linux-toradex.git/include/linux/firmware/mediatek, branch v5.19-rc8 Linux kernel for Apalis and Colibri modules firmware: mediatek: Add adsp ipc protocol interface 2022-05-16T11:58:11+00:00 TingHan Shen tinghan.shen@mediatek.com 2022-05-12T08:22:13+00:00 9db69df4bdd37eb1f65b6931ee067fb15b9a4d5c 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> Signed-off-by: TingHan Shen <tinghan.shen@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> Link: https://lore.kernel.org/r/20220512082215.3018-2-tinghan.shen@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org> 
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>
Signed-off-by: TingHan Shen <tinghan.shen@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>
Link: https://lore.kernel.org/r/20220512082215.3018-2-tinghan.shen@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>