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 107C5C433FE for ; Fri, 24 Sep 2021 13:12:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EDC6460F39 for ; Fri, 24 Sep 2021 13:12:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346857AbhIXNOV (ORCPT ); Fri, 24 Sep 2021 09:14:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:38882 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346696AbhIXNKP (ORCPT ); Fri, 24 Sep 2021 09:10:15 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 13B3061529; Fri, 24 Sep 2021 12:58:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1632488290; bh=cHB/GLRWYlEG6alymObPpp6whcfSEBCn3AdLU1CnI5E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R3lacFNgyb85rtLDXkwyBbZrS5lfUvzVMon69/qn+ElH2cQHnGcR4CKF9OchY7f1O 39He9+cuU9zuT0I/eWyIeX9MibZeqOpT8o1V8IDQXEa9HYNXP2l4ztEcn9RCS/trle svy3n2Zq+klMWhSm0cJzl2QcqwIcXBelbKKcPzvU= 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 5.10 56/63] pwm: img: Dont modify HW state in .remove() callback Date: Fri, 24 Sep 2021 14:44:56 +0200 Message-Id: <20210924124336.193591111@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210924124334.228235870@linuxfoundation.org> References: <20210924124334.228235870@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 22c002e685b3..37f9b688661d 100644 --- a/drivers/pwm/pwm-img.c +++ b/drivers/pwm/pwm-img.c @@ -329,23 +329,7 @@ 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