Messages in this thread | | | Date | Wed, 25 May 2022 12:39:31 +0200 | Subject | Re: [PATCH v7 1/1] firmware: mediatek: add adsp ipc protocol interface | From | AngeloGioacchino Del Regno <> |
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Il 07/04/22 15:03, Allen-KH Cheng ha scritto: > From: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com> > > Some of mediatek processors contain > the Tensilica HiFix DSP for audio processing. > > The communication between Host CPU and DSP firmware is > taking place using a shared memory area for message passing. > > ADSP IPC protocol offers (send/recv) interfaces using > mediatek-mailbox APIs. > > We use two mbox channels to implement a request-reply protocol. > > Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com> > Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> > Reviewed-by: Curtis Malainey <cujomalainey@chromium.org> > Reviewed-by: Tzung-Bi Shih <tzungbi@google.com> > Reviewed-by: YC Hung <yc.hung@mediatek.com> > Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> > --- > drivers/firmware/Kconfig | 1 + > drivers/firmware/Makefile | 1 + > drivers/firmware/mediatek/Kconfig | 9 + > drivers/firmware/mediatek/Makefile | 2 + > drivers/firmware/mediatek/mtk-adsp-ipc.c | 161 ++++++++++++++++++ > .../linux/firmware/mediatek/mtk-adsp-ipc.h | 65 +++++++ > 6 files changed, 239 insertions(+) > create mode 100644 drivers/firmware/mediatek/Kconfig > create mode 100644 drivers/firmware/mediatek/Makefile > create mode 100644 drivers/firmware/mediatek/mtk-adsp-ipc.c > create mode 100644 include/linux/firmware/mediatek/mtk-adsp-ipc.h >
Gentle ping for this one, as it's getting stale... and it's ready.
To add context, this driver is *really* necessary, as support for it is added in the MT8195 ASoC SOF driver as a platform device [1], and the necessary memory regions are coming from the mediatek,mt8195-dsp [2] driver.
[1]: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/sound/soc/sof/mediatek/mt8195/mt8195.c?h=next-20220525#n389
[2]: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/Documentation/devicetree/bindings/dsp/mediatek,mt8195-dsp.yaml?h=next-20220525#n61
Cheers, Angelo
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