Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933572AbcJ0GaP (ORCPT ); Thu, 27 Oct 2016 02:30:15 -0400 Received: from 19.mo4.mail-out.ovh.net ([87.98.179.66]:56402 "EHLO 19.mo4.mail-out.ovh.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932464AbcJ0GaO (ORCPT ); Thu, 27 Oct 2016 02:30:14 -0400 From: Lukasz Majewski To: Thierry Reding , Stefan Agner , Boris Brezillon Cc: linux-pwm@vger.kernel.org, linux-kernel@vger.kernel.org, Fabio Estevam , Fabio Estevam , Lothar Wassmann , Bhuvanchandra DV , kernel@pengutronix.de, Lukasz Majewski Subject: [PATCH v2 00/10] pwm: imx: Provide atomic operation for IMX PWM driver Date: Thu, 27 Oct 2016 08:29:36 +0200 Message-Id: <1477549785-4972-1-git-send-email-l.majewski@majess.pl> X-Mailer: git-send-email 2.1.4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Ovh-Tracer-Id: 11453779754482909829 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeelvddrjedtgdduudduucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddm Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2021 Lines: 59 This patch set brings atomic operation to i.MX's PWMv2 driver. This work has been supported and suggested by Boris Brezillon [1] and Stefan Agner, by showing how simple the transition could be :-). It has been divided into several steps: - Provide different pwm ops for PWMv1 and PWM v2 - Separate PWMv1 commits from "generic" and non atomic PWM code. NOTE: Since I do not have board with PWMv1, I would like to ask somebody for testing - Move some imx_config_v2 code to separate functions - Provide PWM atomic implementation (the ->apply() driver) for PWMv2 in a single patch for better readability. - Remove redundant PWM code (disable, enable, config callbacks) - Update proper documentation entries - Provide support for polarity inversion on top of atomic PWM rework Test HW: -------- This patch set has been tested on i.MX6q board with vanilla 4.7, 4.8 and v4.9-rc2 kernel SHA1: 07d9a380680d1c0eb51ef87ff2eab5c994949e69 The PWM operation has been tested with pwm_bl backlight driver by changing its brightness. [1]: http://patchwork.ozlabs.org/patch/685402/ Lothar Wassmann (2): pwm: print error messages with pr_err() instead of pr_debug() pwm: core: make the PWM_POLARITY flag in DTB optional Lukasz Majewski (8): pwm: imx: Add separate set of pwm ops for PWMv1 and PWMv2 pwm: imx: Rewrite imx_pwm_*_v1 code to facilitate switch to atomic pwm operation pwm: imx: Move PWMv2 software reset code to a separate function pwm: imx: Move PWMv2 wait for fifo slot code to a separate function pwm: imx: Provide atomic PWM support for i.MX PWMv2 pwm: imx: Remove redundant i.MX PWMv2 code pwm: imx: doc: Update imx-pwm.txt documentation entry pwm: imx: Add polarity inversion support to i.MX's PWMv2 Documentation/devicetree/bindings/pwm/imx-pwm.txt | 6 +- drivers/pwm/core.c | 26 ++- drivers/pwm/pwm-imx.c | 255 ++++++++++++---------- 3 files changed, 152 insertions(+), 135 deletions(-) -- 2.1.4