From 4b29d5a0bdb9c0d52356dd04b4c08180e0c8aa71 Mon Sep 17 00:00:00 2001 From: Stephan Gerhold Date: Mon, 25 Oct 2021 12:55:03 +0200 Subject: ASoC: qcom: common: Respect status = "disabled" on DAI link nodes At the moment, the DAI link nodes in the device tree always have to be specified completely in each device tree. However, the available interfaces (e.g. Primary/Secondary/Tertiary/Quaternary MI2S) are common for all devices of a SoC, so the majority of the definitions can be placed in a common device tree include to reduce boilerplate. Make it possible to define such stubs in device tree includes by respecting the "status" property for the DAI link nodes. This is a trivial change that just requires switching to the _available_ OF functions that check the "status" property additionally. This allows defining a stub like: sound_dai_quaternary: dai-link-quaternary { link-name = "Quaternary MI2S"; status = "disabled"; /* Needs extra codec configuration */ cpu { sound-dai = <&q6afedai QUATERNARY_MI2S_RX>; }; platform { sound-dai = <&q6routing>; }; }; where the codec would be filled in by the device-specific device tree. For existing device trees this change does not make any difference. A missing "status" property is treated like status = "okay". Cc: Srinivas Kandagatla Signed-off-by: Stephan Gerhold Reviewed-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20211025105503.49444-1-stephan@gerhold.net Signed-off-by: Mark Brown --- sound/soc/qcom/common.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'sound') diff --git a/sound/soc/qcom/common.c b/sound/soc/qcom/common.c index 09af00700700..2e1c618f7529 100644 --- a/sound/soc/qcom/common.c +++ b/sound/soc/qcom/common.c @@ -44,7 +44,7 @@ int qcom_snd_parse_of(struct snd_soc_card *card) return ret; /* Populate links */ - num_links = of_get_child_count(dev->of_node); + num_links = of_get_available_child_count(dev->of_node); /* Allocate the DAI link array */ card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL); @@ -54,7 +54,7 @@ int qcom_snd_parse_of(struct snd_soc_card *card) card->num_links = num_links; link = card->dai_link; - for_each_child_of_node(dev->of_node, np) { + for_each_available_child_of_node(dev->of_node, np) { dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL); if (!dlc) { ret = -ENOMEM; -- cgit v1.2.3