From patchwork Mon Apr 22 10:17:26 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Lad, Prabhakar" X-Patchwork-Id: 2471151 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id BFB2BDF23A for ; Mon, 22 Apr 2013 10:19:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753561Ab3DVKTU (ORCPT ); Mon, 22 Apr 2013 06:19:20 -0400 Received: from mail-pb0-f48.google.com ([209.85.160.48]:40571 "EHLO mail-pb0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753514Ab3DVKTS (ORCPT ); Mon, 22 Apr 2013 06:19:18 -0400 Received: by mail-pb0-f48.google.com with SMTP id xb4so337266pbc.35 for ; Mon, 22 Apr 2013 03:19:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=P/oNyqkLxc/Le6wc+pgVbO6Y9+i0dnzzz4vUKeeE1Kc=; b=ZhOSRwe6ufw8J4EdDnS5kbSC1skUIbBa8ggGcgtRcHhuCAD4tmQmZEzwmcEhdnMTq/ U5WTVfihTw8gBywuYWdsgZZz2twsoFzHv/wROkjJkkha/Iq4bH/p+t6Y9jQYiZH/qfNV w/FD/XbTeWIHwmdoTk1KSOgMtJttWDGIYFql3qXB0Tf7HrFovZZ+hPQa8bOggyr/AQXM /RactMkA9JS6vyNcNzXpyuTdKQFasv20ptQ+b7SF10Wbyvinvvz1z+xasRmUkh3TmmtJ K6ENutnpzXaIdIOzv6qidwijmuI7dxBBH5U5wSZPn/QfwIPqAdpFRim4p55znydkAprG XX0w== X-Received: by 10.66.72.3 with SMTP id z3mr27920462pau.125.1366625958144; Mon, 22 Apr 2013 03:19:18 -0700 (PDT) Received: from localhost.localdomain ([122.166.13.141]) by mx.google.com with ESMTPS id lo7sm26551295pab.19.2013.04.22.03.19.12 (version=TLSv1 cipher=RC4-SHA bits=128/128); Mon, 22 Apr 2013 03:19:16 -0700 (PDT) From: Prabhakar Lad To: LMML Cc: DLOS , LKML , "Lad, Prabhakar" , "Lad, Prabhakar" , Guennadi Liakhovetski , Laurent Pinchart , Hans Verkuil , Sakari Ailus , Mauro Carvalho Chehab Subject: [PATCH RFC v2 2/4] media: i2c: tvp514x: add support for asynchronous probing Date: Mon, 22 Apr 2013 15:47:26 +0530 Message-Id: <1366625848-743-3-git-send-email-prabhakar.csengg@gmail.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1366625848-743-1-git-send-email-prabhakar.csengg@gmail.com> References: <1366625848-743-1-git-send-email-prabhakar.csengg@gmail.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Lad, Prabhakar Both synchronous and asynchronous tvp514x subdevice probing is supported by this patch. Signed-off-by: Lad, Prabhakar Cc: Guennadi Liakhovetski Cc: Laurent Pinchart Cc: Hans Verkuil Cc: Sakari Ailus Cc: Mauro Carvalho Chehab --- drivers/media/i2c/tvp514x.c | 23 ++++++++++++++++------- 1 files changed, 16 insertions(+), 7 deletions(-) diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c index ab8f3fe..887bd93 100644 --- a/drivers/media/i2c/tvp514x.c +++ b/drivers/media/i2c/tvp514x.c @@ -36,6 +36,7 @@ #include #include +#include #include #include #include @@ -1109,9 +1110,9 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id) /* Register with V4L2 layer as slave device */ sd = &decoder->sd; v4l2_i2c_subdev_init(sd, client, &tvp514x_ops); - strlcpy(sd->name, TVP514X_MODULE_NAME, sizeof(sd->name)); #if defined(CONFIG_MEDIA_CONTROLLER) + strlcpy(sd->name, TVP514X_MODULE_NAME, sizeof(sd->name)); decoder->pad.flags = MEDIA_PAD_FL_SOURCE; decoder->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; decoder->sd.entity.flags |= MEDIA_ENT_T_V4L2_SUBDEV_DECODER; @@ -1138,16 +1139,23 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id) sd->ctrl_handler = &decoder->hdl; if (decoder->hdl.error) { ret = decoder->hdl.error; - - v4l2_ctrl_handler_free(&decoder->hdl); - return ret; + goto done; } v4l2_ctrl_handler_setup(&decoder->hdl); - v4l2_info(sd, "%s decoder driver registered !!\n", sd->name); - - return 0; + decoder->sd.dev = &client->dev; + ret = v4l2_async_register_subdev(&decoder->sd); + if (!ret) + v4l2_info(sd, "%s decoder driver registered !!\n", sd->name); +done: + if (ret < 0) { + v4l2_ctrl_handler_free(&decoder->hdl); +#if defined(CONFIG_MEDIA_CONTROLLER) + media_entity_cleanup(&decoder->sd.entity); +#endif + } + return ret; } /** @@ -1162,6 +1170,7 @@ static int tvp514x_remove(struct i2c_client *client) struct v4l2_subdev *sd = i2c_get_clientdata(client); struct tvp514x_decoder *decoder = to_decoder(sd); + v4l2_async_unregister_subdev(&decoder->sd); v4l2_device_unregister_subdev(sd); #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&decoder->sd.entity);