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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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10a9cca132
Current Renesas Sound driver requests DMA channel when .probe timing, and release it when .remove timing. And use DMA on .start/.stop But, Audio DMAC power ON was handled when request timing (= .probe), and power OFF was when release timing (= .remove). This means Audio DMAC power is always ON during driver was enabled. To fixup this issue, it should request/release DMA channel on each playback/recorde timing. But, DMA channel request/release function uses mutex lock inside. This means it will breaks current spinlock's interrupt protect. To solve this issue, DMA channel request/release function needs to be called from non-spinlock area. This patch adds its callback. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org> |
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| .. | ||
| rcar | ||
| dma-sh7760.c | ||
| fsi.c | ||
| hac.c | ||
| Kconfig | ||
| Makefile | ||
| migor.c | ||
| sh7760-ac97.c | ||
| siu_dai.c | ||
| siu_pcm.c | ||
| siu.h | ||
| ssi.c | ||