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Diffstat (limited to 'sound/soc/stm/stm32_spdifrx.c')
-rw-r--r--sound/soc/stm/stm32_spdifrx.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/sound/soc/stm/stm32_spdifrx.c b/sound/soc/stm/stm32_spdifrx.c
index cd4b235fce57..3fd28ee01675 100644
--- a/sound/soc/stm/stm32_spdifrx.c
+++ b/sound/soc/stm/stm32_spdifrx.c
@@ -351,6 +351,8 @@ static int stm32_spdifrx_start_sync(struct stm32_spdifrx_data *spdifrx)
SPDIFRX_CR_CUMSK | SPDIFRX_CR_PTMSK | SPDIFRX_CR_RXSTEO;
cr_mask = cr;
+ cr |= SPDIFRX_CR_NBTRSET(SPDIFRX_NBTR_63);
+ cr_mask |= SPDIFRX_CR_NBTR_MASK;
cr |= SPDIFRX_CR_SPDIFENSET(SPDIFRX_SPDIFEN_SYNC);
cr_mask |= SPDIFRX_CR_SPDIFEN_MASK;
ret = regmap_update_bits(spdifrx->regmap, STM32_SPDIFRX_CR,
@@ -666,7 +668,7 @@ static irqreturn_t stm32_spdifrx_isr(int irq, void *devid)
struct snd_pcm_substream *substream = spdifrx->substream;
struct platform_device *pdev = spdifrx->pdev;
unsigned int cr, mask, sr, imr;
- unsigned int flags;
+ unsigned int flags, sync_state;
int err = 0, err_xrun = 0;
regmap_read(spdifrx->regmap, STM32_SPDIFRX_SR, &sr);
@@ -726,11 +728,23 @@ static irqreturn_t stm32_spdifrx_isr(int irq, void *devid)
}
if (err) {
- /* SPDIFRX in STATE_STOP. Disable SPDIFRX to clear errors */
+ regmap_read(spdifrx->regmap, STM32_SPDIFRX_CR, &cr);
+ sync_state = FIELD_GET(SPDIFRX_CR_SPDIFEN_MASK, cr) &&
+ SPDIFRX_SPDIFEN_SYNC;
+
+ /* SPDIFRX is in STATE_STOP. Disable SPDIFRX to clear errors */
cr = SPDIFRX_CR_SPDIFENSET(SPDIFRX_SPDIFEN_DISABLE);
regmap_update_bits(spdifrx->regmap, STM32_SPDIFRX_CR,
SPDIFRX_CR_SPDIFEN_MASK, cr);
+ /* If SPDIFRX was in STATE_SYNC, retry synchro */
+ if (sync_state) {
+ cr = SPDIFRX_CR_SPDIFENSET(SPDIFRX_SPDIFEN_SYNC);
+ regmap_update_bits(spdifrx->regmap, STM32_SPDIFRX_CR,
+ SPDIFRX_CR_SPDIFEN_MASK, cr);
+ return IRQ_HANDLED;
+ }
+
if (substream)
snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);