From patchwork Thu Oct 12 08:10:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xingyu Wu X-Patchwork-Id: 13418482 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5FBDDCDB47E for ; Thu, 12 Oct 2023 08:11:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=zKwjU2UnZUI+lUqxUN7qjHV5P8K73v2jIZFft9enqXM=; b=CPzLGh2YjQeLqb 2kVHVU4mqIKUkQsr2w5qUdmaE30jU7dF/fW0TVSJe5cjaAqX0NJ7Lfmrizs4RCKQdYYZgpLpUueNa 63i/uM5XoPH0RFdjJWCvdo45cui2oTL+E1i+wEMjhrSFOfPL9T5M9gTaCmS+q5OwTEBrWKfDMudVb rwHSSpMSCf4/LUiJwRtmsZNWr10nmASL2PXRVllM5OOAAJqqAjwR0dbJv+xAYO7Sqvs8nK7pdTPG3 npW64vkcCBE7wYYP999JogRqT0fDs1LsbSZl5EBIG7LszjfL8KS6vh0gZjyog1dRlYwqpsVTpM1ec cjZIIc9XhmNAZX+pLgOQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qqqmp-0008oH-32; Thu, 12 Oct 2023 08:11:15 +0000 Received: from ex01.ufhost.com ([61.152.239.75]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qqqml-0008gr-2Z for linux-riscv@lists.infradead.org; Thu, 12 Oct 2023 08:11:14 +0000 Received: from fd01.gateway.ufhost.com (fd01.gateway.ufhost.com [61.152.239.71]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ex01.ufhost.com (Postfix) with ESMTP id 5E10724E378; Thu, 12 Oct 2023 16:10:17 +0800 (CST) 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 4630C7FC9; Thu, 12 Oct 2023 16:10:17 +0800 (CST) Received: from EXMBX061.cuchost.com (172.16.6.61) by EXMBX165.cuchost.com (172.16.6.75) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Thu, 12 Oct 2023 16:10:16 +0800 Received: from localhost.localdomain (183.27.96.95) by EXMBX061.cuchost.com (172.16.6.61) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Thu, 12 Oct 2023 16:10:15 +0800 From: Xingyu Wu To: Daniel Lezcano , Thomas Gleixner , Emil Renner Berthing , Walker Chen CC: , , "Rob Herring" , Krzysztof Kozlowski , Paul Walmsley , Palmer Dabbelt , Albert Ou , Philipp Zabel , Xingyu Wu , Samin Guo , , Conor Dooley Subject: [PATCH v6 0/3] Add timer driver for StarFive JH7110 RISC-V SoC Date: Thu, 12 Oct 2023 16:10:12 +0800 Message-ID: <20231012081015.33121-1-xingyu.wu@starfivetech.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [183.27.96.95] X-ClientProxiedBy: EXCAS063.cuchost.com (172.16.6.23) To EXMBX061.cuchost.com (172.16.6.61) X-YovoleRuleAgent: yovoleflag X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231012_011112_186088_A2CD034A X-CRM114-Status: GOOD ( 16.64 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org This patch serises are to add timer driver for the StarFive JH7110 RISC-V SoC. The first patch adds documentation to describe device tree bindings. The subsequent patch adds timer driver and support JH7110 SoC. The last patch adds device node about timer in JH7110 dts. This timer has four free-running 32 bit counters and runs in 24MHz clock on StarFive JH7110 SoC. And each channel(counter) triggers an interrupt when timeout. They support one-shot mode and continuous-run mode. Changes since v5: - Rebased on 6.6-rc5. - Chnaged the number about characters of name. - Made the clkevt->periodic to a local variable. - Dropped the variables of device and base. - Used clkevt->evt.irq directly and dropped the extra copy of irq. V5: https://lore.kernel.org/all/20230907053742.250444-1-xingyu.wu@starfivetech.com/ Changes since v4: - Rebased on 6.5. - Dropped the useless enum and used value directly when writing registers. - Modified the description in Kconfig. - Add the reviewed tag in patch 3. v4: https://lore.kernel.org/all/20230814101603.166951-1-xingyu.wu@starfivetech.com/ Changes since v3: - Rebased on 6.5-rc6 - Dropped the useless enum names like 'JH7110_TIMER_CH_0'. - Dropped the platform data about JH7110 and used the register offsets directly. - Drroped the useless functions of clk_disable_unprepare(). v3: https://lore.kernel.org/all/20230627055313.252519-1-xingyu.wu@starfivetech.com/ Changes since v2: - Rebased on 6.4-rc7. - Merged the header file into the c file. - Renamed the functions from 'starfive_' to 'jh7110_' - Used function 'clocksource_register_hz' instead of 'clocksource_mmio_init'. v2: https://lore.kernel.org/all/20230320135433.144832-1-xingyu.wu@starfivetech.com/ Changes since v1: - Added description about timer and modified properties' description in dt-bindings. - Dropped the 'interrupt-names' and 'clock-frequency' in dt-bindings. - Renamed the functions and added 'starfive_' - Modified that the driver probe by platform bus. v1: https://lore.kernel.org/all/20221223094801.181315-1-xingyu.wu@starfivetech.com/ Xingyu Wu (3): dt-bindings: timer: Add timer for StarFive JH7110 SoC clocksource: Add JH7110 timer driver riscv: dts: jh7110: starfive: Add timer node .../bindings/timer/starfive,jh7110-timer.yaml | 96 +++++ MAINTAINERS | 7 + arch/riscv/boot/dts/starfive/jh7110.dtsi | 20 + drivers/clocksource/Kconfig | 11 + drivers/clocksource/Makefile | 1 + drivers/clocksource/timer-jh7110.c | 387 ++++++++++++++++++ 6 files changed, 522 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/starfive,jh7110-timer.yaml create mode 100644 drivers/clocksource/timer-jh7110.c