On Mon, 2016-02-15 at 11:13 +0100, Hans Verkuil wrote: > On 02/04/2016 12:34 PM, Tiffany Lin wrote: > > The VPU driver for hw video codec embedded in Mediatek's MT8173 SOCs. > > It is able to handle video decoding/encoding of in a range of formats. > > The driver provides with VPU firmware download, memory management and > > the communication interface between CPU and VPU. > > For VPU initialization, it will create virtual memory for CPU access and > > IOMMU address for vcodec hw device access. When a decode/encode instance > > opens a device node, vpu driver will download vpu firmware to the device. > > A decode/encode instant will decode/encode a frame using VPU > > interface to interrupt vpu to handle decoding/encoding jobs. > > > > Signed-off-by: Andrew-CT Chen <andrew-ct.chen@xxxxxxxxxxxx> > > Signed-off-by: Tiffany Lin <tiffany.lin@xxxxxxxxxxxx> > > --- > > drivers/media/platform/Kconfig | 9 + > > drivers/media/platform/Makefile | 2 + > > drivers/media/platform/mtk-vpu/Makefile | 1 + > > drivers/media/platform/mtk-vpu/mtk_vpu.c | 994 ++++++++++++++++++++++++++++++ > > drivers/media/platform/mtk-vpu/mtk_vpu.h | 167 +++++ > > 5 files changed, 1173 insertions(+) > > create mode 100644 drivers/media/platform/mtk-vpu/Makefile > > create mode 100644 drivers/media/platform/mtk-vpu/mtk_vpu.c > > create mode 100644 drivers/media/platform/mtk-vpu/mtk_vpu.h > > > > diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig > > index ccbc974..ba812d6 100644 > > --- a/drivers/media/platform/Kconfig > > +++ b/drivers/media/platform/Kconfig > > @@ -148,6 +148,15 @@ config VIDEO_CODA > > Coda is a range of video codec IPs that supports > > H.264, MPEG-4, and other video formats. > > > > +config VIDEO_MEDIATEK_VPU > > + tristate "Mediatek Video Processor Unit" > > + depends on VIDEO_DEV && VIDEO_V4L2 && ARCH_MEDIATEK > > + ---help--- > > + This driver provides downloading VPU firmware and > > + communicating with VPU. This driver for hw video > > + codec embedded in new Mediatek's SOCs. It is able > > + to handle video decoding/encoding in a range of formats. > > Can you be more specific in this text and mention for which Mediatek SoCs > this driver is for? Just like you did in the commit log. > Got it. We will add more specific description in Kconfig in next version. > Also add something like this: > > To compile this driver as a module, choose M here: the module > will be called mtk-vpu. > > I always find it useful if the Kconfig text mentions the module name. > Got it. We will fix this. Thanks for sharing experience. best regards, Tiffany > Regards, > > Hans > > > + > > config VIDEO_MEM2MEM_DEINTERLACE > > tristate "Deinterlace support" > > depends on VIDEO_DEV && VIDEO_V4L2 && DMA_ENGINE > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
