From patchwork Thu Sep 14 18:16:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 13385801 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE5B8EEAA5D for ; Thu, 14 Sep 2023 18:18:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241594AbjINSSJ (ORCPT ); Thu, 14 Sep 2023 14:18:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241580AbjINSSI (ORCPT ); Thu, 14 Sep 2023 14:18:08 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F192B1FFF for ; Thu, 14 Sep 2023 11:18:03 -0700 (PDT) Received: from pendragon.ideasonboard.com (213-243-189-158.bb.dnainternet.fi [213.243.189.158]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 1660D87E3; Thu, 14 Sep 2023 20:16:30 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1694715390; bh=O902bjCwtHM6V8caEVi13JONVMHxP2kqA85j5l+Ji8w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZIrvEvJfnr8hQVrDtLPRTQDZox0yi2Ui+wjo9IVmsu/sAEugmEfjeTqf06WWzTLZU KWrvXARllJLPVyI8a+IylELCoMy92x4zKDMc2ycEnkQZuZXg7JVWcK857ruhLCTMhD Lfe/P9PWWEqllzheP9086Lsbchx4Rv2kNhjeMbrY= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Sakari Ailus Subject: [PATCH 51/57] media: i2c: ov13858: Drop system suspend and resume handlers Date: Thu, 14 Sep 2023 21:16:58 +0300 Message-ID: <20230914181704.4811-52-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230914181704.4811-1-laurent.pinchart@ideasonboard.com> References: <20230914181704.4811-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Stopping streaming on a camera pipeline at system suspend time, and restarting it at system resume time, requires coordinated action between the bridge driver and the camera sensor driver. This is handled by the bridge driver calling the sensor's .s_stream() handler at system suspend and resume time. There is thus no need for the sensor to independently implement system sleep PM operations. Drop them. The streaming field of the driver's private structure is now unused, drop it as well. Signed-off-by: Laurent Pinchart --- drivers/media/i2c/ov13858.c | 40 ------------------------------------- 1 file changed, 40 deletions(-) diff --git a/drivers/media/i2c/ov13858.c b/drivers/media/i2c/ov13858.c index b90ce338a47a..4c419014dd7b 100644 --- a/drivers/media/i2c/ov13858.c +++ b/drivers/media/i2c/ov13858.c @@ -1044,9 +1044,6 @@ struct ov13858 { /* Mutex for serialized access */ struct mutex mutex; - - /* Streaming on/off */ - bool streaming; }; #define to_ov13858(_sd) container_of(_sd, struct ov13858, sd) @@ -1485,7 +1482,6 @@ static int ov13858_set_stream(struct v4l2_subdev *sd, int enable) pm_runtime_put(&client->dev); } - ov13858->streaming = enable; mutex_unlock(&ov13858->mutex); return ret; @@ -1498,37 +1494,6 @@ static int ov13858_set_stream(struct v4l2_subdev *sd, int enable) return ret; } -static int __maybe_unused ov13858_suspend(struct device *dev) -{ - struct v4l2_subdev *sd = dev_get_drvdata(dev); - struct ov13858 *ov13858 = to_ov13858(sd); - - if (ov13858->streaming) - ov13858_stop_streaming(ov13858); - - return 0; -} - -static int __maybe_unused ov13858_resume(struct device *dev) -{ - struct v4l2_subdev *sd = dev_get_drvdata(dev); - struct ov13858 *ov13858 = to_ov13858(sd); - int ret; - - if (ov13858->streaming) { - ret = ov13858_start_streaming(ov13858); - if (ret) - goto error; - } - - return 0; - -error: - ov13858_stop_streaming(ov13858); - ov13858->streaming = false; - return ret; -} - /* Verify chip ID */ static int ov13858_identify_module(struct ov13858 *ov13858) { @@ -1783,10 +1748,6 @@ static const struct i2c_device_id ov13858_id_table[] = { MODULE_DEVICE_TABLE(i2c, ov13858_id_table); -static const struct dev_pm_ops ov13858_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(ov13858_suspend, ov13858_resume) -}; - #ifdef CONFIG_ACPI static const struct acpi_device_id ov13858_acpi_ids[] = { {"OVTID858"}, @@ -1799,7 +1760,6 @@ MODULE_DEVICE_TABLE(acpi, ov13858_acpi_ids); static struct i2c_driver ov13858_i2c_driver = { .driver = { .name = "ov13858", - .pm = &ov13858_pm_ops, .acpi_match_table = ACPI_PTR(ov13858_acpi_ids), }, .probe = ov13858_probe,