP has a clock, an > interrupt line, a register space (that contains product and chip ID, > TMU data, ASV, etc) and a 32Kbit memory space that can be > read/program/locked with specific commands. On GS101 the "ChipID block" > is just an abstraction, it's not a physical device. When the power-on > sequence progresses, the OTP chipid values are loaded to the OTP > registers. > > Add the GS101 chip ID support. The support is intentionally added in the > exynos-chipid driver, and not in a dedicated Exynos OTP driver, because > we estimate that there will not be any OTP consumers in the kernel other > than the chip ID/SoC interface. The downstream GS101 drivers confirm > this supposition. > Patches look fine to me, I took already two, but the rest please send new version after implementing Andre's feedback (thanks for review!). Best regards, Krzysztof