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ASoC: tegra20-spdif: stop setting slave_id

The DMA resource is never set up anywhere, and passing this as slave_id
has not been the proper procedure in a long time.

As a preparation for removing all slave_id references from the ALSA code,
remove this one.

According to Dmitry Osipenko, this driver has never been used and
the mechanism for configuring DMA would not work as it is implemented,
so this part will get rewritten when the driver gets put into use
again in the future.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211122222203.4103644-2-arnd@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

authored by

Arnd Bergmann and committed by
Vinod Koul 0725ac9a fa55b7dc

-1
-1
sound/soc/tegra/tegra20_spdif.c
··· 290 290 spdif->playback_dma_data.addr = mem->start + TEGRA20_SPDIF_DATA_OUT; 291 291 spdif->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; 292 292 spdif->playback_dma_data.maxburst = 4; 293 - spdif->playback_dma_data.slave_id = dmareq->start; 294 293 295 294 pm_runtime_enable(&pdev->dev); 296 295