From patchwork Wed Mar 30 20:03:30 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 8704491 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 DC62AC0553 for ; Wed, 30 Mar 2016 20:18:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 14EC3201EF for ; Wed, 30 Mar 2016 20:18:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 35D2D20160 for ; Wed, 30 Mar 2016 20:18:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932103AbcC3UEq (ORCPT ); Wed, 30 Mar 2016 16:04:46 -0400 Received: from down.free-electrons.com ([37.187.137.238]:44873 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752929AbcC3UEm (ORCPT ); Wed, 30 Mar 2016 16:04:42 -0400 Received: by mail.free-electrons.com (Postfix, from userid 110) id 0738B182B; Wed, 30 Mar 2016 22:04:40 +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 4F95417DA; Wed, 30 Mar 2016 22:04:28 +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, David Airlie , Daniel Vetter , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Hartley Sweeten , Ryan Mallon , Alexander Shiyan , Milo Kim , Boris Brezillon Subject: [PATCH v5 07/46] clk: pwm: use pwm_get_args() where appropriate Date: Wed, 30 Mar 2016 22:03:30 +0200 Message-Id: <1459368249-13241-8-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1459368249-13241-1-git-send-email-boris.brezillon@free-electrons.com> References: <1459368249-13241-1-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: Stephen Boyd --- drivers/clk/clk-pwm.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/clk/clk-pwm.c b/drivers/clk/clk-pwm.c index 8830458..ebcd738 100644 --- a/drivers/clk/clk-pwm.c +++ b/drivers/clk/clk-pwm.c @@ -56,6 +56,7 @@ static const struct clk_ops clk_pwm_ops = { static int clk_pwm_probe(struct platform_device *pdev) { struct device_node *node = pdev->dev.of_node; + struct pwm_args pargs = { }; struct clk_init_data init; struct clk_pwm *clk_pwm; struct pwm_device *pwm; @@ -71,22 +72,23 @@ static int clk_pwm_probe(struct platform_device *pdev) if (IS_ERR(pwm)) return PTR_ERR(pwm); - if (!pwm->period) { + pwm_get_args(pwm, &pargs); + if (!pargs.period) { dev_err(&pdev->dev, "invalid PWM period\n"); return -EINVAL; } if (of_property_read_u32(node, "clock-frequency", &clk_pwm->fixed_rate)) - clk_pwm->fixed_rate = NSEC_PER_SEC / pwm->period; + clk_pwm->fixed_rate = NSEC_PER_SEC / pargs.period; - if (pwm->period != NSEC_PER_SEC / clk_pwm->fixed_rate && - pwm->period != DIV_ROUND_UP(NSEC_PER_SEC, clk_pwm->fixed_rate)) { + if (pargs.period != NSEC_PER_SEC / clk_pwm->fixed_rate && + pargs.period != DIV_ROUND_UP(NSEC_PER_SEC, clk_pwm->fixed_rate)) { dev_err(&pdev->dev, "clock-frequency does not match PWM period\n"); return -EINVAL; } - ret = pwm_config(pwm, (pwm->period + 1) >> 1, pwm->period); + ret = pwm_config(pwm, (pargs.period + 1) >> 1, pargs.period); if (ret < 0) return ret;