[PATCH v3 8/9] media: hantro: add initial SAMA5D4 support
Emil Velikov
emil.l.velikov at gmail.com
Thu Apr 1 14:54:21 BST 2021
On Wed, 31 Mar 2021 at 21:03, Ezequiel Garcia <ezequiel at collabora.com> wrote:
>
> On Wed, 2021-03-31 at 18:35 +0100, Emil Velikov wrote:
> > From: Emil Velikov <emil.velikov at collabora.com>
> >
> > The SoC features a Hantro G1 compatible video decoder, supporting the
> > MPEG-2, VP8 and H264 codecs with resolutions up-to 1280x720.
> >
> > Post-processing core is also available on the SoC.
> >
> > Cc: Rob Herring <robh+dt at kernel.org>
> > Cc: Frank Rowand <frowand.list at gmail.com>
> > Cc: devicetree at vger.kernel.org>
> > Acked-by: Nicolas Ferre <nicolas.ferre at microchip.com>
> > Reviewed-by: Ezequiel Garcia <ezequiel at collabora.com>
> > Signed-off-by: Emil Velikov <emil.velikov at collabora.com>
> > ---
> > v2
> > - Split DT and defconfig changes to separate patches (Eze)
> > - s/Atmel/Microchip/ (Nicolas)
> >
> > v3
> > - Drop the clk/irq names (RobH)
> > ---
> > drivers/staging/media/hantro/Kconfig | 10 +-
> > drivers/staging/media/hantro/Makefile | 3 +
> > drivers/staging/media/hantro/hantro_drv.c | 3 +
> > drivers/staging/media/hantro/hantro_hw.h | 1 +
> > .../staging/media/hantro/sama5d4_vdec_hw.c | 117 ++++++++++++++++++
> > 5 files changed, 133 insertions(+), 1 deletion(-)
> > create mode 100644 drivers/staging/media/hantro/sama5d4_vdec_hw.c
> >
> > diff --git a/drivers/staging/media/hantro/Kconfig b/drivers/staging/media/hantro/Kconfig
> > index 5b6cf9f62b1a..20b1f6d7b69c 100644
> > --- a/drivers/staging/media/hantro/Kconfig
> > +++ b/drivers/staging/media/hantro/Kconfig
> > @@ -1,7 +1,7 @@
> > # SPDX-License-Identifier: GPL-2.0
> > config VIDEO_HANTRO
> > tristate "Hantro VPU driver"
> > - depends on ARCH_MXC || ARCH_ROCKCHIP || COMPILE_TEST
> > + depends on ARCH_MXC || ARCH_ROCKCHIP || ARCH_AT91 || COMPILE_TEST
> > depends on VIDEO_DEV && VIDEO_V4L2
> > select MEDIA_CONTROLLER
> > select MEDIA_CONTROLLER_REQUEST_API
> > @@ -24,6 +24,14 @@ config VIDEO_HANTRO_IMX8M
> > help
> > Enable support for i.MX8M SoCs.
> >
> > +config VIDEO_HANTRO_SAMA5D4
> > + bool "Hantro VDEC SAMA5D4 support"
> > + depends on VIDEO_HANTRO
> > + depends on ARCH_AT91 || COMPILE_TEST
> > + default y
> > + help
> > + Enable support for Microchip SAMA5D4 SoCs.
> > +
> > config VIDEO_HANTRO_ROCKCHIP
> > bool "Hantro VPU Rockchip support"
> > depends on VIDEO_HANTRO
> > diff --git a/drivers/staging/media/hantro/Makefile b/drivers/staging/media/hantro/Makefile
> > index 3747a32799b2..f4b99901eeee 100644
> > --- a/drivers/staging/media/hantro/Makefile
> > +++ b/drivers/staging/media/hantro/Makefile
> > @@ -22,6 +22,9 @@ hantro-vpu-y += \
> > hantro-vpu-$(CONFIG_VIDEO_HANTRO_IMX8M) += \
> > imx8m_vpu_hw.o
> >
> > +hantro-vpu-$(CONFIG_VIDEO_HANTRO_SAMA5D4) += \
> > + sama5d4_vdec_hw.o
> > +
> > hantro-vpu-$(CONFIG_VIDEO_HANTRO_ROCKCHIP) += \
> > rk3288_vpu_hw.o \
> > rk3399_vpu_hw.o
> > diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
> > index d1294eb9cd07..74a3d9eab454 100644
> > --- a/drivers/staging/media/hantro/hantro_drv.c
> > +++ b/drivers/staging/media/hantro/hantro_drv.c
> > @@ -478,6 +478,9 @@ static const struct of_device_id of_hantro_match[] = {
> > #endif
> > #ifdef CONFIG_VIDEO_HANTRO_IMX8M
> > { .compatible = "nxp,imx8mq-vpu", .data = &imx8mq_vpu_variant, },
> > +#endif
> > +#ifdef CONFIG_VIDEO_HANTRO_SAMA5D4
> > + { .compatible = "microchip,sama5d4-vdec", .data = &sama5d4_vdec_variant, },
> > #endif
> > { /* sentinel */ }
> > };
> > diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> > index 73c71bb2320c..4d39da1d1581 100644
> > --- a/drivers/staging/media/hantro/hantro_hw.h
> > +++ b/drivers/staging/media/hantro/hantro_hw.h
> > @@ -152,6 +152,7 @@ extern const struct hantro_variant rk3399_vpu_variant;
> > extern const struct hantro_variant rk3328_vpu_variant;
> > extern const struct hantro_variant rk3288_vpu_variant;
> > extern const struct hantro_variant imx8mq_vpu_variant;
> > +extern const struct hantro_variant sama5d4_vdec_variant;
> >
> > extern const struct hantro_postproc_regs hantro_g1_postproc_regs;
> >
> > diff --git a/drivers/staging/media/hantro/sama5d4_vdec_hw.c b/drivers/staging/media/hantro/sama5d4_vdec_hw.c
> > new file mode 100644
> > index 000000000000..d52ac626f98a
> > --- /dev/null
> > +++ b/drivers/staging/media/hantro/sama5d4_vdec_hw.c
> > @@ -0,0 +1,117 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * Hantro VDEC driver
> > + *
> > + * Copyright (C) 2021 Collabora Ltd, Emil Velikov <emil.velikov at collabora.com>
> > + */
> > +
> > +#include "hantro.h"
> > +
> > +/*
> > + * Supported formats.
> > + */
> > +
> > +static const struct hantro_fmt sama5d4_vdec_postproc_fmts[] = {
> > + {
> > + .fourcc = V4L2_PIX_FMT_YUYV,
> > + .codec_mode = HANTRO_MODE_NONE,
> > + },
> > +};
> > +
> > +static const struct hantro_fmt sama5d4_vdec_fmts[] = {
> > + {
> > + .fourcc = V4L2_PIX_FMT_NV12,
> > + .codec_mode = HANTRO_MODE_NONE,
> > + },
> > + {
> > + .fourcc = V4L2_PIX_FMT_MPEG2_SLICE,
> > + .codec_mode = HANTRO_MODE_MPEG2_DEC,
> > + .max_depth = 2,
> > + .frmsize = {
> > + .min_width = 48,
> > + .max_width = 1280,
> > + .step_width = MB_DIM,
> > + .min_height = 48,
> > + .max_height = 720,
> > + .step_height = MB_DIM,
> > + },
> > + },
> > + {
> > + .fourcc = V4L2_PIX_FMT_VP8_FRAME,
> > + .codec_mode = HANTRO_MODE_VP8_DEC,
> > + .max_depth = 2,
> > + .frmsize = {
> > + .min_width = 48,
> > + .max_width = 1280,
> > + .step_width = MB_DIM,
> > + .min_height = 48,
> > + .max_height = 720,
> > + .step_height = MB_DIM,
> > + },
> > + },
> > + {
> > + .fourcc = V4L2_PIX_FMT_H264_SLICE,
> > + .codec_mode = HANTRO_MODE_H264_DEC,
> > + .max_depth = 2,
> > + .frmsize = {
> > + .min_width = 48,
> > + .max_width = 1280,
> > + .step_width = MB_DIM,
> > + .min_height = 48,
> > + .max_height = 720,
> > + .step_height = MB_DIM,
> > + },
> > + },
> > +};
> > +
> > +static int sama5d4_hw_init(struct hantro_dev *vpu)
> > +{
> > + return 0;
> > +}
> > +
> > +/*
> > + * Supported codec ops.
> > + */
> > +
> > +static const struct hantro_codec_ops sama5d4_vdec_codec_ops[] = {
> > + [HANTRO_MODE_MPEG2_DEC] = {
> > + .run = hantro_g1_mpeg2_dec_run,
> > + .reset = hantro_g1_reset,
> > + .init = hantro_mpeg2_dec_init,
> > + .exit = hantro_mpeg2_dec_exit,
> > + },
> > + [HANTRO_MODE_VP8_DEC] = {
> > + .run = hantro_g1_vp8_dec_run,
> > + .reset = hantro_g1_reset,
> > + .init = hantro_vp8_dec_init,
> > + .exit = hantro_vp8_dec_exit,
> > + },
> > + [HANTRO_MODE_H264_DEC] = {
> > + .run = hantro_g1_h264_dec_run,
> > + .reset = hantro_g1_reset,
> > + .init = hantro_h264_dec_init,
> > + .exit = hantro_h264_dec_exit,
> > + },
> > +};
> > +
> > +static const struct hantro_irq sama5d4_irqs[] = {
> > + { NULL, hantro_g1_irq },
>
> As suggested I think you can have a name in here.
>
> > +};
> > +
>
> I would add a comment here explaining why this has to be NULL.
>
> Now that I see this in practice, I'm wondering if we should just
> keep the name here, we don't have any NULL names and do
> something like this in hantro_probe (in patch 6/9):
>
> /* If only one clock, we shouldn't have a clock name. */
> if (vpu->variant->num_clocks > 1) {
> for (i = 0; i < vpu->variant->num_clocks; i++)
> vpu->clocks[i].id = vpu->variant->clk_names[i];
> }
>
Keeping the names within the driver, while doing a num_{clk,irc} in
hantro sounds like the better option. Will send v4 in a few minutes.
Thanks
-Emil
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