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authorBo Shen <voice.shen@atmel.com>2014-02-10 14:09:45 +0800
committerMark Brown <broonie@linaro.org>2014-02-12 17:21:22 +0000
commit048d4ff81f1cf26b3f3627a9a69d35aff7898bb3 (patch)
tree694e6f6a08952f43c704693523984a3d8414d3eb /sound/soc/atmel
parent38dbfb59d1175ef458d006556061adeaa8751b72 (diff)
ASoC: atmel_ssc_dai: make option to choose clock
When SSC works in slave mode, according to the hardware design, the clock can get from TK pin, also can get from RK pin. So, add one parameter to choose where the clock from. Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/atmel')
-rw-r--r--sound/soc/atmel/atmel_ssc_dai.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index 1ead3c977a51..de433cfd044c 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -341,6 +341,7 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
{
int id = dai->id;
struct atmel_ssc_info *ssc_p = &ssc_info[id];
+ struct ssc_device *ssc = ssc_p->ssc;
struct atmel_pcm_dma_params *dma_params;
int dir, channels, bits;
u32 tfmr, rfmr, tcmr, rcmr;
@@ -466,7 +467,8 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
| SSC_BF(RCMR_START, start_event)
| SSC_BF(RCMR_CKI, SSC_CKI_RISING)
| SSC_BF(RCMR_CKO, SSC_CKO_NONE)
- | SSC_BF(RCMR_CKS, SSC_CKS_CLOCK);
+ | SSC_BF(RCMR_CKS, ssc->clk_from_rk_pin ?
+ SSC_CKS_PIN : SSC_CKS_CLOCK);
rfmr = SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
| SSC_BF(RFMR_FSOS, SSC_FSOS_NONE)
@@ -481,7 +483,8 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
| SSC_BF(TCMR_START, start_event)
| SSC_BF(TCMR_CKI, SSC_CKI_FALLING)
| SSC_BF(TCMR_CKO, SSC_CKO_NONE)
- | SSC_BF(TCMR_CKS, SSC_CKS_PIN);
+ | SSC_BF(TCMR_CKS, ssc->clk_from_rk_pin ?
+ SSC_CKS_CLOCK : SSC_CKS_PIN);
tfmr = SSC_BF(TFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
| SSC_BF(TFMR_FSDEN, 0)
@@ -550,7 +553,8 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
| SSC_BF(RCMR_START, SSC_START_RISING_RF)
| SSC_BF(RCMR_CKI, SSC_CKI_RISING)
| SSC_BF(RCMR_CKO, SSC_CKO_NONE)
- | SSC_BF(RCMR_CKS, SSC_CKS_PIN);
+ | SSC_BF(RCMR_CKS, ssc->clk_from_rk_pin ?
+ SSC_CKS_PIN : SSC_CKS_CLOCK);
rfmr = SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
| SSC_BF(RFMR_FSOS, SSC_FSOS_NONE)
@@ -565,7 +569,8 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
| SSC_BF(TCMR_START, SSC_START_RISING_RF)
| SSC_BF(TCMR_CKI, SSC_CKI_FALLING)
| SSC_BF(TCMR_CKO, SSC_CKO_NONE)
- | SSC_BF(TCMR_CKS, SSC_CKS_PIN);
+ | SSC_BF(RCMR_CKS, ssc->clk_from_rk_pin ?
+ SSC_CKS_CLOCK : SSC_CKS_PIN);
tfmr = SSC_BF(TFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
| SSC_BF(TFMR_FSDEN, 0)