Unverified Commit 03dcb5b6 authored by Troy Mitchell's avatar Troy Mitchell Committed by Mark Brown
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ASoC: spacemit: adjust FIFO trigger threshold to half FIFO size 



Set both TX and RX FIFO trigger thresholds (TFT/RFT) to 0xF (half of
the 32-entry FIFO) instead of 5. This provides better DMA efficiency
by allowing more data to accumulate before triggering a DMA request,
reducing the number of DMA transactions needed.

Signed-off-by: default avatarTroy Mitchell <troy.mitchell@linux.spacemit.com>
Link: https://patch.msgid.link/20260429-k3-i2s-v1-3-2fe99db11ecb@linux.spacemit.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 6b4afbaa

sound/soc/spacemit/k1_i2s.c

+2 −2
Original line number Diff line number Diff line
@@ -93,8 +93,8 @@ static void spacemit_i2s_init(struct spacemit_i2s_dev *i2s) 
	u32 sscr_val, sspsp_val, ssfcr_val, ssrwt_val;



	sscr_val = SSCR_TRAIL | SSCR_FRF_PSP;

	ssfcr_val = FIELD_PREP(SSFCR_FIELD_TFT, 5) |

		    FIELD_PREP(SSFCR_FIELD_RFT, 5) |

	ssfcr_val = FIELD_PREP(SSFCR_FIELD_TFT, 0xF) |

		    FIELD_PREP(SSFCR_FIELD_RFT, 0xF) |

		    SSFCR_RSRE | SSFCR_TSRE;

	ssrwt_val = SSRWT_RWOT;

	sspsp_val = SSPSP_SFRMP;