From patchwork Thu Sep 14 18:16:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 722838 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 AC0A6EEAA60 for ; Thu, 14 Sep 2023 18:17:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241457AbjINSRw (ORCPT ); Thu, 14 Sep 2023 14:17:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57970 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241500AbjINSRv (ORCPT ); Thu, 14 Sep 2023 14:17:51 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B43251FFD for ; Thu, 14 Sep 2023 11:17:47 -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 D09958201; Thu, 14 Sep 2023 20:16:13 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1694715374; bh=aZQwSL/SuYgXsOsIB7zGaM+qk4kLbSJ820eztjl1a88=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JydEVX4KO1y1xYgw+Kntkd2s2t9yEgCmoeA9m2pfFECVSIoRFccDbuFrvk9sOcAQG C+jN1OO6FNi3SEsH5O3uOyzGALrcdMC/RzLy2o5xao0y3/2ZNwMYkCDE2XdsVBN+KD 0ZINw/hdxfxZ7Hemh93rGhz8kNoL6M2osvKYdXz4= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Sakari Ailus Subject: [PATCH 39/57] media: i2c: hi847: Drop system suspend and resume handlers Date: Thu, 14 Sep 2023 21:16:46 +0300 Message-ID: <20230914181704.4811-40-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/hi847.c | 52 --------------------------------------- 1 file changed, 52 deletions(-) diff --git a/drivers/media/i2c/hi847.c b/drivers/media/i2c/hi847.c index 32547d7a2659..35a334646ff5 100644 --- a/drivers/media/i2c/hi847.c +++ b/drivers/media/i2c/hi847.c @@ -2184,9 +2184,6 @@ struct hi847 { /* To serialize asynchronus callbacks */ struct mutex mutex; - - /* Streaming on/off */ - bool streaming; }; static u64 to_pixel_rate(u32 f_index) @@ -2618,9 +2615,6 @@ static int hi847_set_stream(struct v4l2_subdev *sd, int enable) struct i2c_client *client = v4l2_get_subdevdata(sd); int ret = 0; - if (hi847->streaming == enable) - return 0; - mutex_lock(&hi847->mutex); if (enable) { ret = pm_runtime_get_sync(&client->dev); @@ -2641,52 +2635,11 @@ static int hi847_set_stream(struct v4l2_subdev *sd, int enable) pm_runtime_put(&client->dev); } - hi847->streaming = enable; mutex_unlock(&hi847->mutex); return ret; } -static int __maybe_unused hi847_suspend(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct hi847 *hi847 = to_hi847(sd); - - mutex_lock(&hi847->mutex); - if (hi847->streaming) - hi847_stop_streaming(hi847); - - mutex_unlock(&hi847->mutex); - - return 0; -} - -static int __maybe_unused hi847_resume(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct hi847 *hi847 = to_hi847(sd); - int ret; - - mutex_lock(&hi847->mutex); - if (hi847->streaming) { - ret = hi847_start_streaming(hi847); - if (ret) - goto error; - } - - mutex_unlock(&hi847->mutex); - - return 0; - -error: - hi847_stop_streaming(hi847); - hi847->streaming = 0; - mutex_unlock(&hi847->mutex); - return ret; -} - static int hi847_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) @@ -2980,10 +2933,6 @@ static int hi847_probe(struct i2c_client *client) return ret; } -static const struct dev_pm_ops hi847_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(hi847_suspend, hi847_resume) -}; - #ifdef CONFIG_ACPI static const struct acpi_device_id hi847_acpi_ids[] = { {"HYV0847"}, @@ -2996,7 +2945,6 @@ MODULE_DEVICE_TABLE(acpi, hi847_acpi_ids); static struct i2c_driver hi847_i2c_driver = { .driver = { .name = "hi847", - .pm = &hi847_pm_ops, .acpi_match_table = ACPI_PTR(hi847_acpi_ids), }, .probe = hi847_probe,