ASoC: dwc: Add TDM mode support
Depending on hardware implementaion of DWC I2S controller may support
TDM mode if enabled in SoC at design time.
Unfortunately there is no way to detect TDM capability for DWC by
reading registers. Anyway, if such capability enabled, TDM mode
can be enabled and configured by dai-tdm-slot-* DT options.
Signed-off-by: Maxim Kochetkov <fido_max@inbox.ru>
Link: https://lore.kernel.org/r/20230622200031.120168-1-fido_max@inbox.ru
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/dwc/dwc-pcm.c b/sound/soc/dwc/dwc-pcm.c
index 9f25631..f99262b 100644
--- a/sound/soc/dwc/dwc-pcm.c
+++ b/sound/soc/dwc/dwc-pcm.c
@@ -31,8 +31,8 @@ static unsigned int dw_pcm_tx_##sample_bits(struct dw_i2s_dev *dev, \
int i; \
\
for (i = 0; i < dev->fifo_th; i++) { \
- iowrite32(p[tx_ptr][0], dev->i2s_base + LRBR_LTHR(0)); \
- iowrite32(p[tx_ptr][1], dev->i2s_base + RRBR_RTHR(0)); \
+ iowrite32(p[tx_ptr][0], dev->i2s_base + dev->l_reg); \
+ iowrite32(p[tx_ptr][1], dev->i2s_base + dev->r_reg); \
period_pos++; \
if (++tx_ptr >= runtime->buffer_size) \
tx_ptr = 0; \
@@ -51,8 +51,8 @@ static unsigned int dw_pcm_rx_##sample_bits(struct dw_i2s_dev *dev, \
int i; \
\
for (i = 0; i < dev->fifo_th; i++) { \
- p[rx_ptr][0] = ioread32(dev->i2s_base + LRBR_LTHR(0)); \
- p[rx_ptr][1] = ioread32(dev->i2s_base + RRBR_RTHR(0)); \
+ p[rx_ptr][0] = ioread32(dev->i2s_base + dev->l_reg); \
+ p[rx_ptr][1] = ioread32(dev->i2s_base + dev->r_reg); \
period_pos++; \
if (++rx_ptr >= runtime->buffer_size) \
rx_ptr = 0; \
