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Commit 06859fca authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
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ASoC: core: If a platform doesn't have an of_node use parent's node 



Support was added to allow location of both CPU and CODEC components
of a DAI link from their parent's of_node if they did not have an
of_node themselves in this commit:

commit 3e0aa8d8 ("ASoC: core: If component doesn't have of_node
                      use parent's node instead")

However this leaves platforms as something of a special case as the
major DAI component that doesn't do this. Since this is useful for MFD
devices which often utilise a single device tree entry for the whole
device, add support for looking up platforms from the parent's of_node
as well.

Signed-off-by: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 1001354c

sound/soc/soc-core.c

+6 −2
Original line number Diff line number Diff line
@@ -993,6 +993,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card, 
	struct snd_soc_dai_link_component cpu_dai_component;

	struct snd_soc_dai **codec_dais;

	struct snd_soc_platform *platform;

	struct device_node *platform_of_node;

	const char *platform_name;

	int i;
@@ -1042,9 +1043,12 @@ static int soc_bind_dai_link(struct snd_soc_card *card, 


	/* find one from the set of registered platforms */

	list_for_each_entry(platform, &platform_list, list) {

		platform_of_node = platform->dev->of_node;

		if (!platform_of_node && platform->dev->parent->of_node)

			platform_of_node = platform->dev->parent->of_node;



		if (dai_link->platform_of_node) {

			if (platform->dev->of_node !=

			    dai_link->platform_of_node)

			if (platform_of_node != dai_link->platform_of_node)

				continue;

		} else {

			if (strcmp(platform->component.name, platform_name))