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| author | Nicolin Chen | 2018-02-12 23:03:16 +0100 |
|---|---|---|
| committer | Mark Brown | 2018-02-21 13:30:52 +0100 |
| commit | b6c93f7f60a0d0b61c1fce2872b9d4f7263d6ec2 (patch) | |
| tree | 74730964b767750a42cdda9e046002148e630be5 /sound/soc/fsl/fsl_ssi.c | |
| parent | ASoC: fsl_ssi: Clean up helper functions of trigger() (diff) | |
| download | kernel-qcow2-linux-b6c93f7f60a0d0b61c1fce2872b9d4f7263d6ec2.tar.gz kernel-qcow2-linux-b6c93f7f60a0d0b61c1fce2872b9d4f7263d6ec2.tar.xz kernel-qcow2-linux-b6c93f7f60a0d0b61c1fce2872b9d4f7263d6ec2.zip | |
ASoC: fsl_ssi: Add DAIFMT define for AC97
The _fsl_ssi_set_dai_fmt() bypasses an undefined format for AC97
mode. However, it's not really necessary if AC97 has its complete
format defined.
So this patch adds a DAIFMT macro of complete format including a
clock direction and polarity.
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Tested-by: Caleb Crome <caleb@crome.org>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/fsl/fsl_ssi.c')
| -rw-r--r-- | sound/soc/fsl/fsl_ssi.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 9f024a9afaa5..fc5768d243d1 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -90,6 +90,16 @@ SNDRV_PCM_FMTBIT_S24_LE) #endif +/* + * In AC97 mode, TXDIR bit is forced to 0 and TFDIR bit is forced to 1: + * - SSI inputs external bit clock and outputs frame sync clock -- CBM_CFS + * - Also have NB_NF to mark these two clocks will not be inverted + */ +#define FSLSSI_AC97_DAIFMT \ + (SND_SOC_DAIFMT_AC97 | \ + SND_SOC_DAIFMT_CBM_CFS | \ + SND_SOC_DAIFMT_NB_NF) + #define FSLSSI_SIER_DBG_RX_FLAGS \ (SSI_SIER_RFF0_EN | \ SSI_SIER_RLS_EN | \ @@ -964,8 +974,7 @@ static int _fsl_ssi_set_dai_fmt(struct device *dev, scr &= ~SSI_SCR_SYS_CLK_EN; break; default: - if (!fsl_ssi_is_ac97(ssi)) - return -EINVAL; + return -EINVAL; } stcr |= strcr; @@ -1372,7 +1381,7 @@ static int fsl_ssi_probe(struct platform_device *pdev) sprop = of_get_property(np, "fsl,mode", NULL); if (sprop) { if (!strcmp(sprop, "ac97-slave")) - ssi->dai_fmt = SND_SOC_DAIFMT_AC97; + ssi->dai_fmt = FSLSSI_AC97_DAIFMT; } /* Select DMA or FIQ */ |