diff options
Diffstat (limited to 'sound/soc/bcm/bcm2835-i2s.c')
| -rw-r--r-- | sound/soc/bcm/bcm2835-i2s.c | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/sound/soc/bcm/bcm2835-i2s.c b/sound/soc/bcm/bcm2835-i2s.c index 3d668f449bc1..e3fc4bee8cfd 100644 --- a/sound/soc/bcm/bcm2835-i2s.c +++ b/sound/soc/bcm/bcm2835-i2s.c @@ -127,14 +127,14 @@ struct bcm2835_i2s_dev { static void bcm2835_i2s_start_clock(struct bcm2835_i2s_dev *dev) { - unsigned int master = dev->fmt & SND_SOC_DAIFMT_MASTER_MASK; + unsigned int provider = dev->fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK; if (dev->clk_prepared) return; - switch (master) { - case SND_SOC_DAIFMT_CBS_CFS: - case SND_SOC_DAIFMT_CBS_CFM: + switch (provider) { + case SND_SOC_DAIFMT_CBC_CFC: + case SND_SOC_DAIFMT_CBC_CFP: clk_prepare_enable(dev->clk); dev->clk_prepared = true; break; @@ -337,8 +337,8 @@ static int bcm2835_i2s_hw_params(struct snd_pcm_substream *substream, unsigned int rx_mask, tx_mask; unsigned int rx_ch1_pos, rx_ch2_pos, tx_ch1_pos, tx_ch2_pos; unsigned int mode, format; - bool bit_clock_master = false; - bool frame_sync_master = false; + bool bit_clock_provider = false; + bool frame_sync_provider = false; bool frame_start_falling_edge = false; uint32_t csreg; int ret = 0; @@ -383,36 +383,36 @@ static int bcm2835_i2s_hw_params(struct snd_pcm_substream *substream, if (data_length > slot_width) return -EINVAL; - /* Check if CPU is bit clock master */ - switch (dev->fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBS_CFS: - case SND_SOC_DAIFMT_CBS_CFM: - bit_clock_master = true; + /* Check if CPU is bit clock provider */ + switch (dev->fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { + case SND_SOC_DAIFMT_CBC_CFC: + case SND_SOC_DAIFMT_CBC_CFP: + bit_clock_provider = true; break; - case SND_SOC_DAIFMT_CBM_CFS: - case SND_SOC_DAIFMT_CBM_CFM: - bit_clock_master = false; + case SND_SOC_DAIFMT_CBP_CFC: + case SND_SOC_DAIFMT_CBP_CFP: + bit_clock_provider = false; break; default: return -EINVAL; } - /* Check if CPU is frame sync master */ - switch (dev->fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBS_CFS: - case SND_SOC_DAIFMT_CBM_CFS: - frame_sync_master = true; + /* Check if CPU is frame sync provider */ + switch (dev->fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { + case SND_SOC_DAIFMT_CBC_CFC: + case SND_SOC_DAIFMT_CBP_CFC: + frame_sync_provider = true; break; - case SND_SOC_DAIFMT_CBS_CFM: - case SND_SOC_DAIFMT_CBM_CFM: - frame_sync_master = false; + case SND_SOC_DAIFMT_CBC_CFP: + case SND_SOC_DAIFMT_CBP_CFP: + frame_sync_provider = false; break; default: return -EINVAL; } /* Clock should only be set up here if CPU is clock master */ - if (bit_clock_master && + if (bit_clock_provider && (!dev->clk_prepared || dev->clk_rate != bclk_rate)) { if (dev->clk_prepared) bcm2835_i2s_stop_clock(dev); @@ -501,11 +501,11 @@ static int bcm2835_i2s_hw_params(struct snd_pcm_substream *substream, /* * Transmitting data immediately after frame start, eg * in left-justified or DSP mode A, only works stable - * if bcm2835 is the frame clock master. + * if bcm2835 is the frame clock provider. */ - if ((!rx_ch1_pos || !tx_ch1_pos) && !frame_sync_master) + if ((!rx_ch1_pos || !tx_ch1_pos) && !frame_sync_provider) dev_warn(dev->dev, - "Unstable slave config detected, L/R may be swapped"); + "Unstable consumer config detected, L/R may be swapped"); /* * Set format for both streams. @@ -538,11 +538,11 @@ static int bcm2835_i2s_hw_params(struct snd_pcm_substream *substream, mode |= BCM2835_I2S_FSLEN(framesync_length); /* CLKM selects bcm2835 clock slave mode */ - if (!bit_clock_master) + if (!bit_clock_provider) mode |= BCM2835_I2S_CLKM; /* FSM selects bcm2835 frame sync slave mode */ - if (!frame_sync_master) + if (!frame_sync_provider) mode |= BCM2835_I2S_FSM; /* CLKI selects normal clocking mode, sampling on rising edge */ |