diff options
| author | Troy Mitchell <troy.mitchell@linux.spacemit.com> | 2026-04-29 09:38:48 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-04-29 11:41:32 +0900 |
| commit | 03dcb5b68a96b51157ec2d17042fa2f0106828ae (patch) | |
| tree | 3b04c2a0e2409b45c7e93876639e5bfb0dd4f959 | |
| parent | 6b4afbaaa342eaa52172e0be5ef8d1fcbf9ff460 (diff) | |
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: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Link: https://patch.msgid.link/20260429-k3-i2s-v1-3-2fe99db11ecb@linux.spacemit.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/spacemit/k1_i2s.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/soc/spacemit/k1_i2s.c b/sound/soc/spacemit/k1_i2s.c index bb73d32a1b09..43481f387c44 100644 --- a/sound/soc/spacemit/k1_i2s.c +++ b/sound/soc/spacemit/k1_i2s.c @@ -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; |