From mboxrd@z Thu Jan 1 00:00:00 1970 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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 87A8AC433E0 for ; Sun, 17 Jan 2021 13:18:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 429F62225E for ; Sun, 17 Jan 2021 13:18:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728956AbhAQNSJ (ORCPT ); Sun, 17 Jan 2021 08:18:09 -0500 Received: from guitar.tcltek.co.il ([192.115.133.116]:52022 "EHLO mx.tkos.co.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728918AbhAQNSI (ORCPT ); Sun, 17 Jan 2021 08:18:08 -0500 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 1BC9644025F; Sun, 17 Jan 2021 15:17:13 +0200 (IST) From: Baruch Siach To: Thierry Reding , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Lee Jones , Linus Walleij , Bartosz Golaszewski Cc: Baruch Siach , Andrew Lunn , Gregory Clement , Russell King , Sebastian Hesselbarth , Thomas Petazzoni , Chris Packham , Sascha Hauer , Ralph Sennhauser , linux-pwm@vger.kernel.org, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 0/5] gpio: mvebu: pwm fixes and improvements Date: Sun, 17 Jan 2021 15:17:01 +0200 Message-Id: X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.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. 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 (5): gpio: mvebu: fix pwm .get_state period calculation 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 | 51 +++++++++++++++++++-------------------- 1 file changed, 25 insertions(+), 26 deletions(-) -- 2.29.2 From mboxrd@z Thu Jan 1 00:00:00 1970 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,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 6AAE3C433DB for ; Sun, 17 Jan 2021 13:20:39 +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 26B522222A for ; Sun, 17 Jan 2021 13:20:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 26B522222A 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=vahG6Ka2dHzvhnIoQsSzwXEpS8J9B5m3OpSJsDLc0mM=; b=Ru5ENku8eq/MkCBeBj8VqHR0oj 64CxlTzx28yNn2OB/b1ttAtoBOm268xODMlD6LP7jgkY+pAxWbIL38LUJac5W8KXDgClqOsKipobK ov6XqISwujpjdOv9Oyxph+CRkMoUHcMkBQPH7scyDOBsP2ODkr439h734P25ZncExtXdrqYLqHW2W GGXEThbVLKZCnwTKdCjfnLvVzN+r7buBs/rQFxIwqnigRzgDfwaHRS5htfipZy/b0MHQMHobwM7DV /Ofna4IROT2yimO5gwE8oaEJnZRCK94lRnQ5MJ1Fpj7hg0ZquhcpVjx8yVV49yW+Or69J0l89fgWj hJ9lKH7g==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l17xr-00081X-KO; Sun, 17 Jan 2021 13:19:31 +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 1l17xo-0007cD-Ck for linux-arm-kernel@lists.infradead.org; Sun, 17 Jan 2021 13:19:29 +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 1BC9644025F; Sun, 17 Jan 2021 15:17:13 +0200 (IST) From: Baruch Siach To: Thierry Reding , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Lee Jones , Linus Walleij , Bartosz Golaszewski Subject: [PATCH v4 0/5] gpio: mvebu: pwm fixes and improvements Date: Sun, 17 Jan 2021 15:17:01 +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-20210117_081929_265659_11BD74FC X-CRM114-Status: GOOD ( 13.27 ) 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 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org VGhpcyBzZXJpZXMgYWRkcyBhIGZldyByZWxhdGVkIGZpeGVzIHRvIHRoZSBwd20gLmFwcGx5IGFu ZCAuZ2V0X3N0YXRlIApjYWxsYmFja3MuCgpUaGUgZmlyc3QgcGF0Y2ggd2FzIG9yaWdpbmFsbHkg cGFydCBvZiB0aGUgc2VyaWVzIGFkZGluZyBBcm1hZGEgOEsvN0sgcHdtIApzdXBwb3J0LiBJIHNw bGl0IGl0IG91dCB0byBhIHNlcGFyYXRlIHNlcmllcyBmb2xsb3dpbmcgcmV2aWV3IGNvbW1lbnRz IGZyb20gClV3ZSBLbGVpbmUtS8O2bmlnIHdobyBzcG90dGVkIGEgZmV3IG1vcmUgaXNzdWVzLiBU aGVyZSBpcyBubyBkZXBlbmRlbmN5IGJldHdlZW4gCnRoaXMgYW5kIHRoZSBBcm1hZGEgOEsvN0sg c2VyaWVzLgoKdjQ6CgogICogVGFrZSBhZHZhbnRhZ2Ugb2YgemVybyB2YWx1ZSBiZWluZyB0cmVh dGVkIGFzIDJeMzIgYnkgaGFyZHdhcmUuIFJld3JpdGUgCiAgICBwYXRjaCA1LzUgKFV3ZSkuCgp2 MzoKCiAgKiBJbXByb3ZlIHBhdGNoIDMvNSBkZXNjcmlwdGlvbiAoVXdlKQoKICAqIEFkZCBtb3Jl IFJldmlld2VkLWJ5IHRhZ3MgZnJvbSBVd2UKCnYyOgoKQWRkcmVzcyBVd2UgS2xlaW5lLUvDtm5p ZyBjb21tZW50cy4KCiAgKiBJbXByb3ZlIHBhdGNoIDEvNSBzdW1tYXJ5IGxpbmUKCiAgKiBBZGQg bW9yZSBpbmZvcm1hdGlvbiB0byBwYXRjaCAxLzUgZGVzY3JpcHRpb24KCiAgKiBBZGQgbW9yZSBp bmZvcm1hdGlvbiB0byBwYXRjaCAyLzUgZGVzY3JpcHRpb24KCiAgKiBEb24ndCByb3VuZCBwZXJp b2QvZHV0eV9jeWNsZSB1cCBpbiAuYXBwbHkgKHBhdGNoIDMvNSkKCiAgKiBFeHBhbmQgdGhlIGNv bW1lbnQgaW4gcGF0aCA1LzUgYmFzZWQgb24gUk1LJ3MgYW5hbHlzaXMgb2YgaGFyZHdhcmUgCiAg ICBiZWhhdmlvdXIKCiAgKiBBZGQgVXdlJ3MgUmV2aWV3ZWQtYnkgdGFncwoKQmFydWNoIFNpYWNo ICg1KToKICBncGlvOiBtdmVidTogZml4IHB3bSAuZ2V0X3N0YXRlIHBlcmlvZCBjYWxjdWxhdGlv bgogIGdwaW86IG12ZWJ1OiBpbXByb3ZlIHB3bSBwZXJpb2QgY2FsY3VsYXRpb24gYWNjdXJhY3kK ICBncGlvOiBtdmVidTogbWFrZSBwd20gLmdldF9zdGF0ZSBjbG9zZXIgdG8gaWRlbXBvdGVudAog IGdwaW86IG12ZWJ1OiBkb24ndCBsaW1pdCBwd20gcGVyaW9kL2R1dHlfY3ljbGUgdG8gVUlOVF9N QVgKICBncGlvOiBtdmVidTogaW1wcm92ZSBoYW5kbGluZyBvZiBwd20gemVybyBvbi9vZmYgdmFs dWVzCgogZHJpdmVycy9ncGlvL2dwaW8tbXZlYnUuYyB8IDUxICsrKysrKysrKysrKysrKysrKyst LS0tLS0tLS0tLS0tLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDI1IGluc2VydGlvbnMoKyksIDI2 IGRlbGV0aW9ucygtKQoKLS0gCjIuMjkuMgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFy bS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9t YWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK