fsl_dma_new(9)

🌸 NAME 🌸

okay so welcome to fsl_dma_new(9), straight out of the Kernel API Manual, bestie 💖 — this one is all about initializing this PCM driver. Slay.

✨ SYNOPSIS ✨

int fsl_dma_new (struct snd_soc_component *component , struct snd_soc_pcm_runtime *rtd );

🎀 ARGUMENTS 🎀

• component — the manual literally says -- undescribed --, so that's all we get, bestie 🙈
• rtd — also -- undescribed --; iconic mysterious behavior, no cap 💅

💅 DESCRIPTION 💅

okay so this function gets called by soc_new_pcm, once for every DAI link in the machine driver's snd_soc_card structure. periodt.

and real talk: regardless of where the memory is actually allocated, since the device can technically DMA to any 36-bit address, we do need to set the DMA mask to 36. like, that part is not optional, fr fr 🔥

👑 SEE ALSO 👑

Kernel file ./sound/soc/fsl/fsl_dma.c — yes, that's the spot — plus these function besties:

• fsl_dma_abort_stream(9)
• fsl_dma_update_pointers(9)
• fsl_dma_isr(9)
• fsl_dma_open(9)
• fsl_dma_hw_params(9)
• fsl_dma_pointer(9)
• fsl_dma_hw_free(9)
• fsl_dma_close(9)
• find_ssi_node(9)

xoxo, this fsl_dma_new(9) page came from ./sound/soc/fsl and is dated October 2026 — mwah 💖🫶