From patchwork Thu Jan 14 18:57:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Baruch Siach X-Patchwork-Id: 1426614 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4DGtrR71XQz9sVw for ; Fri, 15 Jan 2021 05:58:47 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727017AbhANS6b (ORCPT ); Thu, 14 Jan 2021 13:58:31 -0500 Received: from guitar.tcltek.co.il ([192.115.133.116]:47395 "EHLO mx.tkos.co.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726395AbhANS6a (ORCPT ); Thu, 14 Jan 2021 13:58:30 -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 C2045440458; Thu, 14 Jan 2021 20:57:45 +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 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 v3 0/5] gpio: mvebu: pwm fixes and improvements Date: Thu, 14 Jan 2021 20:57:32 +0200 Message-Id: X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 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. 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: document zero pwm duty cycle limitation drivers/gpio/gpio-mvebu.c | 33 +++++++++++++++------------------ 1 file changed, 15 insertions(+), 18 deletions(-)