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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 6D051C282CE for ; Wed, 22 May 2019 19:32:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 400BC2081C for ; Wed, 22 May 2019 19:32:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558553548; bh=16dz7yIbF4tqwlAlu4lrHwAbuOYtcPXtVa2FpsU2rxo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=GnD58JL5r7bVe/hpDoB83AuVjh8FKU1FPKWCTBpIrjOyXcoWGcQcnsxqkTreQJl9F UhfvXl0MU+ZxXa1O7j/bh6TjT6RrIrxthzm6hKeLVij/GBL23HIU6MLUNU62jnF60g miJFhLZ4QO7sHkceSnI6mY9cqufCQ3qW5mIdgAdA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387818AbfEVTc1 (ORCPT ); Wed, 22 May 2019 15:32:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:56070 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387795AbfEVTcR (ORCPT ); Wed, 22 May 2019 15:32:17 -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 31A2C204FD; Wed, 22 May 2019 19:32:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558553536; bh=16dz7yIbF4tqwlAlu4lrHwAbuOYtcPXtVa2FpsU2rxo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=d1SUDCx78WjJnHLLGpdZwVV+dkUVuNKZQQtDZWq++t01uk0lUj2sFdORi4szbuy+V Ls1G7kIwJeJkXNYQpRvoPa2ph19lmQwmnBMfAGgT1BsXjvR6i/eCXblSF8dX7vx70I hnKGufoEPkaxbR9n9SSalmfXHksI2mMS0aAFRgr0= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Janusz Krzysztofik , Sakari Ailus , Mauro Carvalho Chehab , Sasha Levin , linux-media@vger.kernel.org Subject: [PATCH AUTOSEL 4.4 31/92] media: ov6650: Move v4l2_clk_get() to ov6650_video_probe() helper Date: Wed, 22 May 2019 15:30:26 -0400 Message-Id: <20190522193127.27079-31-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190522193127.27079-1-sashal@kernel.org> References: <20190522193127.27079-1-sashal@kernel.org> MIME-Version: 1.0 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: Janusz Krzysztofik [ Upstream commit ccdd85d518d8b9320ace1d87271f0ba2175f21fa ] In preparation for adding asynchronous subdevice support to the driver, don't acquire v4l2_clk from the driver .probe() callback as that may fail if the clock is provided by a bridge driver which may be not yet initialized. Move the v4l2_clk_get() to ov6650_video_probe() helper which is going to be converted to v4l2_subdev_internal_ops.registered() callback, executed only when the bridge driver is ready. Signed-off-by: Janusz Krzysztofik Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/i2c/soc_camera/ov6650.c | 25 ++++++++++++++----------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/drivers/media/i2c/soc_camera/ov6650.c b/drivers/media/i2c/soc_camera/ov6650.c index 1e4783b51a351..c4004888bfd39 100644 --- a/drivers/media/i2c/soc_camera/ov6650.c +++ b/drivers/media/i2c/soc_camera/ov6650.c @@ -839,9 +839,16 @@ static int ov6650_video_probe(struct i2c_client *client) u8 pidh, pidl, midh, midl; int ret; + priv->clk = v4l2_clk_get(&client->dev, NULL); + if (IS_ERR(priv->clk)) { + ret = PTR_ERR(priv->clk); + dev_err(&client->dev, "v4l2_clk request err: %d\n", ret); + return ret; + } + ret = ov6650_s_power(&priv->subdev, 1); if (ret < 0) - return ret; + goto eclkput; /* * check and show product ID and manufacturer ID @@ -876,6 +883,11 @@ static int ov6650_video_probe(struct i2c_client *client) done: ov6650_s_power(&priv->subdev, 0); + if (!ret) + return 0; +eclkput: + v4l2_clk_put(priv->clk); + return ret; } @@ -1033,18 +1045,9 @@ static int ov6650_probe(struct i2c_client *client, priv->code = MEDIA_BUS_FMT_YUYV8_2X8; priv->colorspace = V4L2_COLORSPACE_JPEG; - priv->clk = v4l2_clk_get(&client->dev, NULL); - if (IS_ERR(priv->clk)) { - ret = PTR_ERR(priv->clk); - goto eclkget; - } - ret = ov6650_video_probe(client); - if (ret) { - v4l2_clk_put(priv->clk); -eclkget: + if (ret) v4l2_ctrl_handler_free(&priv->hdl); - } return ret; } -- 2.20.1