From patchwork Wed Jan 20 16:16:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Baruch Siach X-Patchwork-Id: 12032805 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=-11.9 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,URIBL_BLOCKED,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 9BB5CC433E0 for ; Wed, 20 Jan 2021 16:18:32 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 4C2B5233CE for ; Wed, 20 Jan 2021 16:18:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4C2B5233CE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=tkos.co.il 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=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject: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=DJTmIpmTzLBMRfuhSx2/wx5BBMYnhspzTT6dZvRaRpg=; b=jUh18CzyMfIr9IkRyDNVKu58r0 pSSe9Q0ElWb+c70zoGIrYk8XX49UWrFeZ6WXLzf4R4UmDJf84FMrh08ATYde7Aro73u3c6Wb5Ogqs Raz9tVWH1qKnP4hEmRBK9sn/Ll33zJlRO/DMnTgx+3mh6uMcLKMX5JRq8OQ0Li6f2U2UAznKwvLva HGgmurqqySBlxPRTQ6fTAorhmBVIBYwNJzaqmRUzUsUtIc2dGooV9pnIn/zWieBLv845/s36S+6n0 YbO727oZX0eyyLbjehg7w4MTQwKEOdacm21OYF2u86wqhcmtRjrukKfarWoVm4xbEVmGgj45cHQpW OvtdC8IQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l2GAE-00060a-Oz; Wed, 20 Jan 2021 16:16:58 +0000 Received: from guitar.tcltek.co.il ([192.115.133.116] helo=mx.tkos.co.il) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l2GA3-0005vU-Ez for linux-arm-kernel@lists.infradead.org; Wed, 20 Jan 2021 16:16:48 +0000 Received: from tarshish.tkos.co.il (unknown [10.0.8.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx.tkos.co.il (Postfix) with ESMTPS id 6A0C444056C; Wed, 20 Jan 2021 18:16:37 +0200 (IST) From: Baruch Siach To: Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6n?= =?utf-8?q?ig?= , Lee Jones , Linus Walleij , Bartosz Golaszewski Subject: [PATCH v5 0/4] gpio: mvebu: pwm fixes and improvements Date: Wed, 20 Jan 2021 18:16:24 +0200 Message-Id: X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210120_111647_695961_14A7D89A X-CRM114-Status: GOOD ( 15.39 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrew Lunn , Baruch Siach , linux-pwm@vger.kernel.org, Gregory Clement , Russell King , linux-gpio@vger.kernel.org, Chris Packham , Thomas Petazzoni , Ralph Sennhauser , Sascha Hauer , linux-arm-kernel@lists.infradead.org, Sebastian Hesselbarth Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series adds a few related fixes to the pwm .apply and .get_state callbacks. The first patch was originally part of the series adding Armada 8K/7K pwm support. I split it out to a separate series following review comments from Uwe Kleine-König who spotted a few more issues. There is no dependency between this and the Armada 8K/7K series. v5: * Drop a patch applied to the gpio tree * Fix patch 4/4 description typo (Uwe) * Reduce the number of multiplications (Uwe) * Add spaces around '+' (Uwe) * Use '1ULL' instead of explicit cast to reduce verbosity * Add Linus' Reviewed-by tags to patches that are unchanged since v2 v4: * Take advantage of zero value being treated as 2^32 by hardware. Rewrite patch 5/5 (Uwe). v3: * Improve patch 3/5 description (Uwe) * Add more Reviewed-by tags from Uwe v2: Address Uwe Kleine-König comments. * Improve patch 1/5 summary line * Add more information to patch 1/5 description * Add more information to patch 2/5 description * Don't round period/duty_cycle up in .apply (patch 3/5) * Expand the comment in path 5/5 based on RMK's analysis of hardware behaviour * Add Uwe's Reviewed-by tags Baruch Siach (4): gpio: mvebu: improve pwm period calculation accuracy gpio: mvebu: make pwm .get_state closer to idempotent gpio: mvebu: don't limit pwm period/duty_cycle to UINT_MAX gpio: mvebu: improve handling of pwm zero on/off values drivers/gpio/gpio-mvebu.c | 47 +++++++++++++++++++++------------------ 1 file changed, 25 insertions(+), 22 deletions(-)