static bool lpass_cpu_regmap_readable(struct device *dev, unsigned int reg)
{
struct lpass_data *drvdata = dev_get_drvdata(dev);
struct lpass_variant *v = drvdata->variant;
int i;
for (i = 0; i < v->i2s_ports; ++i)
if (reg == LPAIF_I2SCTL_REG(v, i))
return true;
for (i = 0; i < v->irq_ports; ++i) {
if (reg == LPAIF_IRQEN_REG(v, i))
return true;
if (reg == LPAIF_IRQSTAT_REG(v, i))
return true;
}
for (i = 0; i < v->rdma_channels; ++i) {
if (reg == LPAIF_RDMACTL_REG(v, i))
return true;
if (reg == LPAIF_RDMABASE_REG(v, i))
return true;
if (reg == LPAIF_RDMABUFF_REG(v, i))
return true;
if (reg == LPAIF_RDMACURR_REG(v, i))
return true;
if (reg == LPAIF_RDMAPER_REG(v, i))
return true;
}
return false;
}
static bool lpass_cpu_regmap_readable(struct device *dev, unsigned int reg)
{
int i;
for (i = 0; i < LPAIF_I2S_PORT_NUM; ++i)
if (reg == LPAIF_I2SCTL_REG(i))
return true;
for (i = 0; i < LPAIF_IRQ_PORT_NUM; ++i) {
if (reg == LPAIF_IRQEN_REG(i))
return true;
if (reg == LPAIF_IRQSTAT_REG(i))
return true;
}
for (i = 0; i < LPAIF_RDMA_CHAN_NUM; ++i) {
if (reg == LPAIF_RDMACTL_REG(i))
return true;
if (reg == LPAIF_RDMABASE_REG(i))
return true;
if (reg == LPAIF_RDMABUFF_REG(i))
return true;
if (reg == LPAIF_RDMACURR_REG(i))
return true;
if (reg == LPAIF_RDMAPER_REG(i))
return true;
}
return false;
}
static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
struct lpass_data *drvdata =
snd_soc_platform_get_drvdata(soc_runtime->platform);
int ret;
ret = regmap_write(drvdata->lpaif_map,
LPAIF_RDMABASE_REG(LPAIF_RDMA_CHAN_MI2S),
runtime->dma_addr);
if (ret) {
dev_err(soc_runtime->dev, "%s() error writing to rdmabase reg: %d\n",
__func__, ret);
return ret;
}
ret = regmap_write(drvdata->lpaif_map,
LPAIF_RDMABUFF_REG(LPAIF_RDMA_CHAN_MI2S),
(snd_pcm_lib_buffer_bytes(substream) >> 2) - 1);
if (ret) {
dev_err(soc_runtime->dev, "%s() error writing to rdmabuff reg: %d\n",
__func__, ret);
return ret;
}
ret = regmap_write(drvdata->lpaif_map,
LPAIF_RDMAPER_REG(LPAIF_RDMA_CHAN_MI2S),
(snd_pcm_lib_period_bytes(substream) >> 2) - 1);
if (ret) {
dev_err(soc_runtime->dev, "%s() error writing to rdmaper reg: %d\n",
__func__, ret);
return ret;
}
ret = regmap_update_bits(drvdata->lpaif_map,
LPAIF_RDMACTL_REG(LPAIF_RDMA_CHAN_MI2S),
LPAIF_RDMACTL_ENABLE_MASK, LPAIF_RDMACTL_ENABLE_ON);
if (ret) {
dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n",
__func__, ret);
return ret;
}
return 0;
}
