[alsa-devel] [PATCHv5 2/2] ALSA: hda - Add driver for Tegra SoC HDA

Thierry Reding thierry.reding at gmail.com
Tue May 20 10:59:27 CEST 2014

On Mon, May 19, 2014 at 07:18:27PM -0700, Dylan Reid wrote:
> This adds a driver for the HDA block in Tegra SoCs.  The HDA bus is
> used to communicate with the HDMI codec on Tegra124.
> Most of the code is re-used from the Intel/PCI HDA driver.  It brings
> over only two of the module params, power_save and probe_mask.
> Signed-off-by: Dylan Reid <dgreid at chromium.org>
> Reviewed-by: Stephen Warren <swarren at nvidia.com>

When I run this on Jetson TK1 I get the following:

	[    1.571912] tegra-hda 70030000.hda: CORB reset timeout#1, CORBRP = 0

Is that expected?

The device seems to register properly:

	$ aplay -l
	**** List of PLAYBACK Hardware Devices ****
	card 0: tegrahda [tegra-hda], device 3: HDMI 0 [HDMI 0]
	  Subdevices: 1/1
	  Subdevice #0: subdevice #0
	card 1: TK1 [NVIDIA Tegra Jetson TK1], device 0: RT5640 PCM rt5640-aif1-0 []
	  Subdevices: 1/1
	  Subdevice #0: subdevice #0

Would you mind sharing the procedure how you test this? I tried various
incantations of this sort:

	$ aplay -D hw:0,3 /usr/share/sounds/alsa/Noise.wav


	$ aplay -D plughw:0,3 /usr/share/sounds/alsa/Noise.wav

to no avail.

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