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X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org 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 --- sound/soc/spacemit/k1_i2s.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/spacemit/k1_i2s.c b/sound/soc/spacemit/k1_i2s.c index e59624b2e23a..cef883ba4de9 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; -- 2.54.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv