Hi Mauro, On Monday 19 Sep 2016 15:26:15 Mauro Carvalho Chehab wrote: > Em Mon, 19 Sep 2016 20:59:56 +0300 Laurent Pinchart escreveu: > > On Monday 19 Sep 2016 14:55:43 Mauro Carvalho Chehab wrote: > >> Em Wed, 14 Sep 2016 02:16:59 +0300 Laurent Pinchart escreveu: > >>> Cropping on the WPF sink pad restricts the left and top coordinates to > >>> 0-255. The same result can be obtained by cropping on the RPF without > >>> any such restriction, this feature isn't useful. Disable it. > >>> > >>> Signed-off-by: Laurent Pinchart > >>> <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> > >>> --- > >>> > >>> drivers/media/platform/vsp1/vsp1_rwpf.c | 37 ++++++++++++------------ > >>> drivers/media/platform/vsp1/vsp1_wpf.c | 18 +++++++--------- > >>> 2 files changed, 26 insertions(+), 29 deletions(-) > >>> > >>> diff --git a/drivers/media/platform/vsp1/vsp1_rwpf.c > >>> b/drivers/media/platform/vsp1/vsp1_rwpf.c index > >>> 8cb87e96b78b..a3ace8df7f4d 100644 > >>> --- a/drivers/media/platform/vsp1/vsp1_rwpf.c > >>> +++ b/drivers/media/platform/vsp1/vsp1_rwpf.c [snip] > >>> @@ -129,8 +132,10 @@ static int vsp1_rwpf_get_selection(struct > >>> v4l2_subdev *subdev, > >>> struct v4l2_mbus_framefmt *format; > >>> int ret = 0; > >>> > >>> - /* Cropping is implemented on the sink pad. */ > >>> - if (sel->pad != RWPF_PAD_SINK) > >>> + /* Cropping is only supported on the RPF and is implemented on > >>> the sink > >>> + * pad. > >>> + */ > >> > >> Please read CodingStyle and run checkpatch before sending stuff > >> upstream. > >> > >> This violates the CodingStyle: it should be, instead: > >> /* > >> * foo > >> * bar > >> */ > > > > But it's consistent with the coding style of this driver. I'm OK fixing > > it, but it should be done globally in that case. > > There are inconsistencies inside the driver too on multi-line > comments even without fixing the ones introduced on this series, > as, on several places, multi-line comments are correct: > > drivers/media/platform/vsp1/vsp1_bru.c:/* > drivers/media/platform/vsp1/vsp1_bru.c- * The BRU can't perform format > conversion, all sink and source formats must be > drivers/media/platform/vsp1/vsp1_bru.c- * identical. We pick the format on > the first sink pad (pad 0) and propagate it > drivers/media/platform/vsp1/vsp1_bru.c- * to all other pads. > drivers/media/platform/vsp1/vsp1_bru.c- */ > > drivers/media/platform/vsp1/vsp1_dl.c:/* > drivers/media/platform/vsp1/vsp1_dl.c- * Initialize a display list body > object and allocate DMA memory for the body > drivers/media/platform/vsp1/vsp1_dl.c- * data. The display list body object > is expected to have been initialized to > drivers/media/platform/vsp1/vsp1_dl.c- * 0 when allocated. > drivers/media/platform/vsp1/vsp1_dl.c- */ > > ... > > I'll address the ones only the CodingStyle violation introduced by this > series. I'll leave for the vsp1 maintainers/developers. OK, I'll address that. > Btw, there are several kernel-doc tags that use just: > /* > ... > */ > > instead of: > > /** > ... > */ > > I suggest you to add the files/headers with kernel-doc markups on > a Documentation/media/v4l-drivers/vsp1.rst file, to be created. > > This way, you can validate that such documentation is correct, > and produce an auto-generated documentation for this driver. I've thought about it, but I don't think those comments should become part of the kernel documentation. They're really about driver internals, and meant for the driver developers. In particular only a subset of the driver is documented that way, when I've considered that the code or structures were complex enough to need proper documentation. A generated doc would then be quite incomplete and not very useful, the comments are meant to be read while working on the code. -- Regards, Laurent Pinchart
