RE: [EXT] Re: [PATCH v10 03/13] media: amphion: add amphion vpu device driver

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> -----Original Message-----
> From: Randy Dunlap [mailto:rdunlap@xxxxxxxxxxxxx]
> Sent: Thursday, October 14, 2021 6:17 AM
> To: Ming Qian <ming.qian@xxxxxxx>; mchehab@xxxxxxxxxx;
> shawnguo@xxxxxxxxxx; robh+dt@xxxxxxxxxx; s.hauer@xxxxxxxxxxxxxx
> Cc: hverkuil-cisco@xxxxxxxxx; kernel@xxxxxxxxxxxxxx; festevam@xxxxxxxxx;
> dl-linux-imx <linux-imx@xxxxxxx>; Aisheng Dong <aisheng.dong@xxxxxxx>;
> linux-media@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Subject: [EXT] Re: [PATCH v10 03/13] media: amphion: add amphion vpu
> device driver
> 
> Caution: EXT Email
> 
> On 10/13/21 1:27 AM, Ming Qian wrote:
> > diff --git a/drivers/media/platform/Kconfig
> > b/drivers/media/platform/Kconfig index d9f90084c2f6..2465a5f7a073
> > 100644
> > --- a/drivers/media/platform/Kconfig
> > +++ b/drivers/media/platform/Kconfig
> > @@ -200,6 +200,25 @@ config VIDEO_TI_CAL_MC
> >
> >   endif # VIDEO_TI_CAL
> >
> > +config VIDEO_AMPHION_VPU
> > +     tristate "Amphion VPU(Video Processing Unit) Codec IP"
> > +     depends on ARCH_MXC
> > +     depends on MEDIA_SUPPORT
> > +     depends on VIDEO_DEV
> > +     depends on VIDEO_V4L2
> > +     select V4L2_MEM2MEM_DEV
> > +     select VIDEOBUF2_DMA_CONTIG
> > +     select VIDEOBUF2_VMALLOC
> > +     default y
> 
> This should not be "default y" unless it is needed to boot up some
> platform/machine. And even then it should depend on that platform/machine
> if possible.

I'll remove the " default y " and submit again

> 
> And there are 2 other drivers in that same Kconfig file that have the same
> problem.
> 
> > +     help
> > +       Amphion VPU Codec IP contains two parts: Windsor and Malone.
> > +       Windsor is encoder that supports H.264, and Malone is decoder
> > +       that supports H.264, HEVC, and other video formats.
> > +       This is a V4L2 driver for NXP MXC 8Q video accelerator hardware.
> > +       It accelerates encoding and decoding operations on
> > +       various NXP SoCs.
> > +       To compile this driver as a module choose m here.
> 
> 
> --
> ~Randy




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