Merge tag 'rproc-v4.18' of git://github.com/andersson/remoteproc

[linux-2.6-block.git] / sound / soc / cirrus / Kconfig

diff --git a/sound/soc/cirrus/Kconfig b/sound/soc/cirrus/Kconfig
index c7cd60f009e93e69ef2220eec3eb6ec97a9e6500..e09199124c36f208894e8b4a90d38ed82d2f4025 100644 (file)
--- a/sound/soc/cirrus/Kconfig
+++ b/sound/soc/cirrus/Kconfig
@@ -9,6 +9,23 @@ config SND_EP93XX_SOC
 config SND_EP93XX_SOC_I2S
        tristate
 
+if SND_EP93XX_SOC_I2S
+
+config SND_EP93XX_SOC_I2S_WATCHDOG
+       bool "IRQ based underflow watchdog workaround"
+       default y
+       help
+         I2S controller on EP93xx seems to have undocumented HW issue.
+         Underflow of internal I2S controller FIFO could confuse the
+         state machine and the whole stream can be shifted by one byte
+         until I2S is disabled. This option enables IRQ based watchdog
+         which disables and re-enables I2S in case of underflow and
+         fills FIFO with zeroes.
+
+         If you are unsure how to answer this question, answer Y.
+
+endif # if SND_EP93XX_SOC_I2S
+
 config SND_EP93XX_SOC_AC97
        tristate
        select AC97_BUS