| Message ID | 1373995163-9412-1-git-send-email-prabhakar.csengg@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Prabhakar, On 07/16/2013 07:19 PM, Prabhakar Lad wrote: > From: "Lad, Prabhakar"<prabhakar.csengg@gmail.com> > > This patch adds 'sync-on-green-active' property as part > of endpoint property. > > Signed-off-by: Lad, Prabhakar<prabhakar.csengg@gmail.com> > --- > Changes for v4: > 1: Fixed review comments pointed by Sylwester. > > Changes for v3: > 1: Fixed review comments pointed by Laurent and Sylwester. > > RFC v2 https://patchwork.kernel.org/patch/2578091/ > > RFC V1 https://patchwork.kernel.org/patch/2572341/ > > .../devicetree/bindings/media/video-interfaces.txt | 3 +++ > drivers/media/v4l2-core/v4l2-of.c | 4 ++++ > include/media/v4l2-mediabus.h | 2 ++ > 3 files changed, 9 insertions(+) > > diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt > index e022d2d..5186c7e 100644 > --- a/Documentation/devicetree/bindings/media/video-interfaces.txt > +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt > @@ -101,6 +101,9 @@ Optional endpoint properties > array contains only one entry. > - clock-noncontinuous: a boolean property to allow MIPI CSI-2 non-continuous > clock mode. > +- sync-on-green-active: polarity field when video synchronization is > + Sync-On-Green. When set the driver determines whether it's a normal operation > + or inverted operation. Would you mind adding this entry after pclk-sample property description ? And how about describing it a bit more precisely and similarly to VSYNC/HSYNC, e.g. - sync-on-green-active: active state of Sync-on-green (SoG) signal, 0/1 for LOW/HIGH respectively. Otherwise looks good. > Example > diff --git a/drivers/media/v4l2-core/v4l2-of.c b/drivers/media/v4l2-core/v4l2-of.c > index aa59639..5c4c9f0 100644 > --- a/drivers/media/v4l2-core/v4l2-of.c > +++ b/drivers/media/v4l2-core/v4l2-of.c > @@ -100,6 +100,10 @@ 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, "sync-on-green-active",&v)) > + flags |= v ? V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH : > + V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW; > + > bus->flags = flags; > > } > diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h > index 83ae07e..d47eb81 100644 > --- a/include/media/v4l2-mediabus.h > +++ b/include/media/v4l2-mediabus.h > @@ -40,6 +40,8 @@ > #define V4L2_MBUS_FIELD_EVEN_HIGH (1<< 10) > /* FIELD = 1/0 - Field1 (odd)/Field2 (even) */ > #define V4L2_MBUS_FIELD_EVEN_LOW (1<< 11) > +#define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH (1<< 12) > +#define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW (1<< 13) > > /* Serial flags */ > /* How many lanes the client can use */ Thanks, Sylwester
Hi Sylwester, Thanks for the review. On Wed, Jul 17, 2013 at 2:08 AM, Sylwester Nawrocki <sylvester.nawrocki@gmail.com> wrote: > Hi Prabhakar, > > [snip] >> diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt >> b/Documentation/devicetree/bindings/media/video-interfaces.txt >> index e022d2d..5186c7e 100644 >> --- a/Documentation/devicetree/bindings/media/video-interfaces.txt >> +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt >> @@ -101,6 +101,9 @@ Optional endpoint properties >> array contains only one entry. >> - clock-noncontinuous: a boolean property to allow MIPI CSI-2 >> non-continuous >> clock mode. >> +- sync-on-green-active: polarity field when video synchronization is >> + Sync-On-Green. When set the driver determines whether it's a normal >> operation >> + or inverted operation. > > > Would you mind adding this entry after pclk-sample property description ? OK. > And how about describing it a bit more precisely and similarly to > VSYNC/HSYNC, > e.g. > > - sync-on-green-active: active state of Sync-on-green (SoG) signal, > 0/1 for LOW/HIGH respectively. > OK I'll paste the above one itself :-) -- Regards, Prabhakar Lad
diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt index e022d2d..5186c7e 100644 --- a/Documentation/devicetree/bindings/media/video-interfaces.txt +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt @@ -101,6 +101,9 @@ Optional endpoint properties array contains only one entry. - clock-noncontinuous: a boolean property to allow MIPI CSI-2 non-continuous clock mode. +- sync-on-green-active: polarity field when video synchronization is + Sync-On-Green. When set the driver determines whether it's a normal operation + or inverted operation. Example diff --git a/drivers/media/v4l2-core/v4l2-of.c b/drivers/media/v4l2-core/v4l2-of.c index aa59639..5c4c9f0 100644 --- a/drivers/media/v4l2-core/v4l2-of.c +++ b/drivers/media/v4l2-core/v4l2-of.c @@ -100,6 +100,10 @@ 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, "sync-on-green-active", &v)) + flags |= v ? V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH : + V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW; + bus->flags = flags; } diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h index 83ae07e..d47eb81 100644 --- a/include/media/v4l2-mediabus.h +++ b/include/media/v4l2-mediabus.h @@ -40,6 +40,8 @@ #define V4L2_MBUS_FIELD_EVEN_HIGH (1 << 10) /* FIELD = 1/0 - Field1 (odd)/Field2 (even) */ #define V4L2_MBUS_FIELD_EVEN_LOW (1 << 11) +#define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH (1 << 12) +#define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW (1 << 13) /* Serial flags */ /* How many lanes the client can use */