From patchwork Thu Apr 14 19:17:27 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 8842381 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 427029F54F for ; Thu, 14 Apr 2016 19:27:47 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5A437200FE for ; Thu, 14 Apr 2016 19:27:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5F6DC20122 for ; Thu, 14 Apr 2016 19:27:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751090AbcDNT12 (ORCPT ); Thu, 14 Apr 2016 15:27:28 -0400 Received: from down.free-electrons.com ([37.187.137.238]:33649 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751660AbcDNTSY (ORCPT ); Thu, 14 Apr 2016 15:18:24 -0400 Received: by mail.free-electrons.com (Postfix, from userid 110) id E93071BF0; Thu, 14 Apr 2016 21:18:21 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from localhost.localdomain (LFbn-1-2159-240.w90-76.abo.wanadoo.fr [90.76.216.240]) by mail.free-electrons.com (Postfix) with ESMTPSA id 430A34F9; Thu, 14 Apr 2016 21:18:08 +0200 (CEST) From: Boris Brezillon To: Thierry Reding , linux-pwm@vger.kernel.org Cc: Mike Turquette , Stephen Boyd , linux-clk@vger.kernel.org, Mark Brown , Liam Girdwood , Kamil Debski , lm-sensors@lm-sensors.org, Jean Delvare , Guenter Roeck , Dmitry Torokhov , linux-input@vger.kernel.org, Bryan Wu , Richard Purdie , Jacek Anaszewski , linux-leds@vger.kernel.org, Maxime Ripard , Chen-Yu Tsai , linux-sunxi@googlegroups.com, Joachim Eastwood , Thomas Petazzoni , Heiko Stuebner , linux-rockchip@lists.infradead.org, Jingoo Han , Lee Jones , linux-fbdev@vger.kernel.org, Jean-Christophe Plagniol-Villard , Tomi Valkeinen , Robert Jarzmik , Alexandre Belloni , Kukjin Kim , Krzysztof Kozlowski , linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, Daniel Vetter , Jani Nikula , Jonathan Corbet , linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Hartley Sweeten , Ryan Mallon , Alexander Shiyan , Milo Kim , Doug Anderson , Caesar Wang , Stephen Barber , Boris Brezillon Subject: [PATCH v5 07/24] regulator: pwm: use pwm_get_args() where appropriate Date: Thu, 14 Apr 2016 21:17:27 +0200 Message-Id: <1460661464-11216-8-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1460661464-11216-1-git-send-email-boris.brezillon@free-electrons.com> References: <1460661464-11216-1-git-send-email-boris.brezillon@free-electrons.com> Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The PWM framework has clarified the concept of reference PWM config (the platform dependent config retrieved from the DT or the PWM lookup table) and real PWM state. Use pwm_get_args() when the PWM user wants to retrieve this reference config and not the current state. This is part of the rework allowing the PWM framework to support hardware readout and expose real PWM state even when the PWM has just been requested (before the user calls pwm_config/enable/disable()). Signed-off-by: Boris Brezillon Acked-by: Mark Brown --- drivers/regulator/pwm-regulator.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index 4689d62..ffdb895 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -59,16 +59,16 @@ static int pwm_regulator_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { struct pwm_regulator_data *drvdata = rdev_get_drvdata(rdev); - unsigned int pwm_reg_period; + struct pwm_args pargs; int dutycycle; int ret; - pwm_reg_period = pwm_get_period(drvdata->pwm); + pwm_get_args(drvdata->pwm, &pargs); - dutycycle = (pwm_reg_period * + dutycycle = (pargs.period * drvdata->duty_cycle_table[selector].dutycycle) / 100; - ret = pwm_config(drvdata->pwm, dutycycle, pwm_reg_period); + ret = pwm_config(drvdata->pwm, dutycycle, pargs.period); if (ret) { dev_err(&rdev->dev, "Failed to configure PWM\n"); return ret; @@ -138,13 +138,15 @@ static int pwm_regulator_set_voltage(struct regulator_dev *rdev, { struct pwm_regulator_data *drvdata = rdev_get_drvdata(rdev); unsigned int ramp_delay = rdev->constraints->ramp_delay; - unsigned int period = pwm_get_period(drvdata->pwm); + struct pwm_args pargs; int duty_cycle; int ret; + pwm_get_args(drvdata->pwm, &pargs); duty_cycle = pwm_voltage_to_duty_cycle_percentage(rdev, min_uV); - ret = pwm_config(drvdata->pwm, (period / 100) * duty_cycle, period); + ret = pwm_config(drvdata->pwm, (pargs.period / 100) * duty_cycle, + pargs.period); if (ret) { dev_err(&rdev->dev, "Failed to configure PWM\n"); return ret; @@ -281,6 +283,12 @@ static int pwm_regulator_probe(struct platform_device *pdev) return PTR_ERR(drvdata->pwm); } + /* + * FIXME: pwm_apply_args() should be removed when switching to the + * atomic PWM API. + */ + pwm_apply_args(drvdata->pwm); + regulator = devm_regulator_register(&pdev->dev, &drvdata->desc, &config); if (IS_ERR(regulator)) {