From patchwork Thu Apr 14 19:17:25 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 8842451 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 41ACDC0553 for ; Thu, 14 Apr 2016 19:28:24 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5A79620373 for ; Thu, 14 Apr 2016 19:28:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6FBF8200FE for ; Thu, 14 Apr 2016 19:28:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751413AbcDNT16 (ORCPT ); Thu, 14 Apr 2016 15:27:58 -0400 Received: from down.free-electrons.com ([37.187.137.238]:33600 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751908AbcDNTSS (ORCPT ); Thu, 14 Apr 2016 15:18:18 -0400 Received: by mail.free-electrons.com (Postfix, from userid 110) id C915C1B26; Thu, 14 Apr 2016 21:18:14 +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 0ADD3B2C; Thu, 14 Apr 2016 21:18:02 +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 05/24] input: misc: max77693: use pwm_get_args() where appropriate Date: Thu, 14 Apr 2016 21:17:25 +0200 Message-Id: <1460661464-11216-6-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 --- drivers/input/misc/max77693-haptic.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c index 6d96bff..29ddeb7 100644 --- a/drivers/input/misc/max77693-haptic.c +++ b/drivers/input/misc/max77693-haptic.c @@ -70,10 +70,13 @@ struct max77693_haptic { static int max77693_haptic_set_duty_cycle(struct max77693_haptic *haptic) { - int delta = (haptic->pwm_dev->period + haptic->pwm_duty) / 2; + struct pwm_args pargs; + int delta; int error; - error = pwm_config(haptic->pwm_dev, delta, haptic->pwm_dev->period); + pwm_get_args(haptic->pwm_dev, &pargs); + delta = (pargs.period + haptic->pwm_duty) / 2; + error = pwm_config(haptic->pwm_dev, delta, pargs.period); if (error) { dev_err(haptic->dev, "failed to configure pwm: %d\n", error); return error; @@ -234,6 +237,7 @@ static int max77693_haptic_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect) { struct max77693_haptic *haptic = input_get_drvdata(dev); + struct pwm_args pargs; u64 period_mag_multi; haptic->magnitude = effect->u.rumble.strong_magnitude; @@ -245,7 +249,8 @@ static int max77693_haptic_play_effect(struct input_dev *dev, void *data, * The formula to convert magnitude to pwm_duty as follows: * - pwm_duty = (magnitude * pwm_period) / MAX_MAGNITUDE(0xFFFF) */ - period_mag_multi = (u64)haptic->pwm_dev->period * haptic->magnitude; + pwm_get_args(haptic->pwm_dev, &pargs); + period_mag_multi = (u64)pargs.period * haptic->magnitude; haptic->pwm_duty = (unsigned int)(period_mag_multi >> MAX_MAGNITUDE_SHIFT); @@ -329,6 +334,12 @@ static int max77693_haptic_probe(struct platform_device *pdev) return PTR_ERR(haptic->pwm_dev); } + /* + * FIXME: pwm_apply_args() should be removed when switching to the + * atomic PWM API. + */ + pwm_apply_args(haptic->pwm_dev); + haptic->motor_reg = devm_regulator_get(&pdev->dev, "haptic"); if (IS_ERR(haptic->motor_reg)) { dev_err(&pdev->dev, "failed to get regulator\n");