linux-kernel - RE: [EXT] Re: [PATCH v13 03/13] media: amphion: add amphion vpu device driver

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Date:   Thu, 2 Dec 2021 10:03:43 +0000
From:   Ming Qian <ming.qian@....com>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>
CC:     "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        Aisheng Dong <aisheng.dong@....com>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [EXT] Re: [PATCH v13 03/13] media: amphion: add amphion vpu
 device driver

> -----Original Message-----
> From: Hans Verkuil [mailto:hverkuil-cisco@...all.nl]
> Sent: Thursday, December 2, 2021 5:45 PM
> To: Ming Qian <ming.qian@....com>; mchehab@...nel.org;
> shawnguo@...nel.org; robh+dt@...nel.org; s.hauer@...gutronix.de
> Cc: kernel@...gutronix.de; festevam@...il.com; dl-linux-imx
> <linux-imx@....com>; Aisheng Dong <aisheng.dong@....com>;
> linux-media@...r.kernel.org; linux-kernel@...r.kernel.org;
> devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org
> Subject: [EXT] Re: [PATCH v13 03/13] media: amphion: add amphion vpu
> device driver
> 
> Caution: EXT Email
> 
> On 30/11/2021 10:48, Ming Qian wrote:
> > The amphion vpu codec ip contains encoder and decoder.
> > Windsor is the encoder, it supports to encode H.264.
> > Malone is the decoder, it features a powerful video processing unit
> > able to decode many foramts,
> 
> foramts -> formats
> 
> > such as H.264, HEVC, and other foramts.
> 
> ditto
> 

Got it, I'll fix it

> >
> > This Driver is for this IP that is based on the v4l2 mem2mem framework.
> >
> > Supported SoCs are: IMX8QXP, IMX8QM
> >
> > Signed-off-by: Ming Qian <ming.qian@....com>
> > Signed-off-by: Shijie Qin <shijie.qin@....com>
> > Signed-off-by: Zhou Peng <eagle.zhou@....com>
> > Reported-by: kernel test robot <lkp@...el.com>
> > ---
> >  arch/arm64/configs/defconfig               |   1 +
> >  drivers/media/platform/Kconfig             |  19 ++
> >  drivers/media/platform/Makefile            |   2 +
> >  drivers/media/platform/amphion/Makefile    |  20 ++
> >  drivers/media/platform/amphion/vpu.h       | 357
> +++++++++++++++++++++
> >  drivers/media/platform/amphion/vpu_defs.h  | 186 +++++++++++
> >  drivers/media/platform/amphion/vpu_drv.c   | 265 +++++++++++++++
> >  drivers/media/platform/amphion/vpu_imx8q.c | 271 ++++++++++++++++
> > drivers/media/platform/amphion/vpu_imx8q.h | 116 +++++++
> >  9 files changed, 1237 insertions(+)
> >  create mode 100644 drivers/media/platform/amphion/Makefile
> >  create mode 100644 drivers/media/platform/amphion/vpu.h
> >  create mode 100644 drivers/media/platform/amphion/vpu_defs.h
> >  create mode 100644 drivers/media/platform/amphion/vpu_drv.c
> >  create mode 100644 drivers/media/platform/amphion/vpu_imx8q.c
> >  create mode 100644 drivers/media/platform/amphion/vpu_imx8q.h
> >
> > diff --git a/arch/arm64/configs/defconfig
> > b/arch/arm64/configs/defconfig index f2e2b9bdd702..cc3633112f3f 100644
> > --- a/arch/arm64/configs/defconfig
> > +++ b/arch/arm64/configs/defconfig
> > @@ -657,6 +657,7 @@ CONFIG_V4L_PLATFORM_DRIVERS=y
> > CONFIG_VIDEO_RCAR_CSI2=m  CONFIG_VIDEO_RCAR_VIN=m
> > CONFIG_VIDEO_SUN6I_CSI=m
> > +CONFIG_VIDEO_AMPHION_VPU=m
> >  CONFIG_V4L_MEM2MEM_DRIVERS=y
> >  CONFIG_VIDEO_SAMSUNG_S5P_JPEG=m
> >  CONFIG_VIDEO_SAMSUNG_S5P_MFC=m
> > diff --git a/drivers/media/platform/Kconfig
> > b/drivers/media/platform/Kconfig index 9fbdba0fd1e7..7d4a8cd52a9e
> > 100644
> > --- a/drivers/media/platform/Kconfig
> > +++ b/drivers/media/platform/Kconfig
> > @@ -216,6 +216,25 @@ config VIDEO_RCAR_ISP
> >         To compile this driver as a module, choose M here: the
> >         module will be called rcar-isp.
> >
> > +config VIDEO_AMPHION_VPU
> > +     tristate "Amphion VPU(Video Processing Unit) Codec IP"
> 
> Add space before (
> 
> > +     depends on ARCH_MXC
> 
> Add: || COMPILE_TEST
> 
> It should always be possible to compile test drivers, even on other
> architectures.
> 
> > +     depends on MEDIA_SUPPORT
> > +     depends on VIDEO_DEV
> > +     depends on VIDEO_V4L2
> > +     select MEDIA_CONTROLLER
> > +     select V4L2_MEM2MEM_DEV
> > +     select VIDEOBUF2_DMA_CONTIG
> > +     select VIDEOBUF2_VMALLOC
> > +     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.
> > +
> >  endif # V4L_PLATFORM_DRIVERS
> >
> >  menuconfig V4L_MEM2MEM_DRIVERS
> 
> Regards,
> 
>         Hans