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[23.128.96.18]) by mx.google.com with ESMTP id mj23si512553ejb.746.2020.06.29.14.48.47; Mon, 29 Jun 2020 14:49:11 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=QE1fMEf1; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391472AbgF2Vrr (ORCPT + 99 others); Mon, 29 Jun 2020 17:47:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:56762 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726723AbgF2Sfn (ORCPT ); Mon, 29 Jun 2020 14:35:43 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AB9FC24199; Mon, 29 Jun 2020 15:19:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593443955; bh=o/TYTOT46rvqTePLmOZ9wOwdpWqkKPYJbiOXuA4zRLQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QE1fMEf19wZKWZ4k9XdIKKVc6+Ur60u4I2T2iE9hOwFQVvoyWT5clwx4x/vnP9aT2 tVW9nOSSyYz8UQB7b1H/0PR1fC01AbTyJQADZW1unE0cuAoe9tjU7FF/ryYkX7vc20 SZrq18p1FAtVv68jUngL78POMq+hmjH4OTz/bwY8= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Thierry Reding , Sasha Levin Subject: [PATCH 5.7 057/265] Revert "i2c: tegra: Fix suspending in active runtime PM state" Date: Mon, 29 Jun 2020 11:14:50 -0400 Message-Id: <20200629151818.2493727-58-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200629151818.2493727-1-sashal@kernel.org> References: <20200629151818.2493727-1-sashal@kernel.org> MIME-Version: 1.0 X-KernelTest-Patch: http://kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.7.7-rc1.gz X-KernelTest-Tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git X-KernelTest-Branch: linux-5.7.y X-KernelTest-Patches: git://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git X-KernelTest-Version: 5.7.7-rc1 X-KernelTest-Deadline: 2020-07-01T15:14+00:00 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Thierry Reding [ Upstream commit 78ad73421831247e46c31899a7bead02740e4bef ] This reverts commit 9f42de8d4ec2304f10bbc51dc0484f3503d61196. It's not safe to use pm_runtime_force_{suspend,resume}(), especially during the noirq phase of suspend. See also the guidance provided in commit 1e2ef05bb8cf ("PM: Limit race conditions between runtime PM and system sleep (v2)"). Signed-off-by: Thierry Reding Signed-off-by: Sasha Levin --- drivers/i2c/busses/i2c-tegra.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 4c4d17ddc96b9..7c88611c732c4 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -1769,14 +1769,9 @@ static int tegra_i2c_remove(struct platform_device *pdev) static int __maybe_unused tegra_i2c_suspend(struct device *dev) { struct tegra_i2c_dev *i2c_dev = dev_get_drvdata(dev); - int err; i2c_mark_adapter_suspended(&i2c_dev->adapter); - err = pm_runtime_force_suspend(dev); - if (err < 0) - return err; - return 0; } @@ -1797,10 +1792,6 @@ static int __maybe_unused tegra_i2c_resume(struct device *dev) if (err) return err; - err = pm_runtime_force_resume(dev); - if (err < 0) - return err; - i2c_mark_adapter_resumed(&i2c_dev->adapter); return 0; -- 2.25.1