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Designware PCM is an extension to Designware I2S and they are dependent
on each other. For this reason, make Designware PCM a boolean which will
compile with Desigwnare I2S module. The name of the module is not changed
but the name of the files need to be changed.
Also, without this commit we get errors when probbing designware_i2s module
because of unspecified license:
designware_pcm: module license 'unspecified' taints kernel.
Disabling lock debugging due to kernel taint
designware_pcm: Unknown symbol __rcu_read_lock (err 0)
designware_pcm: Unknown symbol devm_snd_soc_register_platform (err 0)
designware_pcm: Unknown symbol synchronize_rcu (err 0)
designware_pcm: Unknown symbol __rcu_read_unlock (err 0)
designware_pcm: Unknown symbol snd_soc_set_runtime_hwparams (err 0)
So, this is really needed as a fix.
Fixes: 79361b2b98 ("ASoC: dwc: Add PIO PCM extension")
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
20 lines
609 B
Plaintext
20 lines
609 B
Plaintext
config SND_DESIGNWARE_I2S
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tristate "Synopsys I2S Device Driver"
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depends on CLKDEV_LOOKUP
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select SND_SOC_GENERIC_DMAENGINE_PCM
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help
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Say Y or M if you want to add support for I2S driver for
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Synopsys desigwnware I2S device. The device supports upto
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maximum of 8 channels each for play and record.
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config SND_DESIGNWARE_PCM
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bool "PCM PIO extension for I2S driver"
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depends on SND_DESIGNWARE_I2S
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help
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Say Y or N if you want to add a custom ALSA extension that registers
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a PCM and uses PIO to transfer data.
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This functionality is specially suited for I2S devices that don't have
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DMA support.
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