Hi Bingbu, On Tue, Oct 08, 2019 at 12:21:27PM +0800, bingbu.cao@xxxxxxxxx wrote: > From: Bingbu Cao <bingbu.cao@xxxxxxxxx> > > This patch add more details for the resolution change blocks > It can help the developer to understand the main resolution > change blocks in ImgU. > > Signed-off-by: Bingbu Cao <bingbu.cao@xxxxxxxxx> Applied with the following diff --- some lines were over 80 for no apparent reason, plus a few spelling fixes: diff --git a/Documentation/media/v4l-drivers/ipu3.rst b/Documentation/media/v4l-drivers/ipu3.rst index 235e10b37c2c..e4904ab44e60 100644 --- a/Documentation/media/v4l-drivers/ipu3.rst +++ b/Documentation/media/v4l-drivers/ipu3.rst @@ -295,12 +295,13 @@ configuration steps of 0.03125 (1/32). Geometric Distortion Correction is used to performe correction of distortions and image filtering. It needs some extra filter and envelop padding pixels to -work, so the input resolution of GDC should be larger than the output resolution. +work, so the input resolution of GDC should be larger than the output +resolution. **YUV Scaler** -YUV Scaler which similiar with BDS, but it is mainly do image down scaling -in YUV domain, it can support up to 1/12X down scaling, but it can not be applied +YUV Scaler which similar with BDS, but it is mainly do image down scaling in +YUV domain, it can support up to 1/12X down scaling, but it can not be applied to the main output. The ImgU V4L2 subdev has to be configured with the supported resolutions in all @@ -310,7 +311,7 @@ Down Scaler and GDC blocks should be configured with the supported resolutions as each hardware block has its own alignment requirement. You must configure the output resolution of the hardware blocks smartly to meet -the hardware requirment along with keeping the maximum field of view. +the hardware requirement along with keeping the maximum field of view. The intermediate resolutions can be generated by specific tool and this information can be obtained by looking at the following IPU3 ImgU configuration table. -- Sakari Ailus
