From patchwork Mon May 10 07:35:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Billy Tsai X-Patchwork-Id: 12247113 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 965CEC433B4 for ; Mon, 10 May 2021 07:37:30 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EC59F61106 for ; Mon, 10 May 2021 07:37:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EC59F61106 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aspeedtech.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; 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=vzJqwJcKIuUO4AMDJomfAlEfAk8pzvlzIen1IKkJLu4=; b=OIynFHmkXdh62kvlvxa2s+Am90 InyJrsIMI6y+uZkPkBkeoK0dvhoZZ0xaDcWoeroZ+07uzW7i9VOaohyksIFTLNSX67IFqatWE+Y8u ht9/1NAXzbdQY/T+IrIvUMTPM8rZQITwGW5psuA3QL6jIkeI/3//JGWz8s5L6PLvPVMLWuRSSTh3Q A+yBPw1lPRG4SakG38MpeHulxuSRK3eVXlrHc9SKX3dUTdPGZUUcll4JJSpRWasqVJOy3YR3aYGHm vQ9LYTJa7g5CxIWmmnnWKhQHjqOAQ4OAKtZRsn8p5oCl+7ikxpkiVn+F5JRvRXMs2e59iyWIps9YP MD4moCxw==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lg0S3-00DWiQ-AI; Mon, 10 May 2021 07:35:39 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lg0S0-00DWi7-8L for linux-arm-kernel@desiato.infradead.org; Mon, 10 May 2021 07:35:36 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:Content-Type: MIME-Version:Message-ID:Date:Subject:CC:To:From:Sender:Reply-To:Content-ID: Content-Description:In-Reply-To:References; bh=bdDXoUcWGcbu/7hMwYkJHZhhGD7BFFQog1LDCK6Ek3I=; b=j6atfusI/GpYThww8fADC2cKA2 i6CDEzoejOtfpGdRR+0efL3aQgJ6WLQfgb2tz/VG2lJLRHufFX+nclPuK2spJEFa+CKKhG70DGMXc 3fZIIUqszl16hEegEcgpFhhWWPfE+MFFMqFOLNpm+XngNQYCF/9N4iE4wHnNVmmC1FWrv/Pu+2CID HeO5M1/Y6lp7FYSe4LxqXmS3I3yLO4mGCKuVoQ10hnXe9KPBHiG02ZDepbB45nCzd0P0kUtmxJiR2 fOdxuIHepynEKuCXHf+D0ejjjOl9PAY5kOK2N3QQGUO7+klYjBolXeyu9rdyuRP0Lt23Y9sFMP7SG xyUIEy4A==; Received: from twspam01.aspeedtech.com ([211.20.114.71]) by casper.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lg0Qm-005oVE-LZ for linux-arm-kernel@lists.infradead.org; Mon, 10 May 2021 07:35:10 +0000 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 14A7LODP042444; Mon, 10 May 2021 15:21:24 +0800 (GMT-8) (envelope-from billy_tsai@aspeedtech.com) Received: from BillyTsai-pc.aspeed.com (192.168.2.149) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 10 May 2021 15:33:27 +0800 From: Billy Tsai To: , , , , , , , , , , , , CC: Subject: [v4 0/2] Support pwm driver for aspeed ast26xx Date: Mon, 10 May 2021 15:35:09 +0800 Message-ID: <20210510073511.7291-1-billy_tsai@aspeedtech.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [192.168.2.149] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 14A7LODP042444 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210510_083502_088967_3022EA0E X-CRM114-Status: GOOD ( 12.27 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The legacy driver of aspeed pwm is binding with tach controller and it doesn't follow the pwm framworks usage. In addition, the pwm register usage of the 6th generation of ast26xx has drastic change. So these patch serials add the new aspeed pwm driver to fix up the problem above. Changes since v3: - Add the dt_binding for aspeed,ast2600-tach. - Describe the pwm/tach as child-node of pwm-tach mfd. - Complete the properties of pwm node. Changes since v2: - Remove the tach node, #address-cells and #size-cells from pwm-tach.yaml - Add clocks and reset properties to pwm-tach.yaml - Kconfig/Makfile sorted alphabetically - pwm-aspeed-g6.c suggested by Uwe Kleine-König - Add more hardware descriptions at top of the driver. - Remove unused api request and free - Move the initialize settings of all pwm channel to probe. - Change the method of getting the approximate period. - Read the hardware register values to fill the state for .get_state() Changes since v1: - Fix the dt_binding_check fail suggested by Rob Herring - Add depends to PWM_ASPEED_G6 configure suggested by Uwe Kleine-Konig - pwm-aspeed-g6.c suggested by Uwe Kleine-König - Fix license header - Use bitfiled.h macro to define register fields - Implement .remove device function - Implement .get_state pwm api Billy Tsai (2): dt-bindings: Add bindings for aspeed pwm-tach. pwm: Add Aspeed ast2600 PWM support .../bindings/hwmon/aspeed,ast2600-tach.yaml | 66 ++++ .../bindings/mfd/aspeed,ast2600-pwm-tach.yaml | 82 ++++ .../bindings/pwm/aspeed,ast2600-pwm.yaml | 62 +++ drivers/pwm/Kconfig | 8 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-aspeed-g6.c | 368 ++++++++++++++++++ 6 files changed, 587 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml create mode 100644 Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml create mode 100644 Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml create mode 100644 drivers/pwm/pwm-aspeed-g6.c