The patch
ASoC: arizona: Add a notifier chain for CODEC events
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying
to this mail.
Thanks,
Mark
>From 28d8d49876660a4ecd1aaa94e49f6a9bf8c701f1 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 13 May 2016 16:45:18 +0100
Subject: [PATCH] ASoC: arizona: Add a notifier chain for CODEC events
Add a notifier chain that can be used from the machine driver to catch
events generated by the CODEC.
Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
include/linux/mfd/arizona/core.h | 10 ++++++++++
sound/soc/codecs/arizona.c | 35 +++++++++++++++++++++++++++++++++++
sound/soc/codecs/arizona.h | 10 ++++++++++
sound/soc/codecs/cs47l24.c | 1 +
sound/soc/codecs/wm5110.c | 1 +
5 files changed, 57 insertions(+)
diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h
index d55a42297d49..58ab4c0fe761 100644
--- a/include/linux/mfd/arizona/core.h
+++ b/include/linux/mfd/arizona/core.h
@@ -14,6 +14,7 @@
#define _WM_ARIZONA_CORE_H
#include <linux/interrupt.h>
+#include <linux/notifier.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/mfd/arizona/pdata.h>
@@ -148,8 +149,17 @@ struct arizona {
uint16_t dac_comp_coeff;
uint8_t dac_comp_enabled;
struct mutex dac_comp_lock;
+
+ struct blocking_notifier_head notifier;
};
+static inline int arizona_call_notifiers(struct arizona *arizona,
+ unsigned long event,
+ void *data)
+{
+ return blocking_notifier_call_chain(&arizona->notifier, event, data);
+}
+
int arizona_clk32k_enable(struct arizona *arizona);
int arizona_clk32k_disable(struct arizona *arizona);
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index 664a8c044ffb..7f9ab92ffa91 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -324,6 +324,17 @@ int arizona_init_gpio(struct snd_soc_codec *codec)
}
EXPORT_SYMBOL_GPL(arizona_init_gpio);
+int arizona_init_notifiers(struct snd_soc_codec *codec)
+{
+ struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);
+ struct arizona *arizona = priv->arizona;
+
+ BLOCKING_INIT_NOTIFIER_HEAD(&arizona->notifier);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(arizona_init_notifiers);
+
const char * const arizona_mixer_texts[ARIZONA_NUM_MIXER_INPUTS] = {
"None",
"Tone Generator 1",
@@ -2573,6 +2584,30 @@ int arizona_lhpf_coeff_put(struct snd_kcontrol *kcontrol,
}
EXPORT_SYMBOL_GPL(arizona_lhpf_coeff_put);
+int arizona_register_notifier(struct snd_soc_codec *codec,
+ struct notifier_block *nb,
+ int (*notify)(struct notifier_block *nb,
+ unsigned long action, void *data))
+{
+ struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);
+ struct arizona *arizona = priv->arizona;
+
+ nb->notifier_call = notify;
+
+ return blocking_notifier_chain_register(&arizona->notifier, nb);
+}
+EXPORT_SYMBOL_GPL(arizona_register_notifier);
+
+int arizona_unregister_notifier(struct snd_soc_codec *codec,
+ struct notifier_block *nb)
+{
+ struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);
+ struct arizona *arizona = priv->arizona;
+
+ return blocking_notifier_chain_unregister(&arizona->notifier, nb);
+}
+EXPORT_SYMBOL_GPL(arizona_unregister_notifier);
+
MODULE_DESCRIPTION("ASoC Wolfson Arizona class device support");
MODULE_AUTHOR("Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>");
MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h
index ce0531b8c632..245d13c157a5 100644
--- a/sound/soc/codecs/arizona.h
+++ b/sound/soc/codecs/arizona.h
@@ -306,6 +306,7 @@ extern int arizona_set_fll(struct arizona_fll *fll, int source,
extern int arizona_init_spk(struct snd_soc_codec *codec);
extern int arizona_init_gpio(struct snd_soc_codec *codec);
extern int arizona_init_mono(struct snd_soc_codec *codec);
+extern int arizona_init_notifiers(struct snd_soc_codec *codec);
extern int arizona_free_spk(struct snd_soc_codec *codec);
@@ -317,4 +318,13 @@ int arizona_set_output_mode(struct snd_soc_codec *codec, int output,
extern bool arizona_input_analog(struct snd_soc_codec *codec, int shift);
extern const char *arizona_sample_rate_val_to_name(unsigned int rate_val);
+
+extern int arizona_register_notifier(struct snd_soc_codec *codec,
+ struct notifier_block *nb,
+ int (*notify)(struct notifier_block *nb,
+ unsigned long action,
+ void *data));
+extern int arizona_unregister_notifier(struct snd_soc_codec *codec,
+ struct notifier_block *nb);
+
#endif
diff --git a/sound/soc/codecs/cs47l24.c b/sound/soc/codecs/cs47l24.c
index 5ec5a682d186..fa9a6a5a6120 100644
--- a/sound/soc/codecs/cs47l24.c
+++ b/sound/soc/codecs/cs47l24.c
@@ -1096,6 +1096,7 @@ static int cs47l24_codec_probe(struct snd_soc_codec *codec)
arizona_init_spk(codec);
arizona_init_gpio(codec);
arizona_init_mono(codec);
+ arizona_init_notifiers(codec);
ret = arizona_request_irq(arizona, ARIZONA_IRQ_DSP_IRQ1,
"ADSP2 Compressed IRQ", cs47l24_adsp2_irq,
diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index b5820e4d5471..338a3b52705b 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -2251,6 +2251,7 @@ static int wm5110_codec_probe(struct snd_soc_codec *codec)
arizona_init_spk(codec);
arizona_init_gpio(codec);
arizona_init_mono(codec);
+ arizona_init_notifiers(codec);
ret = arizona_request_irq(arizona, ARIZONA_IRQ_DSP_IRQ1,
"ADSP2 Compressed IRQ", wm5110_adsp2_irq,
--
2.8.1
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