From patchwork Fri Aug 25 08:13:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Qiu X-Patchwork-Id: 13365138 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 C0D73C3DA6F for ; Fri, 25 Aug 2023 08:14:24 +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=LQ6MboOGs3usgFxhqZlDNDrZXa1v+9EVKMQc6BvItkI=; b=l2yW/Y7MTTDskL A6BjYFddT7ovW6jq7dzZK/2pSssdpln4tq8mJ5z6NZPBWEd0mlMmlUZ9GPFr3yFScst2bnGEGWecS ys5kChN7z07i7ApzuNEJpeSQWXyAbu+Z+JGEGX6eKZv0VvrbyGdScTTWIAma4ZMIJek9rs1s0RujR ndeo2QthtsSmypZ8BzIOykxaj7SvqO9Cngw1Qwpw20G1OGLywPhKRw+L6G4VPWNh/GvK/0cs2xRTo 6yxL7dzbyPY8GOElGib4dRzQqBFycDQEqUaZpEEizKNqDslO3l2vKsrMCsXXLwZYOVFt9seKgAI/t uOZ3SNC026nyFU1auGqA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZRxV-004br0-10; Fri, 25 Aug 2023 08:14:21 +0000 Received: from fd01.gateway.ufhost.com ([61.152.239.71]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZRxS-004blV-0K for linux-riscv@lists.infradead.org; Fri, 25 Aug 2023 08:14:19 +0000 Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by fd01.gateway.ufhost.com (Postfix) with ESMTP id 0BA2F81BB; Fri, 25 Aug 2023 16:13:30 +0800 (CST) Received: from EXMBX168.cuchost.com (172.16.6.78) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 25 Aug 2023 16:13:30 +0800 Received: from williamqiu-virtual-machine.starfivetech.com (171.223.208.138) by EXMBX168.cuchost.com (172.16.6.78) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 25 Aug 2023 16:13:28 +0800 From: William Qiu To: , , , CC: Emil Renner Berthing , Rob Herring , Philipp Zabel , Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Krzysztof Kozlowski , Conor Dooley , "Paul Walmsley" , Palmer Dabbelt , Albert Ou , Hal Feng , William Qiu Subject: [RFC v4 0/4] StarFive's Pulse Width Modulation driver support Date: Fri, 25 Aug 2023 16:13:24 +0800 Message-ID: <20230825081328.204442-1-william.qiu@starfivetech.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Originating-IP: [171.223.208.138] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX168.cuchost.com (172.16.6.78) X-YovoleRuleAgent: yovoleflag X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230825_011418_336806_5FFE2B43 X-CRM114-Status: GOOD ( 14.72 ) 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 Hi, This patchset adds initial rudimentary support for the StarFive Pulse Width Modulation controller driver. And this driver will be used in StarFive's VisionFive 2 board.The first patch add Documentations for the device and Patch 2 adds device probe for the module. Changes v3->v4: - Rebased to v6.5rc7. - Sorted the header files in alphabetic order. - Changed iowrite32() to writel(). - Added a way to turn off. - Moified polarity inversion implementation. - Added 7100 support. - Added dts patches. - Used the various helpers in linux/math.h. - Corrected formatting problems. - Renamed dtbinding to 'starfive,jh7100-pwm.yaml'. - Dropped the redundant code. Changes v2->v3: - Fixed some formatting issues. Changes v1->v2: - Renamed the dt-binding 'pwm-starfive.yaml' to 'starfive,jh7110-pwm.yaml'. - Dropped the compatible's Items. - Dropped the unuse defines. - Modified the code to follow the Linux coding style. - Changed return value to dev_err_probe. - Dropped the unnecessary local variable. The patch series is based on v6.5rc7. William Qiu (4): dt-bindings: pwm: Add StarFive PWM module pwm: starfive: Add PWM driver support riscv: dts: starfive: jh7110: Add PWM node and pins configuration riscv: dts: starfive: jh7100: Add PWM node and pins configuration .../bindings/pwm/starfive,jh7100-pwm.yaml | 55 +++++ MAINTAINERS | 7 + .../boot/dts/starfive/jh7100-common.dtsi | 24 +++ arch/riscv/boot/dts/starfive/jh7100.dtsi | 9 + .../jh7110-starfive-visionfive-2.dtsi | 22 ++ arch/riscv/boot/dts/starfive/jh7110.dtsi | 9 + drivers/pwm/Kconfig | 9 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-starfive-ptc.c | 192 ++++++++++++++++++ 9 files changed, 328 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/starfive,jh7100-pwm.yaml create mode 100644 drivers/pwm/pwm-starfive-ptc.c --- 2.34.1