From patchwork Thu Dec 3 18:59:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sowjanya Komatineni X-Patchwork-Id: 337293 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=-17.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED, 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 637A9C193FE for ; Thu, 3 Dec 2020 19:01:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1C1BB20C56 for ; Thu, 3 Dec 2020 19:01:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731742AbgLCTA4 (ORCPT ); Thu, 3 Dec 2020 14:00:56 -0500 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:5932 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731726AbgLCTAy (ORCPT ); Thu, 3 Dec 2020 14:00:54 -0500 Received: from hqmail.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, AES256-SHA) id ; Thu, 03 Dec 2020 11:00:13 -0800 Received: from HQMAIL109.nvidia.com (172.20.187.15) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 3 Dec 2020 19:00:08 +0000 Received: from skomatineni-linux.nvidia.com (172.20.13.39) by mail.nvidia.com (172.20.187.15) with Microsoft SMTP Server id 15.0.1473.3 via Frontend Transport; Thu, 3 Dec 2020 19:00:07 +0000 From: Sowjanya Komatineni To: , , , , , CC: , , , , , Subject: [PATCH v3 06/13] media: tegra-video: Add support for EDID ioctl ops Date: Thu, 3 Dec 2020 10:59:55 -0800 Message-ID: <1607022002-26575-7-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1607022002-26575-1-git-send-email-skomatineni@nvidia.com> References: <1607022002-26575-1-git-send-email-skomatineni@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1607022013; bh=pNpN3f/SRR0mn9c/AvbESRBJwpfQPmb/g2WTapIp4ew=; h=From:To:CC:Subject:Date:Message-ID:X-Mailer:In-Reply-To: References:X-NVConfidentiality:MIME-Version:Content-Type; b=XJPxc/Mc8fJ/Js9hhiJ0q7KzNyxWsVy0MV5I6YjPZZqTHIJ8QhOPP0lZ/BDzbXJ1K xL50hCVQpEhfMPEWgXzsJPRvMNuLzLaUU7qx4dM79K3Z99QurVSpGYNObSqUtOGbmc E1GVlFbYPQH1URJxiyoRBINZUoxVgOWV1NUeeSKxp0spbT/zZ3idF4xn+7bUgW45+P 5jvyICeqVZxZBk4U3UADzhCpPkS7rQrL6LcShmkMH8U+R73bLGY5g1dviTpmZ/Q7P/ 3/+JJLJCxXCPrbMDbhordmvS4st2/QtX6Ra2fNt9HLw5JghOa0hkYPrg3KMysTX+Qf hM1OKB3mhhfYw== Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This patch adds support for EDID get and set v4l2 ioctl ops to use with HDMI to CSI bridges. Signed-off-by: Sowjanya Komatineni --- drivers/staging/media/tegra-video/vi.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c index d01e88d..bc38136 100644 --- a/drivers/staging/media/tegra-video/vi.c +++ b/drivers/staging/media/tegra-video/vi.c @@ -721,6 +721,32 @@ static int tegra_channel_s_selection(struct file *file, void *fh, return ret; } +static int tegra_channel_g_edid(struct file *file, void *fh, + struct v4l2_edid *edid) +{ + struct tegra_vi_channel *chan = video_drvdata(file); + struct v4l2_subdev *subdev; + + subdev = tegra_channel_get_remote_source_subdev(chan); + if (!v4l2_subdev_has_op(subdev, pad, get_edid)) + return -ENOTTY; + + return v4l2_subdev_call(subdev, pad, get_edid, edid); +} + +static int tegra_channel_s_edid(struct file *file, void *fh, + struct v4l2_edid *edid) +{ + struct tegra_vi_channel *chan = video_drvdata(file); + struct v4l2_subdev *subdev; + + subdev = tegra_channel_get_remote_source_subdev(chan); + if (!v4l2_subdev_has_op(subdev, pad, set_edid)) + return -ENOTTY; + + return v4l2_subdev_call(subdev, pad, set_edid, edid); +} + static int tegra_channel_g_dv_timings(struct file *file, void *fh, struct v4l2_dv_timings *timings) { @@ -873,6 +899,8 @@ static const struct v4l2_ioctl_ops tegra_channel_ioctl_ops = { .vidioc_unsubscribe_event = v4l2_event_unsubscribe, .vidioc_g_selection = tegra_channel_g_selection, .vidioc_s_selection = tegra_channel_s_selection, + .vidioc_g_edid = tegra_channel_g_edid, + .vidioc_s_edid = tegra_channel_s_edid, .vidioc_g_dv_timings = tegra_channel_g_dv_timings, .vidioc_s_dv_timings = tegra_channel_s_dv_timings, .vidioc_query_dv_timings = tegra_channel_query_dv_timings,