Unverified Commit f0b3bdbd authored Feb 21, 2018 by Fabio Estevam Committed by Mark Brown Feb 22, 2018

ASoC: soc-generic-dmaengine-pcm: Add a DMA debugfs_prefix entry



After the conversion from platform to component the following warnings
are seen:

fsl-ssi-dai 2028000.ssi: ASoC: Failed to create component debugfs
directory
fsl-spdif-dai 2004000.spdif: ASoC: Failed to create component debugfs
directory

As explained by Mark Brown:

"It's a legit warning - we shouldn't really be creating two components
for the same device.  However this is a bit of a corner case as it's the
dmaengine platform driver which is kind of a virtual device, it's not
really the device that we use with DMA that's being represented but
rather the link between that and the DMA controller."

Disambiguate the DMA component name by adding a "dma" debugfs_prefix
entry.

Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent 7928b2cb

sound/soc/soc-generic-dmaengine-pcm.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -431,6 +431,9 @@ int snd_dmaengine_pcm_register(struct device *dev,
		if (!pcm)
		return -ENOMEM;

		#ifdef CONFIG_DEBUG_FS
		pcm->component.debugfs_prefix = "dma";
		#endif
		pcm->config = config;
		pcm->flags = flags;