From patchwork Tue May 22 12:07:11 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 918239 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pwm-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=microchip.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40qvbv1DPYz9s76 for ; Tue, 22 May 2018 22:10:19 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751499AbeEVMIl (ORCPT ); Tue, 22 May 2018 08:08:41 -0400 Received: from esa4.microchip.iphmx.com ([68.232.154.123]:32405 "EHLO esa4.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753023AbeEVMIi (ORCPT ); Tue, 22 May 2018 08:08:38 -0400 X-IronPort-AV: E=Sophos;i="5.49,430,1520924400"; d="scan'208";a="14214844" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa4.microchip.iphmx.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 22 May 2018 05:08:37 -0700 Received: from m18063-ThinkPad-T460p.microchip.com (10.10.76.4) by chn-sv-exch05.mchp-main.com (10.10.76.106) with Microsoft SMTP Server id 14.3.352.0; Tue, 22 May 2018 05:08:36 -0700 From: Claudiu Beznea To: , , , , , , CC: , , , Claudiu Beznea Subject: [PATCH v5 7/9] pwm: add push-pull mode support Date: Tue, 22 May 2018 15:07:11 +0300 Message-ID: <1526990833-30707-8-git-send-email-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1526990833-30707-1-git-send-email-claudiu.beznea@microchip.com> References: <1526990833-30707-1-git-send-email-claudiu.beznea@microchip.com> MIME-Version: 1.0 Sender: linux-pwm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org Add push-pull mode support. In push-pull mode the channels' outputs have same polarities and the edges are complementary delayed for one period. Signed-off-by: Claudiu Beznea --- drivers/pwm/core.c | 1 + include/linux/pwm.h | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 59a9df9120de..5fde2e685ca7 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -348,6 +348,7 @@ const char *pwm_mode_desc(struct pwm_device *pwm, unsigned long mode) "invalid", "normal", "complementary", + "push-pull", }; if (!pwm_mode_valid(pwm, mode)) diff --git a/include/linux/pwm.h b/include/linux/pwm.h index a4ce4ad7edf0..eb170e2ab431 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -29,11 +29,14 @@ enum pwm_polarity { * PWM modes capabilities * @PWMC_MODE_NORMAL_BIT: PWM has one output * @PWMC_MODE_COMPLEMENTARY_BIT: PWM has 2 outputs with opposite polarities + * @PWMC_MODE_PUSH_PULL_BIT: PWM has 2 outputs with same polarities and the + * edges are complementary delayed for one period * @PWMC_MODE_CNT: PWM modes count */ enum { PWMC_MODE_NORMAL_BIT, PWMC_MODE_COMPLEMENTARY_BIT, + PWMC_MODE_PUSH_PULL_BIT, PWMC_MODE_CNT, };