From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-20.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BDEFDC433FE for ; Fri, 24 Sep 2021 12:52:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A79D8613D0 for ; Fri, 24 Sep 2021 12:52:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343965AbhIXMxz (ORCPT ); Fri, 24 Sep 2021 08:53:55 -0400 Received: from mail.kernel.org ([198.145.29.99]:45884 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344586AbhIXMwU (ORCPT ); Fri, 24 Sep 2021 08:52:20 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0A81D610CF; Fri, 24 Sep 2021 12:49:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1632487770; bh=lrw5VuysEtvhvv3KIILgqW21209M0KZA9cRbMYnP3Lg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bo/9YrlNByAomp+GaQOdTfjdg7i7z9HmXA2xW1YovJVDUELteI+QzgpPBIzozRIoA qLXw8jOaV8U1KZAXl+LnlQqsZCtgDV+w/EXPR3Zvw/WpRRCpw1QIGgV3XT7yjwrdCe 6bLwdEr7EL7MrMorsiSmgJahc+f9y/Xxs7uwFzrw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Thierry Reding , Sasha Levin Subject: [PATCH 4.19 30/34] pwm: img: Dont modify HW state in .remove() callback Date: Fri, 24 Sep 2021 14:44:24 +0200 Message-Id: <20210924124330.952649700@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210924124329.965218583@linuxfoundation.org> References: <20210924124329.965218583@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Uwe Kleine-König [ Upstream commit c68eb29c8e9067c08175dd0414f6984f236f719d ] A consumer is expected to disable a PWM before calling pwm_put(). And if they didn't there is hopefully a good reason (or the consumer needs fixing). Also if disabling an enabled PWM was the right thing to do, this should better be done in the framework instead of in each low level driver. Signed-off-by: Uwe Kleine-König Signed-off-by: Thierry Reding Signed-off-by: Sasha Levin --- drivers/pwm/pwm-img.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/pwm/pwm-img.c b/drivers/pwm/pwm-img.c index 3b0a097ce2ab..6111e8848b07 100644 --- a/drivers/pwm/pwm-img.c +++ b/drivers/pwm/pwm-img.c @@ -332,23 +332,7 @@ err_pm_disable: static int img_pwm_remove(struct platform_device *pdev) { struct img_pwm_chip *pwm_chip = platform_get_drvdata(pdev); - u32 val; - unsigned int i; - int ret; - - ret = pm_runtime_get_sync(&pdev->dev); - if (ret < 0) { - pm_runtime_put(&pdev->dev); - return ret; - } - - for (i = 0; i < pwm_chip->chip.npwm; i++) { - val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG); - val &= ~BIT(i); - img_pwm_writel(pwm_chip, PWM_CTRL_CFG, val); - } - pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); if (!pm_runtime_status_suspended(&pdev->dev)) img_pwm_runtime_suspend(&pdev->dev); -- 2.33.0