From patchwork Thu Apr 18 15:44:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 790082 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id A17A016E872; Thu, 18 Apr 2024 15:44:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713455063; cv=none; b=e+3YYplBwTzbuWc0f+zAqe/GL59U38Hsh5yX4uBlgvQfSSESou+tgpx5IOPmCCVO6FlP+GzTvOJRZtOE3RrDEBCP/aaMXXXSGAG8uPLDtinWQNrpgpJql2cHQuBPRQKKn+Gj9lTCqo7Q+VgTMmSHVfK8wzrZu3islY5qBVj3lIA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713455063; c=relaxed/simple; bh=khjjOLbtvbudCtQjH0CMR9woXwbICAUHojTN5uGSFaY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=hmlVkpqtFXXlB63WJAd+Rh3IdFpRzdxLJ3QvCjaU4/9Hq4leE7NNJNWnTz5B9VgggcqZPbR+7kcFLhdnEiqF9cDZBCSH8w0uAm8kl8JTAl/Yei9JvsmOoM5bLItNE/XrCjJQyoZ5qI3EsFUExd/uARPFz76NNtOSVLh7zwBVjQk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 141601042; Thu, 18 Apr 2024 08:44:48 -0700 (PDT) Received: from donnerap.arm.com (donnerap.manchester.arm.com [10.32.100.28]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 57AF13F738; Thu, 18 Apr 2024 08:44:17 -0700 (PDT) From: Andre Przywara To: Yangtao Li , Viresh Kumar , Nishanth Menon , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , "Rafael J . Wysocki" , Mark Rutland , Lorenzo Pieralisi , Sudeep Holla Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Brandon Cheo Fusi , Martin Botka , Martin Botka , Chris Morgan , Ryan Walklin Subject: [PATCH v5 1/8] firmware: smccc: Export revision soc_id function Date: Thu, 18 Apr 2024 16:44:01 +0100 Message-Id: <20240418154408.1740047-2-andre.przywara@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240418154408.1740047-1-andre.przywara@arm.com> References: <20240418154408.1740047-1-andre.przywara@arm.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Martin Botka The "SoC ID revision" as provided via the SMCCC SOCID interface can be valuable information for drivers, when certain functionality depends on a die revision, for instance. One example is the sun50i-cpufreq-nvmem driver, which needs this information to determine the speed bin of the SoC. Export the arm_smccc_get_soc_id_revision() function so that it can be called by any driver. Signed-off-by: Martin Botka Signed-off-by: Andre Przywara Acked-by: Sudeep Holla --- drivers/firmware/smccc/smccc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/firmware/smccc/smccc.c b/drivers/firmware/smccc/smccc.c index db818f9dcb8ee..d670635914ecb 100644 --- a/drivers/firmware/smccc/smccc.c +++ b/drivers/firmware/smccc/smccc.c @@ -69,6 +69,7 @@ s32 arm_smccc_get_soc_id_revision(void) { return smccc_soc_id_revision; } +EXPORT_SYMBOL_GPL(arm_smccc_get_soc_id_revision); static int __init smccc_devices_init(void) {