From patchwork Thu Sep 17 17:42:23 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: 67082 X-Patchwork-Delegate: sakari.ailus@iki.fi Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1kIxua-00DUxn-4i; Thu, 17 Sep 2020 17:41:36 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726645AbgIQRqY (ORCPT + 1 other); Thu, 17 Sep 2020 13:46:24 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:8507 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726422AbgIQRnX (ORCPT ); Thu, 17 Sep 2020 13:43:23 -0400 X-IronPort-AV: E=Sophos;i="5.77,271,1596466800"; d="scan'208";a="57335097" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 18 Sep 2020 02:42:35 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id B78EE40BC9FB; Fri, 18 Sep 2020 02:42:33 +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 2/3] media: i2c: ov772x: Add support for BT.656 mode Date: Thu, 17 Sep 2020 18:42:23 +0100 Message-Id: <20200917174224.11430-3-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 X-LSpam-Score: -2.4 (--) X-LSpam-Report: No, score=-2.4 required=5.0 tests=BAYES_00=-1.9,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no Add support to read the bus-type for V4L2_MBUS_BT656 and enable BT.656 mode in the sensor if needed. For backward compatibility with older DTS where the bus-type property was not mandatory, assume V4L2_MBUS_PARALLEL as it was the only supported bus at the time. v4l2_fwnode_endpoint_alloc_parse() will not fail if 'bus-type' is not specified. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das Reviewed-by: Jacopo Mondi --- drivers/media/i2c/ov772x.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c index f61a3f09ad64..fe48b5881ad9 100644 --- a/drivers/media/i2c/ov772x.c +++ b/drivers/media/i2c/ov772x.c @@ -583,6 +583,13 @@ static int ov772x_s_stream(struct v4l2_subdev *sd, int enable) if (priv->streaming == enable) goto done; + if (priv->bus_type == V4L2_MBUS_BT656) { + ret = regmap_update_bits(priv->regmap, COM7, ITU656_ON_OFF, + enable ? ITU656_ON_OFF : ~ITU656_ON_OFF); + if (ret) + goto done; + } + ret = regmap_update_bits(priv->regmap, COM2, SOFT_SLEEP_MODE, enable ? 0 : SOFT_SLEEP_MODE); if (ret) @@ -1364,10 +1371,22 @@ static int ov772x_parse_dt(struct i2c_client *client, return -EINVAL; } + /* + * For backward compatibility with older DTS where the + * bus-type property was not mandatory, assume + * V4L2_MBUS_PARALLEL as it was the only supported bus at the + * time. v4l2_fwnode_endpoint_alloc_parse() will not fail if + * 'bus-type' is not specified. + */ bus_cfg.bus_type = V4L2_MBUS_PARALLEL; ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); - if (ret) - goto error_fwnode_put; + if (ret) { + bus_cfg = (struct v4l2_fwnode_endpoint) + { .bus_type = V4L2_MBUS_BT656 }; + 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);