From: "Lad, Prabhakar" <prabhakar.csengg@xxxxxxxxx> This patch adds video sync properties as part of endpoint properties and also support to parse them in the parser. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> Cc: Hans Verkuil <hans.verkuil@xxxxxxxxx> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> Cc: Guennadi Liakhovetski <g.liakhovetski@xxxxxx> Cc: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> Cc: Sakari Ailus <sakari.ailus@xxxxxx> Cc: Grant Likely <grant.likely@xxxxxxxxxxxx> Cc: Rob Herring <rob.herring@xxxxxxxxxxx> Cc: Rob Landley <rob@xxxxxxxxxxx> Cc: devicetree-discuss@xxxxxxxxxxxxxxxx Cc: linux-doc@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: davinci-linux-open-source@xxxxxxxxxxxxxxxxxxxx Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> --- This patch has 10 warnings for line over 80 characters for which I think can be ignored. RFC v2 https://patchwork.kernel.org/patch/2578091/ RFC V1 https://patchwork.kernel.org/patch/2572341/ Changes for v3: 1: Fixed review comments pointed by Laurent and Sylwester. .../devicetree/bindings/media/video-interfaces.txt | 1 + drivers/media/v4l2-core/v4l2-of.c | 20 ++++++++++++++++++ include/dt-bindings/media/video-interfaces.h | 17 +++++++++++++++ include/media/v4l2-mediabus.h | 22 +++++++++++--------- 4 files changed, 50 insertions(+), 10 deletions(-) create mode 100644 include/dt-bindings/media/video-interfaces.h diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt index e022d2d..2081278 100644 --- a/Documentation/devicetree/bindings/media/video-interfaces.txt +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt @@ -101,6 +101,7 @@ Optional endpoint properties array contains only one entry. - clock-noncontinuous: a boolean property to allow MIPI CSI-2 non-continuous clock mode. +- video-sync: property indicating to sync the video on a signal in RGB. Example diff --git a/drivers/media/v4l2-core/v4l2-of.c b/drivers/media/v4l2-core/v4l2-of.c index aa59639..1a54530 100644 --- a/drivers/media/v4l2-core/v4l2-of.c +++ b/drivers/media/v4l2-core/v4l2-of.c @@ -100,6 +100,26 @@ static void v4l2_of_parse_parallel_bus(const struct device_node *node, if (!of_property_read_u32(node, "data-shift", &v)) bus->data_shift = v; + if (!of_property_read_u32(node, "video-sync", &v)) { + switch (v) { + case V4L2_MBUS_VIDEO_SEPARATE_SYNC: + flags |= V4L2_MBUS_VIDEO_SEPARATE_SYNC; + break; + case V4L2_MBUS_VIDEO_COMPOSITE_SYNC: + flags |= V4L2_MBUS_VIDEO_COMPOSITE_SYNC; + break; + case V4L2_MBUS_VIDEO_SYNC_ON_COMPOSITE: + flags |= V4L2_MBUS_VIDEO_SYNC_ON_COMPOSITE; + break; + case V4L2_MBUS_VIDEO_SYNC_ON_GREEN: + flags |= V4L2_MBUS_VIDEO_SYNC_ON_GREEN; + break; + case V4L2_MBUS_VIDEO_SYNC_ON_LUMINANCE: + flags |= V4L2_MBUS_VIDEO_SYNC_ON_LUMINANCE; + break; + } + } + bus->flags = flags; } diff --git a/include/dt-bindings/media/video-interfaces.h b/include/dt-bindings/media/video-interfaces.h new file mode 100644 index 0000000..1a083dd --- /dev/null +++ b/include/dt-bindings/media/video-interfaces.h @@ -0,0 +1,17 @@ +/* + * This header provides constants for video interface. + * + */ + +#ifndef _DT_BINDINGS_VIDEO_INTERFACES_H +#define _DT_BINDINGS_VIDEO_INTERFACES_H + +#define V4L2_MBUS_VIDEO_SEPARATE_SYNC (1 << 2) +#define V4L2_MBUS_VIDEO_COMPOSITE_SYNC (1 << 3) +#define V4L2_MBUS_VIDEO_SYNC_ON_COMPOSITE (1 << 4) +#define V4L2_MBUS_VIDEO_SYNC_ON_GREEN (1 << 5) +#define V4L2_MBUS_VIDEO_SYNC_ON_LUMINANCE (1 << 6) + +#define V4L2_MBUS_VIDEO_INTERFACES_END 6 + +#endif diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h index 83ae07e..a4676dd 100644 --- a/include/media/v4l2-mediabus.h +++ b/include/media/v4l2-mediabus.h @@ -11,6 +11,8 @@ #ifndef V4L2_MEDIABUS_H #define V4L2_MEDIABUS_H +#include <dt-bindings/media/video-interfaces.h> + #include <linux/v4l2-mediabus.h> /* Parallel flags */ @@ -28,18 +30,18 @@ * V4L2_MBUS_[HV]SYNC* flags should be also used for specifying * configuration of hardware that uses [HV]REF signals */ -#define V4L2_MBUS_HSYNC_ACTIVE_HIGH (1 << 2) -#define V4L2_MBUS_HSYNC_ACTIVE_LOW (1 << 3) -#define V4L2_MBUS_VSYNC_ACTIVE_HIGH (1 << 4) -#define V4L2_MBUS_VSYNC_ACTIVE_LOW (1 << 5) -#define V4L2_MBUS_PCLK_SAMPLE_RISING (1 << 6) -#define V4L2_MBUS_PCLK_SAMPLE_FALLING (1 << 7) -#define V4L2_MBUS_DATA_ACTIVE_HIGH (1 << 8) -#define V4L2_MBUS_DATA_ACTIVE_LOW (1 << 9) +#define V4L2_MBUS_HSYNC_ACTIVE_HIGH (1 << (V4L2_MBUS_VIDEO_INTERFACES_END + 1)) +#define V4L2_MBUS_HSYNC_ACTIVE_LOW (1 << (V4L2_MBUS_VIDEO_INTERFACES_END + 2)) +#define V4L2_MBUS_VSYNC_ACTIVE_HIGH (1 << (V4L2_MBUS_VIDEO_INTERFACES_END + 3)) +#define V4L2_MBUS_VSYNC_ACTIVE_LOW (1 << (V4L2_MBUS_VIDEO_INTERFACES_END + 4)) +#define V4L2_MBUS_PCLK_SAMPLE_RISING (1 << (V4L2_MBUS_VIDEO_INTERFACES_END + 5)) +#define V4L2_MBUS_PCLK_SAMPLE_FALLING (1 << (V4L2_MBUS_VIDEO_INTERFACES_END + 6)) +#define V4L2_MBUS_DATA_ACTIVE_HIGH (1 << (V4L2_MBUS_VIDEO_INTERFACES_END + 7)) +#define V4L2_MBUS_DATA_ACTIVE_LOW (1 << (V4L2_MBUS_VIDEO_INTERFACES_END + 8)) /* FIELD = 0/1 - Field1 (odd)/Field2 (even) */ -#define V4L2_MBUS_FIELD_EVEN_HIGH (1 << 10) +#define V4L2_MBUS_FIELD_EVEN_HIGH (1 << (V4L2_MBUS_VIDEO_INTERFACES_END + 9)) /* FIELD = 1/0 - Field1 (odd)/Field2 (even) */ -#define V4L2_MBUS_FIELD_EVEN_LOW (1 << 11) +#define V4L2_MBUS_FIELD_EVEN_LOW (1 << (V4L2_MBUS_VIDEO_INTERFACES_END + 10)) /* Serial flags */ /* How many lanes the client can use */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
