CONFIG_SND_EP93XX_SOC_I2S_WATCHDOG: IRQ based underflow watchdog workaround

General informations

The Linux kernel configuration item CONFIG_SND_EP93XX_SOC_I2S_WATCHDOG:

• prompt: IRQ based underflow watchdog workaround
• type: bool
• depends on: (none)
• defined in sound/soc/cirrus/Kconfig
• found in Linux kernels: 4.18–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

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.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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