diff options
-rw-r--r-- | sound/soc/atmel/atmel_ssc_dai.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c index 99ff35e2a25d..e691aab60761 100644 --- a/sound/soc/atmel/atmel_ssc_dai.c +++ b/sound/soc/atmel/atmel_ssc_dai.c | |||
@@ -348,7 +348,6 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, | |||
348 | struct atmel_pcm_dma_params *dma_params; | 348 | struct atmel_pcm_dma_params *dma_params; |
349 | int dir, channels, bits; | 349 | int dir, channels, bits; |
350 | u32 tfmr, rfmr, tcmr, rcmr; | 350 | u32 tfmr, rfmr, tcmr, rcmr; |
351 | int start_event; | ||
352 | int ret; | 351 | int ret; |
353 | int fslen, fslen_ext; | 352 | int fslen, fslen_ext; |
354 | 353 | ||
@@ -457,19 +456,10 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, | |||
457 | * The SSC transmit clock is obtained from the BCLK signal on | 456 | * The SSC transmit clock is obtained from the BCLK signal on |
458 | * on the TK line, and the SSC receive clock is | 457 | * on the TK line, and the SSC receive clock is |
459 | * generated from the transmit clock. | 458 | * generated from the transmit clock. |
460 | * | ||
461 | * For single channel data, one sample is transferred | ||
462 | * on the falling edge of the LRC clock. | ||
463 | * For two channel data, one sample is | ||
464 | * transferred on both edges of the LRC clock. | ||
465 | */ | 459 | */ |
466 | start_event = ((channels == 1) | ||
467 | ? SSC_START_FALLING_RF | ||
468 | : SSC_START_EDGE_RF); | ||
469 | |||
470 | rcmr = SSC_BF(RCMR_PERIOD, 0) | 460 | rcmr = SSC_BF(RCMR_PERIOD, 0) |
471 | | SSC_BF(RCMR_STTDLY, START_DELAY) | 461 | | SSC_BF(RCMR_STTDLY, START_DELAY) |
472 | | SSC_BF(RCMR_START, start_event) | 462 | | SSC_BF(RCMR_START, SSC_START_FALLING_RF) |
473 | | SSC_BF(RCMR_CKI, SSC_CKI_RISING) | 463 | | SSC_BF(RCMR_CKI, SSC_CKI_RISING) |
474 | | SSC_BF(RCMR_CKO, SSC_CKO_NONE) | 464 | | SSC_BF(RCMR_CKO, SSC_CKO_NONE) |
475 | | SSC_BF(RCMR_CKS, ssc->clk_from_rk_pin ? | 465 | | SSC_BF(RCMR_CKS, ssc->clk_from_rk_pin ? |
@@ -478,14 +468,14 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, | |||
478 | rfmr = SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE) | 468 | rfmr = SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE) |
479 | | SSC_BF(RFMR_FSOS, SSC_FSOS_NONE) | 469 | | SSC_BF(RFMR_FSOS, SSC_FSOS_NONE) |
480 | | SSC_BF(RFMR_FSLEN, 0) | 470 | | SSC_BF(RFMR_FSLEN, 0) |
481 | | SSC_BF(RFMR_DATNB, 0) | 471 | | SSC_BF(RFMR_DATNB, (channels - 1)) |
482 | | SSC_BIT(RFMR_MSBF) | 472 | | SSC_BIT(RFMR_MSBF) |
483 | | SSC_BF(RFMR_LOOP, 0) | 473 | | SSC_BF(RFMR_LOOP, 0) |
484 | | SSC_BF(RFMR_DATLEN, (bits - 1)); | 474 | | SSC_BF(RFMR_DATLEN, (bits - 1)); |
485 | 475 | ||
486 | tcmr = SSC_BF(TCMR_PERIOD, 0) | 476 | tcmr = SSC_BF(TCMR_PERIOD, 0) |
487 | | SSC_BF(TCMR_STTDLY, START_DELAY) | 477 | | SSC_BF(TCMR_STTDLY, START_DELAY) |
488 | | SSC_BF(TCMR_START, start_event) | 478 | | SSC_BF(TCMR_START, SSC_START_FALLING_RF) |
489 | | SSC_BF(TCMR_CKI, SSC_CKI_FALLING) | 479 | | SSC_BF(TCMR_CKI, SSC_CKI_FALLING) |
490 | | SSC_BF(TCMR_CKO, SSC_CKO_NONE) | 480 | | SSC_BF(TCMR_CKO, SSC_CKO_NONE) |
491 | | SSC_BF(TCMR_CKS, ssc->clk_from_rk_pin ? | 481 | | SSC_BF(TCMR_CKS, ssc->clk_from_rk_pin ? |
@@ -495,7 +485,7 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, | |||
495 | | SSC_BF(TFMR_FSDEN, 0) | 485 | | SSC_BF(TFMR_FSDEN, 0) |
496 | | SSC_BF(TFMR_FSOS, SSC_FSOS_NONE) | 486 | | SSC_BF(TFMR_FSOS, SSC_FSOS_NONE) |
497 | | SSC_BF(TFMR_FSLEN, 0) | 487 | | SSC_BF(TFMR_FSLEN, 0) |
498 | | SSC_BF(TFMR_DATNB, 0) | 488 | | SSC_BF(TFMR_DATNB, (channels - 1)) |
499 | | SSC_BIT(TFMR_MSBF) | 489 | | SSC_BIT(TFMR_MSBF) |
500 | | SSC_BF(TFMR_DATDEF, 0) | 490 | | SSC_BF(TFMR_DATDEF, 0) |
501 | | SSC_BF(TFMR_DATLEN, (bits - 1)); | 491 | | SSC_BF(TFMR_DATLEN, (bits - 1)); |