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From: Sowjanya Komatineni <skomatineni@nvidia.com>
To: <skomatineni@nvidia.com>, <thierry.reding@gmail.com>,
	<jonathanh@nvidia.com>, <hverkuil@xs4all.nl>,
	<sakari.ailus@iki.fi>, <robh+dt@kernel.org>
Cc: <mchehab@kernel.org>, <linux-media@vger.kernel.org>,
	<linux-tegra@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Subject: [PATCH v4 06/13] media: tegra-video: Add support for EDID ioctl ops
Date: Fri, 11 Dec 2020 09:02:35 -0800	[thread overview]
Message-ID: <1607706162-1548-7-git-send-email-skomatineni@nvidia.com> (raw)
In-Reply-To: <1607706162-1548-1-git-send-email-skomatineni@nvidia.com>

This patch adds support for EDID get and set v4l2 ioctl ops to use
with HDMI to CSI bridges.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
---
 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,
-- 
2.7.4


  parent reply	other threads:[~2020-12-11 18:31 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-11 17:02 [PATCH v4 00/13] tegra-video: Add support for capturing from HDMI-to-CSI bridge Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 01/13] media: tegra-video: Use zero crop settings if subdev has no get_selection Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 02/13] media: tegra-video: Enable VI pixel transform for YUV and RGB formats Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 03/13] media: tegra-video: Fix V4L2 pixel format RGB and YUV Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 04/13] media: tegra-video: Add support for V4L2_PIX_FMT_NV16 Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 05/13] media: tegra-video: Add DV timing support Sowjanya Komatineni
2020-12-11 17:02 ` Sowjanya Komatineni [this message]
2020-12-11 17:02 ` [PATCH v4 07/13] media: tegra-video: Add support for VIDIOC_LOG_STATUS ioctl Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 08/13] media: tegra-video: Add support for V4L2_EVENT_SOURCE_CHANGE Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 09/13] media: tegra-video: Implement V4L2 device notify callback Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 10/13] media: v4l2-fwnode: Update V4L2_FWNODE_CSI2_MAX_DATA_LANES to 8 Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 11/13] dt-bindings: tegra: Update csi data-lanes to maximum 8 lanes Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 12/13] media: tegra-video: Add support for x8 captures with gang ports Sowjanya Komatineni
2020-12-11 17:02 ` [PATCH v4 13/13] media: tegra-video: Add custom V4L2 control V4L2_CID_TEGRA_SYNCPT_TIMEOUT_RETRY Sowjanya Komatineni

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