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Date: Fri, 31 Jul 2020 02:02:41 -0700
From: Sowjanya Komatineni <skomatineni@...dia.com>
To: <skomatineni@...dia.com>, <thierry.reding@...il.com>,
<jonathanh@...dia.com>, <frankc@...dia.com>, <hverkuil@...all.nl>,
<sakari.ailus@....fi>, <robh+dt@...nel.org>,
<helen.koike@...labora.com>
CC: <digetx@...il.com>, <sboyd@...nel.org>,
<gregkh@...uxfoundation.org>, <linux-media@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-i2c@...r.kernel.org>
Subject: [RFC PATCH v6 02/10] media: tegra-video: Enable TPG based on kernel config
Tegra internal TPG mode is only for Tegra vi and csi testing
without a real sensor and driver should default support real
sensor.
So, This patch adds CONFIG_VIDEO_TEGRA_TPG and enables Tegra
internal TPG mode only when this config is selected.
Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
---
drivers/staging/media/tegra-video/Kconfig | 6 +++++
drivers/staging/media/tegra-video/csi.c | 38 +++++++++++++++++++++++-----
drivers/staging/media/tegra-video/tegra210.c | 6 +++++
drivers/staging/media/tegra-video/vi.c | 13 +++++++---
drivers/staging/media/tegra-video/video.c | 23 +++++++++--------
5 files changed, 65 insertions(+), 21 deletions(-)
diff --git a/drivers/staging/media/tegra-video/Kconfig b/drivers/staging/media/tegra-video/Kconfig
index f6c61ec..566da62 100644
--- a/drivers/staging/media/tegra-video/Kconfig
+++ b/drivers/staging/media/tegra-video/Kconfig
@@ -10,3 +10,9 @@ config VIDEO_TEGRA
To compile this driver as a module, choose M here: the module
will be called tegra-video.
+
+config VIDEO_TEGRA_TPG
+ bool "NVIDIA Tegra VI driver TPG mode"
+ depends on VIDEO_TEGRA
+ help
+ Say yes here to enable Tegra internal TPG mode
diff --git a/drivers/staging/media/tegra-video/csi.c b/drivers/staging/media/tegra-video/csi.c
index 40ea195..fb667df 100644
--- a/drivers/staging/media/tegra-video/csi.c
+++ b/drivers/staging/media/tegra-video/csi.c
@@ -62,6 +62,9 @@ static int csi_enum_bus_code(struct v4l2_subdev *subdev,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
+ if (!IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
+ return -ENOIOCTLCMD;
+
if (code->index >= ARRAY_SIZE(tegra_csi_tpg_fmts))
return -EINVAL;
@@ -76,6 +79,9 @@ static int csi_get_format(struct v4l2_subdev *subdev,
{
struct tegra_csi_channel *csi_chan = to_csi_chan(subdev);
+ if (!IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
+ return -ENOIOCTLCMD;
+
fmt->format = csi_chan->format;
return 0;
@@ -121,6 +127,9 @@ static int csi_enum_framesizes(struct v4l2_subdev *subdev,
{
unsigned int i;
+ if (!IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
+ return -ENOIOCTLCMD;
+
if (fse->index >= ARRAY_SIZE(tegra_csi_tpg_sizes))
return -EINVAL;
@@ -148,6 +157,9 @@ static int csi_enum_frameintervals(struct v4l2_subdev *subdev,
const struct tpg_framerate *frmrate = csi->soc->tpg_frmrate_table;
int index;
+ if (!IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
+ return -ENOIOCTLCMD;
+
/* one framerate per format and resolution */
if (fie->index > 0)
return -EINVAL;
@@ -172,6 +184,9 @@ static int csi_set_format(struct v4l2_subdev *subdev,
const struct v4l2_frmsize_discrete *sizes;
unsigned int i;
+ if (!IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
+ return -ENOIOCTLCMD;
+
sizes = v4l2_find_nearest_size(tegra_csi_tpg_sizes,
ARRAY_SIZE(tegra_csi_tpg_sizes),
width, height,
@@ -208,6 +223,9 @@ static int tegra_csi_g_frame_interval(struct v4l2_subdev *subdev,
{
struct tegra_csi_channel *csi_chan = to_csi_chan(subdev);
+ if (!IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
+ return -ENOIOCTLCMD;
+
vfi->interval.numerator = 1;
vfi->interval.denominator = csi_chan->framerate;
@@ -311,8 +329,12 @@ static int tegra_csi_channel_init(struct tegra_csi_channel *chan)
subdev = &chan->subdev;
v4l2_subdev_init(subdev, &tegra_csi_ops);
subdev->dev = csi->dev;
- snprintf(subdev->name, V4L2_SUBDEV_NAME_SIZE, "%s-%d", "tpg",
- chan->csi_port_num);
+ if (IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
+ snprintf(subdev->name, V4L2_SUBDEV_NAME_SIZE, "%s-%d", "tpg",
+ chan->csi_port_num);
+ else
+ snprintf(subdev->name, V4L2_SUBDEV_NAME_SIZE, "%s",
+ kbasename(chan->of_node->full_name));
v4l2_set_subdevdata(subdev, chan);
subdev->fwnode = of_fwnode_handle(chan->of_node);
@@ -405,11 +427,13 @@ static int tegra_csi_init(struct host1x_client *client)
INIT_LIST_HEAD(&csi->csi_chans);
- ret = tegra_csi_tpg_channels_alloc(csi);
- if (ret < 0) {
- dev_err(csi->dev,
- "failed to allocate tpg channels: %d\n", ret);
- goto cleanup;
+ if (IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG)) {
+ ret = tegra_csi_tpg_channels_alloc(csi);
+ if (ret < 0) {
+ dev_err(csi->dev,
+ "failed to allocate tpg channels: %d\n", ret);
+ goto cleanup;
+ }
}
ret = tegra_csi_channels_init(csi);
diff --git a/drivers/staging/media/tegra-video/tegra210.c b/drivers/staging/media/tegra-video/tegra210.c
index 3baa4e3..3492a8a 100644
--- a/drivers/staging/media/tegra-video/tegra210.c
+++ b/drivers/staging/media/tegra-video/tegra210.c
@@ -631,7 +631,11 @@ const struct tegra_vi_soc tegra210_vi_soc = {
.ops = &tegra210_vi_ops,
.hw_revision = 3,
.vi_max_channels = 6,
+#if IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG)
.vi_max_clk_hz = 499200000,
+#else
+ .vi_max_clk_hz = 998400000,
+#endif
};
/* Tegra210 CSI PHY registers accessors */
@@ -957,7 +961,9 @@ static const char * const tegra210_csi_cil_clks[] = {
"cilab",
"cilcd",
"cile",
+#if IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG)
"csi_tpg",
+#endif
};
/* Tegra210 CSI operations */
diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index d621ebc..0197f4e 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c
@@ -565,6 +565,7 @@ static int tegra_channel_setup_ctrl_handler(struct tegra_vi_channel *chan)
{
int ret;
+#if IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG)
/* add test pattern control handler to v4l2 device */
v4l2_ctrl_new_std_menu_items(&chan->ctrl_handler, &vi_ctrl_ops,
V4L2_CID_TEST_PATTERN,
@@ -576,6 +577,7 @@ static int tegra_channel_setup_ctrl_handler(struct tegra_vi_channel *chan)
v4l2_ctrl_handler_free(&chan->ctrl_handler);
return chan->ctrl_handler.error;
}
+#endif
/* setup the controls */
ret = v4l2_ctrl_handler_setup(&chan->ctrl_handler);
@@ -918,10 +920,13 @@ static int tegra_vi_init(struct host1x_client *client)
INIT_LIST_HEAD(&vi->vi_chans);
- ret = tegra_vi_tpg_channels_alloc(vi);
- if (ret < 0) {
- dev_err(vi->dev, "failed to allocate tpg channels: %d\n", ret);
- goto free_chans;
+ if (IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG)) {
+ ret = tegra_vi_tpg_channels_alloc(vi);
+ if (ret < 0) {
+ dev_err(vi->dev,
+ "failed to allocate tpg channels: %d\n", ret);
+ goto free_chans;
+ }
}
ret = tegra_vi_channels_init(vi);
diff --git a/drivers/staging/media/tegra-video/video.c b/drivers/staging/media/tegra-video/video.c
index 30816aa..e50bd70 100644
--- a/drivers/staging/media/tegra-video/video.c
+++ b/drivers/staging/media/tegra-video/video.c
@@ -60,15 +60,17 @@ static int host1x_video_probe(struct host1x_device *dev)
if (ret < 0)
goto unregister_v4l2;
- /*
- * Both vi and csi channels are available now.
- * Register v4l2 nodes and create media links for TPG.
- */
- ret = tegra_v4l2_nodes_setup_tpg(vid);
- if (ret < 0) {
- dev_err(&dev->dev,
- "failed to setup tpg graph: %d\n", ret);
- goto device_exit;
+ if (IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG)) {
+ /*
+ * Both vi and csi channels are available now.
+ * Register v4l2 nodes and create media links for TPG.
+ */
+ ret = tegra_v4l2_nodes_setup_tpg(vid);
+ if (ret < 0) {
+ dev_err(&dev->dev,
+ "failed to setup tpg graph: %d\n", ret);
+ goto device_exit;
+ }
}
return 0;
@@ -91,7 +93,8 @@ static int host1x_video_remove(struct host1x_device *dev)
{
struct tegra_video_device *vid = dev_get_drvdata(&dev->dev);
- tegra_v4l2_nodes_cleanup_tpg(vid);
+ if (IS_ENABLED(CONFIG_VIDEO_TEGRA_TPG))
+ tegra_v4l2_nodes_cleanup_tpg(vid);
host1x_device_exit(dev);
--
2.7.4
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