From patchwork Fri Oct 2 22:23:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lad Prabhakar X-Patchwork-Id: 11814673 X-Patchwork-Delegate: kieran@bingham.xyz Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 35427618 for ; Fri, 2 Oct 2020 22:23:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2712820754 for ; Fri, 2 Oct 2020 22:23:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725791AbgJBWXj (ORCPT ); Fri, 2 Oct 2020 18:23:39 -0400 Received: from relmlor1.renesas.com ([210.160.252.171]:56531 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725782AbgJBWXi (ORCPT ); Fri, 2 Oct 2020 18:23:38 -0400 X-IronPort-AV: E=Sophos;i="5.77,329,1596466800"; d="scan'208";a="58790188" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 03 Oct 2020 07:23:37 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 8185A4007F4B; Sat, 3 Oct 2020 07:23:35 +0900 (JST) From: Lad Prabhakar To: Jacopo Mondi , Sakari Ailus , Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [PATCH v8 2/3] media: i2c: ov772x: Add support for BT.656 mode Date: Fri, 2 Oct 2020 23:23:22 +0100 Message-Id: <20201002222323.21736-3-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201002222323.21736-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20201002222323.21736-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org 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 | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c index afe2446dfb68..86e542b77ee5 100644 --- a/drivers/media/i2c/ov772x.c +++ b/drivers/media/i2c/ov772x.c @@ -583,6 +583,14 @@ 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) @@ -1365,9 +1373,21 @@ 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. + */ 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);