[PATCH v3 18/18] ASoC: core: Probe components on demand
From: Tomeu Vizoso <hidden>
Date: 2015-08-06 14:19:37
Also in:
linux-acpi, linux-devicetree, lkml
Subsystem:
sound, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers:
Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Linus Torvalds
When looking up a component through its OF node, probe it if it hasn't already. The goal is to reduce deferred probes to a minimum, as it makes it very cumbersome to find out why a device failed to probe, and can introduce very big delays in when a critical device is probed. Signed-off-by: Tomeu Vizoso <redacted> --- Changes in v3: None Changes in v2: None sound/soc/soc-core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index c81aec9c872a..1157049b1a34 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c@@ -34,6 +34,7 @@ #include <linux/ctype.h> #include <linux/slab.h> #include <linux/of.h> +#include <linux/of_platform.h> #include <sound/core.h> #include <sound/jack.h> #include <sound/pcm.h>
@@ -865,10 +866,12 @@ static const struct snd_soc_dai_ops null_dai_ops = { }; static struct snd_soc_component *soc_find_component( - const struct device_node *of_node, const char *name) + struct device_node *of_node, const char *name) { struct snd_soc_component *component; + of_platform_probe(of_node); + lockdep_assert_held(&client_mutex); list_for_each_entry(component, &component_list, list) {
@@ -890,6 +893,8 @@ static struct snd_soc_dai *snd_soc_find_dai( struct snd_soc_dai *dai; struct device_node *component_of_node; + of_platform_probe(dlc->of_node); + lockdep_assert_held(&client_mutex); /* Find CPU DAI from registered DAIs*/
--
2.4.3