From patchwork Mon Jul 26 13:59:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Nikita Shubin X-Patchwork-Id: 1510064 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pwm-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=maquefel.me header.i=@maquefel.me header.a=rsa-sha256 header.s=mail header.b=LSbUCMWU; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4GYMD26nBgz9sRK for ; Tue, 27 Jul 2021 00:06:26 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234094AbhGZNZ4 (ORCPT ); Mon, 26 Jul 2021 09:25:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233713AbhGZNZ4 (ORCPT ); Mon, 26 Jul 2021 09:25:56 -0400 X-Greylist: delayed 291 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Mon, 26 Jul 2021 07:06:24 PDT Received: from forward106p.mail.yandex.net (forward106p.mail.yandex.net [IPv6:2a02:6b8:0:1472:2741:0:8b7:109]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9F853C061757 for ; Mon, 26 Jul 2021 07:06:24 -0700 (PDT) Received: from myt6-22bd3499f8ff.qloud-c.yandex.net (myt6-22bd3499f8ff.qloud-c.yandex.net [IPv6:2a02:6b8:c12:239b:0:640:22bd:3499]) by forward106p.mail.yandex.net (Yandex) with ESMTP id 451911C8236B; Mon, 26 Jul 2021 17:01:31 +0300 (MSK) Received: from myt3-07a4bd8655f2.qloud-c.yandex.net (myt3-07a4bd8655f2.qloud-c.yandex.net [2a02:6b8:c12:693:0:640:7a4:bd86]) by myt6-22bd3499f8ff.qloud-c.yandex.net (mxback/Yandex) with ESMTP id nR4srztfoV-1VHC9flO; Mon, 26 Jul 2021 17:01:31 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maquefel.me; s=mail; t=1627308091; bh=19r/IJH5zjWBxHf0yF/eDrBrzuQx5ewvS9HfSxCtqEk=; h=In-Reply-To:References:Date:Subject:To:From:Message-Id:Cc; b=LSbUCMWULaq1/iJWROWo2qNOLoBAYdc3t2qdkUp3j+FTVquOjAQ5SGzT+KuPhMV/n r7Pz8r2+E1JFbe+UKgYINUIIlc8PWHsQOQkOKWNuEDjKjaBN0F8gN7fHXymEKZQ9DO JCAx6Kratrv0gR4V5U1yMxEed6lVQKwnWKWu0ESo= Authentication-Results: myt6-22bd3499f8ff.qloud-c.yandex.net; dkim=pass header.i=@maquefel.me Received: by myt3-07a4bd8655f2.qloud-c.yandex.net (smtp/Yandex) with ESMTPSA id olJ9yWy468-1U2iFbK5; Mon, 26 Jul 2021 17:01:30 +0300 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client certificate not present) From: Nikita Shubin To: Alexander Sverdlin , Geert Uytterhoeven Cc: Nikita Shubin , =?utf-8?q?Uwe_Kleine-K=C3=B6n?= =?utf-8?q?ig?= , Thierry Reding , Lee Jones , linux-pwm@vger.kernel.org (open list:PWM SUBSYSTEM), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 7/8] pwm: ep93xx: Prepare clock before using it Date: Mon, 26 Jul 2021 16:59:55 +0300 Message-Id: <20210726140001.24820-8-nikita.shubin@maquefel.me> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210726140001.24820-1-nikita.shubin@maquefel.me> References: <20210726115058.23729-1-nikita.shubin@maquefel.me> <20210726140001.24820-1-nikita.shubin@maquefel.me> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org From: Alexander Sverdlin Use clk_prepare_enable()/clk_disable_unprepare() in preparation for switch to Common Clock Framework. Signed-off-by: Alexander Sverdlin Reviewed-by: Uwe Kleine-König Signed-off-by: Nikita Shubin --- drivers/pwm/pwm-ep93xx.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/pwm/pwm-ep93xx.c b/drivers/pwm/pwm-ep93xx.c index 4ca70794ad96..8c0d4d69d9e6 100644 --- a/drivers/pwm/pwm-ep93xx.c +++ b/drivers/pwm/pwm-ep93xx.c @@ -74,7 +74,7 @@ static int ep93xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, * Configuration can be changed at any time. */ if (!pwm_is_enabled(pwm)) { - ret = clk_enable(ep93xx_pwm->clk); + ret = clk_prepare_enable(ep93xx_pwm->clk); if (ret) return ret; } @@ -105,7 +105,7 @@ static int ep93xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, } if (!pwm_is_enabled(pwm)) - clk_disable(ep93xx_pwm->clk); + clk_disable_unprepare(ep93xx_pwm->clk); return ret; } @@ -120,7 +120,7 @@ static int ep93xx_pwm_polarity(struct pwm_chip *chip, struct pwm_device *pwm, * The clock needs to be enabled to access the PWM registers. * Polarity can only be changed when the PWM is disabled. */ - ret = clk_enable(ep93xx_pwm->clk); + ret = clk_prepare_enable(ep93xx_pwm->clk); if (ret) return ret; @@ -129,7 +129,7 @@ static int ep93xx_pwm_polarity(struct pwm_chip *chip, struct pwm_device *pwm, else writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_INVERT); - clk_disable(ep93xx_pwm->clk); + clk_disable_unprepare(ep93xx_pwm->clk); return 0; } @@ -139,7 +139,7 @@ static int ep93xx_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip); int ret; - ret = clk_enable(ep93xx_pwm->clk); + ret = clk_prepare_enable(ep93xx_pwm->clk); if (ret) return ret; @@ -153,7 +153,7 @@ static void ep93xx_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip); writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_ENABLE); - clk_disable(ep93xx_pwm->clk); + clk_disable_unprepare(ep93xx_pwm->clk); } static const struct pwm_ops ep93xx_pwm_ops = {