From patchwork Thu Sep 17 17:42:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar Mahadev Lad X-Patchwork-Id: 255752 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 50B44C433E2 for ; Thu, 17 Sep 2020 17:50:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F1EFD206B7 for ; Thu, 17 Sep 2020 17:50:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726444AbgIQRu2 (ORCPT ); Thu, 17 Sep 2020 13:50:28 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:34197 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726547AbgIQRnQ (ORCPT ); Thu, 17 Sep 2020 13:43:16 -0400 X-IronPort-AV: E=Sophos;i="5.77,271,1596466800"; d="scan'208";a="57335094" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 18 Sep 2020 02:42:33 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 2240B40BC9F5; Fri, 18 Sep 2020 02:42:30 +0900 (JST) From: Lad Prabhakar To: Jacopo Mondi , Sakari Ailus , Hans Verkuil , Laurent Pinchart , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Lad Prabhakar , Biju Das , "Lad, Prabhakar" Subject: [PATCH v6 1/3] media: i2c: ov772x: Parse endpoint properties Date: Thu, 17 Sep 2020 18:42:22 +0100 Message-Id: <20200917174224.11430-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200917174224.11430-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20200917174224.11430-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Parse endpoint properties using v4l2_fwnode_endpoint_alloc_parse() to determine the bus type and store it in the driver structure. Set bus_type to V4L2_MBUS_PARALLEL as it's the only supported one Signed-off-by: Lad Prabhakar Reviewed-by: Jacopo Mondi --- drivers/media/i2c/ov772x.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c index 2cc6a678069a..f61a3f09ad64 100644 --- a/drivers/media/i2c/ov772x.c +++ b/drivers/media/i2c/ov772x.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include @@ -434,6 +435,7 @@ struct ov772x_priv { #ifdef CONFIG_MEDIA_CONTROLLER struct media_pad pad; #endif + enum v4l2_mbus_type bus_type; }; /* @@ -1348,6 +1350,34 @@ static const struct v4l2_subdev_ops ov772x_subdev_ops = { .pad = &ov772x_subdev_pad_ops, }; +static int ov772x_parse_dt(struct i2c_client *client, + struct ov772x_priv *priv) +{ + struct v4l2_fwnode_endpoint bus_cfg; + struct fwnode_handle *ep; + int ret; + + ep = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev), + NULL); + if (!ep) { + dev_err(&client->dev, "Endpoint node not found\n"); + return -EINVAL; + } + + bus_cfg.bus_type = V4L2_MBUS_PARALLEL; + ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); + if (ret) + goto error_fwnode_put; + + priv->bus_type = bus_cfg.bus_type; + v4l2_fwnode_endpoint_free(&bus_cfg); + +error_fwnode_put: + fwnode_handle_put(ep); + + return ret; +} + /* * i2c_driver function */ @@ -1415,6 +1445,10 @@ static int ov772x_probe(struct i2c_client *client) goto error_clk_put; } + ret = ov772x_parse_dt(client, priv); + if (ret) + goto error_clk_put; + ret = ov772x_video_probe(priv); if (ret < 0) goto error_gpio_put;