It is possible that some pin widget may return with no converter
connected. So don't throw error if none are found to be connected.
Instead print a warning and continue.
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

commit 3c83ac23 ("ASoC: hdac_hdmi: check error return") fixes
the static checker warning reported by Dan Carpenter:

	sound/soc/codecs/hdac_hdmi.c:416 hdac_hdmi_parse_and_map_nid()
	warn: unsigned 'hdac->num_nodes' is never less than zero.

But it doesn't fix the issue completely.

It's also a failure if no sub nodes found for an afg node. So modify
the return condition appropriately.
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Use dev_to_hdac_dev() and to_ehdac_device() instead of open-coding.
Signed-off-by: NGeliang Tang <geliangtang@163.com>
Reviewed-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

As hdac->num_nodes is unsigned we can not check if
snd_hdac_get_sub_nodes() has returned error or success. Lets have a
temporary int to check the error value.
Signed-off-by: NSudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

kzalloc() can return NULL if it fails, and then we will be dereferencing
a NULL pointer.
Signed-off-by: NSudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

Use the component framework to keep the display on till the
playback in progress.
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

This patch uses hdmi framework in video to fill audio infoframe.
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

The DAI ops are used for triggering HDMI streams and configuring
the parameters
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Power up/down the AFG node during runtime resume/suspend.
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

This adds HDA based HDMI driver to be used in platforms like SKL
and onwards

Register the hdmi driver with hda bus and register dais.

Also parse the widget and initialize identified pin and converter
widgets.

For simplification, currently only one pin and one converter
widget are enabled on board, as well as limit the rates supported
to simples ones and not based on ELD.  This things will come
eventually once basic support for this is merged
Signed-off-by: NSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>