From patchwork Tue Nov 9 13:10:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kepplinger X-Patchwork-Id: 78314 X-Patchwork-Delegate: sakari.ailus@iki.fi Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1mkQtq-005t1P-H9; Tue, 09 Nov 2021 13:10:54 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234582AbhKINNh (ORCPT + 1 other); Tue, 9 Nov 2021 08:13:37 -0500 Received: from comms.puri.sm ([159.203.221.185]:47352 "EHLO comms.puri.sm" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234488AbhKINNg (ORCPT ); Tue, 9 Nov 2021 08:13:36 -0500 Received: from localhost (localhost [127.0.0.1]) by comms.puri.sm (Postfix) with ESMTP id 47ECAE0304; Tue, 9 Nov 2021 05:10:50 -0800 (PST) Received: from comms.puri.sm ([127.0.0.1]) by localhost (comms.puri.sm [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LPH1gB_nCPrf; Tue, 9 Nov 2021 05:10:49 -0800 (PST) From: Martin Kepplinger To: sakari.ailus@linux.intel.com, mchehab@kernel.org Cc: linux-media@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@puri.sm, Martin Kepplinger Subject: [PATCH v1 2/2] media: i2c: hi846: use pm_runtime_force_suspend/resume for system suspend Date: Tue, 9 Nov 2021 14:10:13 +0100 Message-Id: <20211109131013.2684058-3-martin.kepplinger@puri.sm> In-Reply-To: <20211109131013.2684058-1-martin.kepplinger@puri.sm> References: <20211109131013.2684058-1-martin.kepplinger@puri.sm> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.4 (--) X-LSpam-Report: No, score=-2.4 required=5.0 tests=BAYES_00=-1.9,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no In cases like this when controlling regulators and clocks the suspend() and resume() functions are meant to be called balanced toggling the behaviour. It's wrong to use the same suspend function for runtime and system suspend in this case and leads to errors like [ 77.718890] Failed to disable vddd: -EIO Use pm_runtime_force_* helpers in order to support system suspend properly when runtime pm is already implemented and fix this. Signed-off-by: Martin Kepplinger --- drivers/media/i2c/hi846.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/hi846.c b/drivers/media/i2c/hi846.c index ed55c3894284..9bb96754a091 100644 --- a/drivers/media/i2c/hi846.c +++ b/drivers/media/i2c/hi846.c @@ -2418,7 +2418,11 @@ static int hi846_remove(struct i2c_client *client) return 0; } -static UNIVERSAL_DEV_PM_OPS(hi846_pm_ops, hi846_suspend, hi846_resume, NULL); +static const struct dev_pm_ops hi846_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) + SET_RUNTIME_PM_OPS(hi846_suspend, hi846_resume, NULL) +}; static const struct of_device_id hi846_of_match[] = { { .compatible = "hynix,hi846", },