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[2620:137:e000::1:20]) by mx.google.com with ESMTP id b24-20020a63d318000000b00478ba6bfcf0si30189255pgg.703.2023.01.16.17.58.36; Mon, 16 Jan 2023 17:58:47 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235184AbjAQBzT convert rfc822-to-8bit (ORCPT + 99 others); Mon, 16 Jan 2023 20:55:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233599AbjAQBzG (ORCPT ); Mon, 16 Jan 2023 20:55:06 -0500 Received: from fd01.gateway.ufhost.com (fd01.gateway.ufhost.com [61.152.239.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D88A9274B9; Mon, 16 Jan 2023 17:55:03 -0800 (PST) Received: from EXMBX165.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX165", Issuer "EXMBX165" (not verified)) by fd01.gateway.ufhost.com (Postfix) with ESMTP id ED3CB24E00A; Tue, 17 Jan 2023 09:54:55 +0800 (CST) Received: from EXMBX068.cuchost.com (172.16.6.68) by EXMBX165.cuchost.com (172.16.6.75) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Tue, 17 Jan 2023 09:54:56 +0800 Received: from ubuntu.localdomain (202.190.108.220) by EXMBX068.cuchost.com (172.16.6.68) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Tue, 17 Jan 2023 09:54:49 +0800 From: Jia Jie Ho To: Olivia Mackall , Herbert Xu , Rob Herring , "Krzysztof Kozlowski" , Emil Renner Berthing , Conor Dooley CC: , , , Subject: [PATCH v5 0/3] hwrng: starfive: Add driver for TRNG module Date: Tue, 17 Jan 2023 09:54:42 +0800 Message-ID: <20230117015445.32500-1-jiajie.ho@starfivetech.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [202.190.108.220] X-ClientProxiedBy: EXCAS061.cuchost.com (172.16.6.21) To EXMBX068.cuchost.com (172.16.6.68) X-YovoleRuleAgent: yovoleflag X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_MSPIKE_H2, SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1755233101139403329?= X-GMAIL-MSGID: =?utf-8?q?1755233101139403329?= This patch series adds kernel support for StarFive JH7110 hardware random number generator. First 2 patches add binding docs and device driver for this module. Patch 3 adds devicetree entry for VisionFive 2 SoC. Patch 3 needs to be applied on top of: https://patchwork.kernel.org/project/linux-riscv/patch/20221220011247.35560-7-hal.feng@starfivetech.com/ Patch 3 also depends on additional clock and reset patches for stg domain that are yet to be submitted to mailing list. Changes v4->v5: - Updated status in MAINTAINERS. (Conor) - Specified targeted device in Kconfig title and descriptions. (Conor) - Removed unnecessary goto label in patch 2. (Conor) - Enable runtime PM before registering hwrng in patch 2. (Conor) Changes v3->v4: - Moved init_completion before IRQ registration to be prepared for spurious interrupts. (Herbert) - Added locks to guard concurrent write to the same register. (Herbert) Changes v2->v3: - Use constant usecs and convert to jiffies. (Herbert) - Removed sleep in irq handler. (Herbert) - Limited wait time to 40us if wait == 0 for trng read. (Herbert) Changes v1->v2: - Updated of_match_ptr and added pm_sleep_ptr. (Krzysztof) - Dropped "status" in dts as module is always on. (Krzysztof) Jia Jie Ho (3): dt-bindings: rng: Add StarFive TRNG module hwrng: starfive - Add TRNG driver for StarFive SoC riscv: dts: starfive: Add TRNG node for VisionFive 2 .../bindings/rng/starfive,jh7110-trng.yaml | 55 +++ MAINTAINERS | 6 + arch/riscv/boot/dts/starfive/jh7110.dtsi | 10 + drivers/char/hw_random/Kconfig | 11 + drivers/char/hw_random/Makefile | 1 + drivers/char/hw_random/jh7110-trng.c | 393 ++++++++++++++++++ 6 files changed, 476 insertions(+) create mode 100644 Documentation/devicetree/bindings/rng/starfive,jh7110-trng.yaml create mode 100644 drivers/char/hw_random/jh7110-trng.c